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User`s Manual for PowerSight PS2500

1. Any Display Other Than Current Curr More ymax More Imin f More avg More Curr More l max More Imin More avg More Curr More Imax More Imin More avg let Curr More More More More Curr A Gare era Areca oe era ef aera oe User Interface for Current Measurements current of each phase and neutral for each second will be displayed and recorded each second If in phase phase voltage measurement mode the average RMS current of each phase for each second will be displayed and recorded each second The measurements of current presented on PowerSight can also be displayed in PSM by using the remote control feature In addition our Report Generator software will present maximum minimum and average current of each phase and neutral during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change between the two intervals For instance if a comparison report is chosen and l average is 48 0 A during the first interval and 47 8 A during the second interval then the report would show Before After Units Change Change The total harmonic distortion THD and K factor of currents is displayed using the THD function discussed later in this chapter Imbalance Measurements In a perfectly balanced three phas
2. to end at a specific time or if you want it to end after a specific number of minutes hours days or whatever The option of Don t Stop allows logging to continue even after the log is completely full New data will be written over the oldest data This allows you to leave a unit logging continually and always have the most recent data available for analysis 114 Setting the Consumption Logging Period One of the most important settings is the choice of logging period This is the length of time between the creation of data records This has no effect on the measurement rate or the sampling rate Unlike inexpensive data loggers that only take measurements when a record is created PowerSight measures all its variables every second regardless of the recording rate This is very important when logging power since loads typically vary greatly and quickly The default setting for logging period is 3 minutes This means that after 180 measurements 180 seconds are in 3 minutes a record is made containing all the measurement types specified by the setup If maximum power is one of the measurement types then the maximum power of all of the cycles during the preceding 180 seconds will be recorded into the log Since the data log fills up one record at a time if the logging period is set for a large number it will take quite a long time to fill the log whereas if it is set for a small number it can be filled much faster
3. 5 amp range The HA5 is best for this The HA1000 or HA100 may be acceptable depending on the current level Once the current probes are attached it is best to set the input ratios for each of the current probes see the Setting Input Ratios section This will allow the displayed values and logged values to reflect the primary current level instead of the secondary current level This in turn allows accurate power and cost readings without having to multiply the results times some ratio Remember that these ratios are reset to 1 1 whenever PowerSight is turned off Similarly the PTs take a primary voltage and step it down to a secondary value If the primary voltage is below 600Vrms you will not need to hook up to the PTs in fact there will probably be none present The ratio of the stepping down of the voltage will be printed on the rating plate of the PT Typically this would be 2400 120 20 1 As with the CTs this ratio should be entered into PowerSight see the Setting Inout Ratios section to simplify interpreting the results 26 Connecting to 2 CT 2 PT Metering Circuit Figure 10 shows recommended connections to a metering circuit Phase1 CT with only 2 CTs or 2 PTs This type of metering circuit may be preferable when cost is an issue less instrument transformers are used or when metering a delta service with no reference to PowerSight neutral The discussion of the previous section Connections To
4. Different implementations of Bluetooth have different messages and screens for establishing communications but they all follow a similar flow First the Bluetooth device is located then it is paired and finally a serial communications channel is established with it Your Bluetooth software will probably have a Bluetooth icon shortcut on the desktop or at the bottom of the screen You will need to click on it and click on something like My Bluetooth Devices Click on it and if you have previously communicated with your meter an icon for your meter will probably appear It will have a name of PS2500 nnnnn where nnnnn is the serial number of your meter If it does not appear click on an option like Discover to find any Bluetooth devices that are in range After as much as 1 minute all Bluetooth devices that are detected and available are displayed on the screen An icon for your meter should be one of them Double click on the icon for your meter If the meter has been paired with your computer you will see an icon of a serial cable connector labeled something like SPP Slave on PS2500 nnnnn where the last characters are the serial number for your meter discussed above Double click on this to establish a communications path between Windows and the meter or right click and click on Connect The name of the communications channel to use with your meter will be displayed such as COM7 If th
5. Unfortunately no Only current probes made by Summit Technology can be used with the PowerSight Products This is because all of our probes are self identifying This means the user does not have to use an input ratio to use the probes Also unlike most other manufacturer s probes ours are individually calibrated at the factory If there is a special need to use a certain probe let us know at support powersight com 13 How do I measure voltages above 600 volts AC You must use our High Voltage probes to directly measure above 600 Volts You can use either the OkVP or the 15kVP Also see How to Measure 4160V Service on the installation CD for more information Alternatively you can hook up to metering PTs and enter their ratios into PowerSight in order to record the primary voltage 14 How do I measure a large load carried by 2 or more parallel conductors There are two approaches you can use Either use one of our flexible current probes they are 24 inches long and can form a 142 circle of 7 inches or clamp your current probe around one of the conductors and enter input ratios to read and record the correct value See the section on Measuring Multiple Parallel Conductors for details on how to do this 143 Overview of the Remote Control Keypad One of the best features of PowerSight is its user ox as lonitoring Verify Triggered Harmonics More interface A surprising SSS quickly available
6. results in only being Scania presented with the te appropriate secondary choices Often the presentation of a graph can be enhanced by changing the title at the top from the filename to something more descriptive This does not change the filename but it may 132 improve the look of the graph Also points of interest can be brought out in a presentation by adding labels to the chart The label consists of some text and an arrow To create labels or titles click on View and then Labels or click on the Modify or Add Label icon ge as or ms soos ms Normally the scale of a display is set automatically by PSM to give the best size presentation of the data However when doing before and after comparisons aT it is best to have identical vertical scales otherwise a small after number may appear to be larger than the before number You can control the vertical and horizontal scales by clicking on View and then Set Scale Normally the color of the signals is set automatically by PSM to give good color contrast on a color monitor However that contrast may not stand Select Signals to Display out on your monitor or on your color ae printer or especially with your black and Hee tt white printer You can control the Harmonic Data colors used to display signals by v Toobar clicking on View and then Change Color Scheme Whatever is displayed can be p
7. TPFT The total power factor is not the total of these individual power factors it is the ratio of the total true power over the total apparent power Typically all four power factor measurements are similar in magnitude Displacement power factor can be determined for each phase Terms for these measures are DPF DPF2 DPFs There is no such thing as total displacement power factor Typically the displacement power factors of each phase are similar in magnitude In addition the following can be measured for each phase Maximum true or displacement power factor Minimum true or displacement power factor Average true or displacement power factor Present true or displacement power factor Maximum minimum average and present total true power factor can also be measured Finally a measurement related to DPF is displacement phase angle The displacement phase angle is the number of degrees that the current at the fundamental frequency lags the voltage at the fundamental frequency In the absence of harmonics it is the inverse cosine of the true power factor It is always the inverse cosine of the displacement power factor cos DPF True Power Factor Measurements in PowerSight The present true power factor of each phase and the total true power factor can be displayed simultaneously PF1 1 00 3 1 00 on PowerSight Simply PF2 1 00 t 0 13 press the Next button repeatedly until the true power factors ar
8. a3Gl 3PT Metering Circuit applies to this circuit as well with one important exception If you clamp onto Fig 10 Recommended Connections to the CTs rather 2 CT 2 PT Metering Circuit than clamping onto each of the primary currents directly PowerSight must be operating in the 2 Current Probe mode of operation see the Phase Neutral vs Phase Phase vs 2 Current Mode section Connecting to Open Delta 3CT 2PT Metering Circuit In the open delta configuration two PTs and 3 CTs are available Make the voltage connections as shown in figure 10 of the Connections to a 2CT 2PT Metering Circuit section For current 27 connections connect the phase 1 and phase 3 probes as shown in figure 10 and attach the phase 2 current probe to the phase 2 CT You will not need to operate in the 2 Current Probe mode of power measurement since there are 3 currents being monitored Connecting to Line To DC LDC Converter Accessory The Line To DC Converter accessory order either LDC2 or LDC4 converts the voltage that is being monitored into DC voltage to run and charge PowerSight The applications of this option are Electrical room monitoring where a 120V outlet jack is not available for your charger Monitoring where an extension cord from a 120V outlet jack would be a safety hazard Monitoring on a rooftop power pole or power pad Reliable charging for the meter when there is concern that an available 120V outlet jack ma
9. 12 000 Arms If it appears that a current probe is not attached NA will be reported for that measurement I2 171 IN 0 00 The current summary is updated once per second Averages maximums and minimums need to be obtained from the data log For more information on current see the section Current Measurements True Power KW Summary This display shows the present values of true power in each phase and the total true power All measurements W1 12 K W3 16 K are in watts If higher W2 11 K Wt 38 K powers are present K or M is added to indicate thousands or millions of watts For instance W1 12K means that the power of phase 1 is 12 KW or 12 000 watts Or Wt 36K means that the total power of all phases combined is 36 000 watts If a current probe is not attached NA will be reported for the power for that phase The power summary is updated once per second Averages maximums and minimums need to be obtained from the data log 54 For more information on true power see the section Power Measurements Apparent Power KVA Summary This display shows the VWAL 24 K 3 29 amp present values of apparent VA2 20 K t 73 K power in each phase and the total apparent power All measurements are in VA If higher powers are present K or M is added to indicate thousands or millions of VA For instance VA1 12K means that the apparent power of phase 1 is 12 KVA or 12 000 VA Or t 36K me
10. PowerSight section The Next button is pressed repeatedly to move through these messages Following the analysis of connections pressing the display presents a series of measurement summaries and then administrative data If the logging start mode is set for start when signal present and a voltage or current signal is present logging will automatically start at this point The remainder of this section explains the various measurement summaries and administrative data displayed on PowerSight Voltage Summary This display shows the present values of voltage for each phase All measurements are in volts RMS If higher V1IN 118 Volts voltages are present K V2N 117 V3N 118 is added to indicate thousands of volts For instance V12 12K means that the voltage between phases 1 and 2 is 12 000 Vrms 53 To conserve display space the summary for the third phase does not have V displayed Thus 3n 277 means V3n is 277 Vrms The voltage summary is updated once per second Averages maximums and minimums need to be obtained from the data log For more information on voltage see the section Voltage Measurements Current Summary This display shows the present values of current for each phase and neutral All measurements are in amps 2 RMS If higher currents ieee eee are present K is added to indicate thousands of amps For instance 11 12K means that the current of phase 1 current is
11. View 2 x Now select a view of voltage a ae Can and current and phase 1 C Voltage ESE ey only Check how much time ee pesi per passes between the peak of the voltage and the peak of the current It must be within 51 90 degrees Next select a view of phase 2 only and then phase 3 only In each case note the time delay between the peak voltage and the peak current It should be close to the same If one current leads voltage and the other two currents lag voltage by different amounts then two of the voltage or current probes are probably switched If the delays are the same for all phases but they are more than 90 degrees then the current probes are probably not matched to the correct voltages probes and will need to be moved without changing the phase sequence 52 Conventional Motor tPF 0 87 Electronic Load tPF 0 63 dPF 0 99 AN V V tPF 0 73 l dPF 0 94 V12 a Typical Phase Relationships Between Voltage and Current The Next Button Overview The PS2500 has only one control the Next button It is located to the left of the On Off switch on the front of the meter Pressing the button moves the display forward in its sequence of messages When the PS2500 first powers up the connections are analyzed and the results are presented on the display This is explained in detail in the Verifying Connections using
12. and then click on Receive and View to transfer the waveform set to your computer The default name of the file is psm01 wfm Remember that waveset1 is special It is an automatic recording of the waveforms at the time that monitoring last began 98 Viewing Consumption Waveforms To select a waveform set to view at the main menu click on View Consumption Data or click on View and then View Consumption Data or click on File and then View Consumption Data Any of these approaches will result in the View PowerSight Manager PowerSight Manager Version 3 1T Jun 5 2004 Ef Data setup PS40000 Setup Communications Serial Number 41356 p Receive or View Data Pi l Unt 65 E2 receve naa fara 620 Warranty Ends 05 25 05 P View Consumption For Use With PSM 3 1 iS al Data i Serial Comm enabled Datalogging enabled 3 i Harmonics enabled View Swell Dip Data Maver Enero ETE View Transient Data Consumption Data screen being shown In the Types to View section click on Stored Waveforms if necessary to select that choice A list will appear of all wavesets located in the directory shown in the Look In box If you wish to look in a different directory use the standard Windows methods for changing the directory that is shown Next select a specific waveset by double clicking on it Primary Choice Secondary Choice iew When yo
13. ea arena Remote Control on the z z i main menu An image of the connected unit will cary Ve Conos coe ye appear At this point you Feared Fan ngs Dat can activate individual EIE Ven Transient Data keys by clicking on them with your mouse or by typing in the 126 character that is underlined in the image for instance type in P to activate the Power key Locating and Installing Software and Firmware A tradition of PowerSight models is that the products continue to improve and as they improve those enhancements and features are made available to users who elect to stay under our enhanced warranty see http www powersight com warranty shtml Our PSM software continues to improve and is available for download via the web The software that resides in PowerSight is called firmware it s not as soft to change as software is but is not as hard as hardware The PS2500 has the ability to have its firmware upgraded via Bluetooth communications with PSM or via the SD card This keeps your meter from getting out of date and saves you the trouble of returning it to the factory for an upgrade To upgrade the firmware you must first get the newer version of firmware from Summit Technology from our web site or via email To upgrade via PSM click on Tools on the main menu of PSM and then click Firmware Upgrade The Firmware Upgrade window will pop up Locate the firmw
14. eee 56 Time SuUmmMahy srecno telnet alana 56 Identifying the Meter 0 0 cc cceceeseescessescesecssessceseeseesecseseecseesesaeeeeeaeeneaes 57 Identifying Operating Parameters ce cccccccceeseccsssesscccseeseseeeceeseeseees 58 Measurement Types cccccceeseeseeeeeeeeeeeeeeseeeseeeeeeeeeeeeeeeesenees 59 Voltage Measurements 2 0 0 eeseescsseeeecseseeecseeseecaseaeecaeeaeercateaeerenseaters 59 Voltage Measurements in PowerSight c cccseceseeeesesesseeeseeeeeeeeneeees 60 Voltage Measurements in PSM ceccccceseeeseseseseeseceseeeeeeeceeeeeateeeeseates 60 Current M aSUreMenttS ccccceccssesseseescsceseescseesescsessesscsessesecseseeseseeaes 62 Current Measurements in PowerSight seseseccsseseseeeeseeeeeseseeeeees 63 Current Measurements in PSM ceccccsseceseeseseeeseeceseeeeseecseeeeseeceeeseates 64 Imbalance MeaSureMent ccceccecceseescessesseesceseescesecseesecseeeeeeseeeeeaeeseeaes 65 Imbalance Measurements in PSM cccccccescescseeseescseeseescseeseeeceeseeeees 66 Power MeasSurementts cccccesccssesccsseesceseescesecseesecneeseenseeeeeseeseesecseeaeenees 66 Power Measurements in PowerSight cccccccseceseeeeseecsseeeseeeeeeeeaeees 67 Power Measurements in PSM ccccccscssscccssesecccseeeccecesecessecseceeseeseees 68 Power Factor Measurements ccccecccsesceseeesceseeseeseeseeseeneeseeaeeseeaeenees 69 True Power Factor Measurements in Po
15. input is in this frequency range PowerSight can also measure the true RMS of DC and rectified signals that are also connected while in this measurement mode It is generally recommended that you operate in one of the fixed frequency modes whenever you can One reason is that there is the potential of slight errors in measuring the frequency of certain waveforms A slight error in frequency will add a slight error in the measurement of all other variables Another reason is if you are measuring small voltages or currents they may not be large enough for an accurate frequency measurement even though they might be large enough for an accurate RMS measurement Although these situations are unusual they can happen For that reason we recommend one of the fixed frequency modes when practical The fixed frequency measurement mode is necessary when measuring DC voltage or DC power In a DC system the frequency is 0 Hz which is clearly outside of the variable frequency measurement range By setting PowerSight in one of the fixed frequency measurement modes PowerSight no longer measures the input frequency each second it simply assumes the frequency This assumption of the time required to measure the inputs allows for accurate readings in DC systems and systems in which only higher harmonics are present as with rectified 90 signals It also allows accurate readings of AC and mixed AC DC signals such as AC ripple on a DC voltage Cha
16. is the instantaneous voltage of the greatest magnitude either positive or negative over a period of time A measure that changes continuously is of limited use A far more useful measurement is RMS voltage wherein a single number is generated to describe a continuously varying voltage The beauty of RMS voltage is that in power calculations it makes a contribution to power roughly equivalent to a DC voltage of the same magnitude RMS voltage is defined as the square root of the mean of the square of the instantaneous voltage over one gt cycle of the fundamental frequency Vrms K 59 When measuring DC volts the RMS value is the same as the DC value Voltage crest factor is the ratio of peak voltage of a cycle over the RMS voltage of the same cycle Vcf Vpk Vrms A perfect sine wave has a crest factor of 1 414 J2 Maximum minimum and average voltage in power measurements refers to the maximum minimum and average of RMS voltage measurements during a time of interest In the PS250 the present voltage is the RMS voltage calculated for the most recent second Maximum minimum and average are based on these one second measurements Voltage Measurements in PowerSight The present RMS voltage of each phase can be displayed simultaneously on PowerSight Simply press the Next button repeatedly until the voltages are displayed V1N 118 Volts They will be updated once V2N 117 V3N 118 each second In phase neutra
17. necessary The most common occurs when monitoring a large main circuit to a facility The current may be too large to measure with the current probes you own or you may not be able to physically clamp around the cables or bus bar or the voltage of the bar may exceed the insulation rating of the current probe In these instances a permanently installed CT and or PT may be wired in for a metering system By clamping onto the secondary of such a CT typically with an HA5 probe or attaching directly to the PT with voltage probes you obtain readings proportional to the primary side of the CT or PT Entering the ratios of the CT and or the PT into PowerSight allows all recorded values to be scaled appropriately PowerSight then records primary values although it is connected to the secondary There are other instances where input ratios are valuable Ifa large current is carried by 2 or more parallel conductors you can clamp onto 1 conductor enter in the ratio for instance 4 total conductors to 1 measured conductor and thereby record the total power without clamping around all the conductors However before you use this approach verify that each conductor is carrying the same amount of current It s not uncommon for parallel conductors to carry different loads when high currents are involved If the loads are different in each conductor you may enter the appropriate input ratio For instance if the measured total of 4 cables is 2005 amps and t
18. received by PSM eee in either of two ways At Ef date setup Ps0 z the Main Menu you can A Setup Unit ab Connect to Unit either click on the Sain Receive Data button or EV on the Data dropdown Receive o View Dat Spral al lo button and then Peay Receive Data ae ea Receive Data In Warranty Ends 05 25 05 i nsumpti For Use With PSM 3 1 either case the Receive pee Serei Comm enabled 97 Data menu will open and all the different types of data files in the connected PowerSight will be displayed Make sure Receive Data E HE Data Types to Receive Data Destination C Receive amp view D that there is a mean e Rw H M Swells and Dips Ser c h ec k in th e I High Speed Transients Fetter Cancel box before the a line Select All Select None C ti Time Date Data Type Events To File joa Receive Status onsumption 07 06 04 11 07 34 Log 2872 psmlog iges ees sets a ata Records D ata in th e 07 06 04 11 07 34 Swell Dip Log o psm sig eae 07 06 04 11 07 34 Swell Dip RMS Graph psm tlg 0 Corrections 0 m 07 06 04 11 07 34 _ JyansisghLoo 0 psm tig Data Types to 07 16 04 04 3048 Waveset 1 psm01 wfm gt R ec eiv e 07 08 04 13 0008 Waveset 1 psmO2 wim Log Gpions Retain Log section Then Boe look for the Waveset Data Type lines These files are the stored waveform sets stored in the PowerSight Make sure that the box at the start of the line is checked
19. shown is a comparison report so there is information about the source of the before data and separate information about the source of the after data After the source information is the main body of the report Each measurement type is listed in the first column The Before column is the one number summary for the measurement type for the before time period If itis an average like Voltage Phase 1 Avg the value is the average over the before timeframe If it is a maximum like Voltage Phase 1 Max it is the maximum over the before timeframe If it is an estimate like Cost estimated per month it is an estimate of what the value would be for one month if the before data continued for the entire month After the Before column is the After column This provides the summaries for the measurement types during the timeframe of the after data The next column is a statement of the units associated with the before and After columns For instance the Units for voltage measurement types is volts 122 The next column is the Change in the value of the After column from the data in the Before column The values of this column use the same units as the Before and After columns such as volts At the far right is the Change column This presents what percent the before data has changed in goin
20. the magnitude of the third harmonic 180 Hz might be 60 amps H5 might be 30 amps H7 might be 15 amps and all the other harmonics might have magnitudes of 0 In this case the magnitude of the THD F would be 2 2 2 rap t30 415 _ sag 120 K factor is a derivative of calculating THD where the frequency is given extra weight Each harmonic current amplitude is divided by the total RMS current multiplied by the harmonic number then squared and then summed over the first 50 harmonics 2 I xh K _ factor 2 rms This is a valuable measurement to observe when the heating effect of harmonics is a concern Using the numbers from the 84 example above for calculating THD the total current of the waveform is Irms 4120 60 30 152 138 3A 120x1 60x3 30x5 15x7 K _ factor 138 3 138 3 138 3 138 3 0 75 1 69 1 18 0 58 4 20 Harmonic Measurements in PowerSight The PS2500 performs harmonic measurements if the Harmonic Analysis option HAO has been installed When the HAO is installed THDs can be included in the data log but THD results are not displayed on the meter There are other PowerSight models that display THD measurements on their displays Harmonic Measurements in PSM The consumption data log can record the average THD F of each phase of voltage and each phase of current for each logging period The summary values at the top of the screen are the average of all
21. through the touch of a Caan Time button We have Z attempted to make the E Accept E ee reronn on EA interface intuitive and Fr 5 a eT flexible Many functions mn wear eee Jfer c can be accomplished in several ways PS3500 Keypad Here is a quick overview of the functions of each key Monitoring On Off for starting or stopping of monitoring of consumption swell dips and high speed transients and for capturing spectrum analysis data with the FAO option or on line motor analysis data with the AMD option Verify Connections uses SureStart to determine what potential errors in connections and settings exist Harmonics for measuring THD and individual harmonics combine it with the More button for more information More for getting more detailed information such as max min avg or estimates of per hour month year after pressing one of the other keys Volt read phase phase or phase neutral true RMS voltage combine it with the More button for more information Current read true RMS current of any phase or neutral combine it with the More button for more information Power read true power watts VA or VAR combine it with the More button for more information Energy read energy consumed KWH obtain estimates with the More key Cost read cost of energy consumed obtain estimates with the More key 144 Freq read fundamental frequency combine it with t
22. to a three phase wye power service Figure 1C presents normal three phase delta service Voltages are usually measured from phase to phase In North America service is usually supplied as 120V 240V 480V 600V 4160V or 12 500V In most of the world phase to phase service is usually supplied as 381V 5 716V or 11 481V Summit Technology has voltage probes for direct connect to all of these services Refer to 14 figure 7 for how to connect to a delta power service When there is no access to measuring one of the currents figure 8 presents the 2 current approach for measuring power This approach is also useful for measurement of an open delta circuit as described in Connections to an Open Delta Circuit 2PT 3CT figure 10 Although phase to phase is the normal voltage measurement mode for this service PowerSight can be set to phase to neutral even though the neutral is not connected In this case the measured voltages will be phase to metering neutral such as V1N ViN 277V for a 480V service and all other measurements will also be correct Figure 1D presents three phase four wire delta service In this configuration a neutral is supplied from a point midway between two phases This is handy when 240V delta is supplied V2n and V3n supply conventional 120V single phase power and V1N provides 208V if needed In this configuration depending on what you are measuring you may choose to measure in phase to phase mode or in phase to
23. to correlate logs and events from several units located at different points at a site It also results in nice presentations of logs from site surveys when all units are programmed to start monitoring at the same moment and their graphs reflect this Setting Operational Features of PSM Several operational features of PSM are grouped together for easy access To access them click on Software Options at the main menu The Software Options window will pop up You can select the serial port used for communications by clicking on the Serial Port box You xi can adjust the speed of Serial Port Speed Language _ 9 K communications with an a 500 American A attached PowerSight by Details clicking on the Speed box This speed is the ea speed of the Bluetooth link not the speed of data being fed to it Therefore it should not affect the general throughput of the data You can click on the 128 Language box to change the language of the user interface Clicking on British will result in a European representation of the date date month year Clicking on American will result in a North American representation month date year Putting it all Together Monitoring for the First Time This section is intended to insure that you will be successful in your first and later monitoring attempts There are several ways to start monitoring If you wish to use the default values simply turn the unit on press Monit
24. 2 For instance if the cost is 0 50 for a 10 minute period then the estimated cost per year is Sose Imo 7 0 50 x la A 2 190 3 St 10x12 Cost Measurements in PowerSight The PS2500 does not do cost measurements There are other PowerSight models that do cost measurements 76 Cost Measurements in PSM Our Report Generator software will calculate the elapsed cost and estimated cost per month of energy consumed during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change in cost between the two intervals For instance if a comparison report is chosen and 0 50 of energy is consumed during the first interval of 10 minutes and 0 80 of energy is consumed during the second interval of 20 minutes then the report would show Before ost Cost Estimated per month In this example even though the elapsed cost increased significantly the actual rate of cost declined significantly because of the difference in time intervals between the before and after tests You may view or change the rate used by Report Generator to calculate cost It is one of the fields you can change when you set up a report Demand Period Measurements Utilities typically evaluate energy usage over fixed increments of time such as 15 minute intervals These time intervals are called demand periods The average power consumed during each demand period is calle
25. 2 ii 3 1 2 3 al Sometimes an ge so we isa ma mo ma ne as aa Da order of 3 2 1 is Tine AER correct Some utilities deliver power in that sequence and sometimes a motor will be connected in that manner to make it spin backwards An order of 2 1 3 or 1 3 2 is the same as 3 2 1 the reference point just starts in a different place for instance 2 1 3 is a portion of the continuing sequence of 3 2 1 3 2 1 Checking Current Levels Using PSM Next click on the blue Back Arrow icon and select Current Set All and View Now that you are viewing the current waveforms there are several questions that need to be answered First are the sizes of each Rss of the three phases S Bas 7 reasonable depending on KE cnet the type of load currents et and Curent of each phase may be very similar or fairly different The RMS value of each waveform is listed in the heading of the graph such as li with 136 5 beneath it indicating that l 136 5 amps similar to how they are presented for voltage as seen in the Checking Voltage Levels section Also check the shapes of the current waveforms Some of the more common current 50 waveforms that may be seen are shown in the Checking Phase Lag Using PSM section below Checking Phase Sequence Using PSM While still viewing all current waveforms of a three phase system notice how they reach their peak value Each of the pea
26. CAT IV per IEC61010 1 2001 IP40 IP44 with CAS W option per IEC 529 Power Requirement 12 VDC 50 ma wall mount power supply included Internal Ni Cad operates up to 10 hours after overnight charge Voltage Input Range 1 600 Vrms steady state direct input or 600 5 000 Vrms with 5KVP probes or 600 15 000 Vrms with 15KVP probes Display Range 1 6 megavolts using input ratios Accuracy 0 5 of reading 0 2 Vrms below 400V 2 Vrms above 400V Measure Rate Once per second for each input Frequency Response No de rating of accuracy for harmonics through 1500 Hz Current Input Range 0 01 5000 Amps AC or DC with the proper current probe attached With HA5 0 02 5 Amps With HA100 0 1 100 Amps With HA1000 1 1000 Amps With eFX3000 1 6000 Amps in two ranges with auto ranging With DC600 5 600 Amps DC Display Range ima 6 megamps using input ratios 148 Accuracy 0 5 of reading plus accuracy of probe Measure Rate Once per second for each input Frequency Response dependent on current probe attached With HA1000 no de rating of accuracy for harmonics through 3900 Hz Frequency Range DC 45 66 Hz 360 440 Hz fundamental frequency DC and 45 1650 Hz included in RMS 45 3300 Hz for harmonic measurements Accuracy 0 5 Power Energy Cost Power Factor Display Range 1 watt 60 megawatts using input ratios Accuracy 1 0 plus accuracy of current probe Measure Rate Once per seco
27. KWH 4380 20 0 In this example even though the actual energy increased significantly the actual rate of energy use declined significantly because of the difference in time intervals between the before and after tests 75 Cost Measurements The cost of energy consumed is defined as the product of the energy consumed times the user defined rate KWH x rate PowerSight presently uses a simple single rate price system Useful measurements and estimates of cost are Cost of energy consumed elapsed cost Estimated cost per hour Estimated cost per month Estimated cost per year The cost of energy consumed is the actual cost of energy consumed during a period of time such as since monitoring started or during a specific week For instance if 5 KWH was consumed after 10 minutes of monitoring and the rate is 0 10 KWH then the cost during the monitoring session is 0 50 The estimated cost per hour is the elapsed cost divided by the hours of monitoring For instance if the cost is 0 50 for a 10 minute period then the estimated cost per hour is e 050x 3 00 snk io The estimated cost per year is the elapsed cost divided by the fraction of a year that monitoring has proceeded For instance if the cost is 0 50 for a 10 minute period then the estimated cost 60x 24x 365 per year is 0 50x aaa 26 280 est yr The estimated cost per month is the estimated cost for a year divided by 1
28. S current calculated for the most recent second Maximum minimum and average are based on these one second measurements Current Measurements in PowerSight The present RMS current of each phase can be displayed simultaneously on PowerSight Simply press iSem ESAE the Next button I2 171 IN 0 00 repeatedly until the currents are displayed They will be updated once each second Note that when PowerSight is operating in 2 current mode l2 is not measured or displayed When measuring DC current the RMS value is the same as the DC value To set PowerSight for reading DC currents refer to the section on Setting Measurement Modes Remember that you need to have a DC current probe in order to read DC current 63 Current Measurements in PSM The consumption data log can record maximum minimum and average RMS current for each phase for each logging period The summary values at the top of the screen are the maximum minimum and average of all the values shown on the screen When viewing consumption waveforms the average RMS of the cycles of the waveform is shown at the top with the average crest factor listed below it The instantaneous value of each point of the waveform can be determined using the vertical scale If a harmonic analysis is displayed the RMS current is also listed If trending data is being recorded and PowerSight is operating in phase neutral voltage measurement mode the average RMS
29. The log capacity is displayed in the secs left of the Data en Ea H Coes son Coes son Setup menu just above the selection area for logging m Monitoring Activities period In the example shown p Operation Setup the logging period is set for 3 Logging Period minutes Units minutes and the time to completely fill the log is 2 083 days To change the logging period from minutes to seconds or from seconds to minutes click on the drop down box at the right end of the Logging Period line in the data setup To change the number of minutes or seconds simply change the number to what you want When you are satisfied you can save the custom setup to a file or send it to the attached PowerSight Setting Measurement Types In addition to the measurement types listed in the default data log the following measurement types can be included in each record of a custom data log 115 average true power of all phases combined maximum true power of all phases combined minimum true power of all phases combined average apparent power of all phases combined maximum apparent power of all phases combined minimum apparent power of all phases combined average true power factor of all phases combined maximum true power factor of all phases combined minimum true power factor of all phases combined THD of voltage in phase 1 THD of voltage in phase 2 THD of voltage in phase 3 THD of current
30. User s Manual for PowerSight PS2500 Summit Technology Inc Walnut Creek CA 94597 Tel 1 925 944 1212 Fax 1 925 944 7126 support powersight com http Awww powersight com Rev for FW 4 43 SW 3 4H Copyright 2012 by Summit Technology PowerSight is a registered trademark of Summit Technology Inc The PowerSight model PS2500 is designed to comply with part 15 subpart B of the FCC Rules for a Class A digital device Model PS2500 is designed to comply with the requirements of IEC61010 1 2001 for a 600V input rating measurement category IV pollution degree II double insulated electronic device Model PS2500 is manufactured by Summit Technology Inc in the U S A The standard warranty period is 12 months from date of purchase We encourage you to advise us of any defects of design or manufacture of any of our products We are dedicated to your successful use of the product A There are no user serviceable parts in your PowerSight meter Opening the case voids your warranty and may result in present or future danger to users of the meter The rechargeable battery inside is a custom designed battery pack that is only to be replaced by authorized Summit Technology technical service personnel A Cleaning is to be done by use of a dry or damp piece of cloth Grease may be removed by light application of isopropyl rubbing alcohol Avoid the use of solvents since they may dissolve or weaken the plastic enclosure Do not use w
31. VAVASVAq More l Power User Interface for Power Measurements For instance if a comparison report is chosen and Wtotal average is 480 W during the first interval and 478 W during the second interval then the report would show Before Change Change Power Factor Measurements Power factor is often misunderstood The definition of power factor is the ratio of true power in watts to apparent power in VA But it is often used as an indication of how much current lags voltage in a circuit When no harmonics are present power factor does this well When harmonics are present there is no necessary relationship between power factor and current phase lag To help differentiate what is meant by power factor we talk of two different power factor measurement types true power factor and 69 displacement power factor PowerSight measures both of these True power factor as its name implies is the true measurement of power factor It is the ratio of true power over apparent power TPF Fine or TPF When this ratio is less than 1 00 app then reactive power is present Reactive power may be the result of current lagging voltage due to the inductance of the circuit It may also be the result of delayed harmonic currents that result form small driving harmonic voltages A typical electronic load may have a power factor of 0 70 and yet the current
32. You can enter a name of your choice by clicking View and then Labels 3 The name and metric of the vertical axis tells what type of measurement is being displayed and what the unit of measurement is When the graph combines different types of measurements such as when displaying voltage and current there will be a vertical name and metric on the left side and a different one on the right side of the graph 4 The horizontal axis is usually time Logs have time and date stamps to help determine when events occurred and how long they lasted Other graphs and waveforms have metrics of seconds or milliseconds Displays of triggered graphs or waveforms usually start with a negative number This is an indication of how far in advance of the triggering event that point is 134 5 All graphs and waveforms have a time and date stamp In the case of consumption logs the left most timestamp is when the displayed data began In the case of triggered events the time and date stamp is when the event occurred 6 All graphs and oe waveforms have data Ah aami Aee Ss 72 e that is displayed The i 0 GED heading tells which signal or measurement o is associated with Y which data The color z of the heading is the zE same as the color of mof VM the data presentation oe ae B 7 Summary data is displayed on all graphs and waveforms a For a consumption log the summary data for a specific heading depends on th
33. ad waveforms it may be slightly less accurate in its current readings and most importantly if you operate in positive negative power measurement mode power readings will be disastrously wrong 13 Introduction to Power Delivery Configurations Figure 1 presents most common power ee et vy v V N V 1 delivery n en 2 i ingle Phase configurations Split Phase PowerSight is able to V VN measure voltage V2 current power power factor and more for V Bytes Prage Four Wire Wye all of these systems C ANA A 2 Figure 1A presents Three Wire Delta the normal single Vy Vy phase and split phase service as found in a aN residential service In V3 Vn Vo Lvs v North America ViN 2 and V2n are 120V Four Wire Delta Grounded Delta and are 180 degrees out of phase with Fig 1 Common Power Delivery each other When Configurations heavier loads are encountered V12 240V is used by delivering both hot voltages to the load Neutral provides the current return path If the load is balanced there will be relatively little neutral current Refer to figures 2 3 4 and 5 for various ways to connect to single phase and split phase power service Figure 1B presents normal three phase wye power service Voltages are usually measured from phase to neutral Neutral provides the current return path If the load is balanced there will be relatively little neutral current Refer to figure 6 for how to connect
34. ains its accuracy for frequencies up to 20 000 Hz With our spectrum analyzer option order FAO it can be used to measure frequencies up to 100 000 Hz riding on the power line This allows accurate current and power readings of distorted waveforms accurate readings of harmonics and the measurement of current transients that other probes would not even detect Phase shift is also an important probe characteristic The HA1000 has less than 1 2 degree of phase shift across the frequency range when measuring currents above 50 amps and just 1 5 degrees at 5 amps This means that instantaneous measurements of power are highly accurate regardless of the waveform shape The phase shift characteristics of most other probes on the market are not this good This results in erroneous power and cost measurements and distorted waveforms Please Note To diminish phase shift when measuring small currents it is advisable to clamp onto multiple turns of the same conductor in order to increase the effective current being sensed 10 The HA5 offers two advantages over the HA1000 but these advantages come at a cost Its advantages are that the HA5 is a very small size 5 25 x 2 00 x 1 35 inches and second it offers much greater sensitivity since it reads currents from 20 milliamps to 5 amps as compared to the HA1000 measuring 1 1 000 amps The tradeoff is accuracy The probe has a basic accuracy of 2 and its phase shift varies by frequency and by ampl
35. alanced three phase system the phase neutral voltage is equal to the phase phase voltage divided by the square root of 3 Von Vpp 1 732 In practice systems are usually not balanced but this gives an idea of what voltage to expect as you change the voltage mode from phase phase to phase neutral There is a third voltage measurement mode that may be active in your unit It is the 2 current mode or the V12 V32 only mode In this mode only two phase phase voltages are used and displayed The 2 current mode actually involves a different method of measuring power and therefore is actually a different power measurement mode but since it is independent of the other power measurement modes and yet is an alternative to the other two voltage measurement modes it is treated as a voltage measurement mode When in this mode only V12 and V32 not V23 or V31 are measured and displayed It is important to note a limitation of operating in phase phase mode The power factor and power reading for each phase are not necessarily accurate This is not due to any accuracy problem with PowerSight Instead it is the result of each phase s current being the result of two different phase phase voltages whereas a phase s power and power factor calculations rely on only one of the phase phase voltages Therefore although the power factor and power readings have diagnostic value they are not true representations of the actual power factor or power being used fo
36. also be displayed in PSM by using the remote control feature Any Display Other Than Voltage Volt Vn More V ymax More V ymin More Vyavg More Volt More Vama More V ymin More Vpyavg More Volt More More More More Volt All IVa po CENNA Me ase Mo Frees More E Von Van All Voltages All Voltages Jan Frees og Volt User Interface for Voltage Measurements 61 In addition our Report Generator software will present maximum minimum and average voltage of each phase during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change between the two intervals For instance if a comparison report is chosen and V12 average is 480 V during the first interval and 478 V during the second interval then the report would show Change Change Before After Units The total harmonic distortion THD of voltages is displayed using the THD function discussed later in this chapter Current Measurements Current is the flow of charged particles usually electrons through a point Current is measured in units of amps which is short for amperes and its symbol is commonly I In AC circuits current often varies continuously and always reverses direction In DC circuits it is usually steady and never reverses direction If the cur
37. amental voltages and currents are in phase and no harmonic currents are present reactive power is zero Peak demand of the demand period is an important measurement that is covered in the Demand Period Measurements section Power Measurements in PowerSight The present true power of each phase and the total true power of all the phases can be displayed simultaneously on PowerSight Simply press the Next button repeatedly until the W1 12 K W3 16 K true powers are displayed W2 11 K Wt 38 K They will be updated once 67 each second The present apparent power of each phase and the total apparent power of all the phases can be displayed simultaneously on PowerSight Simply press the Next button VA1 24 K 3 29 K repeatedly until the true VA2 20 K t 73 K powers are displayed They will be updated once each second Power Measurements in PSM The consumption data log can record maximum minimum and average true power and apparent power for each phase for each logging period In addition is can record the maximum minimum and average true or apparent total power When graphed the VAR can be displayed The summary values at the top of the screen are the maximum minimum and average of all the values shown on the screen When viewing consumption waveforms the average true power of the cycles of the waveforms are shown at the top right if both voltage and current were recorded If all phases are displayed only the total
38. ans that the total power of all phases combined is 36 000 VA If a current probe is not attached NA will be reported for the VA for that phase To conserve display space the summaries for the apparent power of phase 3 and the total apparent power do not have VA displayed Thus t 2770 means total apparent power of all phases is 2770 VA The apparent power summary is updated once per second Averages maximums and minimums need to be obtained from the data log For more information on apparent power see the section Power Measurements True Power Factor Summary This display shows the present values of the true power factor of each phase and the total rue powera Al pea a 00 9 00 0 00 to 1 00 For instance PF2 1 00 t 0 13 PF1 0 92 means that the true power factor of phase 1 is 0 92 To conserve display space the summary for the true power factor of phase 3 and the total true power factor do not have PF displayed Thus t 0 82 means total true power factor of the load is 0 82 If a current probe is not attached NA will be reported for the true power factor for that phase 55 The true power factor summary is updated once per second Averages maximums and minimums need to be obtained from the data log For more information on true power factor see the Power Factor Measurements section Logging Summary This summary is actually a collection of three separate Ela
39. ard Press Yes It will then look in the serial number directory for data setups The friendly name of the setup will be displayed If you want to load the setup press Yes otherwise press No If there are no data setups in the serial number directory or you do not accept any of them it will next look in the root directory to see if there are data setup files It will then ask if you wish to load any of them If there are no data setups in the root directory or you do not accept any of them it will ask again if you wish to load a data setup from the memory card This functionality makes it easy to load multiple setups onto an SD card to support a test plan including multiple locations and involving multiple meters 118 Saving Data Setups to the Memory Card SD Card It is beneficial to store a copy of the present data setup onto the SD card to document how a monitoring session was set up This is done automatically when an SD card is installed Each time monitoring starts and an SD card is in the meter a serial number directory is created if it is not already present and a logging directory is created to hold the various files created by the monitoring session A copy of the data setup is stored in the logging directory at that time As an example say a meter with serial number 12345 has an SD card installed that will be read on your computer as drive F and say monitoring was started at 11 22 33 on June 24 2012 You could encode t
40. ard if it is already mounted and then insert it firmly back into the slot Do not insert or remove a memory card while the meter is monitoring this limitation will be removed when supporting firmware becomes available and will be a free upgrade 39 Generally any SD or MMC memory card that is from 64 MB through 2 GB in size will work in the meter If it does not the meter will display Incompatible Format The meter will not write over existing files and pictures on the memory card so memory cards from cameras etc can be used when needed Presently the meter only reads cards that are formatted using the FAT16 or simply the FAT file system Cards below 64MB will typically use the FAT 12 system and will need to be reformatted to FAT 16 in order to be used in your meter Cards that are 4 GB and above use the FAT32 system and cannot be read by the meter this limitation will be removed when supporting firmware becomes available and will be a free upgrade Cards between 32 MB and 4GB that have been reformatted will generally not work with your meter unless they are reformatted again to FAT16 the default format for Windows is FAT32 so a reformatted card is usually FAT32 Do not change the location of the files and folders that are automatically created when the card is inserted into the meter Any changes will likely make the data impossible for your PowerSight Manager PSM software to locate them Using t
41. are upgrade file and Sone ae TB rewnmrom then click on Upgrade The Gitiiversmynm Mamata process will take several EXE ve wee minutes For detailed instructions examine the application note UpgradingFirmware pdf located on your installation CD To upgrade via SD card write the new firmware file onto your SD card in the root directory the highest folder of the file hierarchy on the card Turn on your meter enter Remote Control mode and click on the virtual Admin key many times until it displays Upgrade Firmware from Memory Card Click on Yes and follow the instructions that are displayed 127 Setting up Administrative Features of PowerSight via PSM As a convenience several of the administrative settings of PowerSight can be set within xl PSM At the main menu with a Greetings PowerSight meter connected Linel ia click on Setup Unit and the ee Setup Unit window will pop up Technologies He The present personal greeting date and time and KWH cost rate 0T e se will be displayed Simply make josz aa forsri7 any changes that you wish and Unit en click OK The changes will mm be made to the attached PowerSight A very important feature is the ability to synchronize the time of the connected PowerSight to the time of the PC This is nice for quickly and accurately setting the time but it is also very important for synchronizing multiple PowerSight units in order
42. ariation of delta is four wire or center tapped delta see figure 1D In this configuration if the main interest is in measuring phase neutral voltage then connect the neutral voltage to the neutral input for more accurate voltage readings Connecting to Three Phase Four Wire Delta Power Figure 6 presents the recommended connections to a three phase delta system where a neutral is provided from the center of one of the phases Be sure to follow the safety warnings of the previous sections before making the connections This type of system allows delivery of both three phase and single phase power The three phase power is typically 240V for running motors The dual single phase power is typically 120V for running lights and small equipment from one power service It also provides 208V Depending on what you intend to monitor it may be appropriate to set PowerSight in phase phase voltage measurement mode to monitor three phase loads or to look at total power or in phase neutral voltage measurement mode to monitor single phase loads Although the selection of voltage measurement mode affects what voltage levels are displayed and recorded phase phase versus phase neutral it does not affect the power and power factor calculations Connecting to Three Phase Grounded Delta Power Figure 7 presents the recommended connections to a three phase system with one phase tied to ground No connection is made to the neutral input O
43. arranty after that date will cost extra The next number is for the use of Summit Technology personnel The final number is the highest level of PowerSight Manager software that the unit is presently eligible to work with 125 Other Functions within PSM Introduction In addition to the many power analysis functions of PSM that have been presented in previous chapters there are several other functions available These are functions of convenience functions for setting up attached PowerSight meters and functions for setting up the PSM program They include Operate PowerSight via remote control Install new firmware Setting the initial greeting of the connected PowerSight Setting the time of the connected PowerSight Setting the cost KWH of the connected PowerSight Selecting the communications port of your computer Selecting the speed of communications of your computer Selecting the language of PSM Enabling serial communications debug mode Remote Control of PowerSight Remote control operation allows operating a connected PowerSight unit from your computer Your mouse and keyboard actuate the keys of the attached PowerSight A picture of the PowerSight and its display are visible on your computer screen This is very handy for operating a unit remotely and for operating and displaying the readings of a unit to many people at one time To enter the remote AE teehee sid control mode of gew Psw Z k operation click on
44. ater or other conductive liquids since they may pose a safety risk A Use of this equipment in a manner not specified by Summit Technology can result in injury and voiding of warranty Table of Contents Introducing PowerSight ccccccesssesesseeeeeeeeeeeeeeeeeeeeeeeeeeeeenees 7 In a Hurry The Basics of Operation eeeeceeeesseeeeneeees 8 Connecting to PowerSight cccccccsssssssseeeeeeeeeeeeeeeseeeeeeeeeeenees 9 Voltage Test Leads cu scccccsescuntsscssussdevessheenestensdnecounessecsunesocesspesbendunececheovessaye 9 Current PrODGS os aiaee aetan E E Gusev Ae AT E E E a hectontdeeete 10 Connections to PowerSight eeceeeesecsceeeseeeesescseeceseeeeeecaeeeateeeeeeeates 12 Introduction to Power Delivery Configurations sssssssseseesesesseseseeee 14 Connecting to Single phase Power s sssssseesssesessesesresesrssssesssseseeresesrsse 16 Connecting to 120 V Outlet Adapter Box eceecccsseseseeeeseeeteesesesenees 17 Connecting to Multiple Single phase LOaS eeeeeceseeeeseeeeseseees 18 Connecting to Split Phase Two Phase Power s ss sssssessessssesesresese 19 Connecting to Three Phase Four Wire Wye POWE c eeee 20 Connecting to Three Phase Three Wire Delta Power 06 21 Connecting to Three Phase Four Wire Delta Power cccccceeees 22 Connecting to Three Phase Grounded Delta Power ccceceeees 22 Connections Using 2 Curr
45. attached PowerSight Time and Capacity Measurements in PSM The Data Setup window allows you to review and change many of the time and capacity measurements The time capacity of the consumption log the record capacity of all the logs and the 82 programmed start and stop time of monitoring if one exists can be reviewed and changed The measurements of time and capacity presented on the PS2500 can also be displayed in PSM by using the remote control feature Harmonic Measurements French mathematician Jean Baptiste Fourier determined 150 years ago that any periodic waveform can be mathematically defined to be the sum of a fundamental frequency equal to the periodic rate and additional frequencies that are multiples of the fundamental frequency Thus any repeating waveform that does not appear to be a pure sine wave can be replicated by adding a collection of sine waves of varying frequencies phases and peak amplitudes Since the frequencies are exact multiples harmonics of the fundamental the waveform could be considered to be distorted from a pure sine wave by the addition of harmonic frequencies The total harmonic distortion provides an accurate measure of how distorted from a pure sine wave a waveform is There are several related measures of interest Fundamental frequency Harmonic frequency Harmonic number Harmonic amplitude Harmonic phase angle THD total harmonic distortion K factor The fundamental fre
46. box will open in which you can set the time and date at which to start logging Once the custom setup is sent to PowerSight that date and time will be stored in the unit until a new date and time are written over it This is a great way to synchronize several PowerSights to start logging at the same time so there data logs can be synchronized It is also a great way to log for a specific number if minutes or hours or days or whatever when combined with the mode of stopping data logging at a specific date and time Finally it is the best way to insure that logging begins and continues in the same timeframe that the utility calculates demand period The final option is Don t Use If this is selected logging can only be started by the user manually directly it to start Stopping Data Logging The default mode of operation is for PowerSight to not stop logging until it is turned off There are several other modes of operation that can be selected in the Data Setup screen Stop when full instructs PowerSight to stop logging when the log fills up This is helpful if you don t want to lose the data from the beginning of the data logging session and may not be back to get the data before the log fills up Another mode is to select Stop at time If this is selected then a box opens that you can Log Stop Mode Don t stop enter a date and time for Don t stop the logging to end This is helpful if you want logging
47. capacity of 14 833 records in the log which combined with the logging period of 3 minutes will take 30 9 days to fill up To make quick changes to the measurement types you can use any of the many speed editing boxes that allow setting or clearing all in a column or in a row or of a type When done modifying the measurement types be sure to click OK and then save the new setup to file and or send it to the connected PowerSight Setting Measurement Modes The measurement modes and how to check and modify them have already been covered earlier in the manual Refer to the Measurement Modes chapter Saving and Retrieving Data Setups to File or PowerSight When you create a customized data setup it is usually a good idea to save the setup to a file To do this click on Save to File and give it a filename A Save Log Setup Get Log Setup good practice is to give Save to PowerSight From PowerSight the setup a name that will Save to File Erom File be displayed The This Setup s name is This Setup is example says CUSTOM cee CUSTOM but a typical one might be Motors The name can only be eight characters long Although this name that is embedded into the setup is limited to 8 characters the filename that the setup is stored under can be of any length that is acceptable to Windows To load the setup into PowerSight click on Save to PowerSight 117 To retrieve a setup file click o
48. ces in the areas of when or how to start logging when or how to stop logging how often to create records what data measurement types to include in the log what voltage measurement mode to operate in what frequency measurement mode to operate in what power measurement mode to operate in how to define the inputs Each of these general areas will be covered in the following sections The collection of choices that are made on how to operate is called a setup file You can use the default setup file supplied by Summit Technology or you can create store and retrieve your own Starting Data Logging There are several methods to initiate data logging One method if PowerSight is connected to a PC is to click on the Data Setup button on the main menu of PSM and then clicking on the Start Logging button No matter what method is used to start logging you can always know if PowerSight is logging If logging is in progress there will be flashing asterisks appearing on both ends of the bottom line of the PowerSight display The other methods of starting logging can be set within the Data Setup screen by clicking on Log Start Mode Don t use the Log Start Mode t dropdown box First there pore is the choice of Start now 113 If this is selected when the custom setup is sent to the attached PowerSight it will immediately start logging If you click on Start at time a
49. ch logging period are logged This is the act of recording summarizing information once every logging period With PowerSight the logging period is set by the user whereas the measurement updating period is always once per second This insures that you don t miss valuable information related to the actual power used and the maximums and minimums present 104 After you direct PowerSight to stop monitoring all the information remains available to you in the data log that is in PowerSight The contents of the data log are not displayed on PowerSight s display To obtain the information it must be uploaded from PowerSight to your computer using the PSM software The data is recorded into a file in a plain text format that may be easily imported into spreadsheets databases and word processors In addition PSM has extensive graphing and printing capabilities Only one data log exists within PowerSight at any given time Thus while logging of consumption is proceeding the data log is growing by one record after each log interval When logging is stopped the data log no longer grows but it is still available The data is preserved even if the unit is turned on and off repeatedly While monitoring is in progress asterisks appear on both ends of the bottom line of the display They flash on and off each second to assure you that monitoring is in progress When monitoring stops you are assured that monitoring has ended by Wee
50. cord to be written over the oldest record of the log In this way you could leave a unit logging unattended for months and always have the most recent data available for analysis To have logging stop when the log is full or to set a programmed start or stop time refer to the Custom Consumption Data Logging chapter Starting and Stopping Consumption Logging You can start logging or monitoring power directly by pressing the Next button or indirectly via PSM as described in the Custom Consumption Data Logging chapter To start logging using the Next button press it several times until the display says Hold Down Button To Start Logging Press 107 the Next button and hold it down for 2 seconds Logging will start You will know it has started because Hold Down Button Monitoring Has Begun will be displayed and because asterisks will flash on and off at both ends of the second line of the display while it is monitoring Logging can also be started ata preprogrammed time as described in the Custom Consumption Data Logging chapter To Start Logging To stop monitoring you can either turn the meter off or press the Next button repeatedly until the display says Hold Hold Down Button Down Button To Stop To Stop Logging Logging Press the Next button and hold it down for 2 seconds Logging will stop You will know it has stopped because Monitoring Has Ended will be displayed and the asterisks
51. ctions Using PowerSight SureStart 42 3 Importance of Verifying Connections and Wiring c eeeeeeeeees 42 Identifying the Power SySt M cccccssscesseseescseeeescseeseesceeseeeceeseeeees 44 Eror SUMMARY eoira aa A eee te eles es 45 Identifying Errors ha e raer irae erea fetes 45 Checking out Connections using PSM sssseeeeeteeeeeeees 48 Checking Voltage Levels Using PSM 0 00 ceeceeeccsseseseeseseeeeesesesenees 48 Check Voltage Phase Sequence Using PSM cccccscseseseeeeneeees 49 Checking Current Levels Using PSM cccccssseceseeseseeceseeeeeseseseeees 50 Checking Phase Sequence Using PSM cceseseeseeseeseseteeeerens 51 Checking Phase Lag Angle Using PSM cccececcseeseeeeseeeteeseseseeees 51 The Next Button si ccce 2 sceicctedccteces sete ctetecseseeetecteteckascteateenenee 53 OVeWVIEW sich cite danni eee Mi tnd oe el 53 Voltage SUMIMALY eeeeeseseesescsseceseseeecscseseeaesesececseseeatseeececaeeseateeeeteeneeees 53 Current SUMMALY ccccceeseseescsescesssesesecsenevseaeseseceesesssaesessceeaesesaeeeseenesees 54 True Power KW SUMMALPY eeceecesescsceseseseeeescseseceseeeeeceeneeeeaeeeeeeseates 54 Apparent Power KVA SUMM ALY uu cecccceesecscssessescseeseeccseeseeesececseeaeees 55 True Power Factor SUMMALY cccccccesecscssesecccseeseeccseeseeecseeseeeseeecseeseees 55 LOGGING SUMMARY cernar aa deseo ial sa
52. d hence physical connection problems are minimized reliability the Bluetooth communications protocol provides for robust error free communications flexibility communicate with the meter from up to 30 feet away The disadvantages are the Bluetooth connection must first be made at the operating system level before the PSM application can make the application to meter connection your PC may not have Bluetooth capabilities in which case you need to add a USB Bluetooth adapter turning your meter off and on may require re establishing the Bluetooth connection at the PC operating system level the present implementation of Bluetooth communications in Windows is less straightforward than USB or RS232 communications The next sections assume that a Bluetooth adapter is already installed in your PC Summit Technology sells an adapter order BTA but most Bluetooth USB adapters will work Follow the instructions that come with the adapter to install the software If you have our BTA adapter and run the Windows Vista operating system don t install the Bluetooth software Vista has drivers for it and automatically configures for it 35 Step 1 Connecting to the Meter at the Operating System Level The PowerSight meter and your PC must be turned on before the first step can occur As soon as your meter is on the Bluetooth adapter in the meter is energized and can respond to broadcasts from your PC s Bluetooth adapter
53. d sharing the same neutral Appliances such as ovens that require 240V will span across both hot wires When evaluating the power for a load spanning the two phases remove the Vn voltage lead since it may affect the power factor readings of each phase Fig 5 Recommended Two Phase Connections In this configuration a reading of V1N is of hot neutral and Van is hot2 neutral IN does not need to be connected and Vn should not be connected when the load spans the two phases The power associated with one hot is measured as phase 1 the power of the other hot is measured as phase 2 In phase neutral measurement mode the voltage readings will be from hot to neutral If you 19 change the measurement mode to phase phase V12 will be the hot to hot voltage that serves the high power appliance Connecting to Three Phase Four Wire Wye Power Figure 6 presents the recommended connections to Neutral a three phase system with voltages referenced to neutral a phase neutral or three phase four wire wye configuration Phase 3 PowerSight Be sure to follow the safety warnings of the previous sections before making the Fig 6 Recommended Three Phase Wye connections Connections Although the current of each phase is carried by neutral neutral current is generally relatively small since the currents of the 3 phases largely cancel each other in the neutral leg In a perfectly balanced system the curren
54. d the demand of that period Typically the utility will look for the demand period with the greatest demand over a period of time such as a month and call this the peak demand period The demand of that period is the peak demand The utility may then present a surcharge on the user s bill based on the peak demand For this reason power users have an incentive to determine Peak demand Peak demand period 77 Demand Period Measurements in PowerSight The PS2500 does not do demand period measurements There are other PowerSight models that do demand period measurements Demand Period Measurements in PSM There are two methods for obtaining Demand period measurements in PSM The first is to monitor using 15 minute logging intervals and making sure that total power is being logged in the consumption log When logging is completed graph the consumption log and choose to present total power Observe at what point the average total power is at its peak This point is the peak demand period Put your cursor over it and observe the timestamp of the beginning of the peak demand period at the upper right of the graph To find the peak demand observe the average total power in watts at the point of the peak demand period The more direct method of determining the peak demand and the peak demand period is to run the Report Generator program see Generating a Report and select Peak Demand in the list of variables t
55. ds the power for that phase will appear to be negative In Always Positive Power measurement 91 mode PowerSight senses this and automatically turns the current probe backwards in software so that all phases measure positive power This automatic correction is provided to assist our customers allowing them to concentrate on readings rather than connections under most circumstances Accuracy may be slightly better when the probe is oriented correctly but for most measurements this added accuracy is of no significance with PowerSight If current and power readings of the highest accuracy are necessary use the Checkout Connections feature that is discussed earlier in this manual or view the waveforms in order to ensure that current probes are connected correctly If you need to monitor equipment that alternately consumes and generates power you need to select the Negative Power Allowed measurement mode In this mode positive and negative power readings for each phase are accepted and are combined to find the net power usage Depending on the result positive or negative power energy and cost results may be displayed When negative power measurements are allowed it is necessary to have all current probes connected properly Use the Checkout Connections feature or view all the waveforms before taking measurements Failure to do so will typically result in power readings 1 3 of the correct value The 2 Current Probe mode also known as 2 wa
56. e been captured ee 22 Cancel at the main menu T 74 Ext click on Receive Waveform then Receive and View A waveset will be transferred from PowerSight to PSM and then a dialogue box opens asking you to choose what signals to view Make your primary choice Voltage and your secondary choice Set All Next click on View Now that you are viewing the voltage waveforms there are several questions that Powersight Manager enpotan wim Bile Edit View Harmonics Help need to be answered aj em ouma eea Eal First of all is the voltage measurement mode correct If the measurement mode is phase neutral all measurement labels at the top will be ViN V2N and V3n The first letter after the V is the phase that is connected to and the n stands for 5 Hp Motor 208 pp 60Hz Voltage volts neutral If no neutral is connected to PowerSight this measurement is in reference to the neutral point between all the phases that are connected If the measurement mode is phase phase as shown in the example the labels will be V12 V23 and V31 V12is the voltage potential between phases 1 and 2 Changing the measurement mode has a large effect on the size of the voltage readings For instance in a three phase 120 volt phase neutral wye system the voltage measurements in phase phase mode will be 208 volts 120x J3 Similarly a three phase 480 volt phase phase delta syst
57. e and Voltages current of a 0 waveform set To view the imbalance measurement ee open a oll 470A 7 o2 452A 129 waveform set ite in PSM and then click on the phasor Vpp I Phase Lag diagram icon eyin 7 The imbalance an s measurements appear to the left of the phasor diagram Power Measurements There are three basic interrelated measurements of power True power Apparent power 66 Reactive power Apparent power is defined as the sum of the products of the RMS currents and their associated RMS voltages P _ VA v Nps I Lins Vay xI J J Vas xI 3 ms app In other words if you measure the RMS voltage measured in volts and the RMS current measured in amps and multiply them together you get the apparent power measured in VA True power is more complicated It is defined as the average of the sum of the products of the instantaneous currents and their associated instantaneous voltages over one or more cycles Pp Waits DW xt Doan Xi Dia XH true N N N True power equals apparent power when there is no phase lag in the load and no harmonics are present otherwise it is less than the apparent power This is why an ammeter cannot be used to accurately measure true power in most industrial circuits Reactive power is the square root of the difference between the squares of the apparent power and the true power P VAR P P var app 4 true When the fund
58. e displayed They will be updated once each second 71 Displacement P F and Phase Measurements in PowerSight Displacement power factor readings and phase lag are not measured by the PS2500 There are other PowerSight models that do displacement power factor and phase lag angle measurements Power Factor and Phase Measurements in PSM The consumption data log can record maximum minimum and average true power factor for each phase and for total power for each logging period The summary values at the top of the screen are the maximum minimum and average of all the values shown on the screen When viewing consumption waveforms the average true power factor of the waveform is shown at the top right If a harmonic analysis is displayed the true power factor is also listed If trending data is being recorded and PowerSight is operating in phase phase voltage measurement mode the average total true power factor for each second will be displayed and recorded each second Phase lag angle is most easily determined by viewing a waveform and then clicking on the phasor diagram icon The phase lags of each phase will be listed on the right as well as the phase angle between the phase 1 voltage and all other signals The measurements of true power factor can also be displayed in PSM by using the remote control feature In addition our Report Generator software will present maximum minimum and average true power factor of each pha
59. e measurement If it is an average the summary is the average of all the values shown If it is a minimum it is the minimum of all the values shown If it is amaximum it is the maximum of all the values shown If it is an energy KWH it is the final point shown the energy consumed during the time displayed b For a consumption waveform the summary for a specific signal is the RMS value and crest factor of the signal The power and power factor of the phase or phases is also shown at the right 8 Information specific to the position of the cursor is displayed For instance when the cursor is positioned over a consumption log the data values at that time are presented within parentheses under the signal names in the heading and the time and date stamp at that point and the record number are presented at the upper right within parentheses Information within parentheses will not be printed out AN YY A NA NY Zooming and Panning Perhaps the most powerful tool of graphical analysis is zooming This feature allows you to expand an area of interest of a graph or waveform so that it fills the screen It also allows you to trim off 135 areas that you don t want displayed for instance you may only want one week of a 30 day log displayed for printing There are multiple ways to zoom in on an area of interest The easiest is to position your cursor at the upper left corner of the area you wish to expand and then l
60. e meter has not been paired you will be asked to enter a PIN code Enter 0000 four zeros and click on Initiate Pairing Through pairing your computer sets up a communication channel with the meter If pairing is successful you may be asked what service you wish to access on the meter If so you will click the box for SPP Slave A screen will open identifying a COM Port that is being assigned to communications with the meter such as 36 COM7 Remember this port identifier you will need it for the next step connecting to your PSM software Note Whenever you close PSM or turn your PowerSight meter off you will break the connection between your meter and Windows Once your meter is turned on you will need to double click on one of the Bluetooth icons on your desktop to re connect with Windows and then attempt to re connect to the meter via PSM If you are asked to enter a PIN enter 0000 four zeros Other than this awkwardness you will find Bluetooth wireless communications to be very beneficial Step 2 Connecting to the Meter in PSM the Application Level Open your PSM software application If it connects properly you will see a green box appear with the words Unit Connected in it If this automatic connection failed click on the Setup Communication button and set the Serial Port for the COM port that is assigned the connection with your meter such as COM7 Click OK and the connection between t
61. e probe drops straight down and the place where the ends snap together is at a right angle with the conductor and not touching it The frequency response of flex probes is very good but phase shift increases with frequency Our eFX6000 is powered by the meter so no batteries are required 11 A You must use added caution when connecting an FX series current probe around exposed conductors and bus bars since you must pull the tube around the conductor and thus get your hands and arms closer to it than when using HA series clamp on type current probes Wise practice dictates that you use high insulation protection on hands and forearms in these circumstances or deactivate the circuit The DC600 probe is used for AC current measurements from 5 to 400 amps and DC measurements from 5 to 600 amps It offers accuracy of 2 1 amp from 5 400 amps and 3 accuracy for DC from 400 600 amps This probe relies on Hall effect technology and its output varies slightly over time Therefore a zero level adjustment is provided on the probe s handle for initial zeroing before each measurement session The probe can clamp around one cable up to 1 18 inch diameter or two cables of up to 0 95 diameter Unlike other manufacturers DC probes ours do not require batteries for them to run New probes and adapters are introduced regularly so if you have a special need give us a call Please Note Always inspect the metal surfaces of clamp on probes before
62. e system the voltages are of equal magnitude and the currents of the three phases are of equal magnitude In most situations however the voltages and currents are not balanced An imbalance can be a nuisance or can actually cause damage depending on the driven load Therefore it is important to measure voltage and current imbalance There are two methods of measuring imbalance NEMA National Electronic Manufacturers Association uses an approach that measures the deviation of each measurement from the average For instance here is the formula for V12 imbalance _ V2 Vaverage _ 2V2 V3 V 2 imbalance V E V Vy V 12 23 31 average V 65 Vo Ven V where V verage a Basically this approach finds the average of the readings of the three phases and then finds how far away each of the phases is from this average The phase with the largest deviation from the average is used for the final calculation which is simply dividing this maximum deviation by the average to obtain a percentage deviation always expressed as a positive percentage The European standard IEC61000 4 30 specifies a much more complex method The results are generally quite close to the NEMA approach Imbalance Measurements in PSM PSM performs PowerSight Manager wfm04_12_25_07_279 wfm imbalance Fe cate Gore ores Lc calculations on 8 alee a 2 2 A m Gal e both the 5 HP Motor Reversed Phasor Diagram voltag
63. e total power Another motivation occurs in situations where one of the phases cannot be measured due to accessibility This approach is also called the 2 wattmeter approach because it mimics how two single phase wattmeters can be used to measure total three phase power The equation that it depends on is W otal VW xI SG xJ This equation is true regardless of the harmonic content of the voltages and currents present A few words of caution are required however First a volt ohmmeter cannot be used for this calculation That is because the equation depends on the instantaneous products of voltage and current That is normally quite different from the product of the RMS voltage and RMS current Second a single phase wattmeter should not be used for this calculation since conditions normally change second by second and hence adding the watts of two different setups will at best give a feel for the correct true power Lastly it is more important to make the connections correctly in this approach since an error will not be obvious and there is no way of recovering to an educated guess of the correct power reading Refer to the Phase Neutral vs Phase Phase vs 2 Current Mode section for how to operate the unit in 2 current probe mode Connecting to 3 CT 3 PT Metering Circuit Sometimes it is helpful to monitor a load indirectly by connecting PowerSight to a metering circuit in front of the load A few circumstance
64. easurement type that can be Teo included in the report ovang has its own checkbox They are organized in a matrix that allows ease of locating a specific signal and ease in enabling or disabling entire columns or phases of them Any checkbox with a check in it will appear in the report qaqaqa g THO Qmerd tL maaa a a LL aa L L 121 The Log Details screen also has a checkbox to direct graphs to be included in the report If this box is checked each variable will have a graph only included The data of the graph will only be during the time period specified in the Datalog Information screen A word of caution here if your computer is under powered or has limited extended memory and you select all of the variable types and checkmark either of the graphics boxes the report program may slow down or even fail The solution would be to either select less variables or remove the checkmark from the graphics box The Log Details screen also has a box for entering a KWH cost rate This will be used in the report for all cost estimates When you are satisfied with the selections click on Next to obtain the report Viewing a Report The report appears on screen and is in a rich text format You can edit and format the report within any word processing application At the top is the title that you entered followed by information about the source of the data filename start time and end time The example
65. eccccessseeeseeeeeeeeeeeeneeeeneeees 138 Troubleshooting amp Frequently Asked Questions FAQ 140 Overview of the Remote Control Keypad ssssssseeeeeeeees 144 Compatibility Guide secccceesssseseeeeeeeeeeeeseeseneeeeeeeeeeeees 146 Specifications siiis Sse ticles ias auda a iste hae 148 Introducing PowerSight Congratulations on your decision to buy a PowerSight 2500 You have just purchased one of the smallest and yet most powerful instruments for measuring and analyzing electric power that exists PowerSight is three instruments in one a power logger a demand analyzer a harmonics analyzer with HAO option The philosophy of the product is to give you an instrument that answers all your basic questions about electric power in a truly convenient size at an attractive price works effortlessly with all power systems is nearly foolproof in setup and in getting results makes reporting results quick and powerful The combination of the PS2500 our PowerSight Manager PSM software and our Report Writer software is truly remarkable If you are looking for a simple yet powerful tool that can be easily and reliably installed and operated one that provides for comprehensive data analysis you ve found your tool of first choice Whether your interest is in measuring True power Harmonics Automated report writing Viewing actual waveforms Wiring and system analysis PowerSight put
66. ees 99 Monitoring Power COnSumption cccccccessesesseeeeeeeeeeeneees 104 aisel lE ii a e E E E ss ccuavas E E E sed codvedGobendh E E E tease 104 Basic Consumption Data Logging s ssessesssessssssesseresesrssssesseseseeresesrs 105 Starting and Stopping Consumption Logging s s sssssseesssessssessssesesreees 107 Receiving Consumption Data Log from PowerSight c 108 Viewing Consumption LOGS e ceeseseeceseseeseceseeeeseeeeeceseeeeeeseeceeeeneeees 109 Deleting Log Data in the Meter eeeecsseseescneeseeecneeseeeeeeereneeaeees 111 Custom Consumption Data LOQQIING cccccsssesesseeeeeeeees 113 UILFOGUGTION t a cose r E cise obssas E A AOR 113 Starting Data Logging ssssessesesesessssesesrestsrsssseserresesrsssseserresesrssssesesreses 113 Stopping Data LOGGING eeeeecceseceseeseseseeeeeseseeseecseeeseeeeeeecaeeeeateeeeess 114 Setting the Consumption Logging Period ceeeesseeeeeteeeeeeeeeees 115 5 Setting Measurement TyPes eecessecececcsseeeseeseseecseeeeseeeeseecseeesateeeeees 115 Setting Measurement MOdeS ecccceceseceseeeseeseseecseeeeseseeseecseeeeateeseees 117 Saving and Retrieving Data Setups to File or PowerSight 117 Loading Data Setups from the Memory Card SD Card e 118 Saving Data Setups to the Memory Card SD Card eee eeeee 119 Restoring the Default Setup eceeeseeeesesceseseseeeeeceeseestseeeeeeeeeeeete
67. eft click and hold down and drag the cursor to the lower right As you drag the cursor a box will appear on the screen and it will grow as you move the curson down and to the right When you release the mouse s left button the area that was within the screen will expand to fill the screen Other ways to zoom in are to click on the zoom in icon a magnifier with a on it or to click on View and then Zoom In or to type on the keyboard and then do the same click hold and drag operation that was previously described To zoom out you can click on the ZoomOut icon the magnifier with a on it or you can right click and click on Zoom Out or you can click on View and then Zoom Out The examples below are of a log of true power of an air conditioning unit and of a zoomed in portion of the same log The n Pamti at Varaan ISAMA EEDSE za E aj Ae Zoom In and Zoom Out icons are circled The example on the left does a good job of communicating the overall operation of the air handling unit that was being monitored There is a circled area of special interest in this graph where the power has several repetitive peaks The example on the right does a good job of focusing in on this area of particular interest The example on the left above showing the full log has several features of interest highlighted Notice that the cursor is positioned near the center of the d
68. egrees before and after phase 1 and the phase lag of each current relative to its associated voltage will be similar The data graphs on the left of the phasor display show the actual degrees of all voltages and currents in relation to the phase 1 voltage and show the phase angle between the voltage and current of each phase Another convenient analysis feature are the signal selection icons Clicking on these icons allow you to simply cycle through the individual voltages currents or phases The order of presentation as you Click on the icon is phase 1 phase 2 phase 3 and then phases 1 2 amp 3 together PowerSight Manager 5SHpMotor wfm File Edit Yiew Harmonics Help a e 2lae F als E A 5 Hp Motor 208 pp 60Hz o 12 o 23 0 31 RMS Value 206 5 206 4 205 7 Crest Factor 1 5 1 5 1 5 500 0 400 0 300 0 200 0 100 0 Voltage volts Sometimes current probes are attached backwards and the resulting waveforms are 180 degrees phase shifted There is a convenient way of correcting this error Any waveform can be inverted by clicking on View on the command bar then Invert Signals then by clicking on the signals you wish to invert then 102 Invert Signal s If you x save the waveform file the change becomes Invert Signal s permanent 103 Monitoring Power Consumption Introduction When PowerSight is first turned on it operates like a repor
69. el type plug into the 12 VDC input jack on the right side of PowerSight If charging voltage is available an LED indicating light will immediately shine through the hole located to the right of the input power jack Allow 12 hours to fully charge the unit though 8 hours is adequate for most usage If you wish to operate PowerSight without being tethered to a power outlet the Line to DC converter accessory order LDC2 or LDC4 offers the ability to power a PS2500 directly off the line voltage being monitored It works with 50 Hz and 60 Hz power operating off 100 to 480 Vrms input single phase or three phase All this versatility is obtained without setting switches or changing connections The LDC is especially convenient when monitoring in areas where 120 V outlets are not readily available The LDC4 is a more powerful version of the LDC2 and can power any of our meters except the PS3000 If you need to operate the LDC4 off of 600V phase to phase service recommended procedure is to connect one input to a hot phase and the other input to neutral if present 33 The internal batteries are automatically charged when the wall mount supply is connected to the unit or when PowerSight is connected to the LDC accessory The internal batteries are not to be replaced by the user Only batteries provided by Summit Technology are to be used in PowerSight Turning PowerSight On Simply press the green on off button at the lower right of
70. em will display 277 volts 480 43 if it is measured in phase neutral mode How to change the voltage measurement mode is described in the Phase Neutral vs Phase Phase vs 2 Current Mode section Next are the sizes of all three phases about the same except when connected to a 4 wire delta while in phase neutral measurement mode Are they the expected size The RMS value of each waveform is listed in the heading of the graph such as V12 in the example with 469 2 beneath it indicating that V12 469 2 volts Check Voltage Phase Sequence Using PSM While still 2 Sanam rare A a ej aj eim Daoa Rea B Ea e viewing all EAEE T om voltage soar oe Phs 1 Phs2 Phs3 waveforms of a three phase system notice in what order they reach their peak value Normally the order should be 1 2 3 In other words the highest level of the Vin or V12 waveform will be followed next by the highest level of the Van or V23 waveform which will be followed by the highest level of the V3n or V31 waveform see the example 1 2 3 Sequence 49 SS eee Bie Dh Yew timoni teb E S e a w Daler Re ela m ES e An order of 2 3 1 or 3 1 2 is the same as an 1 2 3 e SS Phs 1 Phs2 Phs3 sequence the reference point just starts ata different place for instance 2 3 i 1 is just a portion s Revered o w om Tonal tor 8 s090 1 2 3 Sequence of the continuing ml sequence of 1
71. ent Approach ceeceeeeeecesseseeeseseneeeeseeeeeees 23 Connecting to 3 CT 3 PT Metering Circuit 0 0 0 0 eeeseseeeeeteeeerees 24 Connecting to 2 CT 2 PT Metering Circuit 00 0 eceeeeeseeeeeteeeeeees 27 Connecting to Open Delta 8CT 2PT Metering Circuit 27 Connecting to Line To DC LDC Converter Accessory 0ce 28 Measuring Multiple Parallel Conductors ce ccceeesecseeseeseececteeseeeees 30 Measuring Currents Below the Range of the Current Probe 32 Turning PowerSight ON eeeeeteesseeeeeeeeeeeeeeeeeneeeeneeeeeeeeees 33 CONNECTING tO POWED 0 ceseeseesesescsceseseseeeceseecsaesceececseneasaceeeeseseeetaeeeeeees 33 Turning PowerSight ON cccecccecesseseseseesesesesceseseeeesceeseeeeseeeeeeeeaeeeereseates 34 Turning PowerSight Off cececessssesesseseseseeseseseeeesceeneeeeseeeeeeeeseeeeeeeeates 34 Communicating with PowerSight ccccccsssssssseeeeeeeeeneees 35 IMMFOGUCTION e e a ceuene eea oes E a ats gs 35 Step 1 Connecting to the Meter at the Operating System Level 36 Step 2 Connecting to the Meter in PSM the Application Level 37 Using Removable Memory Cards ccccccssseeseeeeeeeteeeeneeees 39 IntrOductiOn 4 3 34sec Soha Aan A aie ita aa 39 Operation and Limitations 00 eee esesscsseseeecseeseeecseeseescseeecsesseeeeseeaes 39 Using the Memory Card Data with PSM ceeeceeseeseeeesesenseeeeeeerens 40 Verifying Conne
72. ent in phase 2 current in phase 3 current in neutral true power in phase 1 true power in phase 2 106 true power in phase 3 VA power in phase 1 VA power in phase 2 VA power in phase 3 true power factor of phase 1 true power factor of phase 2 true power factor of phase 3 fundamental frequency n addition the time date of each data record is recorded There are more measurement types than the default set of 52 The maximum minimum and average of total true power of total VA power and of total true power factor are not defaults but the averages are derived by PSM from the individual phases when the log is displayed The seven THD measurements three voltage phases plus three current phases plus neutral current are also not defaults To change the selected variables from the default the Data Setup feature of PSM must be used see Setting Measurement Types The log setup does not change when the unit is turned off The default setup can be recovered at any time refer to the Custom Consumption Data Logging chapter With the default setup the log will contain 4569 records Coupled with the default 3 minute log interval the default data log will hold summary data for the last 9 5 days of energy consumption 3 minutes x 4569 If 15 minute log intervals are used the data log will hold the summary data for the last 47 3 days of logging If logging continues long enough to fill the data log the default is for each new re
73. eter will come from a wall charger or from an LDC line to DC converter If you have an LDC accessory attach its leads as shown in the Connecting to Line To DC LDC Converter Accessory section If you are going to monitor just a few hours and the meter s internal battery is fully charged you can skip this step Turn PowerSight on It will automatically analyze the connections and advise you of any problems it sees If it is in the start when power is present mode of operation it will automatically start logging after you step through any suspected errors 130 You may want to also take a snapshot of the waveforms and look at them for errors if you have a computer handy Refer to the Verifying Connections using PSM section If you intend to have PowerSight start monitoring by direct command via the keypad or via PSM this is the time to do it Otherwise it will have already started logging or it will when any programmed start time and date arrive Regardless of how PowerSight is directed to start logging when it starts it will automatically capture a simultaneous set of waveforms and stores it separate from the log for your later use This collection is saved as wavesett When you are done logging if you have a laptop handy use PSM to capture another set of waveforms giving it a unique name Combining this waveset with the one that was automatically captured when logging began gives a before and after picture of the power f
74. eveloped by Summit Technology that does a better job of identifying connection and setup problems than you can expect an expert to do To use the SureStart feature press the Verify Connections key on the top row of the keypad It does a complete analysis of the power signals and connections that are present and displays the results Alternatively you can use your PC to visually checkout if all connections are accurate To do this refer to the section on Verifying Connections using PSM 43 The SureStart feature briefly reports its findings in four groups of information These are Identify System after analyzing all the voltage and current inputs PowerSight identifies what type of system is connected Error Summary after analyzing connections the number of possible errors detected is displayed appearing for one second each 6 seconds Identify Errors If errors were detected pressing the Next key will result in each error being identified on the display Press the Next key repeatedly to advance through the list of errors Provide Error Diagnostic Information for each error message that is displayed the background measurements that indicate the error are displayed once each 6 seconds Once you have proceeded through this sequence of identifying the system and possible errors and have corrected the problems you can proceed knowing that the power wiring and PowerSight s connections to it are p
75. every second in units of watts then the KWH consumed during that secondis E W 1000 3600 The energy used over a longer time would be the sum of each of these energy measurements of each second Useful measurements and estimates of energy are 73 Real energy consumed Reactive energy consumed Estimated energy consumed per hour Estimated energy consumed per month Estimated energy consumed per year The real energy consumed is the amount of energy actually consumed during a period of time such as since monitoring started or during a specific week For instance if the sum of the KWH of each cycle totals to 5 KWH after 10 minutes of monitoring then the energy consumed during the monitoring session is 5 KWH The PS2500 calculates KWH once a second The reactive energy consumed is determined the same as KWH except VAR measurements are used instead of watts The estimated energy consumed per hour is the total energy consumed divided by the hours of monitoring For instance if 5 KWH is consumed over a 10 minute period then the estimated 60 energy consumed per hour is KWH ma 30KWH est hr The estimated energy consumed per year is the total energy consumed divided by the fraction of a year that monitoring has proceeded For instance if 5 KWH is consumed over a 10 minute period then the estimated energy consumed per year is KWH 5x oa 262 800KWH 262 8 megawatt est yr hours The estimated energy c
76. f voltage and current as they continually vary aS you see on an oscilloscope All other measurements are derived from them Even the RMS measurements of voltage and current are derived from these basic samples Logs on the other hand plot measurements that are derived from the basic sampling They generally have no relation to what is occurring at a specific instant of time So although both waveforms and logs are presented graphically they are not the same and are not treated the same in analysis If you could zoom into a data log of Vrms you might be able to zoom in further and further until you arrive at the measurement of Vrms representing 1 2 cycle of voltage However you would not eventually see a waveform of voltage Saving Consumption Waveforms PowerSight allows you to store sets of waveforms whenever you wish to These waveforms may be uploaded and displayed on your PC at any time Whenever a set of consumption waveforms is manually recorded by PowerSight all 3 voltages and all four 4 currents are recorded for 50 milliseconds This time coincident snapshot of 7 waveforms is called a waveform set Please Note When operating in one of the 400 Hz operating modes the waveforms are recorded for 7 msec to give sufficient resolution to these much faster frequencies You can capture a waveform set at anytime by using PSM if PowerSight is connected The waveform data storage space within PowerSight is separate from the space reserved
77. for other types of data Therefore it does not limit the size of your logs or write over any other type of data Whenever you store a waveform set in PowerSight it writes over the oldest waveform set that is stored in the meter 96 One of the wavesets waveset1 is a special waveset It is automatically captured by PowerSight when you initiate monitoring The benefit of doing this is you can always retrieve a look at what the waveforms were like when monitoring began darai To use PSM to capture a waveform set paota iana bats ati and have it stored in the connected PowerSight meter click on Remote Control at the main menu and then click on the Wave key of the representation i of the PowerSight keyboard on the aa i nii all screen Remana pme When PSM is connected to PowerSight you can also go capture a waveform set at any sow zi E ecm ae m given moment by clicking on CES the View Attached Signals Serial Number 41356 By veuen oever By Messner Ovevien button on the Main Menu Fimate 32F Hardware 6 30 A waveset captured this way is immediately stored in the PC and shown on the screen It does not affect waveform sets stored on the PowerSight meter that is attached Itis a convenient way of viewing the signals that are attached repeatedly Receiving Stored Consumption Waveforms Waveform sets that are Poworsoht Naa stored inside of a connected PowerSight can be
78. g from before to after A negative number represents a decrease Therefore the example shows an estimated cost savings of 4 9 which represents a project savings of 19 02 per month for this one system 20 Ton Air Handler Before Upgrade After Upgrade File 20T onAirHandler log File POT onAirHandler log Test began at 9 23 02 10 17 00 Test began at 9 24 02 1 55 00 Test ended at 9 24 02 10 15 00 Test ended at 9 25 02 1 55 00 Measurement Before Units Change Change Voltage Phase 1 Ave 266 8 volts 0 9 0 3 Voltage Phase 2 Ave 269 5 volts 0 4 Voltage Phase 3 Ave 267 0 volts k 03 Current Phase 1 Ave 15 3 i amps 0 2 0 Current Phase 2 Ave 14 2 3 amps 0 2 Current Phase 3 Ave 15 1 i amps l 1 7 Current Neutral Ave i amps 00 Current Neutral Max j amps M 00 Current Neutral Min i amps H 00 Total True Power 9 Watts 1 2 VA Total VA Power 0 9 Power Factor Phase 1 Ave A i 0 1 Power Factor Phase 2 Ave 0 04 Power Factor Phase 3 Ave i l 0 9 Energy Total Elapsed 242 992 240 129 12 48 60 48 03 ae 1481 27 1461 78 19 49 C13 Report Prepared By Ken Rose Miles Engineering 1676 140th Ave Twin Falls ID 95616 926 944 1212 sales bjwl com Following the main body of the report is the information about how to contact the preparer of the report for follow up The pages after this have the graphs for the measurement types during the study
79. gain to view the average current for phase 2 Write it down Repeat these actions in order to get the average current of each of the conductors for the same time period Find the total of the average currents of each of the conductors of the same phase Divide the total of the average currents into the average current of conductor you wish to connect to during the actual monitoring session This yields the portion of the total current that flows through the conductor that will be measured Set the input ratio of the phase being measured to the number determined in the previous step For instance if the total of the average currents was 1000 amps and the average current of the probe on the conductor you wish to use during the actual monitoring session had an average of 26 amps then enter an input ratio for that phase of 0 26 1 Perform steps 1 through 8 for each phase Now connect each probe to the chosen conductor of each phase and begin monitoring All the readings and logged values will be substantially correct 31 Measuring Currents Below the Range of the Current Probe A problem with measuring smaller currents arises when the current to be measured is below the range of the current probe In such cases the current may not be read or the reading may be inaccurate In addition any waveforms that are captured will have excessive noise on them If you are using a flexible current probe you can simply wrap it around the conduc
80. ging is set by you using the Data Setup option of the main menu of the PSM software Logging can be set to start at a specific time and date or when the unit is turned on while power is present or manually via PSM or via the Next button Logging can be stopped at a specific time and date or when the log is filled or manually Manual Stop Identifying the Meter Following display of the time summary a Summary of information identifying the meter is displayed There are Ser 02507 three important pieces of information Serial number of the unit its unique identity Firmware revision level what level of software is active within PowerSight Hardware revision level what level of hardware compatibility it is These identifiers are important in any communications with Summit Technology about your meter FW 4 17 HW 7 11 Once every six seconds an additional screen is displayed showing what Options HLS456M options are active in the unit An example of this display appears at the right This example display indicates that the Harmonics Analysis Option H data logging L serial communications S and extended memory M are active This information may be important in communications with Summit Technology Ser 02507 57 Identifying Operating Parameters Following identifying the meter a summary of operating parameters is displayed An example of such a display is shown bel
81. harmonic the fundamental is always 100 as large as itself To change to 100 magnitude or to percentage click on the little box to the right of the harmonics icons PowerSiaht Manager SHpMotor wfm To transform back from one of the harmonic presentations into a waveform presentation either click on the Waveform icon or f a ji Pe gt RMS Value 206 5 click on View then Waveform Crest Factor 1 5 You can easily display a phasor diagram of the signals by either a aD Le EE clicking on the phasor icon or ral clicking on View and then Phasor Diagram Phasor diagrams present each voltage Crest Fator ES and current as a vector on a 500 0 graph A vector combines two measurement properties into one object In this case the properties are magnitude and phase lag Normally phase 1 voltage is considered to be the phase reference PowerSight Manager wfm04_12_25_07_279 wfm File Edit Yiew Harmonics Help a e ofS ajap a elel 2 Slo el 5HP Motor Reversed Phasor Diagram Voltages oV i2 206 0 0023 206V 120 o 31 207V 120 Imbalance 0 212 Currents oll 4704 7 o2 4524 129 013 456A 115 Imbalance 2 309 Vpp I Phase Lag oVi2 11 7 0 23 12 9 0031 13 5 101 signal so its angle is 0 degrees If the phase 1 current lags it it will be slightly above it In a three phase circuit normally the other two phases will be 120 d
82. he Memory Card Data with PSM After you have installed the memory card into a memory card reader in or attached to your computer click on the Setup PowerSight Manager PowerSight Manager File Settings ven Data Tools Help Version 3 38 Apr 21 2008 Receive via Memory EFT date Setup En g z Card button of the aig Setup Unit main menu of PSM or z FA click Data then Communications Receive Data via Receive Data Soles cee Memory Card You pe Receive Via Serial HL vase 40 oe ardware 7 will be asked to select ive vi s Warranty Ends 03 10 09 For Use With PSM 3 3 Serial Comm enabled Dataloooing enabled what data you wish to use via the Browse 40 button Click on the drive number assigned by your computer to your card reader and r locate the data of interest Browse the card to find the data you want to receive Fez _twreernter The data is organized in roe the following hierarchy of folders Serial Number this folder is in the root directory of your card Its name is the serial number of the meter that the data came from If the card has only been used with one meter there will be only one of these folders If the card has been inserted into many meters there will be many of these folders Monitoring Date Time this folder is created whenever the meter starts monitoring It is located in the Serial Number folder If the meter has had many monitoring ses
83. he More button for more information Power Factor true power factor and displacement power factor combine it with the More button for more information Time present time elapsed time time capacity of log combine it with the More button for more information Yes Accept for use in answering questions or accepting entries No Reject for use in answering questions or rejecting entries Increment for incrementing letters or numbers Decrement for decrementing letters or numbers Capture Waveforms for capturing waveform sets inside the meter Admin for identifying serial number hardware software versions installed options or warranty expiration date For changing the time date greeting or 2 current power mode Measure Mode set voltage measurement mode frequency measurement mode power measurement mode Setup for checking if the unit is connected correctly setting trigger thresholds for capturing events logging interval cost of energy on current and for moving cursor to the left Input Ratios gt for setting input ratios and for moving cursor to the right On Off Turns the meter on and off 145 Compatibility Guide Although we attempt to make all products and accessories compatible there are limitations to what devices and versions can work well together The PS2500 must be used with PSM software of at least the 3 3 series Compatibility of the PS2500 with Summit Tech
84. he application and your meter should be successful Normally you will not have to change this port assignment again Now that a Bluetooth communications channel has been established by the operating system PSM can be directed to use that communications channel in order to talk with the meter Open your PSM software application If it connects properly you will see a green box appear with the words Unit Connected in it and you are done If not click on the Setup F er Communications button version 3 TF un S 2004 In the resulting dialogue Goese Pss z box click on the Serial ay RIL Cormect to Unit Port box and select the ea COM port that has been Serial Number 41356 dedicated to your meter by the operating system see the previous section Also verify that the communications rate is set for 57 6 kbps Then click on OK For instance if the Bluetooth software in your computer advised you that COMM7 was dedicated to the Bluetooth communications 37 with your meter then click on the CON7 entry and then OK PSM wili saem sees tue C automatically attempt to a a connect to your meter at ias this point If it is Help successful the communications status box with display a yellow banner with the words Attempting to Connect After a few seconds the banner should turn green with the words Unit Connected in it At this point PSM is in direct c
85. he date as 120624 to show the last two digits of the year then 2 digits for the month and 2 digits for the day You could encode the time as 112233 to show two digits for the hour two digits for the minute and two digits for the seconds Combining all this you would find the following setup file when you read the SD card on your computer F 12345 120624_112233 12062411 stp This setup file can be used again if placed in the serial number or root directories and it can be useful if there is a question about the data at the end of the monitoring session Restoring the Default Setup The default setup can be restored to PowerSight at any time The easiest method is to press the Setup key several times until the message Restore Default Setup is displayed on the meter Press the Yes key Another method is to connect the meter to PSM click on the Remote Control button at the main menu and use the Remote Control screen to virtually press the keys as described in the previous paragraph The third method is to connect the meter to PSM click on the Data Setup button at the main menu then click on the Defaults button and then click on the Save to PowerSight button in the Save Log Setup Section and then click OK and let the default setup transfer to PowerSight 119 Report Generator Software Introduction PSM comes with a Report Generator Software program The Report Generator software pr
86. he one cable you will monitor 93 carries 492 of the amps you can enter the ratio 2005 492 and all readings will be correct There are cases where you may wish to measure very small currents with a large probe In order to improve the accuracy of the readings you may wish to clamp onto several turns of the wire This essentially amplifies the signal and boosts the signal to noise ratio For instance if you were reading 1 amp with an HA1000 probe you might clamp onto 10 turns of the wire to boost the signal to 10 amps If you then entered a ratio of 1 10 the readings will be scaled correctly and be more accurate Finally in measuring high voltages if you use a high voltage probe enter the ratio of the probe for instance 100 1 and record the actual voltage being measured Using these techniques you can measure anything with PowerSight The measurement range extends from 1 milliamp to more than 4 million amps 1 volt to more than 4 000 kilovolts 1 watt to more than 40 megawatts Note When PowerSight is turned off its input ratio settings are not returned to 1 1 You must take care that they are what you wish Changing Input Ratios in PSM To determine or change the input ratios using PSM go to the Data Setup menu and click on Define input ratios Operation Setup Logging Period 3 minutes Units and names This Log Start Mode Start Manually gt leads to the Log Stop Mode Don t stop x presentati
87. hoice of what type of e evn _ Seat measurement you wish to aa ieee E view such as Voltage N Current or True Power z IAR and then make a C Energy KWH secondary choice of which Susans phase or phases to view Caner then click on View Choices of measurement types that are not available in the log will be grayed out At this point a view of the log will be displayed Generally if you chose two or more phases the averages of each of the phases will be graphed If you chose one phase to view the maximum minimum and average of the phase measurement will be graphed Of course average maximum or minimum will only be displayed if that measurement type was included in the data setup 110 PowerSight Manager 20TondirHandler log Ele Edit Yiew Help 8 ale e of Of wile ol O Il Ave 15 26 O I2 Ave 14 27 O I3 Ave 15 14 16 8 as 2 a6 7 ecord 68 16 23 00 9 23 02 20 Ton Air Conditioner Current amps 2 T 10 17 00 18 08 00 2 06 00 9 59 00 17 57 00 1 55 00 14 11 00 22 04 00 6 02 00 14 01 00 21 53 00 9723 9124 9124 9124 9423102 9723 9123 9124 924 9124 9725 To learn ways to manipulate interpret and present the data for better data analysis or improved presentation refer to the chapter on Working with Graphs and Wavefoms Deleting Log Data in the Meter The data in the data log resides in long term battery backed up memory in the meter so it
88. in PSM eeceeeeceeceeseeeteeeeseseeees 82 Harmonic Measurements cccceceeccsceseeecseeseecseecesecseeceseceeeaeseseeeaeeeeeees 83 Harmonic Measurements in PowerSight csseseeccsseceseceeseseeeeeeens 85 Harmonic Measurements in PSM Qu ececeeeeeccsseceseeseseeceeeeseseeseeeseeeeeees 85 Measurement Modes cccccccceseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeneees 87 Introducing Measurement Modes cesecsseseeeceeeeeeceeeseeeeaeercneeneerens 87 Phase Neutral vs Phase Phase vs 2 Current Mode ceeeeeeees 87 Changing the Voltage Measurement Mode in PSM cccceseeseeees 89 50 60 400Hz vs DC vs Variable Frequency ccccsceseseeeeseresseeeseseeees 89 Changing the Frequency Measurement Mode in PSM cccceee 91 Always Positive Power versus Negative Power Allowed 91 Changing the Power Measurement Mode in PSM cccccseseeereeees 92 Demo PUTS renra cvcuie cnesvonendev E cvepbecheveenvag a 93 Changing Input Ratios in PSM uo cee eeceeecsceeeseseeeeecseseeetseseeeeeeseeeeeees 94 Voltage amp Current Waveforms ccccccsseseseeeeeeeeeeeeeeeeneeeeeeeeees 96 Introduction annn NE A EEN aani 96 Saving Consumption Waveforms ceccccccscecesesesescseeseseeeeesesenseseseeeeeees 96 Receiving Stored Consumption Waveforms cceeecesseeeseeneeeeseees 97 Viewing Consumption Waveforms eececeecesecsseceseeseseeeseeeeseeeeeesenee
89. in phase 1 THD of current in phase 2 THD of current in phase 3 THD of current in neutral To inspect or change the measurement types look to the Storage section of e the Data Setup menu and click on the m Detail button below the Log of C petai X Consumption line m Monitoring Activities Selecting which measurement types to add or remove from the log setup is as simple as clicking on the box next to the measurement type In the illustration shown you can see that the average Log Details x Log Capacity Extended Time 30 902 days Records 14833 Cancel Select Measurement Set All Clear All Measurements Measurements Total or Neutral Phase 1 Phase 2 Phase 3 Set Clear Set All Clear All ve Max Min All All Ave Max Min All All ve Max Min All All InRow Ink VOL v gt Voltage Current True Power VA Power Power Factor THD Voltage THD Current Frequency Time Date Set All Clear All 11474945 m0000 173754 0010 a000 pmm n E E F E eee gt 3 d E 4 E power factor of phase 3 is selected because there is a checkmark in the box that is highlighted in its row and column position As measurement types are added or removed the capacity of the log is affected If fewer variables are saved then each log record is smaller and thus more records can be stored in the log which means that it will take that much longer to fill the log In the example shown there is a
90. is not connected around the cable properly or that it is not fully seated into its jack within PowerSight Probe backwards The current probe that is identified is probably backwards Just turn it around and clamp it on the conductor Probe switched The identified probes seem to be switched Simply trade their connections Signals attached to wrong jack The identified signals seem to be connected to the wrong inputs Connect the probes to the correct signals Signals are imbalanced It appears that the magnitude of one phase is improperly large or small compared to the others Check that the connections are correct and that the system type was identified correctly Two inputs are the same It appears that the identified probes are connected to the same signal Check the connections and that the system is correct 46 Two inputs have the same phase angle The identified probes are of the same phase but have different magnitudes Check that the system is correct Non standard phase angle The phase angle between the identified phases is incorrect for the identified system Check the system Incorrect phase lag The phase lag of the identified phase is not correct The probe may be backwards or the voltage or current is connected to the wrong phase Wrong phase sequence It is assumed that a sequence of 1 2 3 is correct and 3 2 1 is backwards But 3 2 1 may be correct for your system for instance to have a motor run back
91. is not lost when the meter is turned off or even if the rechargeable ni cad battery runs down If an SD card is inserted the data log is also automatically transferred to the SD card If logging continues long enough to fill up the internal memory of the meter it may be written over unless logging is set to stop when full However if an SD card is inserted during logging data will continue to be appended to the file on the SD card as the data in the meter is written over This means that the most recent data is always available in the meter and if an SD card was inserted during logging all the data is available on the SD card When a new monitoring session is initiated you have the option of having the new session data appended to the old log or to replace 111 the old log If you choose to replace the old log that data inside the meter is lost forever However if an SD card was inserted prior to starting the new session the old log is still available on the SD card There may be times that you wish to erase all data in the meter This can be accomplished by pressing the Setup key repeatedly until the option Clear Internal Memory is presented If you press Yes all data is erased in the meter 112 Custom Consumption Data Logging Introduction PowerSight has many optional ways of operating that allow you to accomplish almost any type of power logging task you may wish to do It does this by allowing you to make choi
92. is turned on Make sure you use the correct rated power supply for the PowerSight that you are using 140 6 How long will the battery last A fully charged PS2500 will run 8 10 hours The PS2500 is fully charged in about 12 hours 8 hours is adequate The battery should not need replacement for at least 2 years Only authorized service personnel can open the meter or replace the battery 7 Why does my voltage current reading seem to be off This may be caused by an input ratio left inside the meter from a previous data setup Change the input ratio to 1 1 for all input signals and try again see the sections on Changing Input Ratios in PowerSight and in PSM You should also check your frequency mode and make sure that all metal contacts of clamp on current probes are clean and securely fastened 8 How long will it take for my memory to fill up during data logging This depends on your logging period the amount of data being stored and the amount of memory available As you change these values using our PowerSight Manager PSM software it will automatically display how log it will take to fill the log To see this just click on the Data Setup button at the main menu of PSM The Monitoring Activities section is where you can choose what data types and variable types you want PowerSight to record into memory You can also press the Time button 3 times to see the time to fill log displayed on the screen of PowerSigh
93. isplay The data associated with that point appears in the heading in parentheses Specifically the cursor is positioned on Record 224 of the log 136 The timestamp of that point is 6 41 00 on 9 24 04 The value of the average phase 3 power for that record is 3450 watts whereas the average of all the average phase 3 power points that are displayed is 3511 6 watts The example on the right above showing the zoomed in portion of the sample log has the cursor positioned above a special point of interest a point where one of the peaks in the power occurs Looking at the circled information you can quickly identify that the data at that point is contained in record 90 which started at 18 24 00 on 9 23 04 and the value of the average Phase 3 power at that point is 5211 watts whereas the overall average of the average phase 3 power points that are displayed is 4030 1 watts Notice that the oveall measurement has changed from 3511 6 to 4030 1 because it only refers to the data that is shown When you print what is displayed the cursor and all values within parentheses wil not appear on the printout It is important to note that when a measurement type that is graphed is an average such as power Phase 3 Avg the summary value at the top is the average of all the averages displayed When it is a maximum such as V12 max the summary value at the top is the maximum of all the maximums of the data appearing on the sc
94. itude All told you can expect to measure current to a nominal 3 accuracy and power and cost to a nominal 6 accuracy using the HA5 probe The HA100 probe is the same compact size as the HA5 The HA100 measures from 0 1 to 100 amps at 2 accuracy Itis a good choice over the HA1000 if you wish to lock PowerSight its leads and current probes inside a power panel that you are monitoring It is also a good choice when small size is important while measuring currents above 5 amps The HA100 is a popular choice for a second set of probes For very large currents and large bus bars we offer the eFX6000 The eFX6000 is a flex type probe It consists of a flexible tube about 0 4 inch in diameter and 24 inches long a 36 inch version is also available The ends of this tube snap together around a conductor to sense the current Flex probes are very handy when space is tight when multiple cables must be clamped around or when a bus bar is present They are also lighter than clamp on probes The flexible tube creates a circle with an inside diameter of 7 inches This circle can be deformed into various shapes to accomplish your measurement goals The basic accuracy of the flex probe is good measuring from 1 to 6000 amps across two ranges within 1 accuracy However readings can vary as much as 2 depending on the position of the flex probe while connected Position the flexible portion of the probe around the conductor so that the cable from th
95. ks should be the same distance from each other similar to as shown in the Checking Voltage Sequence Using PSM section This even spacing must continue across the screen In a three phase system there will be a constant 120 degrees apart 5 5 msec for 60 Hz 6 3 msec for 50 Hz If one or two of the current probes is backwards the peaks will not be evenly spaced If that is the case determine which probe can be turned around to get the spacing correct After turning it around and verifying that the spacing is now correct determine in what order the currents reach their peaks This sequence must be in the same order as was seen for the voltages If they are not swap two of the probes This will correct the phase sequence Verify once again that the spacing between them is still correct If not repeat the instructions of this section Checking Phase Lag Angle Using PSM When viewing the voltage and current waveform of a given phase you will notice a timing relationship between the two waveforms refer examples below The point at which the current reaches its peak may lead or lag the peak of the voltage by as much as 90 degrees 90 degrees at 50 Hz is 4 msec at 60 Hz it is 4 2 msec Typically current either lags the voltage or it may slightly lead it By the time you have gotten to this test you have verified that the voltages and currents are reasonable sizes and that their sequences appear to be correct z Select Signals to
96. l operating mode if a connection is not made to the VN input PowerSight will base its measurements on the neutral point between all the phases in doing its phase neutral measurements In the phase phase measurement mode V12 V23 and V31 are displayed instead Please note that when PowerSight is operating in 2 current mode V31 is not calculated To set PowerSight for reading phase neutral phase phase or DC voltages refer to the Measurement Modes chapter Voltage Measurements in PSM The consumption data log can record maximum minimum and average RMS voltage for each phase for each logging period 60 The summary values at the top of the screen are the maximum minimum and average of all the values shown on the screen When viewing consumption waveforms the average RMS of the cycles of the waveform is shown at the top with the average crest factor listed below it The instantaneous value of each point of the waveform can be determined using the vertical scale If a harmonic analysis is displayed the RMS voltage is also listed If trending data is being recorded and PowerSight is operating in phase neutral voltage measurement mode the average Vin Van and V3n voltages for each second will be displayed and recorded each second If in phase phase voltage measurement mode the average V12 V23 and V31 voltages for each second will be displayed and recorded each second The measurements of voltage presented on PowerSight can
97. l record capacity of the meter Each of the 3 displays appears for 2 seconds before being succeeded by the next display in order The time remaining and number of record capacity are controlled by your selection of variables to be logged The default is 6 6 days and 4050 records when logging i REP e nog is started The number of F j records stored is controlled by your setting of the logging period The default is one record recorded each 3 minutes Records stored 219 OE alfa lel This summary of displays is very helpful during logging to verify that logging was setup and is proceeding as planned It also provides valuable awareness of when the log is going to be filled The elapsed time of monitoring is how long the unit has been monitoring Generally this is how much time is recorded in the log If the log fills up and logging continues writing over the oldest data the elapsed time keeps increasing even though the logged time quits increasing This means that the maximums minimums and averages displayed on PowerSight may be different from those in the log since the monitoring session is for a longer period of time than the logging session 80 The time remaining to fill the consumption log is how much longer the logging session can continue before the log is filled and logging either stops or begins writing over the oldest data The time capacity of the log is how much time it will take to fill the consumption log Thi
98. may be perfectly in phase with the voltage No amount of capacitance can raise this power factor in fact it will lower it However when harmonics are not present the true power factor turns out to be equal to the cosine of the angle of phase lag of the current No amount of harmonic filtering will raise this power factor because it has no relationship to harmonics True power factor is 1 00 for a purely DC system Displacement power factor is actually not a power factor measurement It is the cosine of the number of degrees that the current of the fundamental frequency lags the voltage of the fundamental frequency DPF cos where is the phase lag of current To do this measurement properly PowerSight uses Fast Fourier Transform FFT analysis to separate the harmonic currents and voltages from the fundamental current and voltage and to do a precise measurement of the angle between those fundamentals The resulting phase angle is then transformed using its inverse cosine to obtain the displacement power factor This value is useful for deciding how much capacitance to add to a circuit to bring current into phase with voltage thereby raising the displacement power factor Displacement power factor is 1 00 for a purely resistive load or a DC system and drops down as the reactive power increases True power factor can be determined for each phase and for the total power Terms for these measures are TPF a TPF2 TPFs 70
99. n From File and select the specific setup you wish to use To retrieve the setup presently in a connected PowerSight click on From PowerSight When the Data Setup menu is first entered the setup that is shown is the setup from the connected PowerSight If no PowerSight is connected the initial setup is the Default setup The default setup can always be recovered by clicking on Defaults Loading Data Setups from the Memory Card SD Card There are times that is is useful to load a data setup into the meter from the memory card the SD card Examples include re loading the setup into the meter to be sure it is correct loading different setups as you move from location to location To load a data setup into the meter from an SD card load the data setup file onto the SD card in an accessible place Data setup files end with the file extension stp The meter can detect these files if the are located in either the root directory the highest level folder on the card such as F or in a directory off of the root that is named the same as the serial number of the meter For instance a meter with serial number 12345 can detect data setups that are in the root directory e g F or the serial number directory e g F 12345 To detect a data setup on an SD card go into the Remote Control mode in PSM and press the virtual Setup key It will ask if you wish to load a setup from the memory c
100. nd for each phase Harmonic Distortion with HAO option Range Display of THD and individual harmonics through 25th 1800 Hz of all signals With PowerSight Manager software display of harmonics through 63rd 3900 Hz Accuracy To within 1 of fundamental These specifications are subject to change without notice 149
101. ne of the phases originates from ground Be sure to follow the safety warnings of the previous sections before making the connections 22 Connections Using 2 Current Approach In the previous sections the approach used Phase 1 to measure power has been based on determining the power of each phase and then j summing them PowerSight to get the total power The 2 current approach figure 8 allows you to determine the total power from measuring only 2 of the 3 currents and combining them Fig 8 Connections for with the 3 2 Current Probe Approach voltages of the three phase circuit The disadvantage of this approach is that you cannot determine the power power factor or VA of each individual phase and of course you cannot record the current of one of the active phases A necessary use for this type of connection is to measure utility power where only two metering CTs and three PTs are provided After hooking up to the CTs and PTs you enter the input ratios into PowerSight see the Setting Inout Ratios section in order to record the correct values the values on the primary side of the transformers A different motivation for using this type of connection is to save time and money By only connecting to 2 of the 3 currents a small amount of time can be saved The frugal user appreciates 23 this approach because he can save the cost of one current probe when buying a system in order to measur
102. neutral mode Figure 1E presents grounded delta service This configuration is actually not very common It can be attractive to use if an electrically isolated three wire delta service is available and there is a need to provide the power a long distance away at a private facility such as a saw mill By grounding one of the phases at the source the cost of supplying one of the phases to the remote site is saved A motor at that site would be connected to phase 1 phase 2 and earth ground There is increased danger in this configuration over normal isolated delta service since the reference to ground is intentionally an excellent conductive path Nevertheless PowerSight will provide the desired measurements in this configuration 15 Connecting to Single phase Power Figure 2 presents the basic connections to a single phase system Be sure to follow the safety warnings of the previous PowerSight sections before making the connections Clamp your phase 1 current probe onto the Hot wire Make a metallic connection to neutral with the Vn voltage lead Similarly connect the V1 lead to Hot Since voltage now comes into PowerSight on V1 and current is sensed by l1 the power and power factor for this single phase system will be available as phase 1 power and phase 1 power factor Fig 2 Basic Single Phase Connection A Caution Until you are certain that your voltage connections to PowerSight are correct di
103. nging the Frequency Measurement Mode in PSM To determine the frequency measurement mode using PSM connect PowerSight to PSM and then either go to the Setup Data menu and read what appears in the Input Frequency box or operate in Remote Control mode and press the key combinations described above To change the frequency measurement mode using Input Frequency Variable 22 200Hz PSM either go to the Data Variable 22 200Hz Setup menu click on the Input Frequency drop down box select the mode that you wish to operate in and then send the new setup to the connected PowerSight meter or operate in Remote Control mode and press the key combinations described above Always Positive Power versus Negative Power Allowed There are 3 power measurement modes in PowerSight Always positive power Negative power allowed 2 current probe approach Most users perform measurements on equipment that is either always consuming power or always generating power However there are cases in which you may wish to measure power use on equipment that is alternatively consuming and generating power like an oil well pump jack Always Positive Power measurement mode and Negative Power Allowed measurement modes are provided to allow ease and accuracy of measurement in both types of situations When PowerSight is shipped from the factory it is set for Always Positive Power measurement mode In a typical setup if you connect a current probe backwar
104. ning log capacity The following tables provide log capacities for a variety of logging intervals if you use either the Default setup for PowerSight or a custom setup created just for comparison purposes This illustrative setup is typical of one intended for general logging of power Itis called CustomSample The CustomSample setup has only the following variables selected using the data setup feature Time Date Voltage phase 1 average Voltage phase 2 average Voltage phase 3 average Current phase 1 average Current phase 2 average Current phase 3 average Current Neutral average Power phase 1 average Power phase 2 average Power phase 3 average Power Factor phase 1 average Power Factor phase 2 average 138 Power Factor phase 3 average Power Factor Total average The results of these tables are not intended for use with other custom log setups Log Interval Default Setup CustomSample Time Capacity Setup Time Capacity 1 second 75 7 minutes 4 3 hours 5 seconds 6 3 hours 21 3 hours 10 seconds 12 6 hours 42 6 hours 15 seconds 18 9 hours 2 7 days 30 seconds 37 8 hours 5 3 days 45 seconds 2 4 days 8 0 days 60 seconds 3 2 days 10 7 days 90 seconds 4 7 days 16 0 days 2 minutes 6 4 days 21 4 days 3 minutes 9 5 days 32 0 days 5 minutes 15 8 days 53 3 days 10 minutes 31 5 days 3 5 months 15 minutes 6 8 weeks 5 3 months 30 mi
105. nnected to PowerSight This will be clear by the box on the main menu with the words Unit Connected appearing within a large green banner Note that the box also says Serial Comm enabled and Datalogging enabled Click on Setup Data and __ review the setup that is in Ele Settings View Data Tools Help PowerSight Review the section on Custom Data Setup ee ne Logging and make any rsao00 changes that are needed a sapu in the setup and store it to nena ae PowerSight and perhaps save it to a file For instance check to see how many records can be recorded given the choice of variables and check the length of time that logging can proceed before the log will fill up If either of these items is too small remove unneeded variables or change the logging interval Make sure the logging interval is short enough to have at least 10 records in the log before you end logging Less than 10 records will not look presentable when graphed Generally strive to have at least 100 records in a log That would allow for 10 data points in each column of the graph When PowerSight is at the site where it will be used 1 Hook up the voltage leads and current probes to the circuit being monitored referring to the appropriate diagrams of the Connecting to PowerSight chapter Insert the power plug into the 12VDC jack on the right side of the meter as described in the Connecting to Power section Power for the m
106. nnected to the correct phases Thus if the voltages are rotated to the right one position 45 but the current probes are connected correctly PowerSight will report that the current probes are rotated left one position Although assuming that the voltage connections are not rotated identifies the phases incorrectly the total power will be correct and the individual readings will be correct The phases will be mislabeled Another thing to consider is that in some cases several possible explanations for the same error are listed as separate errors In these cases the potential errors are listed in order of how likely they are be the correct explanation An example of this would be 2 errors the first being that 11 and 12 have been switched and the next error is that I3 is backwards Only one of these errors actually exists and the more likely one is that I1 and 12 are switched In these cases fix the error that seems most likely to you to be correct and run SureStart again There are over 70 different error types reported The general types their explanations and the corrective actions required are Probe not connected The probe that is identified appears to not be connected to PowerSight Check that the probe is firmly connected to both PowerSight and to the power system No current The probe that is identified is connected to PowerSight but no current is detected This may indicate that the load is turned off or that the probe
107. nology accessories is as follows Accessories Ps2500 _ i 120ADP a 120ADP discontinued 15KVP 5KVP 5KVP version with ext box CAS3 CASW CHG1 CHG2 CHG3 CHG4 COMM DC600 DC ISO discontinued DFV DXV MEM1 FAO eFX6000 FX3000a FX3000 discontinued FX5000 HA10 discontinued HA100 HA150 discontinued HA1000 HA3000 HA5 HA500 discontinued Yes not compatible use 120ADP a Yes Yes not compatible use new version Yes Yes Yes for Euro 220V standard not compatible not compatible Yes for US 120V standard not compatible Yes not compatible Yes Yes Yes Yes Yes Yes not compatible use FX3000a Yes not compatible Yes Yes all units Yes Yes not compatible 146 Accessories cont d _ PS2500 _ HA GFD LDC discontinued LDC2 LDC3 LDC4 SafeConnect SCAS2 soft operating case SCAS3 soft accessory case SCAS4 soft all in one Yes not compatible Yes not compatible Yes Yes No Yes Yes 147 Specifications Size 3 88 9 86cm Wide x 7 72 19 61cm Long x 1 58 4 01cm Deep in Hand held region 2 14 5 44cm deep at the top end Weight 1 1 pound 0 5 kg Operating Range 0 50 degrees C 82 122 degrees F Relative humidity to 70 non condensing Meets mechanical shock requirements of MIL PRF 28800F for a class 1 harshest environment Safety and Environmental Protection CE rated 600V input
108. nutes 3 1 months 10 5 months 45 minutes 4 7 months 15 8 months 60 minutes 6 2 months 21 0 months 90 minutes 9 4 months 2 6 years 99 minutes 10 3 months 2 9 years Log Capacity 4 569 records 15 344 records 139 Troubleshooting amp Frequently Asked Questions FAQ 1 Why can t connect to the PowerSight Manager software See the PSM Troubleshooting guide on your installation CD or view the guide on our web site www powersight com for detailed help 2 How do I connect to my laptop if it does not have Bluetooth communications capability You can buy a Bluetooth Adapter from Summit Technology order BTA This adapter will plug into one of your USB ports Other brands will likely work but cannot be guaranteed to work with PowerSight 3 Why can t I receive any data from my PowerSight See the Data Troubleshooting guide on your installation CD or view the guide on our web site www powersight com for detailed help 4 Why doesn t my PowerSight read Voltage Current correctly There are many reasons why PowerSight may not be reading voltage or current First check that you have all the voltage and current leads connected correctly Then if that doesn t solve your problem check that the frequency mode of the PowerSight is in the correct mode for your situation 5 Why doesn t my PowerSight turn on This is most likely caused by a dead battery Plug in a power supply and see that the red LED at the end of the meter
109. o interpret its inputs and how you want it to calculate and record its results To accomplish these ends several measurement modes can be selected by the user The general categories are Voltage measurement modes Frequency measurement modes Power measurement modes Defining inputs All measurement modes will be explained in the next few sections The Measure Mode key allows you to make these basic choices only when needed As new measurement capabilities are added to PowerSight the Measure Mode key will keep the product easy to use Phase Neutral vs Phase Phase vs 2 Current Mode There are three voltage measurement modes Phase Phase Phase Neutral 2 Current Mode When measuring voltages you either need them recorded in phase neutral format or in phase phase format A phase neutral voltage reading is the difference in potential between one of the phase inputs V1 V2 and V3 and the neutral input VN They are presented as Vin Van and V3n A phase phase voltage reading is the difference in potential between two phase inputs They are presented as V12 V23 and V31 87 Wye systems are usually measured using phase neutral voltages Delta systems are usually measured using phase phase voltages On occasion you may wish to measure phase phase voltages in a wye system if the equipment that you are monitoring bridges two hot voltages like a single phase air conditioner running at 240 V In a perfectly b
110. o report on The report will list the peak demand period the peak average demand in Watts the peak VA demand period and the peak average VA Frequency Measurements Any periodic waveform has a basic rate at which it repeats itself This is the fundamental frequency of the waveform expressed in units of Hertz or cycles second The fundamental repeating waveform is called a cycle and is usually expressed in degrees 360 degrees to complete one cycle Some frequency measurements of interest are Present frequency Maximum frequency Minimum frequency Average frequency The present frequency is the average frequency of all of the cycles of the most recent second The maximum frequency is the 78 frequency of the shortest cycle fastest repeat time during the time of interest The minimum frequency is the frequency of the longest cycle slowest repeat time during the time of interest The average frequency is the average frequency of all the cycles during the time of interest When operating in the variable frequency modes the PS2500 determines the fundamental frequency once each second The bands of frequencies that it can measure are from 45 to 66 Hz and from 360 to 440 Hz Harmonics of these fundamental frequencies are measured to 3 300 Hz Frequency Measurements in PowerSight The PS2500 does not display its frequency measurements There are other PowerSight models that display frequency measurements Frequency Measu
111. ommunications with the meter 38 Using Removable Memory Cards Introduction Your meter has adequate internal memory storage for most normal operating situations However the ability to use a removable memory card has several significant advantages extra storage for very long monitoring sessions faster transfer of data from meter to computer backup of data that is in the meter and on your computer non volatile storage of data about specific jobs or equipment Your meter is designed to use SD or MMC memory cards This capability provides essentially unlimited storage capabilities for your meter Your meter is fully operational and usually has sufficient storage without the removable memory Installation of the card is simple Simply push it into the slot on the right side of the meter Insert it so that the top of the card is visible as you look down on the face of the meter It cannot insert fully if it is upside down To remove the card you can leverage it out with a fingernail or grasp between finger tips and pull or use needle nose pliers if wearing gloves Operation and Limitations Whenever a memory card is inserted into your meter it automatically gets updated with all the data that is on the meter When the card is inserted the meter will display Memory Card Present When it is removed the display will be Memory Card Removed lf the display ever says Insert Memory Card Again remove the c
112. on of the Input Frequency Variable 20 70Hz gt Input Configuration Voltage Mode Phase Neutral gt summary display For Power Mode each input to Cetin itis ana names D gt PowerSight thereisa_ line listing the name of the signal the input ratio of the signal and a brief description of the signal If you wish to change any of these parameters double click on the line you wish to change and make the change Be 94 sure to click OK when you are done and save the data setup to a file and or to PowerSight As an example suppose you wish to record the primary of a permanently installed CT while clamped onto the secondary with your l1 current probe Get to the Input Configuration screen and double click on the l1 row If the ratio of the CT is 600 5 simply enter 600 in the first column and 5 in the second column E of Input Ratio If the ratio also applies to Change any parameter he kK other inputs enter tenet M _Cancel them at this time too des Click on OK when BoRS agus d one Description Note Once it is entered an input ratio is kept for the specified inputs until you change the ratio again The default ratios for PowerSight are set to 1 1 95 Voltage amp Current Waveforms Introduction Waveforms are very different from logs and other graphs A waveform is the most basic direct measurement It displays the instantaneous levels o
113. onsumed per month is the estimated energy consumed during a year divided by 12 For instance if 5 KWH is consumed over a 10 minute period then the estimated energy consumed per month is KWH n 5 ae 21 900KWH 21 9 megawatt x hours 74 Energy Measurements in PowerSight The PS2500 does not do energy measurement There are other PowerSight models that do energy measurements Energy Measurements in PSM PSM presents all commonly desired energy measurements When displaying a data log containing power information PSM will graph the energy consumed over any interval The user can choose to graph real energy use KWH or reactive energy use KVARH Normally a graph of energy usage will be a line that climbs up as it moves to the right This is because as more and more power is used the cumulative energy used increases In addition our Report Generator software will calculate actual energy used and the estimated energy used pr month during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change in energy use between the two intervals For instance if a comparison report is chosen and 5 KWH is consumed during the first interval of 10 minutes and 8 KWH is consumed during the second interval of 20 minutes then the report would show etre ate Untlehang change Energy Total Elapsed KWH 60 0 Energy Estimated per month 21 900 17 520
114. or use in later presentations or as a troubleshooting aid if the data log appears to contain bad data Wavesett1 is always the set that is automatically stored when logging last began 131 Working with Graphs and Waveforms General It is important to us to allow you to work with and manipulate the various graphs and waveform presentations in PSM We try to make the features that accomplish this look and feel the same throughout the program so you can handle all waveforms and graphs in the same way as much as possible This is one of the areas in which we continually improve the product and our software updates will allow you to benefit from these improvements over time This section presents the general methods we have for analyzing manipulating and presenting the data The Viewing Consumption Waveforms section presents additional material that relates just to waveforms The types of analysis and manipulation features are Selection of signals to view Attaching labels and titles Changing the color scheme Setting the scale Printing and saving as Windows bitmap graphic Redo get new data Zooming and panning Viewing data In order to ease selecting the signal you wish to see and to avoid cluttering the presentation we use an approach of primary choice and secondary choice _ This is a simple two step r Secondary Choice vew process First you choose Visa 5 sie Setl Lm a primary choice That C Curent C 2v2 Clea Al
115. ore reliably The importance of having all connections and settings correct cannot be overstated If connections are not correct important decisions may be made based on erroneous data or logging sessions lasting several weeks may have to be repeated Common connection and setup errors and their negative results are Current probe attached backwards Normally if current probes are attached backwards PowerSight senses this and turns them around in software so you still get the correct power readings This is one of the features that makes PowerSight easy to use However if you view waveforms and a current probe is backwards that current will appear upside down 180 degrees out of phase More importantly if PowerSight is in the Positive Negative Power measurement mode a backwards current probe will have a disastrous effect on the power KWH and cost readings typically the display will present 1 3 of the correct value Voltages and currents of the same phase not paired together If the V1 voltage probe is connected to the phase 1 voltage but the l current probe is attached to the phase 2 or phase 3 current large errors will occur in measurement of power and power factor For instance in a perfectly balanced three phase system with 0 92 power factor and no harmonics if the connections of the l and I3 probes are switched the true 42 power will fall 33 and the power factor of each phase will become 12 92 and 80 C
116. oring On Off then Yes Accept to indicate that you wish to start monitoring No Reject to indicate you do not want to combine the new log with the existing log inside the unit and then Yes Accept to affirm that you want to erase the old log in the unit Monitoring will then begin and continue until you stop it or turn the meter off The remainder of this chapter assumes that you wish to use the computer to customize or at least check your monitoring settings prior to starting monitoring The computer must be running the PowerSight Manager PSM software that comes with the meter and the computer must be connected to the PowerSight using the communications cable that comes with the meter There are three ways to start logging PowerSight can start immediately by command of PSM can start at a time and date set by PSM or can start when turned on and connected to power If you wish PSM to command PowerSight to start logging then you must have the computer with you when you connect PowerSight up for logging The other methods can be set up at another time and location and then PowerSight can be transported to the site of logging The first step is to set up or check the parameters for logging 1 Review the chapter Communication with PowerSight to ensure that Bluetooth communications are established between the PC operating system and the meter after the meter is turned on 129 2 Enter PSM and note that PSM has successfully co
117. ovides concise reports to summarize and document findings Comparison reports are excellent for presenting before after comparisons of power usage and projected cost Separate logs can be compared or sections of the same log can be compared for this analysis Summary reports summarize the data of a log or a designated section of the log The reports can be data only or can combine data and graphs Generating a Report PowerSight Mai Me le a report either FF Ssetnss Ven Wevelem Dastessna Teck Heb CIIC l e and then New SUETA sN a eg ed PI Report at the main menu of Open Datalog PSM or run the program EANES Report exe located in the eae Software Options same directory of your jecerve Data computer that psm exe is Rael ERAD installed in The Report Information screen will now be displayed This screen allows you to enter general information that will be printed on the report such as the title of the report and contact information about the preparer of the report so the reader can contact him When you are done entering the information click on Next The Report Type Selection screen will now be displayed You must choose between doing a summary report or a comparison report A summary report provides a concise summary of data from one consumption log This is great for preparing a report of a load study A comparison report compares 120 data from one log to the data of another log O
118. ow 6 24 09 00 3 3 Warranty Expires The date of the example 6 24 09 is the date that the warranty expires on the product Contact Summit Technology to extend the warranty prior to that date since re instating the warranty after that date will cost an additional amount The next number on the bottom line 00 is for the use of Summit Technology personnel The final number 3 3 is the highest level of PowerSight Manager software that the unit is presently eligible to work with 58 Measurement Types Voltage Measurements Voltage is the difference in electromotive potential between two points Simply stated it is the force that generates current flow and to measure voltage two points of connection are required In AC circuits this force measured in volts usually varies continuously and always reverses direction In DC circuits it is usually steady and never reverses direction If the voltage changes in a repeating fashion then it is called a periodic function All AC power distribution is based on voltage changing at a periodic rate There are several key voltage measurements Instantaneous voltage Peak voltage RMS voltage Voltage crest factor Maximum voltage Minimum voltage Average voltage Present voltage The instantaneous voltage is simply the voltage present between two points at an instant of time When the voltage is graphed over time the graph is called the voltage waveform The peak voltage Vpk
119. period If it is a comparison report they are presented with the before graph followed by the after graph 123 Other Functions of PowerSight Calibrating PowerSight PowerSight is calibrated at the factory and automatically adjusts itself every second during normal use However in order to ensure that the meter continues to meet its specifications provision has been made for you to quickly recalibrate it yourself In order to calibrate the meter you need access to highly accurate 240 0V 200 0A and a highly accurate HA1000 current probe To calibrate voltage for a PS2500 at the main menu of PSM click on the Remote Control button On the representation of a keypad that is displayed press Input Ratios then press No Reject twice to get to the display Calibrate Voltage Then press Yes Accept Attach the highly accurate 240 0Vrms to Vin and press Yes Accept To calibrate current for a PS2500 at the main menu of PSM click on the Remote Control button On the representation of a keypad that is displayed press Input Ratios then press Yes Accept repeatedly to get to the display Calibrate Current Have one current probe attached to l1 Press Yes Accept Measure the highly accurate 200 0 Arms and press Yes Accept Administrative Functions A collection of functions that are neither measurements nor calibrations are collected under the heading of administrative functions They include Identif
120. power grids in industrial countries it is recommended that you operate in either Fixed 50 Hz or Fixed 60 Hz mode depending on the frequency present If you are making measurements on a military or avionics system whose 400 Hz is stable it is recommended that you operate in Fixed 400 Hz mode If you are making measurements on a DC system then you may choose either Fixed 50 Fixed 60 or Fixed 400 Hz mode When making measurements on a system whose frequency may vary such as a generator or variable frequency drive operate in either 22 200 Hz Variable Frequency or 360 440 Hz Variable Frequency mode 89 When operating in variable frequency measurement mode PowerSight determines the fundamental frequency of the voltage or current that is attached to it every second The fundamental frequency is recorded and is used to determine the true RMS values of all voltages and currents This mode of measurement is only recommended if performing measurements on a system powered by or backed up by a generator or other system whose frequency may vary from standard measurements of the output of a variable frequency drive measurements of a system powered by a utility that does not provide power at a stable standard frequency The variable frequency measurement mode provides accurate true RMS readings of voltage current and power for input frequencies varying from 22 to 200 Hz or from 360 to 440 Hz If even one voltage or current
121. power is present or manually via PSM or via the Next button Logging can Log Stop Time Manual Stop 81 be stopped at a specific time and date or when the log is filled or manually The present time and date is the time and date of the clock inside PowerSight used for creating timestamps for the records of the log and for dating waveform sets that are saved It can be changed as one of the administrative functions see the Administrative Functions section The programmed start time of monitoring if displayed is the time and date that is programmed in the Data Setup feature of the PSM software see the Starting Data Logging section When the clock inside PowerSight reaches that time and date monitoring begins and the old log is erased The programmed stop time of monitoring if displayed is the time and date that is programmed by the Data Setup feature of the PSM software see the Stopping Data Logging section When the clock inside PowerSight reaches that time and date monitoring is stopped Time and Capacity Measurements in PowerSight The Data Setup window allows you to review and change many of the time and capacity measurements The time capacity of the consumption log the record capacity of all the logs and the programmed start and stop time of monitoring if one exists can be reviewed and changed The number of records used in any of the log types can be determined by attempting to receive the log data from an
122. psed Time displays that appear in 0 00 36 succession over and over They tell the elapsed time since logging started the time remaining before the log fills up and a combination of the number of records stored and the total record capacity of the Time To Fill Log meter Each of the 3 0 46 27 displays appears for 2 seconds before being succeeded by the next display in order The time remaining and number of record capacity are controlled by your selection of variables to be logged The default is 6 6 days Kecords Sroreg and 4050 records when 275 of 1044 logging is started The number of records stored is controlled by your setting of the logging period The default is one record recorded each 3 minutes This summary of displays is very helpful during logging to verify that logging was setup and is proceeding as planned It also provides valuable awareness of when the log is going to be filled Time Summary This summary is actually a collection of three separate Present Time displays that appear in 1 09 222599535 succession over and over They tell the present time the time or mode that will initiate 56 logging and the time or mode that will end logging Each of the 3 displays appears for 2 seconds before being Log Start Time succeeded by the next Manual Start display The present time is set using Setup Unit of the main menu of the PSM Log Stop Time software The time or mode for starting or stopping log
123. quency is the first harmonic It is discussed in the Frequency Measurements section The harmonic frequencies are the frequencies that are multiples of the fundamental frequency For instance the 7 harmonic of 60 Hz is 7x60 420Hz In this case 7 is the harmonic number of 420 Hz in a 60 Hz system The RMS value of a harmonic frequency is its harmonic amplitude They can be expressed as relative to the amplitude of the fundamental frequency or as an actual RMS amp value For 83 instance if the fundamental frequency has a current of 120 amps and the 5 harmonic has an amplitude of 30 amps then the 5 harmonic has a magnitude of 30 amps or a relative magnitude of 50 The harmonic phase angle is the number of degrees that it leads the fundamental frequency Comparing the difference in the phase angle between voltage and current of a given harmonic allows you to determine the direction of the harmonic There are two basic types of THD calculations used in power Normally THD normally refers to finding the THD of the harmonics relative to the fundamental frequency THD F THD F is defined as the square root of the sum of the squares of the magnitude of each harmonic of the fundamental frequency divided by the square of the magnitude of the fundamental frequency aie erie For instance if you are monitoring a 60 Hz current that has high distortion H1 the magnitude of the 60 Hz fundamental might be 120 amps H3
124. r a given phase Nevertheless the measurements that count most the total power factor and total power are correct in phase phase mode This result may seem surprising given that the individual phase measurements are not exact but the mathematics of combining three equations with three unknowns results in correct total power factor and total true power measurements 88 Changing the Voltage Measurement Mode in PSM To determine the voltage measurement mode using PSM connect PowerSight to PSM and then either go to the Setup Data menu and read what appears in the Voltage Mode box or operate in Remote Control mode and press the key combinations described above To change the voltage measurement mode Voltage Mode Phase Neutral bi using PSM either go to ETETE the Data Setup menu V12 V32 onl click on the Voltage Mode drop down box select the mode that you wish to operate in and then send the new setup to the connected PowerSight meter or operate in Remote Control mode and press the key combinations described above 50 60 400Hz vs DC vs Variable Frequency There are 5 frequency measurement modes in the PS2500 Fixed 50 Hz and DC Fixed 60 Hz and DC Fixed 400 Hz and DC Variable Frequency from 22 200 Hz Variable Frequency from 360 440 Hz These modes allow making measurements on virtually any power system in the world When making measurements on a power source whose frequency is stable as are most
125. r it compares one section of data of a log to another section of data in the same log This type of report is great for CS preparing before and after reports Ula oad a to verify energy savings or to prepare anamata longitudinal reports documenting TE how performance or load has im changed over time When you are u done entering the information click on Next The next screen is a Datalog Information screen In this screen specify what log is to be used for the summary report or for the before column of the comparison report If you do not want to use all the records of the log select a starting time and or an ending time in order to discard records outside of those times This can be especially important in comparison reports because you generally want to compare equal before and after timeframes When you are done entering the information click on Next If you are doing a comparison report another Datalog Information screen will appear In this screen specify what log is to be used for the after column of the comparison report Adjust the starting and ending records to use just as you did in the previous screen If you need to go back and amend your previous entries just click on the Back button and make your changes When you are done entering the information of this screen click on Next The next screen is the Log Details screen Each m
126. reen When it is a minimum such as l2 min it is the mimimum of all the minimums shown Another helpful feature for graphical analysis is the ability to pan Notice on the zoomed in example above that there are scroll bars circled one at the bottom and one at the far right You can scan the data at a magnified level by either doing a left click and hold on one of the slides and then dragging it either direction in the scroll bar or by clicking on the arrowheads at either end of the scroll bar This can be very helpful for finding oddities or spotting small data patterns 137 Determining Log Capacity There is no simple formula for estimating the capacity of a data log but there is a simple way of determining the capacity by entering their PowerSight Manager PSM software and clicking on the Data Setup button on the main menu At the upper ne left of the Data Setup window Penre will be the number of records ios aso that can fit in the log and the amount of time it will take to fill it the log If any of the logging oe a am parameters are changed on the ae Dont stop z Input Frequency Variable 45 66Hz screen the effect on capacity Oo will be immediately updated Power Mode Always positive When the capacity is Define input ratios and names acceptable it can be sent to the connected PowerSight unit or stored to file for later use This is an easy and general purpose way of determi
127. rements in PSM The consumption data log can record maximum minimum and average frequency PowerSight determines which input channel is the source of this measured fundamental frequency When graphed the summary values at the top of the screen are the maximum minimum and average of all the values shown on the screen When viewing consumption waveforms if a harmonic analysis is presented the fundamental frequency is presented Real time measurements of frequency can also be displayed in PSM by using the remote control feature In addition our Report Generator software will present maximum minimum and average frequency during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change between the two intervals For instance if a comparison report is chosen and the average frequency is 48 0 Hz during the first interval and 47 8 Hz during the second interval then the report would show 79 Before Change Change Logging Summary on PowerSight A logging summary can be displayed on the PS2500 by repeatedly pressing the Next button until the summary is displayed The summary is actually a collection of three separate displays that appear in succession over and over They tell the elapsed time since logging started the time remaining Elapsed Time before the log fills up and 0 00 36 a combination of the number of records stored and the tota
128. rent changes in a repeating fashion then it is called a periodic function There are several key current measurements Instantaneous current Peak current RMS current Current crest factor Maximum current Minimum current Average current Present current The instantaneous current is simply the current passing through a point at an instant of time When the current is graphed over time the graph is called the current waveform The peak current Ipk is the highest instantaneous current over a period of time A measure that changes continuously is of limited use A far more useful measurement is RMS current wherein a single number is generated to describe a continuously varying current The beauty of RMS current is that in power calculations it makes a 62 contribution to power roughly equivalent to a DC current of the same magnitude RMS current is defined as the square root of the mean of the square of the instantaneous current over one ye cycle of the fundamental frequency Jrms ay When measuring DC amps the RMS value is the same as the DC value Current crest factor is the ratio of peak current of a cycle over the RMS current of the same cycle Icf Ipk Irms A perfect sine wave has a crest factor of 1 414 V2 Maximum minimum and average current in power measurements refers to the maximum minimum and average of RMS current measurements during a time of interest In the PS2500 the present current is the RM
129. rent root name change it before receiving the file When the desired file has a checkmark to its left click on the Receive and View button to transfer the data log from PowerSight to PSM and immediately start looking at the data Or click on the Receive Only button to simply receive the data log Viewing Consumption Logs To select a consumption log to view at the main menu click on View Data Tools Help Consumption Data or click on E eae View and then View Consumption SS eo _ Data or click on File and then CT View Consumption Data Any of these approaches will result in the View Consumption Data screen being shown In the Types to View section click on Data Log if necessary to select that choice A list will appear of all consumption logs located in the directory shown in the Look In box If you wish to look in a different directory use the standard Windows methods for changing the directory that is shown Next select a specific consumption log by double clicking on it Serial Number 41356 it 65 Fi je 3 2F Hardware 6 30 Warranty Ends 05 25 05 For Use With PSM 3 1 Serial Comm enabled talogging enabled Harmonics enabled lemary Extended 109 When you select a consumption log to view the Select Signals to View window pops open Select Signals to iew You must make a primary CSecerday Chace gt c
130. rge currents arises when the current of each phase is carried by several parallel conductors Probe For instance the phase 1 l current may be carried in 4 Phase 2 4 Conductors parallel conductors as are phases 2 and 3 resulting in 12 conductors to measure In this case the work around Probe is to clamp onto just one of 2 the conductors of each Phase 3 4 Conductors phase and enter an input ratio to record the correct total current of each phase A fast way of doing this is to enter an input ratio of 4 1 for each phase in the example of 4 parallel conductors This may offer adequate accuracy for your needs However experience shows that although the current in each conductor of the same phase is similar in size they are typically NOT identical Overcoming the problem of unequal currents in parallel cables takes a few steps to do it accurately 1 Puta different probe on each conductor of a given phase and then viewing the currents of each probe simultaneously see the Checking Current Levels Using Checkout Connections section 30 Start monitoring for 10 seconds or so and then stop monitoring see the Starting Data Logging and Stopping Data Logging sections Press the Current key and then the More key four times to view the average current for phase 1 which is actually just one of the conductors of one of the phases Write it down Press the Current key and then the More key four times a
131. rinted View Table Data by clicking on File and then Print It can also be saved as a Windows bitmap file by clicking on File and then Save as BMP PowerSight Manager SHpMotor wim A very handy feature is the Redo 5e E ver tme i icon Whenever it is visible e a k Dalej ale s clicking on it gets fresh data to look eon 22 at If you are viewing the attached signals and you click on this another set of waveforms will immediately be captured assigned a new file name and 133 displayed Similarly if you have the high frequency spectrum analyzer option FAQ and you click on the icon a new spectrum analysis will be conducted and displayed On the other hand if you are looking at a stored data file clicking on this icon will allow you to choose other data files of a similar type to view Reading Graphs and Waveforms Graphs and waveforms have similarities in the ways they are presented in order to quickly understand what is displayed Examples of the various graphs and what the various sections mean follow 1 The name of the file that is being displayed appears in the top border If you want to determine what directory the file is in click on File and then Save As to see the directory location 2 The name of the graph or waveform set appears at the top of the graphical portion of the screen The default name is the name of the file including the directory path
132. robably correct Identifying the Power System After the SureStart feature is done analyzing the inputs the type of power system that is present is displayed on PowerSight Check that you agree that PowerSight has identified the system correctly If it hasn t there is probably a problem with the system or the connections The general types of systems that are identified on the top line of the display are Single phase Split phase two phase Three phase 4 wire delta For each of those general systems the display indicates whether voltages will be displayed and recorded as phase to neutral p n or phase to phase p p If the wrong voltage mode is selected it will not affect the power readings If you wish to change it use the Measure Mode key to do so or use PSM to change the data logging setup The bottom line of the display tells the specific voltage type of the general system that has been detected For instance a typical display is 277 480 V p n p p This means the nominal voltages present are 277 Vrms phase neutral and 480 Vrms phase phase If the voltages are not of a standard magnitude Non Standard is displayed on the second line Error Summary When the display reports the type of system that is detected it also advises once each 6 seconds how many errors it suspects there are For instance it might report maybe 3 errors or if all is well it may report no errors detec
133. s 119 Report Generator Software sccccccceesseeeeeeeeeeeeeeeeeeeseneeees 120 IFTFOCUCTION 2 secscscossseusecsesosacevevs tusedevovacesicoteasdevnseceuses sere guvsescetestedsgeessoMers 120 Generating a Report ee eeceecesecsseceseeeescecseeesesceececaeeeeaeeeeeeecseesateeeeers 120 viewing a Reporta i ccscsee cusevechcvesseencssevevnonseseunsurevevhsvaesbvedugessunbsdensegesouheeoes 122 Other Functions of PowerSight ssnssensnnnnnnnnnnnnnnnnnnnnnnnnna 124 Calibrating POWerSight ccccecceseceseesesesceseseseeceseecseseeseeceeecaeeeateeetees 124 Administrative FUNCTIONS eeeeeeeceeseeececeeeseeseeeeseceesaeseceeeaeeceaeeeeeenees 124 Other Functions within PSM cccsscsssseeeeeeeeeeeeeeeeeeeeeeeeeeees 126 MOIDI i E E E A ARETE 126 Remote Control of PowerSight s sessesssessesesessesesreresrsessesesreresesessesese 126 Locating and Installing Software and Firmware c ceseeeeeeeeee 127 Setting up Administrative Features of PowerSight via PSM 128 Setting Operational Features Of PSM oe ceeeseeceseeeseeseseeeteeeeseeeeers 128 Putting it all Together Monitoring for the First Time 129 Working with Graphs and Waveforms ccccccssssssseeeeeteees 132 General innne eect beaten eels cen alee 132 Reading Graphs and Waveforms ccccececcsseceseeesesesseeesseeeseseseeeeatees 134 ZOOMING ANA PANNING eea a e E A E 135 Determining Log Capacity cc
134. s all the power in the palm of your hand Note Throughout this manual whenever we refer to an individual key of the keypad we print the name on the key enclosed by square brackets For example the Volt key is referred to as Volt In a Hurry The Basics of Operation If you re in a hurry are experienced and use good sense you can be up and running very quickly 1 Review the section Connections to PowerSight paying special attention to the safety warnings You or the unit can be hurt if you don t do things right 2 Review the section on setting up your PS2500 Custom Data Logging There are many different operating modes and options You don t need to understand them all to get started immediately but it will increase your productivity to understand the options available to you 3 There is only one button available to press on the PS2500 the Next button Pressing this button will tell you what connection errors may be present when you first turn the unit on It then displays summaries of measurements for all three phases for your use 4 To analyze data send saved waveforms and data logs to your computer using the supplied PSM software If you want to create a data log review the section Putting it all Together Logging for the First Time This will enhance your understanding of logging and increase the likelihood that you will have good results on your first attempt Note Througho
135. s is under your control by changing the variables selected to be recorded using the Data Setup feature of PSM see the Setting Measurement Types section The record capacity of the log is how many records can be recorded before the log fills The default number for consumption logging is 4569 records This number can be changed by changing the variables selected to be recorded in the log using the Data Setup feature of PSM see the Setting Measurement Types section or by allocating more or less memory to consumption logging The number of records used in the log is a display of how many records have been saved since logging began When displayed it will always be accompanied by the record capacity of the log Time Summary on PowerSight This summary is actually a collection of three separate displays that appear in succession over and over They tell Present Time the present time the time 1 01 22 59 35 or mode that will initiate logging and the time or mode that will end logging Log Start Time Each of the 3 displays Manual Start appears for 2 seconds before being succeeded by the next display in order The present time is set by you using the Setup Unit option of the main menu of the PSM software The time or mode for starting or stopping logging is set by you using the Data Setup option of the main menu of the PSM software Logging can be set to start ata specific time and date or when the unit is turned on while
136. s where this is the case are the CTs current transformers and PTs potential transformers of the metering circuit are readily accessible for connecting to whereas the actual load carrying cables are not the conductors carrying the load are physically too large for your current probes to fit around them the load current is too large to be read by the current probes you have the voltage delivered to the load exceeds the 600V insulation limit of the current probes 24 the voltage delivered to the load exceeds the 600Vrms rating of PowerSight and you do not have other high voltage probes A typical metering circuit showing PowerSight connected is shown in figure 9 This circuit has three CTs and if higher voltage is present may have three PTs Itis typical for metering a three phase four wire wye type service PowerSight The currents flowing to the load are considered the primary currents Those currents are stepped down by each CT toa secondary current Fig 9 Recommended Connections to according to eshte the ratio of the 3 CT 3 PT Metering Circuit CT printed on its rating plate A typical value would be 600 5 120 1 The output of each CT must have some burden across it for the secondary current to flow The current probes of PowerSight are clamped around the secondary of each CT Make sure to use current probes that are suited for accurate measurement in the 0 25
137. sconnect any current probes This is because PowerSight and all of its connections float at the potential of Vn If Vn is hot there may be a breakdown through the insulation of any attached probes Helpful Hint How to Identify the Neutral lead Normal single phase wiring follows the convention of neutral being the white wire hot being the black wire hot2 being the red wire and ground being the green wire If the wiring and your 16 connections to PowerSight are as shown in figure 2 Vin will be some relatively large number like 120 volts and V3n will be a small voltage like 3 volts If you then reverse the ground and neutral leads Vin will now read slightly less like 117 volts If hot and neutral are reversed then V3n will become a large number like 117 volts Connecting to 120 V Outlet Adapter Box The 120 V Outlet Adapter Neutral oo 120 Volt Line Adapter Box accessory order number 120ADP offers a safe convenient and accurate way to monitor voltage in a commercial setting or to evaluate power usage of appliances Figure 3 presents the connections to the Adapter Box Simply plug the Fig 3 Connects to the 120 V Line Adapter adapter box into a wall socket and then attach the voltage and current leads into PowerSight Each lead is labeled to eliminate errors in connections Note Make sure that the hot and neutral wiring being measured is not reversed If so PowerSight and its a
138. se and of the total power factor during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change between the two intervals For instance if a comparison report is chosen and TPF1 is 0 48 during the first interval and 0 48 during the second interval then the report would show 72 In any display other than Power Factor and TPF was last power factor type displayed r o Displacement Power Factor of phase 3 is displayed l Power Factor TPF More TPF max More TPF min More TPF av More Power Factor 4 TPF bee TPF ax More TPF min More TPF avg More Power Factor TPF More TPF sma More TPF min More TPF avg More Power Factor 4 TPF More TPF ynax More TF yin More TPF yaval More Power Factor Maximums More TPF TPF TPF TPNy Minimums TPF TPF3 TPF TPN All TPFs TPF TPF3 TPF TPNy Averages More TPF TPF3 TPF TPNy More More l Power Factor User Interface for True Power Factor Measurements Before After UnitsiChange Change Power Factor Phase 1 Avg 0 48 0 48 volts Energy Measurements The energy consumed is defined as the sum of the true power over time E Pue x t If measurements are taken
139. sions there will be many Monitoring Data Time folders each with its own unique name The format of the name is YYMMDDhhmmss YY is the year MM is the month DD is the day hh is the hour mm is the minute and ss is the second that monitoring began This format allows sessions to be listed in order that they were created Dala Dereon The raw SD card files are in a condensed format that PSM must convert into a normal file type The default filename to be created is psm with the appropriate file extension such as psm log for a data log You can override this default name by typing the desired name into the Final File Name box The folder location of the converted file appears in the File Path box You can override this location and the path you enter becomes the new default path 41 Verifying Connections Using PowerSight SureStart Importance of Verifying Connections and Wiring After connecting to power it is wise to check that everything is connected correctly and that the wiring of the facility is correct There are two primary methods for doing this You may either send waveforms from PowerSight to your PC and visually check that all connections are correct and all signal levels and shapes appear correct see the Verifying Connections using PSM section or you can use the patented SureStart feature within PowerSight to do this more quickly and m
140. t 9 What is a Logging Interval A logging interval is the length of time between PowerSight recording measurements into its internal data log Each second PowerSight summarizes measurements such as voltage and current for all phases and the end of the logging interval these one second summaries are condensed into an average a maximum and a minimum which are then recorded into the log For instance if you set a logging interval of 15 minutes PowerSight will keep track of the average maximum and minimum of all measurement types during each second of the 15 minute period and store these summary values into the data log The logging interval can be set from 1 second to 99 minutes The 141 logging interval has a direct effect on the time it takes to fill the log For example if PowerSight has its consumption log capacity set to 1000 records and its logging interval set to 1 minute it will take 1000 minutes for PowerSight to fill the data log Each record of the log will contain the maximum minimum and average of 60 seconds of measurements 10 How do use the Data Setup feature of PSM Refer to the chapter on Custom Consumption Data Logging 11 How often should have my PowerSight calibrated We recommend that you have the PowerSight calibrated once every year We also recommend that all voltage and current probes be sent in with the unit for calibration 12 Can I use other manufacturers current probes with PowerSight
141. t in neutral would be zero In a wye system each phase is essentially independent of each other For this reason the power factor of each phase has direct meaning but the total power factor is less meaningful Most commercial wiring and newer industrial wiring is in this wye configuration 20 Connecting to Three Phase Three Wire Delta Power Figure 7 presents the recommended connections to a three phase system with voltages referenced to each other instead of to neutral This is a delta phase phase or three phase three wire configuration Be sure to follow the safety warnings of the previous sections before making the connections Fig 7 Recommended Three Phase Delta Connections Please Note Do not connect the Vn input to anything when measuring in phase phase measurement mode This may affect the measurements associated with individual phases In a delta configuration current flowing in each phase is due to the interaction of 2 different voltages For instance l1 current is the resultant of V12 and V31 Normally there is no way to determine what portion of the current is due to which voltage For this reason only the total power and total power factor have definite meaning in a delta system However comparing the power factors of each phase can be valuable for spotting a connection problem or problem with the load Delta power is common in motors and older industrial sites 21 A v
142. ted The language of these messages is not definite because in the real world of power there may be many possible connection explanations for a given set of measurements For instance if you hook up to a 3 phase power system but have your current probes attached off one position to the left that is the l1 input is actually l3 the l2 input is actually l1 and the l3 input is actually 12 and each of the probes is attached backwards the readings that result may look correct they will have been shifted 60 degrees So PowerSight might report no errors detected and with good reason but the connections are very incorrect Similarly if all of the connections are correct but the three phase circuit has a phase lead of 30 degrees strongly capacitive PowerSight will report that there may be 2 errors because a phase lead of 30 degrees is so very unlikely hence it displays that there may be errors You may need to use some judgment but in general the SureStart feature will make a judgment of what s right and what s wrong and its judgment will be correct under most circumstances We are proud of this feature Identifying Errors After the system type is identified the number of possible errors that were detected is displayed once each six seconds Pressing the Next key repeatedly will step through each of the errors It is important to note that when the voltages look reasonable PowerSight assumes that they are co
143. ted arc flash and a deadly explosion of molten material can result Once they are securely connected the deluxe voltage leads are safe for steady voltages of the 600 Vrms rating of PowerSight The clamps of the deluxe voltage leads are rated for 1000V working voltage measurement category Ill This is equivalent to measurement category IV for a working voltage of 600V the rating of the PS2500 Summit Technology also sells a fused voltage lead set order DFV The safety advantage of fused leads is that if a short occurs through the insulation of a lead to ground the fuse in the handle should quickly blow out preventing the lead from vaporizing in an explosion of molten metal The safety disadvantage of fused leads occurs when the fuse is blown or is removed The user will measure 0 volts on a live circuit and may be tempted to lower his safety awareness possibly resulting in shock or damage The DFV probes are rated for 1000V measurement category Ill Current Probes Summit Technology provides a variety of probes for your use They offer different measurement ranges different sizes and physical characteristics and the ability to measure different types of current Probes such as the HA1000 are excellent choices to use with PowerSight because they support all the accuracy specifications of the product For instance the HA1000 has an accuracy of 0 5 whereas many probes on the market have an accuracy of 2 3 Also the HA1000 maint
144. ter describing what it sees New measurements are generated each second that replace old measurements Old measurements are discarded These are the present values that are displayed as you press various keys When PowerSight is instructed to begin monitoring consumption it not only reports what it sees the present values it also generates summary information about the entire monitoring session and about each logging period Summary information includes maximum values during the session and logging period minimum values during the session and logging period average values during the session and logging period These summary statistics are of great value to you as you ask questions such as What is the minimum voltage What is the maximum current How much does it cost to run this equipment What is the average load When is my peak demand period The PS2500 measures most basic measurement types Such as voltage current power and power factor once each second The present value that is presented on the screen is the most recent measurement during the previous second The maximum value that is recorded into each record of the consumption log is the maximum of the once per second measurements during that logging period The minimum value that is recorded into each record of the consumption log is the minimum of the once per second measurements during that logging period The maximums minimums and averages of ea
145. the keypad on the front panel and PowerSight will be operating pressing the button again turns the unit off The message that the meter is analyzing the connections to the meter will appear for a few seconds and then the results of the analysis will appear Please note that turning PowerSight on does not automatically start monitoring and logging Refer to the Putting it all Together Monitoring for the First Time section for how to start monitoring and logging Turning PowerSight Off To turn PowerSight off simply press the the green on off button at the lower right of the keypad on the front panel This provides a graceful software firmware shutdown If pressing the button briefly does not turn the meter off press and hold the push button down for 3 seconds to force a hardware shutdown If this is a recurring problem contact support powersight com 34 Communicating with PowerSight Introduction The PS2500 uses Bluetooth wireless communications to communicate with your PC There are several advantages to this method safety enhancement since there are no metallic connections between the meter and your PC part of what allows your meter to be rated for 600 V Cat IV the highest safety rating in the industry simplicity no communications cables are needed reliability no cable means no forgotten cables at the site and success in on site setup and download reliability no physical connections are neede
146. the absence of the flashing asterisks Please Note Before you start monitoring verify that PowerSight s wall charger is charging the internal batteries The internal batteries won t operate PowerSight for many hours without assistance Verify that the red charging indicator light is shining through its hole near the DC input jack Basic Consumption Data Logging The basic PowerSight unit logs aspects of energy consumption as described in the previous section There are many different modes of operation and data logging options available to ensure that you can measure and record just about anything you need to To simplify things we provide a default data logging setup and have that installed when you receive your unit so you are ready to begin logging under general circumstances The default data logging setup is Logging period 3 minutes This means that every 3 minutes a new record is created that includes all the variables that are requested by the setup For instance if maximum l1 105 current was one of the requested variables each record would include the maximum l1 current of the previous 180 seconds 3 minutes After one hour there would be 20 records 60 2 20 in the log Three minute logging period was chosen because it allows you to log for a reasonably long period of time with a reasonably short period between records Of course your needs may vary from this in which case you can easily customize the set
147. the values shown on the screen When viewing a consumption waveform transforming it into a harmonic graph presents a bar chart showing the relative magnitude of each of the first 50 harmonics The THD F is listed at the lower right Transforming a consumption waveform into harmonic data presents a chart of the magnitudes and phase angles of each harmonic The THD F and K factor are also listed The measurements of voltage presented on the PS2500 can also be displayed in PSM by using the remote control feature In addition our Report Generator software will present average THD F for voltage and current of each phase during any one or two intervals of time set by the user If the use of two time intervals is chosen it will report the percent change and the actual change between the two intervals For instance if a comparison 85 report is chosen and THD F of Vin is 4 8 during the first interval and 4 7 during the second interval then the report would show Before After Units Change Change 4 7 0 01 2 1 THD Voltage Phase 1 4 8 86 Measurement Modes Introducing Measurement Modes PowerSight performs so many measurements that it is quite a challenge to keep the instrument easy to use Often you make measurements on one general type of system There is no need to complicate your task by PowerSight asking you to make the same choices over and over Many of the basic choices define how you wish PowerSight t
148. tor twice in order to double the magnetic field strength This can get it in the measurement range and it boosts the signal to noise ratio If you use this method set the input ratio for the current probe to 1 2 see the Changing Input Ratios in extra length of wire that is PowerSight section wound up into a coil of 10 turns Clamping your current probe around this extension coil will wy If the current to be measured is small it may be acceptable to open the circuit and insert an boost the signal strength 10 times and allow accurate reading of small currents If you use this method set the input ratio for the current probe to 1 10 or however many turns there are in the coil 32 Turning PowerSight On Connecting to Power Although PowerSight comes with Ni Cad rechargeable batteries those batteries are intended to keep PowerSight functioning during limited power failures and to allow quick measurements without the bother of always having to find a 120 Vrms source When fully charged the batteries can power the unit for up to 10 hours For longer usage and to recharge the batteries your unit has been supplied with a wall mount power supply This power supply cannot be used with the model PS3000 and the PS3000 power supply cannot be used with the PS2500 To use this power supply simply plug it into any 120 Vrms source use the model CHG4 charger for 120Vrms and the model CHG1 for 220V and then plug its barr
149. true power is displayed at the top right Ifa harmonic analysis of a phase is displayed the true power of that phase is also displayed If trending data is being recorded and in phase phase voltage measurement mode the average true power and average apparent power of each phase will be displayed and recorded If in phase phase voltage measurement mode the total true power and total apparent power will be displayed and recorded The measurements of power presented on PowerSight can also be displayed in PSM by using the remote control feature In addition our Report Generator software will present maximum minimum and average true power and apparent power of each phase and of all phases during any one or two intervals of time set by the user If two time intervals are chosen it will report the percent change and the actual change between the two intervals 68 Any Display Other Than Power Power 4 alg More Wmax More Wymin More Wravg More ower H cea Power Total VA More VA max More VA min More vA avg ore Power R Power Total a More VAR max More varmin More VAR avg Mor Power Power 4 True Power Maximums Minimums Averages More More More More Hal ore wie Ore TT w wa wa Wf MO lw we Wa wf Moret l Power VA Power Maximums Minimums Averages EA More A More VA VAVA VAq More VA
150. ttachments will float at 120 V 17 A Note The 120ADPa is rated for continuous duty of up to 15 Arms Do not exceed this continuous load To evaluate the power usage of an appliance simply plug the appliance into the top of the 120 V Outlet Adapter Box after the other connections have been made and verified Even without an appliance plugged in the adapter box offers a convenient means of checking for transients or analyzing the harmonic content of the incoming voltage Connecting to Multiple Single phase Loads Figure 4 presents a means to monitor 3 single phase loads simultaneously The loads must all share the same neutral PowerSight voltage connection If the loads run off the same line voltage connect V1 V2 and V3 to the same hot wire l1 l2 and l3 serve the 3 loads This approach can also be used to evaluate the current of a 4th load but the power used by that load will not be calculated Neutral Fig 4 Multiple Single Phase Connections 18 In this configuration the voltage current and power of each load can be displayed directly or graphed on your PC using our PSM software Connecting to Split Phase Two Phase Power Fig 5 shows the recommended connections to a split phase system as found in commercial and residential facilities when PowerSight measuring the supply to two single phase loads There are two Hot wires 180 degrees out of phase with each other an
151. ttmeter mode is a method of calculating total power using only 2 current probes and 2 phase to phase voltages This power measurement mode is discussed in the Voltage Measurement Mode section since it has direct effects on the measurement and display of voltages Changing the Power Measurement Mode in PSM To determine the power measurement mode using PSM connect PowerSight to PSM and then either go to the Setup Data menu and read what appears in the Power Mode box or operate in Remote Control mode and press the key combinations described above To change the power Power Mode Always Positive j j Always Positive measurement mode using in PSM either go to the Data 92 Setup menu click on the Power Mode drop down box select the mode that you wish to operate in and then send the new setup to the connected PowerSight meter or operate in Remote Control mode and press the key combinations described above Defining Inputs All current probes used by PowerSight are self identifying so they are automatically calibrated to the unit when they are plugged in This is a convenience a time saver and a protection against making errors in measurements There are occasions where the input does not represent what it actually is In these cases the user needs to define the inputs for PowerSight or for PSM The chief need for defining inputs is to enter in input ratios for voltage or current There are several occasions when this is
152. u select a 7 ULES waveset to view the aei 2v3 Cea Al ae Select Signals to View VotageandCunent 3V31 window pops open You __tee_ make a primary choice of pj aj oie alee 3 Al ela a eo 99 voltage current or voltage and current and then you make a secondary choice of which phase or phases to view then click on OK There is a wealth of features related to viewing and analyzing waveforms Voltage and current can be viewed together and multiple phases of signals can be viewed together Portions of waveforms can be zoomed into and panned left right or up down Refer to the Working with Graphs and Wavefoms section to learn more about available presentation and analysis features You can easily transform any waveform into either a graph of harmonic data or a view the raw data for each harmonic and K factor To convert a waveform time domain representation into a harmonic graph frequency domain representation click on the RMS Value 206 5 Harmonic Graph icon or click ee on View then Harmonic 500 0 6 20 22 24 seateeeeecese Graph To transform a waveform into harmonic data either click on the Harmonic Data icon or click on View then Harmonic Data You have the choice of viewing the amplitudes of individual harmonics as either RMS amplitudes Vrms or Arms or as a percentage of the magnitude of the fundamental
153. up This is discussed in the Setting the Logging Period section Log start mode Start manually Other modes are available and are discussed in the Starting Data Logging section Log stop mode Don t stop This means that if the log fills up it will continue receiving new data which will be written over the oldest data This is discussed further in the Stopping Data Logging section Frequency mode Variable 22 200Hz This allows PowerSight to measure the frequency every second and perform measurements whenever the fundamental frequency is in that range If you do not need to measure varying frequency it is recommended that you change the mode to one of the fixed frequency modes Voltage mode Phase Phase Power mode Always positive Unless you are dealing with the unusual presence of regenerative power this is the recommended mode to operate in Inputs configured for input ratios of 1 1 Measurement types standard set of 52 variables The default set of measurement types are the maximum the minimum and the average of the following variables voltage from phase 1 to neutral phase neutral mode voltage from phase 2 to neutral phase neutral mode voltage from phase 3 to neutral phase neutral mode voltage from phase 1 to phase 2 phase phase mode voltage from phase 2 to phase 3 phase phase mode voltage from phase 3 to phase 1 phase phase mode current in phase 1 curr
154. urrent probe not fully connected to PowerSight The current probe connector needs to be fully seated within its socket If it is not the reading may be 0 resulting in a loss of about 1 3 of the power of a three phase system the probe may be misidentified resulting in current readings of a fraction or a multiple of the correct value or the display may say l input too large and PowerSight will refuse respond to any keypad button Voltages not connected If one or more of the voltage probes is not connected properly test results for voltage power and power factor will be very inaccurate Typically power will be off by much more than 30 in a three phase system Circuit not energized If one or more of the phases is not energized then any logging session will be a waste of time Incorrect frequency measurement mode If PowerSight is set for fixed 50 Hz operating mode but the circuit is actually 60 Hz all measurements will be erratic and will vary from second to second Similarly if it is set for fixed 60 Hz but you are measuring a variable speed drive operating at 55 Hz the results will be erratic and vary from second to second Non standard voltages or phase angles If there are unusual voltages or inter phase angles the circuit that is being monitored is suspect There may be a problem with the equipment or power service that should be understood before a logging session begins SureStart is a patented technology d
155. use Clean them with a rag or sand them with fine sand paper and then slightly oil the surface Any dirt or rust will affect the accuracy of the measurements Connections to PowerSight Voltage test leads plug into the top end of PowerSight Each test lead of the Deluxe Voltage Test Lead set is labeled Vn V1 V2 or V3 and each jack is similarly labeled Vn V1 V2 or V3 A Note The Vn test lead is a different color from the other leads black Similarly the Vn jack on PowerSight is a different color from the other ones black Connecting anything other than neutral or ground to the Vn jack can jeopardize your safety the functioning of the unit and the accuracy of the unit 12 Current probes plug into the top end of PowerSight just above the voltage inputs Each current probe is labeled h 12 13 or IN and each jack is similarly labeled l1 l2 13 or IN When plugging a current probe into PowerSight the flat side of the plug should be facing upwards so the label is readable This will align it properly for plugging into the PowerSight case Clamp on probes have a correct orientation in which to attach them On most probes head there will be an arrow pointing in the direction of the conductor being measured When clamped onto l1 12 13 or IN the arrow should point along the conductor from the power source towards the load If the current probe is connected backwards its waveform will appear upside down when you uplo
156. usual and the LDC is connected in parallel to two of the inputs of PowerSight You may wish to remove the in line fuse assemblies plug your voltage leads directly into the stackable plugs and plug the in line fuse assemblies between the loose ends of the voltage leads and the voltage clips This provides a connection that is electrically equivalent to the normal connection but the fuses are physically as close to the power source as possible The advantage of this approach is that if one of the voltage leads gets shorted to ground perhaps from being cut by a panel door a fuse quickly blows providing added protection Note Do not use the LDC without the in line fuses being connected between it and the power source The fuses are the only circuit protection for the LDC When the input side of the LDC is fully connected properly plug the long DC output plug into the DC input jack of PowerSight The 29 red charging indicator near the jack will light up if everything is operating and connected properly Note If a fuse is burned out or missing it will appear that there is no voltage at the source Verify that the fuses are working properly before assuming that the source is dead Injury may occur if you wrongly assume that the source is deactivated Measuring Multiple Parallel Conductors ECONO problar wiih Phase 4 Conductors measuring la
157. ut this manual whenever we refer to the Next button of the PS2500 it will be referred to as Next Connecting to PowerSight Voltage Test Leads A Deluxe Voltage Probe set consisting of four leads is included with each PowerSight Each of the voltage test leads is 6 feet 2 meters long with safety banana jacks at one end and safety plunger clamps at the other end Each is labeled at both ends as the V1 V2 V3 or VN test lead The safety plunger clamps have telescoping jaws that you can actuate while keeping your fingers three inches away from the actual metallic contact Regular test probes have conventional alligator jaw attachments that require your fingers to be within one inch of the metallic contact Also the method of attaching alligator jaws to a test lead can allow a gap in the insulation between the lead and where they join This is where your thumb and finger are pressing while you actuate it A For these reasons to avoid unnecessary risk of shock only use test leads and clamps that are CE rated 1000V CAT Ill or 600V CAT IV such as those supplied with your meter A Another word of caution Whenever connecting to a live circuit remember that the jaws of a voltage test lead are much wider when they are open than when they are closed The potential to short or flash across two adjacent terminals or wires is a constant danger when connecting to a live circuit Depending on the current capacity of the circuit being shor
158. wards If the sequence is wrong either two voltage leads are switched or 2 current probes are switched while no voltage is present Non Standard voltage The voltage levels are outside of normal operation range of normal power systems It may be correct or there may be a problem with the system or the wrong system has been identified No signals detected The operating frequency may be out of the measurement range of PowerSight or nothing is connected or the system is deactivated Wrong frequency setting PowerSight is expecting one frequency but it is measuring another The display of this error tells the frequency mode that PowerSight is set for and then displays the actual frequency that is measured Use PSM to set the frequency mode to the correct setting 47 Checking out Connections using PSM The PowerSight Manager PSM software is included in the cost of your PowerSight meter You can use it to visually determine if the system connections and levels are correct Use PowerSight s patented SureStart feature for a fast reliable approach to checking that connections and settings are correct Checking Voltage Levels Using PSM As an alternative to using SureStart you can capture a waveset a set of 7 time coincident waveforms and analyze it graphically Refer to the Saving Consumption Waveforms section if you do not know how to capture waveforms with the meter Select Signals to iew F Once a waveform has o
159. werSight ceeeeseees 71 Displacement P F and Phase Measurements in PowerSight 72 Power Factor and Phase Measurements in PSM n se 72 Energy Measurements ccecescsccssesecseeseseceescesececnceseceeneeseceeneeseeeeneeaeees 73 Energy Measurements in PowerSight ccecsssesesecceseeeseeeeseseseeeeseees 75 Energy Measurements in PSM uc ceeeseecesescsseceseeeeseseneeeeseeceseseaeeeeatees 75 Cost Measurements cin cans cee ei oie A te ed ae 76 Cost Measurements in PowerSight s sssssssssesesssseseseesesrssssessseserresesrse 76 4 Cost Measurements in PSM eee ceeeceeeecessceeseecessceeseecssseseseeens 77 Demand Period Measurements e s eseseeeseiereierererererererererereresesesesesesesese 77 Demand Period Measurements in PowerSight ecceseeeseeeeeees 78 Demand Period Measurements in PSM ceeseeeeseseseeseseeeeeeseeeneeeeees 78 Frequency Measurements ceceseseescsseseeeceeseeeceeeseeecneeseeesseeecneeseenens 78 Frequency Measurements in POWerSiQN eceseeeeseccsseeeseseneeeeaeees 79 Frequency Measurements in PSM ceeeseeceseseeceseseeeeeeseseeeeseneneeeeees 79 Logging Summary on PowerSight eceeeeeccsceceseteeeeeeeeeeeseecseeetateeeeers 80 Time Summary ON PowerSight ccceseseseesesesceeeeseeeseecseeeeaeeeeeeeeneeees 81 Time and Capacity Measurements in PowerSight ceeeeseees 82 Time and Capacity Measurements
160. will no longer appear at the ends of the bottom line of the display Receiving Consumption Data Log from PowerSight PowerSight Mana gt To receive a consumption Eie Settings vie Orr data log from PowerSight the PowerSight unit must Setup AA PowerSight Manager Version 3 1T Jun 5 2004 be connected to a ET date setup computer running PSM A Sep Unit At the main menu of PSM zy the green Unit Communications E Connected Status box sapies nt S must be displayed At the ws feof tea er Hardware 6 30 Main Menu you can either 3 rovUsewih FSM 31 g y Me pial Serial Comm enabled click on the Receive Data button or on the Data dropdown button and then Receive Data In either case the Receive Data menu will open and all the different types of data files in the connected PowerSight will be displayed In the Data Types to Receive section make sure that there is a check in the box before the line Consumption Data Next look in 108 the tabular section for the line with the Log data type entry Consumption logs have a To File name ending with log Make sure that the box at the start of the line is checked and then click on Receive and View to transfer the data log to your computer The name of the file is based on the entry in the File Name box For instance if osm is entered in the File Name box the consumption log will be called psm log If you want a diffe
161. y be switched off by other personnel Simplified monitoring connections no need to think about powering PowerSight when installed inside a CASW weather resistant case Figure 11 shows the correct method of connecting the LDC to PowerSight The LDC comes with two long red input leads that end with a stackable safety banana plugs These stackable plugs are to be inserted directly into two of the inputs of PowerSight If you are monitoring power without a neutral we recommend plugging them into the V1 and V2 inputs If an external neutral is present we recommend plugging them into the V1 and VN inputs In any case there needs to be a potential between them of at least 100 Vrms and no more than 500 Vrms from 50 Hz or 60 Hz power The LDC4 is a more powerful version of the LDC2 The LDC2 can be used with the PS2500 PS3500 and PS250 The LDC4 can be used with the PS2500 PS3500 PS4500 PS4000 and PS250 28 The LDC also comes with in V3 or Vy line fuse V4 assemblies plugged into C 2 Fused In Line Lead the stackable plugs These H red assemblies single Phase Delta contain 1000V Vn V4 V2 Vv V2 fuses They provide PowerSight LDC protection if a short should 12V occur in the 12V LDC The two voltage leads that would normally be plugged into PowerSight are plugged into the loose Fig 11 LDC Connection Diagram ends of the in line fuses At this point PowerSight is ready to measure voltages as
162. ying the unit Viewing the options that are loaded Reporting the warranty expiration date Changing the time and date Changing the initial displayed greeting Setting the communications rate Enabling Disabling 2 Current Mode 124 All administrative functions are available while operating in Remote Control mode in PSM by pressing the Admin key on the screen and following the directions Many are also available by pressing the Next repeatedly when the meter is first turned on Identifying the unit results in the following being displayed Serial number of the unit its unique identity Ser 02507 Digital Processing revision FW 4 17 HW 7 11 level algorithms used for measurement Firmware revision level what level of software is active within PowerSight Hardware revision level what level of hardware compatibility it is These identifiers are important in any communications with Summit Technology about your unit Viewing the options that are loaded results in a display such as This display indicates that Extended Memory M is active This information may be important in communications with Summit Technology Ser 02507 Options HLS456M Checking the warranty expiration date results in a display such as The date 6 24 09 is the date that 7 the warranty expires on the Warranty Expires product Contact Summit 6 24 09 00 3 3 Technology to extend the warranty prior to that date since re instating the w

User`s Manual for PowerSight PS2500

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