USER`S MANUAL - Moore Industries International
Contents
1. E volts R resistance Adjusting Bidirectional Units When adjusting the zero percent output for bidirectional units the mid point of the output range is the set point for the zero adjustment Table 4 contains the mid point 0 degrees output settings by unit output configuration refer to the unit s model number for its output configuration For other output configurations the ZERO pot is used to set the output to the minimum output value shown in the unit s model number The SPAN pot is still used to set the full scale output to the maximum output rating of the unit With bidirectional outputs the total span of the output signal is divided equally into two portions leading and lagging For example from zero degrees to full lag of a 4 20 mA bidirectional unit the span is 8 mA instead of the total span of 16 mA This is important to note when converting current output ratings to voltage for output readings and for determining the output percentage that corresponds to the power factor settings required to adjust the full scale output as discussed in the next paragraph Table 3 PPA Calibration Equipment Specification Input Source ROTEK Power Energy Calibrator 811A DC Voltmeter Accuracy of 0 005 or better Load Resistor 0 0196 tolerance 250y resistor for 4 20 mA outputs 5 ky for 0 1 or 1 to 1 mA outputs Ohmmeter FOR UNITS WITH MG OPTION ONLY Voltage Adaptor FOR VOLTAGE VOLTAGE UN2. A Moore Industries representative will contact the person designated on your documentation if more information is needed The repaired equipment or its replacement will be returned to you in accordance with the shipping instructions furnished in your documentation WARRANTY DISCLAIMER THE COMPANY MAKES NO EXPRESS IMPLIED OR STATUTORY WARRAN TIES INCLUDING ANY WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO ANY GOODS OR SER VICES SOLD BY THE COMPANY THE COMPANY DISCLAIMS ALL WARRAN TIES ARISING FROM ANY COURSE OF DEALING OR TRADE USAGE AND ANY BUYER OF GOODS OR SERVICES FROM THE COMPANY ACKNOWL EDGES THAT THERE ARE NO WARRANTIES IMPLIED BY CUSTOM OR USAGE IN THE TRADE OF THE BUYER AND OF THE COMPANY AND THAT ANY PRIOR DEALINGS OF THE BUYER WITH THE COMPANY DO NOT IM PLY THAT THE COMPANY WARRANTS THE GOODS OR SERVICES IN ANY WAY ANY BUYER OF GOODS OR SERVICES FROM THE COMPANY AGREES WITH THE COMPANY THAT THE SOLE AND EXCLUSIVE REMEDIES FOR BREACH OF ANY WARRANTY CONCERNING THE GOODS OR SERVICES SHALL BE FOR THE COMPANY AT ITS OPTION TO REPAIR OR REPLACE THE GOODS OR SERVICES OR REFUND THE PURCHASE PRICE THE COMPANY SHALL IN NO EVENT BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES EVEN IF THE COMPANY FAILS IN ANY ATTEMPT TO REMEDY DEFECTS IN THE GOODS OR SERVICES BUT IN SUCH CASE THE BUYER SHALL BE ENTITLED TO NO MORE THAN A REFUND OF ALL MONIES PAID TO THE COMPANY BY THE BUYER FOR PURCHA
3. Ii moore PPA INDUSTRIES eee AHL February 1992 No 311 701 00 A 1992 by Moore Industries International Inc Introduction Description Calibration Installation Operation Maintenance Table of Contents 12 13 13 Introduction Moore Industries Phase Angle Transducer PPA measures the phase angle of single or three phase ac power circuits by monitoring two voltage or a combination of voltage and current inputs and produces a proportional process variable current output This manual contains descriptive calibration and installation information for the PPA Notes and Warnings are provided in this manual to help the user avoid minor inconveniences Notes and personal injury Warnings while calibrating or installing the PPA Description The PPA accepts two voltage inputs or a voltage and a current input and produces a proportional current output that is linear with the phase angle of the inputs The PPA will drive the output to zero percent should the voltage input Va input for dual voltage inputs be lost or removed while the current or the other voltage input is still applied If the current input or both voltage inputs are removed from the unit the output will be either plus or minus maximum no certainty as to which but it will be one extreme or the other The input output and operating power requirements for the PPA are all factory configured to user specifi cations selected from the avail
4. except 0 3 Connect an ohmmeter between terminals 7 and 8 at front panel of PPA Verify a short exists across these normally closed contacts and that only MOTOR LED is illuminated 4 Reverse voltage polarity to PPA at ROTEK 811A voltage output connectors 5 Verify that MOTOR LED extinguishes and only GENERATOR LED illuminates 6 Connect an ohmmeter between terminals 7 and 8 and verify that these normally closed contacts an open reading Infinite on ohmmeter 7 Connect ohmmeter between terminals 8 and 9 and verify that a shorted condition exists across these relay contacts 8 Reverse voltage input polarity again and note relay and LED states return to origin condition 9 Turn ROTEK 811A off or set to STANDBY before disconnecting equipment Page 12 PPA Installation Installation of the PPA is divided into two phases physical mounting and completing the electrical connections Generally it is less cumbersome to physically mount a unit before completing the electrical connections Mounting the PPA The PPA is available in two aluminum housing styles a surface mount SM a the DIN rail mount DM Surface mount units may be mounted on any sturdy flat surface SM units have four keyhole cutouts two on each side of the rear mounting plate for easy mounting and removal DM units are designed to mount directly on standard DIN rails These units are equipped with two mount ing clips on the rear panel tha
5. oz NOTE Refer to the Installation Section for the PPA s outline dimensions Page 3 PPA Table 2 Overload Current Ratings from table 1 Continuous 10 sec hr 3 sec hr 1 sec hr 0 5 sec hr NOTE All values are rated in amps A RS232C amp RS485 Options Provides a front panel 9 pin RS 232 connector for output to comput ers for communications in RS 232C or RS 485 protocols Each has a different internal circuit TJ Option Provides a front panel test jack for monitoring the output Does not interrupt output loop Serial Model Number A historical record is main tained on every PPA sold and serviced by Moore Industries The historical information is keyed to the EXAMPLE units serial number To obtain historical information or for technical assistance by phone you must provide both the serial number and model number of the unit in question to a Moore Industries represen tative The serial and model numbers for the PPA are located on a label that is affixed to the right side panel of the unit The following example identifies the significance of each field of the PPA model number PPA 120AC 1A 1P 4 20MA 90 120AC SM Unit Type Input Output Power Factor Phase Angle Option s Housing Page 4 PPA Calibration Every PPA is calibrated and tested at the factory prior to shipment Before placing a
6. 4 20 mA bidirectional 4 mA full lead 12 mA 0 deg 20 mA full lag 4 20 mA lead 20 mA full lead 4 mA 0 deg Factory configured Self powered from voltage input 120 or 240 Vac external power 12 42 Vdc loop powered 4 20 mA output units ONLY Controls Adjustments Two front panel multiturn potentiometers Zero Adjusts zero percent output to within 2 of span Span Adjusts 100 percent output to within 10 of span Jumpers A single internal jumper for configuring unit for single or three phase operation with MG Option two additional jumpers for this same setting Indicators LCD With DSP Option 3 5 digit liquid crystal display displays the input phase angle in degrees from 180 0 to 180 0 LED With MG Option two red LED s indicate if the input represents a motor or a generator Performance Accuracy 0 5 maximum or 0 01 power factor Stability 0 1 of reading per year Dielectric Test 2000 Vrms for 1 min between input output power case 1500 Vrms with any RSxxx Option Ripple 1 peak of full scale at maximum span and load Response 400 msec to 99 of output Overload Voltage 1 5 times nominal input voltage Overload Current SEE TABLE 2 Ambient Temperature Effect 0 01 of span per C Environmental Ratings Ambient Operating Temperature 40 to 80 C 40 to 176 F Relative Humitity operating 0 to 95 non condensing Weight 0 85 kg 1 Ib 14
7. DWIDE www miinet com China sales mooreind sh cn Tel 86 21 62491499 FAX 86 21 62490635 United Kingdom sales mooreind com Tel 01293 514488 FAX 01293 536852 L MOORE iiis e infoOmiinet com Tel 818 894 7111 FAX 818 891 2816 INDUSTRIES Australia sales 9 mooreind com au 2007 Moore Industries International Inc Belgium info 9 mooreind be Tel 03 448 10 18 FAX 03 440 17 97 The Netherlands sales mooreind nl Tel 0 344 617971 FAX 0 344 615920 Tel 02 8536 7200 FAX 02 9525 7296 Specifications and Information subject to change without notice
8. ITS ONLY Moore Industries Voltage Adapator module to convert a current output from the ROTEK to a voltage input to the PPA Screwdriver Slotted tip head width no greater than 2 54 mm 0 1 in Technicians Tweezers used For setting jumpers when required needle nose pliers may also be Page 8 PPA Setting Jumpers To set jumpers the PPA must be disassembled Figure 1 illustrates the disassembly required to access the jumper s on PC1 Figure 2 Table 4 Mid point Output Settings Output Mid point shows the jumper location s and setting options in mA 0 Units configured for voltage voltage inputs do not require any jumper settings therefore disassembly 1to1 of these units is not necessary The PPA does not 0 1 Bi need to be opened to check or adjust the zero or 4 20 Bi span setting For personal safety and ease of E handling re assemble the PPA after jumper settings 4 20 are complete or before making electrical connections 4 20 Lead to the unit NOTE The calibration procedure calls for a Figure 3 is a calibration hookup for a PPA configured load resistor and voltmeter to take for one voltage and one current input with the MG output readings Refer to the Option Calibration Setup subsection for current to voltage conversion information Figure 4 is a calibration hookup for loop powered units These units require a 4 20 mA process loop to operate properly Power Factor Set
9. POWER LOAD INPUT NOTE Use ac power input only if unit is configured with 120AC or 240AC Option Figure 11 Installation Hookup for Voltage Voltage Inputs NOTES Declaration of Conformity C EMC Directive 89 336 EEC Manufacturer s Name Moore Industries International Inc Manufacturer s Address 16650 Schoenborn Street North Hills CA 91343 6196 USA Declares that the product s Product Name PPA MODEL INPUT OUTPUT POWER OPTIONS HOUSING Model Number s PPA KR id CE ig Indicates any input output power option and housing as stated in the product data sheet Conforms to the following EMC specifications EN50081 2 1993 Generic Emissions Standard Industrial Environment EN50082 2 1995 Generic Immunity Standard Industrial Environment EN61010 1 1995 Safety requirements for electrical equipment for measurement and control use Supplemental Information None Date Fred Adt Robert Stockham Quality Assurance Director Moore Industries International Inc European Contact Your Local Moore Industries Sales and Service Office The Interface Solution Experts www miinet com United States info miinet com Belgium info mooreind be China sales mooreind sh cn UD MOOR Tel 818 894 7111 FAX 818 891 2816 Tel 03 448 10 18 FAX 03 440 17 97 Tel 86 21 62481120 FAX 86 21 62490635 IND USTRIES Australia sales amp mooreind com au The Netherlands sales mooreind nl Unit
10. PPA into service we recommend that you first bench check each unit if possible and then field calibrate each unit if necessary By performing a bench check you can verify that each unit is configured properly for the intended application and determine if adjustments to the output are required The factory calibration is performed using highly accurate test equipment to verify that each PPA meets customer specifications This equipment may be unavailable at some facilities The Calibration Setup subsection describes the calibration equip ment required PPA Controls The PPA has two types of controls the Zero and Span potentiometers pots and the single or three phase jumper Units factory configured with the MG Option are equipped with two additional jumpers which are also used to configure the unit for single or three phase input operation Zero and Span Adjustments The zero and span adjustments are multiturn pots that are located on the front panel of the PPA and are labeled ZERO and SPAN The ZERO pot is used to set the zero percent output to within 2 of span The SPAN pot is used to set the full scale 100 percent output 1 or 20 mA to within 10 of span Each of these pots is equipped with a slip clutch at each end of the wiper blade travel If either pot is turned to its extreme in either direction you will feel a slipping sensation and in some cases you will hear a clicking sound as the pote
11. SE OF THE GOODS OR SERVICES ANY CAUSE OF ACTION FOR BREACH OF ANY WARRANTY BY THE COMPANY SHALL BE BARRED UNLESS THE COMPANY RECEIVES FROM THE BUYER A WRITTEN NOTICE OF THE ALLEGED DEFECT OR BREACH WITHIN TEN DAYS FROM THE EARLIEST DATE ON WHICH THE BUYER COULD REASONABLY HAVE DISCOVERED THE ALLEGED DE FECT OR BREACH AND NO ACTION FOR THE BREACH OF ANY WAR RANTY SHALL BE COMMENCED BY THE BUYER ANY LATER THAN TWELVE MONTHS FROM THE EARLIEST DATE ON WHICH THE BUYER COULD REASONABLY HAVE DISCOVERED THE ALLEGED DEFECT OR BREACH RETURN POLICY For a period of thirty six 36 months from the date of shipment and under normal conditions of use and service Moore Industries The Company will at its option replace repair or refund the purchase price for any of its manu factured products found upon return to the Company transportation charges prepaid and otherwise in accordance with the return procedures established by The Company to be defective in material or workmanship This policy extends to the original Buyer only and not to Buyer s customers or the users of Buyer s products unless Buyer is an engineering contractor in which case the policy shall extend to Buyer s immediate customer only This policy shall not apply if the product has been subject to alteration misuse accident ne glect or improper application installation or operation THE COMPANY SHALL IN NO EVENT BE LIABLE FOR ANY INCIDENTAL OR CONSE QUENTIAL DAMAGES WORL
12. able settings listed in table 1 The PPA is packaged in an aluminum housing that can be either surface mounted SM Housing or DIN rail mounted DM Housing Electrical connections are made to terminal strips located on the front panel of each unit An optional safety cover is available for each terminal strip This optional safety cover is made of a non conductive material and is easily removed to access the terminals Every PPA is equipped with zero and span adjust ments for setting the zero and 100 percent output Page 1 PPA levels Both of these adjustments are accessible at the front panel of the PPA A single internal jumper is provided for field configu ration of the unit for single or three phase input operation Units equipped with the MG Option have additional jumpers for configuring the unit for single or three phase operation An optional liquid crystal display LCD which provides readouts of the phase angle of the input in degrees is available for the PPA Other useful options are also available and some of the more popular are described in the following subsection Options Table 1 contains the operational and performance specifications for the PPA Table 2 is a supplemen tal table containing the PPA s overload current ratings Options The PPA is available with some user friendly and application specific options The following para graphs contain brief descriptions of some of the more popular o
13. ck the units s model number for the configuration of the PPA to be calibrated This information will be needed through out this procedure for calibration setup equipment settings and output readings WARNING Extremely high voltages are present at the current input terminals I el when either of the input wires is disconnected and current is still being applied Ensure that the current input wires from the ROTEK Model 811A to the PPA terminals remain securely connected at all times while current is supplied to the PPA Zero and Span Adjustment 1 For voltage current input units disassemble PPA see figure 1 and set internal jumper s for single phase input including three phase units as shown in figure 2 Slide electronics back into housing after jumper s is are set Connect PPA to calibration equipment as shown in figure 3 4 or 5 as appropriate With ROTEK 811A in STANDBY mode set it for voltage and current input settings as required for PPA s configuration Apply external power to PPA and depress OPERATE button on ROTEK 811A to apply input to PPA 10 11 12 13 Set ROTEK 811A POWER FACTOR control to 1 Select lag by depressing LAG push button Adjust ZERO pot for a zero percent output reading Refer to table 4 for bidirectional output units use zero degree 0 values converted to volts Set ROTEK 811A POWER FACTOR control to appropriate setting for full scale adjustment per un
14. ed Kingdom sales amp mooreind com Tel 02 8536 7200 FAX 02 9525 7296 Tel 0 344 617971 FAX 0 344 615920 Tel 01293 514488 FAX 01293 536852 RETURN PROCEDURES To return equipment to Moore Industries for repair follow these four steps 1 Call Moore Industries and request a Returned Material Authorization RMA number Warranty Repair If you are unsure if your unit is still under warranty we can use the unit s serial number to verify the warranty status for you over the phone Be sure to include the RMA number on all documentation Non Warranty Repair If your unit is out of warranty be prepared to give us a Purchase Order number when you call In most cases we will be able to quote you the repair costs at that time The repair price you are quoted will be a Not To Exceed price which means that the actual repair costs may be less than the quote Be sure to include the RMA number on all documentation Provide us with the following documentation a Anote listing the symptoms that indicate the unit needs repair b Complete shipping information for return of the equipment after repair c The name and phone number of the person to contact if questions arise at the factory Use sufficient packing material and carefully pack the equipment in a sturdy shipping container 4 Shipthe equipmentto the Moore Industries location nearest you The returned equipment will be inspected and tested at the factory
15. igure 7 illustrates a typical hookup of a single phase input with MG Option Figure 8 illustrates a typical hookup of a three phase input with MG Option Figure 9 and 10 illustrates loop powered hookups for single and three phase inputs respectively Loop powered units require a 4 20 mA loop Figure 11 illustrates a hookup for a PPA configured for two voltage inputs Operation The basic PPA has no indicators Unless the unit is configured with the DSP Option an LCD or the MG Option two red LED s the PPA will operate unat tended once installed Page 13 PPA PPA s equipped with an LCD provide a readout of the phase angle of the inputs in degrees These readouts range from 180 0 to 180 0 Units configured with the MG Option have two LED s to indicate that the input is either from a motor or a generator based on the phase angle of the inputs These LED s are on the front panel adjacent to the relay contact terminals The MG Option relay changes state in conjunction with the LED s The relay action can be used for external indications Maintenance The PPA is built with highly reliable components which allows it to operate unattended for extended periods of time Because of this high reliability field maintenance is limited to ensuring that wire terminals on the unit are clean and tight We recommend that the PPA be inspected for mounting security terminal corrosion and general cleanliness at
16. it configuration Refer to table 5 Adjust SPAN pot for a percentage output as listed in table 5 for power factor setting used in step 7 NOTE Not all settings are 100 For single phase input units repeat steps 5 through 8 until zero and full scale outputs are stable For any single phase input and voltage voltage input units field calibration is complete Turn ROTEK 811A off or set to STANDBY before disconnecting equipment NOTE For MG Option check refer to the following procedure before disconnecting equipment For three phase input units continue with step 11 Turn ROTEK 811A off or set to STANDBY and set internal jumper s for three phase input as shown in figures 2 Set ROTEK 811A POWER FACTOR control to 0 Ensure LAG push button is still depressed Monitor output reading and adjust ZERO pot as necessary for a zero percent output reading Refer to table 4 for bidirectional output units use zero degree values converted to volts Page 11 PPA 14 Span adjustment is not required 15 For three phase input units field calibration is complete Turn ROTEK 811A off or set to STANDBY before disconnecting equipment Checking the MG Option NOTE Complete the Zero and Span Adjustment procedure described previously before preceding with this check 1 Remove input energy from PPA and set jumpers for single phase input as shown in figure 2 2 Set ROTEK 811A POWER FACTOR control to any setting
17. least once every six months For technical assistance or for more information about the PPA contact Moore Industries Customer Service Department by dialing 1 800 999 2900 Page 14 PPA LINE OUTPUT 2000 P JAGGE NC COM NO RELAY CONTACTS OF MG OPTION POWER LOAD INPUT NOTE Use ac power input only if unit is configured with 120AC or 240AC Option Figure 7 Installation Hookup for Single phase Inputs Ie Page 15 PPA LINE OUTPUT IO 2 PK DNG Zi 22 D AO NC COM NO RELAY CONTACTS B c OF MG OPTION aes LOAD INPUT NOTE Use ac power input only if unit is configured with 120AC or 240AC Option Figure 8 Installation Hookup for Three phase Inputs Page 16 PPA LINE q CE CE CE C 12 42 VDC POWER SOURCE CURRENT DRIVEN vt DEVICE O 2 e 2 e 2e LOAD Figure 9 Installation Hookup for Single phase Inputs Loop powered Page 17 PPA LINE 12 42 VDC POWER SOURCE CURRENT DRIVEN DEVICE 2 2o DNA LOAD Figure 10 Installation Hookup for Three phase Inputs Loop powered Page 18 PPA LINE A B C e e e OUTPUT 2o 2 2 2o 72 2 A B c AC
18. ntiometer shaft is ro tated Turning either pot clockwise increases the value of the respective output Turning them counterclockwise decreases the respective output value Jumpers The basic PPA has one jumper whose position is user selectable for single or three phase input operation not on voltage voltage input units This jumper is located on PC1 To access it the unit must be disassembled Figure 1 illustrates the disassembly required to access this jumper Figure 2 shows the jumper location and positioning options for selecting single of three phase operation Units equipped with the MG Option have two addi tional jumpers These jumpers are also located on PC1 and are also used to configure the PPA for single or three phase operation Figure 2 shows the jumper setting options for units with the MG Option PPA Indicators The basic PPA has no visual indicators but the DSP Option provides an LCD This LCD is a 3 5 digit display with fixed decimal point xxx x that provides readouts of the phase angle of the inputs with readings ranging from 180 0 to 180 0 For values greater than zero 0 0 no positive sign is dis played Units configured with the MG Option have two red LED s to indicate that the input is either from a motor or a generator To use the MG Option the inputs must be a combination of a voltage and a current source Based on the phase relationship of the inputs the PPA will indicate if the inpu
19. ptions for the PPA For information on availability of options not described here contact your local sales representative or Moore Industries directly DSP Option Provides a 3 5 digit front panel LCD that displays the input phase angle in degrees MG Option Provides a motor or generator con tact closure relay output and front panel LED s to indicate the direction of current flow This option requires one voltage input and one current input this option will not work with two voltage inputs RO Option Provides a reverse output that is proportional to the input In cases where the input would produce a zero percent output with this option the output would be the full scale 100 percent output rating of the unit Where the output would normally be 100 percent it would be zero percent with this option Page 2 PPA Table 1 PPA Operational and Performance Specifications Characteristic Specifications Factory configured Voltage Voltage or Voltage Current Voltages 69 Vac 50 90 Vac Current 1 A 0 05 1 A 120 Vac 85 150 Vac 2 A 0 1 2 A 240 Vac 170 300 Vac 5 A 0 2 5 A 460 Vac 300 575 Vac 10 A 0 3 10 A 600 Vac 425 750 Vac 25 A 1 25 A Single or three phase operation is user configurable Factory configured 1 to 1 mA 1 mA full lead 0 mA 0 deg 1 mA full lag 0 1 mA bidirectional 0 mA full lead 0 5 mA 0 deg 1 mA full lag 4 20 mA 4 mA 0 deg 20 mA full lag
20. t are used to attach the unit to the rail To complete the mounting of DM housed units place the upper portion of the rear panel clip under the upper lip of the DIN rail then pivot the unit down and back until the lower portion of the clip snaps on to the lower portion of the DIN rail For best performance mount the PPA in an area free of excessive dust moisture and corrosive elements Figure 6 contains the outline dimensions for the PPA Making the Electrical Connections Every PPA is equipped with the same number of terminals The configuration of the unit determines which terminals will be used For example if a unit is loop powered none of the lower terminals are used on a basic PPA 133 4 mm 5 25 in 120 7 mm 4 75 in 104 1 mm 4 10 in SEE NOTE 280 c2 oleo 1 1l PA 38 1 fun PHASE ANGLE 1 50 in SPAN z ROUER x NOTE DIN rail mount units have overall width of 104 1 mm 4 Figure 6 PPA Outline Dimensions Each terminal has a slotted head screw that is used to make individual wiring connections PPA s configured with the MG Option provide a contact closure output at terminals 7 8 and 9 Terminals 7 and 8 are normally closed NC and terminals 8 and 9 are normally open NO terminal 8 is common These relay contacts can be used for external motor generator indications or some other suitable contact closure application The MG Option relay is rated for 300 Vac 6 A F
21. t is representa tive of a motor or a generator If the phase angle between the voltage and current inputs is greater than 90 its a generator if less than 90 its a motor Page5 PPA BOTTOM OF UNIT Figure 1 PPA Disassembly Accessing PC1 Page6 A THREE SINGLE 7 WITH t PHASE PHASE PHASE PHASE BOTTOM OF PC1 NoT Figure 2 PC1 Jumper Locations and Settings MG OPTION M Calibration Setup The equipment used to factory calibrate the PPA may be unavailable at some facilities But to perform the field calibration procedure properly you must use the equipment as describes in this section Table 3 lists the calibration equipment required to bench check and calibrate the PPA Output Reading Conversions Two load resistors are listed in table 4 a 250y and a 5000y Units configured for a 4 20 mA output require the 250y resistor Units configured for a 0 1 mA or 1 to 1 mA output require the 5 ky resistor Readings taken with the voltmeter during calibration will be in volts when read across one of these load resistors A 4 20 mA output loaded with a 250y resistor will read 1 5 volts 1 V 4 mA 5 V 20 mA A 0 1 mA output loaded with a 5 ky resistor will read 0 5 volts 0 V 0 mA 5 V 1 mA A 1 to 1 mA output loaded with a 5 ky resistor will read 5 to 5 volts 5 V 1 mA 5 V 2 1 mA Use Ohms Law to Page7 PPA calculate other specific readings I current
22. tings When making the span Figure 5 is a calibration hookup for a PPA configured adjustment the POWER FACTOR setting of the eee ne ts ORO H R ROTEK 811A varies depending on the power factor DE or phase angle configuration of the PPA being calibrated Table 5 contains the power factor setting for the ROTEK 811A and the percentage of full scale output to be achieved when making the span adjust ment for specific unit configurations Table 5 Full scale Adjustment Power Factor Settings PPA Configuration ROTEK 811A Target Full scale Power Phase Power Factor Output Percentage Factor Angle Setting Page9 PPA ROTEK 811A DC VOLTMETER VOLTAGE CURRENT Eo NC COM NO AC POWER OHMETER INPUT NOTE L 250 for 4 20 mA output or 5 k for 0 1 and 1 to 1 mA outputs Figure 3 PPA Calibration Setup Voltage Current Input with MG Option ROTEK 811A VOLTAGE CURRENT 12 42 VDC POWER SOURCE NOTE L 250 for 4 20 mA output or 5 k for 0 1 and 1 to 1 mA outputs Figure 4 PPA Calibration Setup Loop powered Units Page 10 PPA DC VOLTMETEF ROTEK 811 VOLTAGE CURRENT MI VOLTAGE ADAPTER AC POWEF INPUT NOTE L 250 for 4 20 mA output or 5 k for 0 1 and 1 to 1 mA outputs Figure 5 PPA Calibration Setup Voltage Voltage Input Units Calibration Procedure Before beginning this procedure che
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