E N G L I S H User Manual SIMPLE LOGGER® II TRMS VOLTAGE
Contents
1. 12 4 2 Turning the Unit Omia siia aa oR 55 599599555 12 4 3 13 Starting a Recording Session 5 13 4 4 1 Stopping a Recording Session 14 4 4 2 14 Downloading Recorded 4 5 Erasing Data from Memory a 14 4 6 AT Data Storage tects Mote enh sce nu age are 15 Trend Measurements 15 4 7 1 Normal Operation 15 4 8 Normal Operating Environment 15 4 8 1 Reset Button Operation 5555555505 545 555555555555555 18 4 9 MAINTENANCE 20 Changing the Batteries 44455 a 20 5 1 APPENDIX A TROUBLESHO00TING APPENDIX B GLOSSARY Repair and Calibration Technical and Sales Assistance Limited Warranty Warranty Repairs CHAPTER 1 INTRODUCTION WARNING These safety warnings are provided to ensure the safety of personnel and proper operation of the instrument Read the instruction manual completely and follow all the safety infor mation before attempting to2. SIMPLE LOGGER TRMS VOLTAGE MODEL ENGLISH User Manual AEMC INSTRUMENTS Owner s Record The serial number for the Simple Logger is located on the back of the case Please record this number and purchase date for your records SIMPLE LOGGERS II MODEL SERIAL PURCHASE DATE DISTRIBUTOR Table of Contents International Electrical 5 15015 999555559 9 1 1 Definition of Measurement Categories 1 2 Receiving Your Shipment u uu 1 3 Ordering Information u u uu 14 PRODUCT FEATURES iDes riptienms q uum m u auqa usus S 2 41 Control 68 6 iiei 2 2 SPECIFICATI0NS S BME E 2 N 0 00 3 2 6 181 2 2 3 25 3 4 OPERATION 9 5 954 559 555995558855999359998889888899898894888998983699 10 LED Control Operation and Status Function 10 4 1 Connecting the Simple Logger II to a Computer
3. Figure 2 1 Data Logger Block Diagram Simple Logger Model L261 5 Control Features A 6 carm CONTROL STATUS START Stand By 1 Recording 2 STOP O Overload 1 Triggered 1 4 2 CLEAR O Active 2 Em 0 ERASE O Partial m Full 69 TURN OFF LowBat 1 MEMORY ALARM RECORDING INPUT 0 600VAc 9 SIMPLE LOGGER II VOLTAGE MODEL L261 AEM Mee mol ba Figure 2 2 Key Components and Features 4mm Safety Banana Input Termination located on the top of the instrument Five LED Indicators The LEDs on the instrument serve two functions control operation and status function The control operation function when holding down the PRESS button is indicated with text to the left of each LED The status function function when PRESS is not being held down associated with each LED is indicated with text to the right of each LED Refer to 8 4 1 for detailed descriptions of each LED Simple Logger Model L261 2 2 Control Button PRESS This button marked PRESS selects the mode of operation Use this button to start or stop recordings erase the memory clear alarms and turn the instrument ON OFF Female Type Mini B USB Connector located on the bottom of the instrument Reset Button not shown The RESET button resets the CP
4. Simple Logger Model L261 17 Event Recording Session has Ended The logger will be in STANDBY mode if one of the following occurs The session terminates due to recording end time being reached when recording in the Start Stop mode The recording in Start Stop mode fills the memory The user terminates the session by pressing the PRESS button until the STOP ORANGE LED lights up and releasing the button before the next LED lights or issues a Stop Recording command from the Simple Logger II Control Panel Under these conditions it is possible to turn the logger ON from the computer to download the data if the batteries have sufficient power The logger is now ready for a New Session or Download Pressing the PRESS button until the START GREEN LED lights up and releasing the button before the next LED lights will start a New Session depending on the available memory 4 9 Reset Button Operation The RESET button resets the CPU and is located under the top cover To access this button remove the battery compartment cover remove the four screws holding the two halves of the case together The reset switch is the smaller switch located on the exposed PCB A NOTE It is recommended to only press the RESET button when the logger stops responding to a normal press button control when not connected to DataView It is not recommended to reset the instrument when the logger is recording downloading or being configure
5. L261 CHAPTER 4 OPERATION 4 1 LED Control Operation and Status Function The ON OFF state of the instrument can be determined by pressing the PRESS button for less than 0 5 seconds If the instrument is ON the status of the instrument will be shown by the LEDs If the instrument is OFF no indication will be given the LEDs will not blink The instrument is turned ON by pressing the PRESS button until all LEDs light At this point the button can be released and the instrument will remain in the ON state If the button is released before all the LEDs light in unison the instrument will remain in the OFF state When holding the PRESS button while the instrument is ON each LED will light in sequence If the LEDs light in sequence continue to hold the PRESS button until the last LED lights and then goes OFF At this point releasing the button will result in no action being taken This provides a mechanism to cancel or ignore the button press Control of the instrument is performed by pressing and holding the PRESS button while the instrument is ON until the control LED corresponding to the desired operation lights Releasing the button when the desired control LED is illuminated results in the corresponding operation being performed Turning the instrument OFF pressing and holding the PRESS button until the Blue LED lights will not terminate an active recording or prevent a scheduled recording from starting While the instrume
6. instrument Technical and Sales Assistance If you are experiencing any technical problems or require any assistance with the proper operation or application of your instrument please call mail fax or e mail our technical support team Chauvin Arnoux Inc d b a AEMC Instruments 200 Foxborough Boulevard Foxborough MA 02035 USA Phone 800 343 1391 508 698 2115 Fax 508 698 2118 E mail techsupport aemc com www aemc com NOTE Do not ship Instruments to our Foxborough MA address Simple Logger Model L261 23 Limited Warranty The Simple Logger is warranted to the owner for a period of one year from the date of original purchase against defects in manufacture This limited war ranty is given by AEMC Instruments not by the distributor from whom it was purchased This warranty is void if the unit has been tampered with abused or if the defect is related to service not performed by AEMC Instruments For full and detailed warranty coverage please read the Warranty Coverage Information which is attached to the Warranty Registration Card if enclosed or is available at www aemc com Please keep the Warranty Coverage Information with your records What AEMC Instruments will do Ifa malfunction occurs within the one year period you may return the instrument to us for repair provided we have your warranty registration information on file or a proof of purchase AEMC Instruments will at its option re
7. is 10 above its input range When the battery voltage goes below 1 7 volts the instrument will shut down terminating the recording if it is recording In the STANDBY and OFF modes the logger retains recorded information for transfer to a computer Both of these modes have low power states which require very little power from the battery The LEDs will not blink at this time By using these low power states the instrument can be programmed to start recording at some time in the future without draining the batteries e STANDBY mode The instrument enters the low power state if the button is not pressed for one minute It will remain in this state until either the button is pressed or the internal clock reaches the start time for a scheduled recording e RECORD mode The instrument enters the low power state between sample sets The slower the storage rate the greater the portion of time the instrument is in the low power state Thus the slower the storage rate the longer the instrument can record Simple Logger Model L261 11 4 2 Connecting the Simple Logger to a Computer A INSTALL THE DATAVIEW SOFTWARE BEFORE CONNECTING THE SIMPLE LOGGER TO THE COMPUTER Figure 4 1 shows a typical hook up The Simple Logger II utilizes an opti cally isolated USB communication port Refer to the computer manual to locate the USB port on your computer USB Cabl
8. U and is located under the top cover To access this button remove the battery compartment cover remove the four screws holding the two halves of the case together The reset switch is the smaller switch located on the exposed PCB Flash Upgrade Switches not shown These two switches accessible from under the top cover along with the RESET button and PC software are used to recover from a failed flash upgrade procedure WARNING If the RESET button is pressed when the logger is recording it will stop recording and data in memory may be lost Simple Logger II Model L261 7 CHAPTER 3 SPECIFICATIONS 3 1 Electrical Reference Conditions 23 C 3 C 30 50 RH DC or 50 60 Hz battery voltage 3V 10 MODEL L261 Channels One Input Two Recessed Banana Jacks Voltage Range 0 to 600V Resolution 0 1V Accuracy 0 to 5V unspecified 50 60Hz 5 to 50V 0 5 of Reading 1V 50 to 600V 0 5 of Reading 0 5V Sample Rate 64 samples cycle Storage Rate Programmable from 125 5 to 12 hrs Storage Modes Start Stop FIFO and Extended Recording Mode XRM Recording Length 1 minute to 8 weeks programmable using DataView Memory 240 000 measurement 512KB The recorded data is stored in non volatile memory and will be retained even if the battery is low or removed Communication USB 2 0 optically isolated Power Source 2x1 5V AA Ccell alkaline batteries Battery Life 100 hours to gt 45 days dependent on sam
9. asurements The following are a few definitions that will help with the understanding of this section Input Channel Source for the measurement channel of the instrument Measurement Channel Measurement of input This can be a simple direct measurement the result of complex mathematical operations on a single or multiple input or other channels Sample Rate The rate at which the instrument measures inputs Storage Rate The rate at which channel measurements are stored 4 7 1 Trend Measurements The logger stores the TRMS calculation of each of the inputs In addition the user can define the storage rate recording period and measurement format using the Configure Instrument dialog box in the Simple Logger II Control Panel software Trend measurements are stored at this fixed storage rate 4 8 Normal Operation Following is a detailed description of the logger operation 4 8 1 Normal Operating Environment When the instrument is turned ON the following occurs provided there is sufficient battery voltage and no data is stored in the instrument s memory The GREEN LED single blinks STANDBY mode is active and the logger is not recording Simple Logger Model L261 15 The RED LED is OFF indicating there is no data in memory The PRESS button is used to Start and Stop a Recording Session Ifthe PRESS button is not pressed for a period of one minute the instrument will enter a low power STANDBY mode a
10. backup power will last for approximately 10 seconds while batteries are not installed 5 2 Cleaning A WARNING Disconnect all inputs before cleaning The body of the logger should be cleaned with a cloth moistened with soapy water Rinse with a cloth moistened with clean water Do not sub merge the logger in water Do not use solvent 20 Simple Logger Model L261 APPENDIX A TROUBLESHOOTING Symptom After being in a damp cold environment the logger does not function Cause Correction Condensation may have formed inside the logger shorting out the circuitry and discharging the battery Allow the circuit board to dry thoroughly in a warm location Symptom Simple Logger II does not start recording Cause Correction Make sure battery power is present Make sure the PRESS button is pushed long enough to light the GREEN LED and released before the next LED lights Make sure the RED LED is not double blinking If it is memory is full and you need to erase the data see 4 6 Make sure the Simple Logger is properly configured so that you have Storage Rate Recording Period and at least one Measurement Channel specified Symptom Simple Logger does not respond to a button press even with fresh batteries installed Cause Correction Make sure that the instrument is not OFF Press the button for a short duration less than 0 5 seconds If the LEDs do not flash then the instrument is OFF Turn the instr
11. circuits Cat Il For measurements performed on circuits directly connected to the electrical distribution system Examples are measurements on household appliances or portable tools Cat Ill For measurements performed in the building installation at the distribution level such as on hardwired equipment in fixed installa tion and circuit breakers Cat IV For measurements performed at the primary electrical supply lt 1000V such as on primary overcurrent protection devices ripple control units or meters 1 3 Receiving Your Shipment Upon receiving your shipment make sure that the contents are consistent with the packing list Notify your distributor of any missing items If the equipment appears to be damaged file a claim immediately with the carrier and notify your distributor at once giving a detailed description of any damage Save the damaged packing container to substantiate your claim 1 4 Ordering Information Simple Logger II Model 1 261 eeaeee Cat 2126 05 1 Channel TRMS 600VAc Includes USB cable DataView CD ROM 2x1 5V AA cell alkaline batteries 1 set of leads one set of alligator clips user manual and warranty card 1 4 1 Accessories and Replacement Parts Lead Set of 2 Color coded 5 ft w color coded alligator clips Rated 600V Cat IV 15A Cat 2140 62 Order Accessories and Replacement Parts Directly Online Check our Storefront at www aemc com s
12. d Pressing the RESET button when the logger is ON will cause the instru ment to reset its internal clock and set the memory available to zero The RESET button should only be pressed as a last resort If the logger is not responding to a button press make sure the unit has sufficient battery power If the battery voltage is below 1 7V the unit will not respond to a button press In this condition pressing the RESET button will not restart the unit but will cause it to reset the internal clock WARNING In an effort to preserve recorded memory the instrument s memory will be marked as full when the RESET occurs Download any desired session then erase the memory before starting a new recording 18 Simple Logger Model L261 Event Pressing the RESET Button while Recording not recommended The recording session ends and the GREEN LED changes from a double blink to a single blink The RED LED double blinks to indicate that the memory is full Some portion of recorded data will be lost Sample data is buff ered and assembled into small packets before it is written to Flash Data that has not yet been written to Flash will be lost Event Pressing the RESET Button when a Recording has Ended The GREEN LED single blinks The unit indicates that the memory is full double blinking RED Event The Logger is Waiting for a New Recording Session If the RESET button is pressed when a recording has been schedule
13. d the logger will not start recording at the previously programmed date and time The unit indicates that memory is full double blinking RED A NOTE The resumption of the logger operation in the above situations assumes that the RESET button cleared the fault s The logger will not resume normal operation if the fault condition still exists Simple Logger Model L261 19 CHAPTER 5 MAINTENANCE Use only factory specified replacement parts AEMC will not be held responsible for any accident incident or malfunction following a repair done other than by its service center or by an approved repair center 5 1 Changing the Batteries A WARNING Turn the unit off before changing the batteries or loss of recorded data may occur Disconnect the unit from any voltage measurement points before opening the rear cover to change the batteries Remove the screw from the battery cover Slide off cover to remove Replace with only 1 5V AA alkaline batteries then replace cover Press the PRESS button for 2 seconds to turn ON NOTE It is recommended to store the unit with the batteries in it to preserve the internal clock If the instrument is stored without the batteries installed the internal clock will need to be reset using the Simple Logger II Control Panel software once the batteries are installed An additional memory backup capacitor is used to provide backup power while the main batteries are being changed This
14. d and may be altered to fit the users needs see the Configuring the Simple Logger II section inside the DataView user manual Once a configuration is written to the instrument the logger will no longer need to be connected to DataView to start the configured recording When data is stored in the memory the user may download the informa tion onto a hard disk see the Downloading Recorded Instrument Data section inside the DataView user manual 4 4 1 Starting a Recording Session A NOTE A new recording cannot be started if the memory is full Connect the instrument to the measurement source Make sure the logger is in STANDBY mode see 4 3 Press and hold the PRESS button When the START GREEN LED lights up release the button 4 Verify that the GREEN LED double blinks to ensure that the logger is recording Simple Logger Model L261 13 4 4 2 Stopping a Recording Session 1 Press and hold the PRESS button When the STOP ORANGE LED lights up release the button 2 The GREEN LED will change from a double blink to a single blink indicating STANDBY mode The data will be retained even if the instrument is turned OFF The recorded data is stored in Flash memory meaning that it will be maintained even in the absence of batteries The recorded data may be downloaded to a computer 4 5 Downloading Recorded Data Recorded measurements stored in the instrument are transferred to a database on a hard d
15. e Data Logger 1 Computer Figure 4 1 The logger can be connected to the computer during a recording session however additional battery drainage will occur to support the active USB connection 4 3 Turning the Unit On Turn the instrument ON by performing one of the following e Press and hold the PRESS button for approximately 2 seconds Release the button after all five LEDs light up in unison The unit is now in the STANDBY mode Green LED single blinks NOTE if the LEDs light in sequence the instrument is already ON In this case continue to hold the PRESS button until all LEDs are OFF Connect the instrument to a USB port on your computer and establish communication with the instrument using DataView The logger will remain ON while a communication link with DataView is active pro vided sufficient battery power is available during the communication session 12 Simple Logger Model L261 The instrument contains protection circuitry to prevent it from being turned on when the battery voltage is below 1 7V There are two thresholds for the battery voltage The first is used to indicate low battery The low battery indicator will blink when the battery voltage drops below 1 8V The second is used to determine when to terminate recording and turn the unit off The shutdown threshold is when the battery voltage drops below 1 7V 4 4 Recording Data A NOTE The Simple Logger is factory configure
16. emory Filled During Recording Session If the logger is recording using the Start Stop mode and memory is filled before the Recording Session has finished the session will end The following happens e The RED LED double blinks The GREEN LED single blinks At this time The memory can be downloaded and cleared Anew recording can be started or scheduled once the memory is cleared Event Battery Power is Insufficient for a Full Recording Duration If the battery voltage drops below 1 7V the following will occur The Recording Session will terminate The Data will be saved The GREEN and RED LED will turn OFF The logger continues to record until the battery voltage drops below 1 7V Pressing the PRESS button may not turn the unit ON at all The battery voltage may rise slightly after the unit turns itself off In this event the unit may turn on momentarily as a result of a button press The batteries must be replaced before the recorded session s can be downloaded from the instrument A NOTE Replacing the batteries while the unit is OFF will not result in the loss of data memory The internal backup capacitor will maintain the clock and memory while the main batteries are being replaced If the battery level falls below the usable level or if the batteries have been removed for an extended period of time the clock time will be lost However the recorded memory will be maintained since it is stored in Flash memory
17. isk via the download command in the Simple Logger II Control Panel For complete instructions on downloading data see the Downloading Recorded Instrument Data section inside the DataView user manual that shipped with the instrument 4 6 Erasing Data from Memory Erasing data from the instrument s memory can only be performed while in the STANDBY mode There are two ways to erase the memory Erasing the Memory using the PRESS Button 1 Press and hold the PRESS button When the ERASE RED LED lights up release the button This will arm the instrument for an erase operation when not in record mode While armed to erase memory the RED LED will blink at a fast rate for a period of five seconds 2 Press the PRESS button for another 0 5 seconds to complete the erase operation A NOTE If the button is not pressed within five seconds of arming the erase operation will automatically disarm and memory will be maintained For this reason if you do not intend to erase memory simply wait until the RED LED stops blinking at the fast rate 14 Simple Logger Model L261 Erasing the Memory using DataView 1 Connect the instrument to the computer then open the Simple Logger II Control Panel 2 Select Erase Memory from the Instrument Menu 3 A dialog box will appear asking to confirm the erasure of instrument memory Select Yes to confirm or No to cancel the operation 4 7 Data Storage The logger captures trend me
18. nd wait for either another button press or the recording start time to arrive if a recording is scheduled While in the low power STANDBY mode the LEDs will not blink Abutton press of 0 5 seconds will return the unit back to the normal STANDBY mode Event Recording with Memory Cleared When a recording starts the logger will continue to record until one of the following occurs The Session is complete The Memory is full and the recording mode is Start Stop The PRESS button is pushed until the STOP ORANGE LED lights up and is released before the next LED lights The Stop Recording command from the Simple Logger II Control Panel is sent to the unit The battery voltage falls below 1 7V Event Recording with a Partial or Full Memory If the RED LED is double blinking the memory must be cleared before any further recording can be performed If the RED LED is single blinking prior to starting a New Recording Ses sion the memory is partially full To save clear or check memory availability use the Simple Logger II Control Panel software There may be instances where the GREEN LED is also double blinking indicating that the logger is still recording The user can choose to stop the Recording Session and download the saved session s and or clear the memory A NOTE The logger memory cannot be erased while in the Record mode The recording must be stopped first 16 Simple Logger Model 1 Event M
19. nt is OFF it will momentarily turn ON for each scheduled sample interval This operation will make sure that a scheduled recording will begin and sample intervals will be stored even while the instrument is OFF The control operation of each LED is as follows GREEN Starts a recording ORANGE Stops a recording YELLOW Clears the alarm state RED Erases the memory BLUE Turns the instrument OFF 10 Simple Logger Model L261 The status function of each LED is as follows STATUS Logger is turned OFF or in Low Power Standby state Logger is in Standby Mode and not recording Logger is in Record Mode STATUS Logger is not in an Overload condition One or more inputs are in an Overload condition STATUS No alarm has been seen on any input At least one channel has seen an alarm at least once At least one channel is currently in an alarm condition STATUS No data in memory Memory is partially filled Memory is full STATUS Battery voltage is above 1 8 volts Battery voltage is below 1 8 volts GREEN LED OFF LED Single blink LED Double blink ORANGE LED OFF LED Single blink YELLOW LED OFF LED Single blink LED Double blink RED LED OFF LED Single blink LED Double blink BLUE LED OFF LED Single blink To determine whether the unit is OFF or in Low Power Standby state press the PRESS button for 0 5 seconds If the LED blinks it is not OFF A Note Overload occurs when any input
20. pair or replace the faulty material REGISTER ONLINE AT www aemc com Warranty Repairs What you must do to return an Instrument for Warranty Repair First request a Customer Service Authorization Number CSA by phone or by fax from our Service Department see address below then return the instrument along with the signed CSA Form Please write the CSA on the outside of the shipping container Return the instrument postage or shipment pre paid to Ship To Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 800 945 2362 Ext 360 603 749 6434 Ext 360 Fax 603 742 2346 or 603 749 6309 E mail repair aemc com Caution To protect yourself against in transit loss we recommend you insure your returned material NOTE You must obtain a CSA before returning any instrument 24 Simple Logger Model L261 EJAEMC INSTRUMENTS 05 07 99 MAN 100311 v1 Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 603 749 6434 Fax 603 742 2346 www aemc com
21. ple rate and recording length This unique recording mode provides the opportunity to continuously record over long periods of time by reducing the stored sample resolution of the oldest data and maintaining matching resolution for the newest data Each time the memory fills up using XRM every other of the oldest stored samples is discarded making room for newer samples This process continues until the recording is manually stopped A memory backup capacitor provides backup power while the batteries are being changed This backup capacitor will maintain the instrument for up to 10 seconds without batteries installed After 10 seconds the date time and configuration will need to be reset no data will be lost If the unit is connected to DataView via a PC the battery life is 100 hours regardless of the storage rate 8 Simple Logger II Model L261 3 2 Mechanical Dimensions 4 94 x 2 75 x 1 28 125 x 70 x 32mm Weight with battery 6 4 oz 181 grams Case UL94 V0 Vibration IEC 68 2 6 1 5mm 10 to 55Hz Shock IEC 68 2 27 30G Drop IEC 68 2 32 1m 3 3 Environmental Operating Temperature 14 to 122 F 10 to 50 C Storage Temperature 4 to 140 F 20 to 60 C Relative Humidity 0 to 85 95 F 35 C Non condensing Altitude 2000m 3 4 Safety 600V Cat III 300V Cat IV All specifications are subject to change without notice Simple Logger Model
22. s dropped sufficiently low to not be able to power the instrument Zoom The ability to select a section of the graph and magnify it for better readability USB Universal Serial Bus a communications port used to access the Data Logger via a computer program Dataview 22 Simple Logger Model L261 Repair and Calibration To ensure that your instrument meets factory specifications we recommend that it be scheduled back to our factory Service Center at one year intervals for recalibration or as required by other standards or internal procedures For instrument repair and calibration You must contact our Service Center for a Customer Service Authorization Number CSA This will ensure that when your instrument arrives it will be tracked and processed promptly Please write the CSA on the outside of the shipping container If the instrument is returned for calibration we need to know if you want a standard calibration or a calibration traceable to N I S T Includes calibration certificate plus recorded calibration data Ship To Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 800 945 2362 Ext 360 603 749 6434 Ext 360 Fax 603 742 2346 or 603 749 6309 E mail repair aemc com Or contact your authorized distributor Costs for repair standard calibration and calibration traceable to N I S T are available NOTE You must obtain a CSA before returning any
23. tore for availability 4 Simple Logger Model L261 CHAPTER 2 PRODUCT FEATURES 2 1 Description The Simple Logger II Model L261 is a one channel recording device powered by an alkaline battery pack Line tracking is performed such that 64 samples over one line cycle are taken Frequency tracking is performed over the range of 2Hz around the nominal line frequency 50 or 60Hz Harmonic measurements are calculated from these 64 samples Harmon ics are only available from the Simple Logger Control Panel within the DataView application The Simple Logger II records TRMS at a rate of up to eight times per second The measurement process is performed no more than eight times per second TRMS calculations are performed on a single line cycle This means that the input s are ignored between measurement intervals The main advantage of the logger is its ability to perform a variety of recording tasks with easy and intuitive setup from a computer using DataView software Analog information on the input is sampled and converted to a digital signal This digital signal is processed and stored along with scale and time information An optically isolated Universal Serial Bus USB port provides for the transfer of data from the instrument s internal memory to the computer for analysis Figure 2 1 shows a block diagram of the logger Isolated Power Source Data Battery Storage
24. ument ON by pressing the PRESS button for two seconds The LEDs will light solid once the instrument has turned on and you may release the button at that time Simple Logger Model L261 21 APPENDIX 8 GLOSSARY Some general terminology associated with the data collection process is listed here for convenience Bps Bits Per Second a unit of signal transfer speed equal to the number of elements per second The Simple Logger II transfers data at the rate of 115200 bps Button An actual key on the logger or computer keyboard or a soft key in the program on the computer screen Data logger A device used to sample and store electrical signals representative of physical phenomena such as temperature pressure and flow for long periods of time in an unattended environment Download The process of transferring data from the logger to the computer Hz Hertz a unit of measure of frequency equivalent to cycles per second Input output a device or port capable of sending or receiving digital information Port A name given to any connector allowing input or output of information Processor A computing device used to calculate and run a set of instructions Recording session A recording session is defined as the time and data contained within the starting and ending of a recording Resolution The number of bits in which digitized values will be stored Ride through Time during which the AC line voltage ha
25. use or service this instrument Never exceed the maximum working voltage ratings given NEVER open the back of the instrument while connected to any circuit or input Always inspect the instrument accessories and leads prior to use Replace any defective parts immediately with factory parts 1 1 International Electrical Symbols Signifies that the instrument is protected by double or reinforced insulation Indicates a WARNING and that the operator must refer to the user manual for instructions before operating the instrument Failure to follow or carry out any instructions preceded by this symbol in the user manual may result in personnel injury or damage to the instrument and installations Risk of electric shock The voltage at parts marked with this symbol may be dangerous Refers to a type A current sensor This symbol signifies that application around and removal from HAZARDOUS LIVE conductors is permitted Refers to a type B current sensor Do not apply around or remove from HAZARDOUS LIVE conductors without additional protective means de energizing the circuit or wearing protective clothing suitable for high voltage work eNe P Bj In conformity with WEEE 2002 96 EC Simple Logger Model L261 3 1 2 Definition of Measurement Categories Cat For measurements on circuits not directly connected to the AC supply wall outlet such as protected secondaries signal level and limited energy
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