User`s Manual Clamp-on Power Datalogger Model - Cole
Contents
1. 16 Low battery calar E 17 Bargraph display AD cam cose carini KB 18 Bargraph display scale A Fa op Ke 19 Peak Hold 19 8 U UY ELI LY ie 20 Average reading 19 Ea Ka Aa 21 Maximum reading 16 hi 22 Minimum reading i Mee oy Gamma e Measurements Measurement Considerations and Precautions i 2 3 Ensure that the selected range on the meter matches the measurement to be taken If the measured current is higher than the selected current range for long periods overheating may result compromising the safety of the meter s circuitry Do not measure current on high voltage conductors gt 600V DC Voltage Measurements WARNING Ensure that all test leads are disconnected from the meter terminals 1 2 3 4 Set the rotary function switch to the V position Press the yellow DC AC Hz mode button to select DC Connect the black and red test leads to the COM and terminals respectively Connect the test leads to the circuit under test and read the displayed value AC Voltage Measurements WARNING The maximum input for the AC Voltage range is 600Vrms Do not attempt to take voltage measurements that exceed 600Vrms Shock hazard or meter damage could result at higher voltages 1 2 3 4 Set the rotary function switch the V position Press the yellow DC AC Hz button to select AC Connect the black and red test leads to the COM and terminals respectively Connect the test leads to the c2. and then to the L1 conductor 3 Connect the black test lead to the meter s COM input jack and then to the G conductor 4 Clamp the meter around the L1 conductor 5 Note the Wiic reading displayed on the LCD for later use Measure W 26 as described in steps 6 9 6 Connect the red test lead to the meter s red voltage terminal and then to the L2 conductor 7 Connect the black test lead to the meter s COM input jack and then to the G conductor 8 Clamp the meter s jaws around the L2 conductor 9 Note the Wi2c reading Now use the WL16 amp Wi2c readings noted above in the equation shown below W168W W L1G W L2G LI G 110N L2 G 110V L1 L2 220V LI G21 10V L2 G 110V I L2 220V W163W W LIG W L2G 3 phase 3 Wire Measurements 3 3 wire Balanced Measurements W336 Wrs Wis VAR Sqr 3 W rs W1s VA39 Sqr Wag VAR39 Miscellaneous formulae s _V A A DEE 2 E _Kw KVA KVA 5 5 KVAR KVAR KVA KW Power Factor PF KVA KVAR is a calculated value and its accuracy greatly depends on the accuracy of V A KW and PF if it is close to 1 For better accuracy when PF is greater than 0 91 lt 25 measure the phase angle and obtain KVAR using the following equation for a pure sine wave KVAR KVA sino 34 4wire Measurements W3 Wi W2 W3 10 Optional 3 Phase Adapter 382061 Connect the adapter to the bottom of the meter over the input terminals Use
3. of this adapter permits three phase measurements of 1 True Power KW 2 Apparent Power KVA 3 Power Factor PF Cosine of Phase Angle Set the Clamp Meter s rotary switch to KW KVA or COS position depending upon which parameter is to be measured Refer to the diagram and equations below 36 3wire Unbalanced Measurements We W W2 W3 VA34 VA VA2 VA3 We en E 11 Maintenance Battery Replacement Warning To prevent electrical shock power down the clamp meter and disconnect the test leads before removing the meter s back cover When the 9V battery voltage falls to a critical level the battery symbol will appear on the LCD Replace the battery as follows 1 Set the range switch to the OFF position 2 Remove the 3 rear screws and remove the meter s rear cover 3 Replace the 9V battery and reinstall the back cover Cleaning Warning To avoid electrical shock or damage to the meter do not permit water inside the case Periodically wipe the case with a damp cloth and mild detergent Do not use abrasives or solvents Calibration and Repair Services Extech offers complete repair and calibration services for all of the products we sell For periodic calibration NIST certification or repair of any Extech product call customer service for details on services available Extech recommends that calibration be performed on an annual basis to insure calibration integrity Copyright 2000 Extech In
4. 00V 10A 0 00 to 0 30 Minimum voltage 100V AC Minimum Current 20A AC DC Current Range Resolution Accuracy 1000 2 5d AC Current True RMS Range Resolution Accuracy 1000 2 10d 40 to 400Hz Peak Indication Range Resolution _ Accuracy Acquisition time 1000A E 2 5 100 600V DC Voltage Input Resistance 600V 100mV 0 75 2d 1MQ AC Voltage True RMS ge Resolution Accuracy Frequency 600V 100mV 1 2 10d 40 to 400Hz 1MQ Resistance Range Accuracy 10ko E 1 5d Range Resolution Accuracy _ Sensitivit TKHZ x 0 5 5d TOV or 10A Overload protection kW kVA PF DCV ACV Peak ACV 750Vrms DCA ACA Peak ACA 1100A Continuity Diode Resistance 660Vrms 750Vrms or 1100A Crest Factor ACA ACA 5 For sinusoidal waveforms Additional errors for non sinusoidal signals are 1 to 3 0 5 3 to 5 3 5 to 7 6 Audible Continuity Audible tone sounds when resistance is less than 1009 10 Description Meter 1 Transformer jaws 2 Jaw open trigger 3 Data Hold button 4 Range selector switch 5 DC AC Hz Continuity Diode mode button i 6 MIN MAX AVG PEAK button Ni Ha 7 Relative mode button eo 8 Datalogging Record button eo 9 LCD Display ri 10 PC Interface jack nda 11 COMinputjack 12 V Q Hz input jack Display Indicators 13 Relative mode 14 Data Hold 15 Negative polarity
5. Installation Category III e Pollution degree 2 e Altitude up to 2000 meters e Indoor use only e Relative Humidity 80 max e Ambient temperature 32 to 104 F 0 to 40 C Maximum voltage 600Vrms Operational design Dual slope integration Display 4 digit 9999 count LCD display Bargraph 40 segment display Over range Indication LCD displays OL Low battery Indication Battery symbol display for low operating voltage Sampling rate 10 times per second bargraph 2 times per second LCD Auto power off After 30 mins of inactivity Power supply 9V Alkaline Battery 10 hour approximate battery life Jaw size Cable 646mm 1 8 Operating Temperature 32 to 104 F 0 to 40 C Operating RH lt 80 RH non condensing Storage Temperature 14 to 140 F 10 to 60 C Dimensions 10 2 x 3 7 x 1 8 260 x 93 x 45mm Weight 16 6 oz 470g with battery approx Accessories 9V battery Test Leads Carry Case Optional Accessories PC Software and Cable 382062 3 Phase Adapter 382061 Function Specifications Accuracy reading no of digits at 64 to 82 F 18 to 28 C with RH lt 80 True Power kW 2kW to 600kW 0 1kW 2 5d 40 to 400Hz Minimum voltage 100V AC Minimum Current 20A AC Apparent Power kVA g 2kW to 600kVA 0 1kVA 2 5d 40 to 400Hz Minimum voltage 100V AC Minimum Current 20A AC Cos q Power Factor Resolution Accurac Frequency Range Sensitivit _ Range 0 30 to 1 00 0 01 10Hz to 60Hz gt 1
6. User s Manual EXTECH Clamp on Power Datalogger Model 382060 WARRANTY EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment a six month limited warranty applies on sensors and cables If it should become necessary to return the instrument for service during or beyond the warranty period contact the Customer Service Department at 781 890 7440 for authorization A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This warranty does not apply to defects resulting from action of the user suchas misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Introduction Congratulations on your purchase of the Extech 382060 True RMS Clamp on Power Meter This device measures True RMS Voltage Current Power Frequency Resistance Continuity and Phase Angle The built i
7. ction switch the A position 2 Press the yellow DC AC Hz button to select Hz per display symbol 3 Follow the directions for AC Current measurements above 4 The meter detects the frequency of the current for the conductor under test Note For proper frequency measurements the current through the jaw should be at least 10A minimum threshold Kilowatt KW and Apparent Power KVA Measurements WARNING The maximum input for the AC Voltage range is 600Vrms Do not take voltage measurements exceeding 600Vrms Shock hazard and meter damage could result 1 Set the rotary function switch the KW or KVA position LOAD 4N 192 2 Connect the black and red test leads to the COM ii es and terminals respectively and then in parallel E Y with circuit under test 3 Clamp the jaw around one conductor ensuring that the jaws are completely enclosed around conductor 4 Read the displayed value Notes 1 The sign printed on the jaw must face the power source for correct readings 2 For 3 phase unbalanced systems use the optional 3 phase adapter 380261 Refer to Appendix C Power Factor PF Measurements WARNING The maximum input for the AC Voltage range is 600Vrms Do not attempt to take voltage measurements that exceed 600Vrms Shock hazard and meter damage could result at higher voltages 1 Set the rotary function switch the Cos 6 position LOAD I 172W 2 Connect the black and red test leads
8. ion and return the meter to normal operation press and hold the MIN MAX key for 2 3 seconds until the audible tone sounds Note Peak Hold is only available for Current and Voltage functions MIN MAX AVG functions do not apply to COS and KVA parameters Relative Mode This meter has to ability to store a reference value so that measurements can be displayed relative to the reference value To store a reference value and use the relative mode 1 Press the REL key when the desired reference value is on the display the triangular relative symbol will appear on the LCD 2 All subsequent measurements will be displayed relative to the reference value For example if 100 is displayed at the time of the REL key press and the next measurement is 105 the LCD will read 5 105 100 5 3 To exit the Relative mode press and hold the REL key for 2 3 second until the audible tone sounds Datalogging and the RS 232 PC Interface This meter has the ability to store 1600 measurements Stored data can be transferred from the meter to a PC using the optional PC Interface kit 382062 Data can then be exported to and manipulated in spreadsheet word processor or graphical software programs The PC Interface kit also permits the user to operate the meter remotely from the PC Instructions for the RS 232 PC Interface are included with the kit The following steps detail how to record data 1 To start recording data press the RECORD key RECORD will appea
9. ircuit under test and read the displayed value Frequency Measurements Voltage WARNING The maximum input for the AC Voltage range is 600Vrms Do not attempt to take voltage measurements that exceed 600Vrms Shock hazard or meter damage could result at higher voltages 1 Set the rotary function switch the V position 2 Press the yellow DC AC Hz button to select Hz 3 Connect the black amp red test leads to the COM and terminals respectively 4 Connect the test leads to the circuit under test and read the displayed value Note The voltage must be at least 10V for proper frequency measurements AC and DC Current Measurements WARNING Ensure that all test leads are disconnected from the meter terminals 1 Set the rotary function switch to the A position e ee i 2 Press the yellow DC AC Hz mode ES button to select DC or AC per the be Ent display symbol sie ame 3 Press the trigger to open the meter este asoa jaws then snap them open closed several times to dissipate any CORRECT INCORRECT residual magnetic fields Clamp the jaws around the conductor under test The most accurate reading can be obtained by keeping the conductor as near to the centering marks of the jaws as possible The direction of current must correspond to the indication pointer on the jaw 4 Ensure that the jaws are completely closed around the conductor 5 Read the displayed value Frequency Measurements Current 1 Set the rotary fun
10. n datalogger stores up to 1600 readings Optional PC software permits meter to PC data transfers An optional 3 phase adapter provides kW kVA or PF measurements of unbalanced loads Careful use of this meter will provide years of reliable service Safety Read the following safety information carefully before using or servicing the meter Do not exceed the maximum input limits published in the specifications below Never measure current while the test leads are inserted in the meter s input jacks Do not use the meter or the test leads if either appears damaged Use extreme caution when working near bus bars or bare conductors Built in safety protection may be impaired if meter is not used per user s manual Use caution when working with voltages above 60VDC or 30VAC RMS Before resistance continuity measurements disconnect power loads from the circuit A This symbol adjacent to another symbol or terminal indicates the user must refer to the manual for further information This symbol adjacent to a terminal indicates that under normal use hazardous voltages may be present O Double insulation WARNING This indicates that a potentially hazardous condition which if not avoided could result in death or serious injury CAUTION This indicates that a potentially hazardous condition which if not avoided could result in injury or damage to the meter Specifications General Specifications Environmental conditions e
11. nect the black and red test leads to the COM and terminals respectively 2 Set the rotary function switch the diode position 3 Press the yellow mode select switch to select diode test per the display icon 4 Connect the red test lead to the anode side of the diode and the black test lead to the cathode side of the diode 5 Read the forward voltage value of the diode on the LCD The value for a good diode should be 0 3 to 0 7VDC 6 Reverse the test lead connection to the diode the reading should indicate an open circuit if the diode is good Features Data Hold To hold a displayed value press the violet colored data hold button above the rotary switch The reading will freeze and the A symbol will appear on the LCD To release the display and return the meter to normal operation press the data hold button again Minimum Maximum Average and Peak Readings 1 To begin a session first select the desired function using the rotary select switch 2 Press the MIN MAX button once The MIN icon will appear on the display and the meter will begin keeping track of the lowest highest average and peak readings 3 Pressing the MIN MAX key repeatedly scrolls through the MIN minimum MAX maximum AVG average and PEAK peak capture readings since the measurement session began The meter will continue to monitor the session keeping track of the minimum maximum etc until the session is halted 4 To exit the measurement sess
12. r on the LCD the meter will begin recording data one reading per second Note Using the optional Data Acquisition software the sample rate is adjustable To stop recording press the RECORD key again 2 When the meter s memory is full the RECORD display icon will flash 3 To delete data from the meter s memory hold the RECORD button while powering up the meter Do not release the RECORD button until the CLEP display appears Note Press the RECORD key to stop recording before shutting down the meter Powering off the meter before pressing the RECORD key to stop recording prohibits the datalogger from marking the address of the last data record The datalogger updates the last record address every 100 records Appendices True RMS Measurement Notes The Model 382060 is a True RMS responding device that can correctly measure non sinusoidal waveforms such as triangle square and distorted sine waves Conventional average sensing meters convert the measurement signal into an average value and then multiply the average by 1 1 If the measurement signal is anything but a true sine wave the reading will be incorrect Single Phase 3 Wire Measurements To perform this test two separate measurements are required W 1c and Wuze refer to the diagram below Measure W ic first steps 1 5 L1 L2 G must be correctly identified 1 Set the rotary function switch to the KW range 2 Connect the red test lead to the meter s red voltage terminal
13. struments Corporation All rights reserved including the right of reproduction in whole or in part in any form 382060 User s Manual Version 1 3 Revision Date 31 August 2000 oat A Tech Support Hotlines 781 890 7440 ext 200 extech extech com www extech com 12
14. to the COM A and terminals respectively and then in parallel te y with the circuit under test pa i 3 Clamp the jaw around one conductor ensuring i that the jaws are completely enclosed around the conductor _ 4 Read the displayed value Ti 5 Ifthe displayed value is negative the reading is capacitive current leads voltage If the displayed value is positive the reading is inductive current lags voltage Notes The sign printed on the jaw must face the power source for correct readings Resistance Measurements WARNING Remove power from the circuit under test and discharge all capacitors before performing resistance measurements 1 Set the rotary function switch the U position 2 Connect the black and red test leads to the COM and terminals respectively 3 Connect the test leads to the circuit or component under test 4 Read the displayed resistance value Continuity and Diode Tests WARNING Remove power from the circuit under test and discharge all capacitors before performing resistance measurements Continuity 1 Connect the black and red test leads to the COM and terminals respectively 2 Set the rotary function switch the continuity position 3 Press the yellow mode select switch to select continuity per the display icon 4 Connect the test leads to the circuit or component under test 5 If the resistance of the circuit or component is lt 100Q an audible tone will sound 1 Con
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