User's Manual Datalogging AC/DC Power Clamp
Contents
1. P 7 M Figure 8 11 382068 EU EN V4 0 12 11 9 True 5 POWER CLAMP METER WL123 HOLD 384 lag 806 0 20 40 60 0 100 Y n ff SN ZERO N N 2 CAT II x Figure 10 12 382068 EU EN V4 0 12 11 A Measure Wn 1 1 refer to figure 6 1 With the jaw enclosure empty turn the meter on by setting the rotary switch to the 34W position 2 Insert the test leads into the input terminals black lead to the COM terminal and red to Connect the black lead s probe end to the neutral line Connect the red lead s probe end to the first phase eg R or L1 3 4 5 Clamp on to the same phase as the red test lead eg R or L1 6 The meter will automatically select the proper range 7 Wait until the reading is stable about 6 seconds then press the READ button WL1 will disappear WL2 will appear prompting the user to take a Ws 12 2 measurement B Measure Ws 2 PFs 2 refer to figure 7 1 Disconnect the red test lead from the phase where the jaws are clamped 2 Connectthe red test lead to the second phase eg S or L2 3 Clamp onto the phase where the red test lead is connected eg S or L2 phase 4 The meter will automatically select the proper range 5 Wait until the reading is stable about 6 seconds then press the READ button WL22. DC and AC True Power Apparent Power Power Factor and True RMS Voltage Current amp Watts Status indication for Lead Lag and PF is included as well as dual displays of KW PF KVA PF Hz and V Hz The frequency of Voltage and Current measurements can be displayed also Datalogger and PC interface features are built into the meter The Datalogger Data Acquisition Software package is for exclusive use with the Model 382065 382068 Clamp on Power Datalogger Windows XP Vista Window s 7 32 bit and 7 64 bit operating systems are supported Users can download readings stored in the datalogger to a PC program sample rates for datalogging remotely monitor readings and save readings to ASCII files for export to spreadsheet and other programs Careful use will provide years of reliable service 2 382068 EU EN V4 0 12 11 Specifications General Specifications Main display Bargraph display Datalogger Peak hold Maximum voltage Meter power Battery life Low battery indication Auto power off Display update rate Jaw opening Operating temperature Operating Humidity Storage temperature Storage Humidity Dimensions Weight Accessories Range Specifications 4 digit 10 000 count multi function LCD 40 segment bargraph 4000 data point continuous logging 25 point manual logging with MIN MAX and Peak detect recording Built in detector captures positive and negative peaks to 1ms 600Vrms between any terminal and ea
3. True ms power cf SETER fp gt 0906 WL12 ig xw 52067 mae READ Figure 4 8 382068 EU EN V4 0 12 11 With the Clamp jaws empty turn the meter on by setting the rotary switch to the 363W position 12 will appear on the upper left side of the LCD prompting the user to take Wes 1211 measurement 1 2 3 4 5 6 Insert the test leads into the input terminals black to COM terminal and red to Select one phase eg S or L2 as COM and connect the probe end of the black lead to that phase eg S or L2 Connect the probe end of the red test lead to the second phase eg R or L1 Clamp the meter onto the same phase as the red test lead eg R or L1 The meter will automatically select the proper range Wait until the reading is stable about 6 seconds and then press the READ button WL23 will appear prompting the user to take a measurement of W312 B Measure Wis 312 refer to figure 5 gU Disconnect the red test lead from the phase where the clamp is connected Connect the red test lead to the third phase eg T or L3 Clamp onto the third phase where the red test lead is connected eg T or L3 The meter will automatically select the proper range Wait until the reading is stable about 6 seconds and then press the READ button C The power clamp will process these measurements and display the result WL123 appears in the upper left corner of the LCD
4. and 393W power measurement is displayed in watts this value is now stored in meter memory The following equations are provided for your information Ws sw Westra Wrsqauz KVA3 3W W2303w KVAR KW 6 PF3 3w KVA393W Notes 1 Once a phase is designated as common COM it should remain as such in all subsequent measurements For example if the S or L2 phase is selected S or L2 phase is connected to COM during the measurements of Wrs 1 2 and Wrs Wia2 in 3W unbalanced power The sign printed on the jaw must face the power source In 3 3 unbalanced power measurements if either WRS WTS is negative connection error ensure that all test lead and clamp connections are correct 9 382068 EU EN V4 0 12 11 gt ie EP w True BNS POWER CLAMP METER WE WL 23 QOBB5 sow 5820 RUD Je Figure 5 RMS True POWER CLAMP METER 123 d103 0 0 40 60 80 100 hii ni m a o n e READ AN RECORD PEAK ZERO 600 CAT III Figure 6 10 382068 EU EN V4 0 12 11 3 4 AC DC Power Measurement i N 384W mtd Figure 7 5 12 ages WL 2 aw B e
5. appear on the LCD 3 To exit the Record mode press and hold the RECORD button until the RECORD display icon disappears 4 Readings can only be transferred to a PC with optional Windows software and interface cable Instructions for use are provided with optional software hardware kit Clearing Datalog Data 1 Turn the meter off and hold down the RECORD button while turning the meter on 2 Release the RECORD key when CLR appears The datalog memory is now clear Maintenance Battery Replacement Warning To prevent electrical hazard or shock turn off the clamp meter and disconnect the test leads before removing the back cover When the 9V battery expires the LCD will display the battery icon To replace the battery 1 Setthe Range switch to the OFF position 2 Remove the meter s three rear screws and carefully open the meter housing 3 Replace the 9V battery and re assemble the meter housing Cleaning Periodically wipe the case with a dry cloth do not use abrasives or solvents Copyright O 2011 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 20 382068 EU EN V4 0 12 11
6. except for the nomenclature Two measurements are required and Wrs 126 A Measure Wrs refer to figure 11 1 With the Clamp jaws empty turn the meter on by setting the rotary switch to the 393W position Insert the test leads into the input terminals Connect the probe end of the black lead to ground 4 Connect the probe end of the red lead to the second phase eg L1 Clamp onto the second phase eg L1 6 The meter will automatically select the proper range 7T Wait until the reading is stable about 6 seconds and then press the READ button 8 WL23 will appear prompting the user to take the Wrs 128 measurement B Measure Wrs 2 refer to figure 12 Connect the red test lead to the L2 line de 5 The meter will automatically select the proper range True RMS POWER CLAMP METER Wrs M123 383W dg 0 20 40 60 80 100 READ f F F wn 5 RI ES MAX FED 5 PEAK ZERO lt NS A 600v CAT II m Figure 13 Disconnect the red test lead from the phase where the jaws clamped Clamp onto the L2 line where the red test lead is connected Wait until the reading is stable about 6 seconds and then press the READ button C The power clamp sums the two values displays the result and stores the 193W power measurement in memory Note the following equ
7. 0 Timid tated n D READ on eno PEAK ZERO av a Figure 3 WARNING Do not clamp on to a conductor when zeroing the jaw s residual magnetic field until the LCD reads zero 1 With the clamp jaws empty turn the clamp meter on by setting the rotary switch to the KW position refer to figure 3 Insert the test leads into the input terminals black lead to COM and red lead to Connect the probe end of the black test lead to the neutral line Connect the probe end of the red lead to the power line Clamp the meter onto the conductor where the red test lead is connected The power clamp will automatically select the appropriate range Read the Watt middle of display and PF top display values on the LCD o mw Press the READ button to scroll through the dual displays of KW PF V and KVA PF 7 382068 EU EN V4 0 12 11 Note When calculating the KVAR accuracy greatly depends V A KW measurement accuracy especially when PF is very close to 1 To get a more accurate value when PF is greater than 0 91 lt 25 use the following equation for a pure sine wave V A p 1000 KVA Apparent Power KVA KVAR Reactive Power KVAR KW Note The sign printed on the jaw must face the power source 393W AC DC Power Measurement
8. 5 Take a Voltage or Current measurement on a transient signal and the display will show the peak of the pulse The fastest surge the meter can detect is 0 1ms Data Hold 1 To freeze a displayed reading press the HOLD key 2 The HOLD icon will appear on the top of the LCD to let the user know that the meter is in the Data Hold mode 3 To return the meter to the normal operation mode press the HOLD key again The HOLD icon will extinguish 19 382068 EU EN V4 0 12 11 Datalogging Single mode 1 Single mode datalogging records one reading at a time 2 To record one reading press the RECORD key until one beep heard Note that if the button is held longer 2 beeps will sound and the meter will be in continuous mode see below The record number 1 through 25 or FULL will briefly appear on the LCD 3 The meter can store up to 25 readings When the memory is full FULL will display 4 To view the readings press and hold the READ button until two tones are heard The second tone is longer and louder than the first 5 Now use the yellow and Vkeys to scroll through the recorded readings Continuous mode for use with PC interface only 1 In continuous mode the meter records one reading after another automatically Up to 4000 records can be recorded 2 Press and hold the RECORD until two tones are heard not available 353W 394W function positions The meter will begin recording data and the RECORD icon will
9. User s Manual EXT INSTRUMENTS Datalogging AC DC Power Clamp on Meter Model 382068 1000A KW 303W 304W SUN PFlexilgo BERE nmi nma mtn SS REID n AW RECORD ZERO A Table of Contents Specifications General 5 3 Range 5 3 Safety Information 0 2 5 Meter and Display 6 Measurements AC DC Power 9 7 AC DC Voltage 16 AC DC Current 17 Resistance and Continuity 18 Diode Tests Min Max Mode Peak Detector OMG Maintenance Battery 21 Cleaning eee ae eee 21 Repair and Calibration Services 2 21 Tech Support 0 0 000 000600 nemen eene 21 Introduction Congratulations on your purchase of the Extech 382065 382068 Datalogging AC DC Power Clamp on Meter Measurements include
10. amp will automatically select the appropriate range Read the current and frequency values displayed on the LCD Note The current sensitivity for frequency measurements is 10A The frequency range is 45 500Hz If the frequency is less than 45 Hz the LCD will display 17 382068 EU EN V4 0 12 11 Resistance and Continuity Measurements Warning Before taking any in circuit resistance measurements remove power from the circuit under test and discharge all capacitors 1 Set the function switch to the Q position for both resistance and continuity measurements Connect the black test lead to the COM terminal and the red test lead to the terminal Connect the test leads to the circuit being measured and read the displayed resistance value Refer to Figure 16 4 For Continuity measurements an audible tone will sound when the reading is below 500 Figure 16 18 382068 EU EN V4 0 12 11 Diode and Continuity Measurements 1 Connect red test lead to terminal and black test lead to the COM terminal 2 Setthe range switch to the diode test position Connect the red test lead to the anode side and black test lead to the cathode side of the diode being tested 4 Read the forward voltage value on LCD The value for a good diode is 0 3VDC for germanium diodes and 0 7VDC for silicon diodes 5 f the test lead connection is reversed the digital reading should
11. ation Wrst WRrs 16 26 15 382068 EU EN V4 0 12 11 Current and Voltage Measurements DC and AC DC Voltage Measurements Figure 14 Warning The maximum input is 600V Do not attempt to take voltage measurements that exceed this limit electrical shock and damage to the clamp meter can result Set the rotary switch to the V position refer to figure 14 Insert the test leads into the input terminals black lead to COM and red to Connect the probe ends of the test leads in PARALLEL to the circuit to be measured The meter will automatically select the appropriate range and units AC or DC ak ON gt Read the voltage and frequency values displayed on the LCD Note The sensitivity for frequency measurements is 10V The frequency range is 45 500Hz If the frequency is less than 45 Hz the LCD will display 16 382068 EU EN V4 0 12 11 DC and AC DC Current Measurements ee True RMS POWER CLAMP METER 0600 0552 Q om RECORD mom Figure 15 Set the rotary switch to 1000 position refer to figure 15 2 For DC press and hold the ZERO button until a beep is heard to zero the reading the LCD will display while zeroing Press the trigger to open the jaw Fully enclose the conductor to be measured Do not allow a gap between the two jaw halves when measuring The cl
12. n 2 to 600V 0 5 5 1 0 45Hzto 500Hz 600Vrms Crest factor 3 for stated accuracy Peak indication Overload protection 20A 80A 0 1A 10 10 1100A 80A 1000A 0 1A 6 10 1100 Peak detect acquisition time 1ms Peak indication Overload protection 20V 80V 0 1V 10 10 600Vrms 80V 600V 0 1V 6 10 600Vrms Peak detect acquisition time 1ms Audible continuity Range Continuity circuit voltage protection 50 50 600Vrms Resistance Q Resolution Accuracy Overload voltage protection 1 5 600Vrms Diode test 00017 OOV pe Hz Volta e Overload 0 5 5 10V or 10A 600V 1100A 4 382068 EU EN V4 0 12 11 Safety Information 1 Read the following safety information carefully before attempting to operate or service the meter Read all operating instructions before use To avoid damage to the instrument do not exceed the published input limits Do not use the meter or test leads if they appear damaged Use extreme caution when working around bare conductors or bus bars Accidental contact with a conductor could result in electric shock Use the meter only as specified in this manual otherwise the protection provided by the meter may be impaired Use caution when working with voltages above 60VDC or 30VAC RMS Such voltages pose a shock hazard Before taking resistance
13. or continuity measurements disconnect the circuit from the main power supply and disconnect all loads from the circuit Safety Specifications Installation categories 111 Pollution degree 2 Altitude 2000m max Indoor use only Safety symbols Caution Refer to this manual before using the meter Dangerous voltages Meter is protected throughout by double insulation or reinforced insulation When servicing use only specified replacement parts C Complies with EN 61010 1 IEC 1010 2 32 5 382068 EU EN V4 0 12 11 Meter Description 1 Transformer jaws Jaw trigger Data Hold button Function selector Peak Detector READ button MIN MAX PEAK function button DC A W ZERO button 8 RECORD button Sive OEC Ob SOO Figure 1 10 11 12 13 14 15 16 22221 LCD display PC Interface Jack COM terminal VQ Hz terminal Low battery indication Analog Display Bargraph Display Units Symbols Figure WL123MEMREALP P HOLDMAX MIN 383W3g4W Hz PF lead lag DE on 888980 50 oO PVA ES e 0 20 40 60 80 100 MOV 382068 EU EN V4 0 12 11 AC DC Power Measurements AC DC 192W Power and Power Factor PF Measurements Ho C mV OFF ES KW oe True RMS POWER CLAMP METER 363 0886 e433 9 60 80 10
14. reflect an open circuit condition if the diode is good 6 Continuity measurement When the reading is below 50mV an audible tone will sound MIN MAX Recording Set the Function Switch to the Voltage or Current position 2 To record and view MIN and MAX values while taking measurements press the MIN MAX button 3 Now while measurements are being taken the display only the MIN or the MAX reading Use the MIN MAX button to toggle between MIN and MAX readings The LCD will display MIN or MAX as selected 4 To exit this mode press and hold the MIN MAX button until the MIN and MAX display icons disappear from the LCD Peak Detection Peak Detect mode is used to capture fast transients signals to 0 1ms such as those caused by motor startup surges or arc welding equipment switching 1 Set the Function Switch to the Current or Voltage position 2 Engage the Peak detector by pressing and holding the READ button until a short beep is heard Note that if the button is held longer a longer beep will sound and the meter will be in the datalogging view mode refer to the datalogging section for more info 3 The LCD will display when the Peak Detect mode is accessed correctly Use the PEAK button to toggle between captures positive polarity peaks and P MIN captures negative polarity peaks 4 To exit the Peak mode press and hold the PEAK button for two seconds until the P and icons disappear
15. rth ground 9V battery 30 hours approx Battery icon is displayed After 30 minutes approx 2 times per second Bargraph 5 times per second Digits once every 6 seconds for the KW function For Cables 1 8 46mm 32 to 122 F 0 to 50 C R H lt 80 non condensing 14 to 140 F 10 to 60 C RH lt 70 non condensing 10 24 x 3 66 x 1 77 260 x 93 x 45mm 1 Ib 450g Carrying case test leads and 9V battery Accuracy specs are reading of digits at 64 to 82 F 18 to 28 C and RH to 80 True ae amp Apparent power measurements 600KW Max lt 130 lt 150 30V A lt 150A 30V lt 150 As gt 150 enge protecion 2 5 45Hz to 500Hz 600 1100 V gt 130V A gt 150A 2 1 Power Factor Range Resolution Accuracy Frequency Range Sensitivity 0 30 to 1 00 0 001 4 10d 10Hz to 5KHz gt 100 10A 0 00 to 0 30 Not specified Minimum voltage 100V AC Minimum Current 20A AC Overload protection 2 to 1000A 1 5 5 1100 3 382068 EU EN V4 0 12 11 Resolution Accurac Frequency range Overload f 9 protection 2 to 1000A 1 5 5 45Hz to 500Hz 1100A Crest factor 3 for stated accuracy DCV Range Resolution Accuracy Input impedance Ovenoad protection ACV Range Resolution Accuracy 2 Input Frequency Overload impedance range protectio
16. will disappear WL3 will appear prompting the user to take a Wr Prt measurement C Measure Wr refer to figure 8 Disconnect the red test lead from the phase where the meter s jaws are clamped Connect the red test lead to the third phase eg T or L3 phase Clamp onto the phase where the red test lead is now connected eg T or L3 The meter will automatically select the proper range Wait until the reading is stable about 6 seconds and then press the READ button WL3 will disappear from the upper left hand area of the LCD 6 The meter will process these three sets of data refer to figure 9 and display the 394W power measurement WL123 will be displayed The 344W measurement will then be stored in memory The following equations are provided for your information Wsjaw Wray 2 2 KVAR23 4w PF3 4w KW spaw KVA3 4w Notes 1 The sign printed on jaw must face the power source 2 For 344W power measurements WR or WS and WT must be positive If any are negative check the test lead and clamp connections for polarity errors 13 382068 EU EN V4 0 12 11 193W Power Measurement 1 W 12 M 0885 sow GOOG iiti ttn Figure 11 Figure 12 14 382068 EU EN V4 0 12 11 193W power measurements are similar to unbalanced power measurement
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