Extech Instruments 382075 User Manual Download Page 18 | Manualshive

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382075 V2.2V 9/10

18

Battery Replacement

When the low battery symbol appears on the LCD, replace the 9V battery.

1.

Remove power to the meter and disconnect all test lead and jaw connections.

2.

Remove the screws from the bottom of the meter housing.

3.

Lift and remove the meter battery compartment.

4.

Replace the 9V battery.

5.

Replace the case and secure the screws.

Copyright © 2006 Extech Instruments Corporation

All rights reserved including the right of reproduction in whole or in part in any form.

www.ponpe.com

[email protected]

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Summary of Contents for 382075

Page 1: ...User s Guide 2000A True RMS 3 Phase Clamp Power Analyzer Model 382075 www ponpe com contact sale ponpe com ...

Page 2: ... contact information 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 such as misuse improper wiring operation outside of specification improper maintenance or repair or u...

Page 3: ...nts 8 3φ Balanced Power Measurements 9 3φ3W Unbalanced Power Measurements 10 3φ4W Unbalanced Power Measurements 11 1φ3W Power Measurement 13 Calculation of 3φ4W Power Factor PF 14 Improving the Power Factor of a 3φ4W Power System 14 Improving the Power Factor of a 3φ Balanced Power System 14 Improving Power Factor of a 1φ2W Power System 14 Phase Sequence Indication 15 Recording Data 15 Recalling D...

Page 4: ...s Improper use of this meter can cause damage shock injury or death Read and understand this user manual before operating the meter Always remove the test leads before replacing the battery Inspect the condition of the test leads and the meter itself for any damage before operating the meter Repair or replace any damage before use Use great care when making measurements if the voltages are greater...

Page 5: ...alanced mode pressing the NEXT button will display W PF KVA KVAR or V A data In the 3φ3W mode pressing the NEXT button stores the measured values WRS L1L2 and WTS L3L2 After two values are measured and stored the meter adds the two values displays the result with the symbol WRST to represent W3φ3W To start another W3φ3W measurement press the NEXT button again In the 3φ4W system mode press the NEXT...

Page 6: ...at exceeds these limits 1 Set the rotary switch to the Voltage position V 2 Insert the test leads into the input terminals 3 Connect the test leads in PARALLEL with the circuit to be measured 4 The power clamp will automatically select the proper range 5 Read the voltage and Frequency values displayed on the LCD NOTE The sensitivity for voltage frequency measurements is 1V and the frequency range ...

Page 7: ...Voltage V and Current A Dual Display Follow the instructions in the section entitled 3φ Balanced Power Measurements to monitor Voltage and Current simultaneously AC DC 1φ2W Power W and Power Factor PF measurements 1 Apply power to the meter with the jaws clear of any conductors 2 Set the rotary switch to the Watts function KW 3 If the watt reading is not zero press the DCA DCW ZERO button once to ...

Page 8: ...the test leads into the input jacks 4 Connect the test lead inserted in the COM black terminal to the reference line 5 Connect the test lead connected to the V red terminal to the voltage signal under test 6 Clamp on to the wire where the V red terminal is connected 7 If current signal is detected from the jaws the phase angle will be displayed in degrees on the LCD together with the frequency of ...

Page 9: ...To view the KVA and KVAR data press the NEXT button 12 To view V and A press the NEXT button again 13 To return to the W and PF display press the NEXT button again KVA KVAR Dual Display Follow steps 1 through 10 in the above section and press the NEXT button Wait approx 2 seconds for the LCD to display the KVA and KVAR Voltage V and Current A Dual Display Follow steps 1 through 10 in the above sec...

Page 10: ...ase as in step g R or L1 The power clamp will automatically select the proper range i Wait until the reading stabilizes then press the NEXT button The WRS WL1L2 symbol will disappear At this moment WRS is stored in memory and the WT WL3L2 symbol appears flashing to prompt the user to take the WTS WL3L2 measurement 2 Measure WTS or WL3L2 a Disconnect the test leads and jaws from the lines in the pr...

Page 11: ...to obtain correct power readings 3φ4W Unbalanced Power Measurements W 3φW W RST W R L1 W S L2 W T L3 The measurements of WR L1 WS L2 and WT L3 are required for these measurements 1 Measure WR L1 a Apply power to the meter with the jaw clear of any conductors b Set the rotary switch to the 3φ position c Press the 3φ button twice and the 3φ4W symbol appears singularly on the left side of the LCD The...

Page 12: ...oper range f Wait until the reading stabilizes then press the NEXT button The WT symbol will disappear and WT will be stored in memory 4 Once the NEXT button is pressed after measurements of WR WS and WT the power clamp will add the three values WR WS and WT together and display the result on the LCD The WRST symbol will appear indicating that the reading shown is the wattage of the 3φ4W unbalance...

Page 13: ... the reading stabilizes then press the NEXT button The WRS WL1G symbol will disappear and the WRS L1G reading will be stored in memory The WT WL2G symbol will flash prompting the user to take WTS WL2G measurements 2 Measure WTS or WL2G a Disconnect the test leads from the phase where the jaws were clamped onto in the previous measurement b Connect the test lead to the L2 line d If the watt reading...

Page 14: ...mewhat less than the value measured Improving the Power Factor of a 3φ Balanced Power System 1 Measure the KVAR 3φ value of a balanced system 2 Based upon the measured value a 3φ capacitor at the rated voltage and frequency can be used to improve power factor 3 To find the value of capacitance refer to the equation in the section above 4 It is recommended that the KVAR value of the capacitor be so...

Page 15: ...nt Recording Data The power clamp can store 4 data points in memory To store data displayed on the LCD press the REC button If the power clamp already has 4 data points memorized the LCD will display FULL The REC symbol will be displayed on the LCD if any data is currently stored in memory To clear the meter memory power the meter down Recalling Data from Memory To retrieve data from memory press ...

Page 16: ...e with the requirements for double insulation to IEC1010 1 2001 EN61010 1 2001 Overvoltage Category III 600V and Category II 1000V Pollution Degree 2 AC DC KW True Power PF 0 2 1 0 3φ3W 3φ4W 1φ2W and 1φ 3W Balanced Range Resolution Accuracy of reading Maximum Input Current Voltage 0 99 99KW 0 01KW 2 0 0 5KW 200A 500V AC DC 100 0 999 9KW 0 1KW 2 0 0 5KW 2000A 1000 1200KW 1KW 2 0 5KW 600VAC 800VDC A...

Page 17: ...dg 9d whichever is greater For more information refer to the section entitled DC AC 1φ2W Apparent Reactive Power measurements Phase Angle User must zero the current reading before taking measurements Range Accuracy Sensitivity Remark 90 to 90 2 0 V 100V A 10A Zero Crossing Detection Note If current signal is not detected the phase angle will be left blank in LCD Frequency if 10 Hz then the Hz Disp...

Page 18: ...ead and jaw connections 2 Remove the screws from the bottom of the meter housing 3 Lift and remove the meter battery compartment 4 Replace the 9V battery 5 Replace the case and secure the screws Copyright 2006 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form www ponpe com contact sale ponpe com ...

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