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120

Digital Multimeter

Instruction Manual

Summary of Contents for 120

Page 1: ...120 Digital Multimeter Instruction Manual ...

Page 2: ...e conformity with these standards this instrument must be operated in accordance with the instructions and specifications given in this manual CAUTION Even though this instrument complies with the immunity stan dards the accuracy can be affected by strong radio emissions not covered in the above standards Sources such as hand held radio transceivers radio and TV transmitters vehicle radios and cel...

Page 3: ...o make sure there are no breaks or shorts Double check all connections before testing Have someone check on you periodically if working alone Have a complete understanding of circuit being measured Disconnect power to circuit then connect test leads to the 120 then to circuit being measured NEVER Attempt to measure unknown high voltages Attempt to measure current with the meter in parallel to the ...

Page 4: ... Safety Meets CE and IEC 1010 requirements UL Listed Large LCD Easy to read at all angles and the majority of light ing levels Data Hold Freeze readings on the display Rubber Boot Added protection when the instrument is dropped 120NB does not include boot Versatile Use accessories like a carbon monoxide attachment to expand the capabilities of the 120 S a P B S W b R 2 2 2 6 c R 2 6 d R 2 e T 2 ...

Page 5: ...acy Impedance 2V 0 001V 0 5 of reading 10MΩ 20V 0 01V 2 digits 200V 0 1V 600V 0 1V c ACV 45Hz to 450Hz Range Resolution Accuracy Impedance 200V 0 1V 1 2 of reading 10MΩ 600V 1V 3 digits d OHM Resistance Ω Ω Range Resolution Accuracy Overload Protection 2kΩ 0 001kΩ 0 5 of rdg 600V DC or AC Peak 1 digit e Continuity Buzzer Test Voltage Threshold Overload Protection 2 5V 100Ω 600 V DC or Peak AC Warn...

Page 6: ...measurement of DC Volts Select best range for the voltage to be measured V Used for measurement of AC Volts Select best range for the voltage to be measured Ω Ω Used for measurement of Resistance and Continuity Input Jacks COM Black test lead connection for all functions V Ω Ω Red test lead connection for OHM Continuity Buzzer DCV and ACV functions S ...

Page 7: ...G READING DCV COM VΩ 0 001V 600V Measurement Procedure 1 Disconnect power to circuit to be meas ured 2 Plug the black test lead into the COM input jack 3 Plug red test lead into V Ω input jack 4 Set rotary switch on 120 to desired range in DCV function depending on the voltage to be measured 5 Connect the test leads to the circuit to be measured 6 Reconnect power to the circuit to be meas ured 7 R...

Page 8: ... READING ACV COM VΩ 0 001V 600V Measurement Procedure 1 Disconnect power to circuit to be meas ured 2 Plug the black test lead into the COM input jack 3 Plug red test lead into V Ω Ω input jack 4 Set rotary switch on 120 to desired range in ACV function depending on the voltage to be measured 5 Connect the test leads to the circuit to be measured 6 Reconnect power to the circuit to be measured 7 R...

Page 9: ...s value from actual readings Instrument set up FUNC BLACK RED MIN MAX TEST LEAD TEST LEAD READING READING OHM COM VΩ 1Ω 2 000kΩ Measurement Procedure 1 Disconnect power to the circuit to be meas ured 2 Plug the black test lead into the COM input jack 3 Plug the red test lead into the V Ω Ω input jack 4 Set rotary switch on the 120 to 2kΩ Ω function depending on the voltage to be measured 5 Connect...

Page 10: ...d into the COM input jack 3 Plug the red test lead into the V Ω input jack 4 Set the rotary switch on the 120 to the position 5 Connect the test leads to the circuit to be meas ured 6 Listen for the buzzer to confirm continuity e Data Hold Press the DATA H button at any time on any func tion or range to freeze the reading on the LCD dis play This function is very useful when measuring in locations...

Page 11: ...art of the UL Listing of this product MAINTENANCE 1 Battery Replacement The 120 will display BAT when the internal 9 Volt battery needs replacement The battery is replaced as follows a Disconnect and remove all test leads from live circuits and from 120 b Remove the 120 from its protective boot c Remove the four screws from back of 120 housing d Carefully pull apart front and rear instrument housi...

Page 12: ...en Blvd Beaverton OR 97005 4814 USA Ph 503 520 9197 Fax 503 520 1225 Test Product International Ltd 342 Bronte Street South Unit 9 Milton Ontario L9T 5B7 Ph 905 693 8558 Fax 905 693 0888 Test Products International UK Ltd Longley House East Park Crawley West Sussex RH10 6AP Ph 44 0 1293 561212 Fax 44 0 1293 813465 120 Instruction Manual ...

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