35 Digital Multimeter Instruction Manual
TABLE OF CONTENTS page A. INTRODUCTION 1. Congratulations . . . . . . . . . . . . . . . . . .3 2. Product Description . . . . . . . . . . . . . .3 3. EC Declaration of Conformity . . . . . . . .4 B. SAFETY CONSIDERATIONS . . . . . . . . . . . .5 C. TECHNICAL DATA 1. Features and Benefits . . . . . . . . . . . . .6 2. Product Applications . . . . . . . . . . . . . .7 2. Specifications . . . . . . . . . . . . . . . . . . .8 D. MEASUREMENT TECHNIQUES 1. Controls and Functions . . . . . . . . . .10 2.
. EC Declaration of Conformity This is to certify that model 135 conforms to the protection requirements of the council directive 89/336/EEC, in the approximation of laws of the member states relating to Electromagnetic compatibility and 73/23/EEC, The Low Voltage Directive by application of the following standards: EN 50081-1 EN 50082-1 EN61010-1 EN61010-2-031 1992 Emissions Standard 1992 Immunity Standard 1993 Safety Standard 1995 Safety Standard To ensure conformity with these standards, this instrume
INTERNATIONAL SYMBOLS CAUTION: RISK OF ELECTRIC SHOCK AC (ALTERNATING CURRENT) 2. Product Applications Perform the following tests and/or measurements with the TPI 135 and the appropriate function: DC (DIRECT CURRENT) HVAC/R REFER TO INSTRUCTION MANUAL FUNCTION DCmV GROUND FUSE DOUBLE INSULATION ON/OFF, PUSH BUTTON SWITCH C. TECHNICAL DATA 1. Features and Benefits Safety Meets CE and IEC 1010 requirements. UL Listed to U.S. and Canadian Safety Standards.
3. Specifications d. ACA IEC 1010 Over Voltage: CAT II - 1000V CAT III - 600V Pollution Degree 2 a. DCV Range Resolution Accuracy Impedance 400mV 4V 40V 400V 1000V 0.1mV 0.001V 0.01V 0.1V 1V ±0.5% of reading, ±2 digits 10MΩ Range Resolution Accuracy Overload Protection 40µA 400µA 40mA 400mA 2A 10A 0.1µA 0.001mA 0.01mA 0.1mA 0.001A 0.01A ±0.8% of reading, ±3 digits Fuse* ± 3% of reading, ± 7 digits Fuse* F600V, 10A, 31CM e. OHM (Resistance,Ω) b.
D. MEASUREMENT TECHNIQUES 2. Step by Step Procedures: 1. Controls and Functions: a. Measuring DC Volts CAUTION! Do not attempt to make a voltage measurement if a test lead is plugged in the A or µmA input jack. Instrument damage and/or personal injury may result. Push Buttons Turns the 135 on and off. Data-H Activates the Data Hold function. Rotary Switch DCV Used for measurement of DC Volts. Select the best range for the voltage to be measured. ACV Used for measurement of AC Volts.
b. Measuring AC Volts CAUTION! Do not attempt to make a voltage measurement if a test lead is plugged in the A or µmA input jack. Instrument damage and/or personal injury may result. b. Measuring AC Volts (cont.) Measurement Procedure: 1. 2. 3. 4. WARNING! Do not attempt to make a voltage measurement of more than 1000V or of a voltage level that is unknown. 5. 6. 7. Instrument set-up: FUNCTION BLACK TEST LEAD RED TEST LEAD MINIMUM READING MAXIMUM READING ACV VΩ 0.
c. Measuring DC Amps (cont.) Measurement Procedure: 1. 2. 3. 4. 5. 6. 7. Disconnect power to circuit to be measured. Plug black test lead into the COM input jack. Plug red test lead into mAµA or A input jack depending on value of current to be measured. Set the rotary switch on the 135 to the desired range in the DCA function depending on the current to be measured and the input jack the red test lead is inserted into. Connect test leads in series to circuit to be measured.
e. Measuring Resistance WARNING! Do not attempt to make resistance measurements with circuit energized. For best results, remove the resistor completely from the circuit before attempting to measure it. NOTE: To make accurate low ohm measurements, short the ends of test leads together and record resistance reading. Deduct this value from actual readings. Application Notes When measuring resistance of a motor, make sure the power is disconnected prior to testing.
f. g. Measuring Capacitance Measuring Diodes CAUTION! Do not attempt to make diode measurements with circuit energized. The only way to accurately test a diode is to remove it completely from the circuit before attempting to measure it. WARNING! All capacitance measurements are to be made on de-energized circuits with all capacitors discharged only. Failure to de-energize and discharge capacitors before attempting to measure them could result in instrument damage and/or personal injury.
h. Continuity Buzzer E. ACCESSORIES* WARNING! Do not attempt to make continuity measurements with circuit energized. Instrument set-up: FUNCTION OHM( ) BLACK TEST LEAD RED TEST LEAD COM VΩ Measurement Procedure: 1. 2. 3. 4. 5. 6. Disconnect power to the circuit to be measured. Plug the black test lead into the COM input jack. Plug the red test lead into the V input jack. Set the rotary switch on the 135 to the position. Connect the test leads to the circuit to be measured.
F. MAINTENANCE 1. 2. Battery Replacement: The 135 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 the 135. b. Remove the 135 from its protective boot. c. Remove the three screws from back of 135 housing. d. Carefully pull apart front and rear instrument housing. e. Remove old battery and replace it with new battery. f. Reassemble instrument in reverse order from above.
5 Specifications (also see pages 8-9.) Function Range Resolution DCV 400mV 4V 40V 400V 1000V 0.1mV 0.001V 0.1V 0.1V 1V ACV 400mV 4V 40V 400V 750V 0.1mV 0.001V 0.01V 0.1V 1V DCA 40µA 400µA 40mA 400mA 2A 10A 0.1µA 0.001mA 0.01mA 0.1mA 0.1mA 0.01A ACA 40µA 400µA 40mA 400mA 2A 10A 0.1µA 0.001mA 0.01mA 0.1mA 0.001A 0.01A OHM 400Ω 4kΩ 40kΩ 400kΩ 4MΩ 40MΩ 0.1Ω 0.001kΩ 0.01kΩ 0.1kΩ 0.001MΩ 0.01MΩ CAP 400µF 20,000µF 0.01µF 1µF Test Voltage Max. Test Current Diode 2.5V Approx.
