TECPEL DMM-129A Operating Instructions Manual Download Page 1 | Manualshive

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OPERATING INSTRUCTIONS

DIGITAL MULTIMETER

MAX

1000V

20A/30sec

FUSED

FUSED

750V

COM

mA

20A

MAX 400mA Cx(+)

Cx(-)

mA

µ

A

Auto power off

Type K

+

Ω

Hz

µ

A

Ω

CAT.III

MAX

V

F

C

20A

SHIFT

MIN/MAX

RANGE

cal>2s

REL

±

10

0

20

30

µ

HOLD

40

Ω

µ

1
2
3
...
»

Summary of Contents for DMM-129A

Page 1: ...INSTRUCTIONS DIGITAL MULTIMETER MAX 1000V 20A 30sec FUSED FUSED 750V COM mA 20A MAX 400mA Cx Cx mA µA Auto power off Type K Ω Hz µA Ω CAT III MAX V F C 20A SHIFT MIN MAX RANGE cal 2s REL 10 0 20 30 µ HOLD 40 Ω µ ...

Page 2: ...SUREMENTS 10 Voltage Measurements 10 Current Measurements 11 Resistance Measurements 12 Continuity Testing 13 Diode Testing 13 Frequency Measurements 14 Capacitance Measurements 14 Temperature Measurements 15 RS232 Operating 15 SPECIFICATIONS 16 MAINTENANCE 20 Replacing the Battery 20 Replacing the Fuse 21 ...

Page 3: ...a rugged case in shock resis tant and fire retardant Electronic overload protection for all functions and ranges The Protective Holster optional accessory combined with rugged case make it a durable and reliable instrument UNPACKING AND INSPECTION Upon removing your new Digital Multimeter DMM from its packing you should have the following items 1 Digital Multimeter 2 Test Lead Set one black one re...

Page 4: ...bber shoes rubber mats or any approved insulating material 5 To avoid electric shock use CAUTION when working with voltages above 40Vdc or 20Vac Such voltages pose a shock hazard 6 Never exceed the maximum allowable input value of any function when taking a measurement Refer to the specifications for maxi mum inputs 7 Never touch exposed wiring connections or any live circuit when attempting to ta...

Page 5: ...symbols used on this instrument are Caution risk of electric shock Caution refer to accompanying documents Equipment protected throughout by Double insulation Class II Alternating current Direct current Ground This product complies with the requirements of the following European Community Directives 89 336 EEC Electromagnetic Compatibility and 73 23 EEC Low Voltage as amended by 93 68 EEC CE Marki...

Page 6: ...UT MAX 1000V 20A 30sec FUSED FUSED 750V COM mA 20A MAX 400mA Cx Cx mA µA Auto power off Type K Ω Hz µA Ω CAT III MAX V F C 20A SHIFT MIN MAX RANGE cal 2s REL 10 0 20 30 µ HOLD 40 Ω µ 1 2 4 3 5 6 7 8 14 13 10 9 12 11 4 ...

Page 7: ... REL Button When the REL button is pressed the present reading become the zero reading and all subsequent readings are displayed relative to this value This function is cleared by pressing the REL button 1 sec which returns the meter to normal operation 4 PEAK Button Record the peak or peak value in a measurement It is usable with AC DC voltage AC DC current measurements If the pressed time 2 sec ...

Page 8: ... Red test lead 9 V Ω Hz This is the positive input terminal for all functions except current capacitance measurements Connection is made to it using the red test lead 10 COM Common Terminal This is the negative ground input terminal for all measurement modes Connection is made to it using the Black test lead 11 Shift Boutton Shift DCA ACA Ω function 12 RS232 Button Press the button to show RS232 a...

Page 9: ...splayed and the last reading is frozen on the display Press the HOLD button again to exit and resume readings 15 Other Functions AUTO POWER OFF 1 The meter will automatically shut off if the Function Range switch position is not changed within 30 minutes 2 The auto power off mode is activated with an APO symbol indicating on LCD 3 After auto power off press any button on DMM except HOLD button or ...

Page 10: ... True RMS Measurements This multimeter permits direct measurement of the true RMS value of a signal This is the best way to measure parameters used for measurements relating to power The relationship between the total true RMS AC DC and the com ponent AC and DC signals is given by the following expression True RMS AC RMS Component 2 DC Component 2 RMS is equivalent to that DC value which dissipate...

Page 11: ... components contained within the waveforms are within the band width of the converter Crest factor is a measure of the input dynamic range of an AC converter It expresses the ability of the converter to accept a signal that has large peak values compared to its RMS value without saturating the converter circuitry and degading the specified accuracy Crest factor is defined as the ratio of the peak ...

Page 12: ...ING To avoid possible electric shock instrument damage and or equip ment damage do not attempt to take any voltage measurements if the voltage is above 1000Vdc 750Vac 1000Vdc and 750Vac are the maximum voltages that this instrument is designed to measure The COM terminal potential should not exceed 500V measured to ground 3 Connect the test lead tips in parallel with the circuit to be measured e g...

Page 13: ... This is 20A maximum time limit of 30 seconds for currents greater than 10A for the 20A terminal and 400mA for the mA terminal All current rages are fused If a current greater than 20A on the 20A range or greater than 500mA on all other ranges flows the fuse will blow causing an open circuit between the current measuring terminals 1 Insert the BLACK test lead in the COM input terminal 2 For measur...

Page 14: ...VAC or a 3 phase industrial voltage 415V very high fault currents can result This is why all current input terminal are fused If the fuses blow they must only be replaced by the equiva lent ones otherwise the safety of the instrument may be impaired 7 Never apply a voltage between the COM terminal and current terminals 8 When switching between current ranges to obtain greater accuracy and better r...

Page 15: ...ract the lead resistance from resistance measurements CONTINUITY TESTING 1 Select the position by turning the rotary selector switch 2 Follow steps 1 and 3 as for resistance measurements An audible tone will sound for resistance less than approximately 40Ω After all measurements are completed disconnect the test leads from the cir cuit and from the multimeter input terminals DIODE TESTING CAUTION ...

Page 16: ...the Function Range switch to capacitance 2 Connect the COM and the Cx µA mA leads to the capacitor Observe polarity when measureing polarized capacitors 3 Read the capacitance directly from the display A shorted capacitor will indicate an overrange An open capacitor will indicate near zero on all ranges 4 For maximum accuracy step to the desired range in manual ranging then press the REL button to...

Page 17: ...oint where the tem perature is to be measured NOTE for very high temperatures the multimeter must be kept far enough away from the source of temperature to avoid heat damage At high temperatures the life of the temperature probe will be reduced RS232 OPERATING 1 Connect the DMM to the PC using the serial cable provided 2 At the DMM rotate the function selector switch to the range 3 Press the RS232...

Page 18: ... coefficient 0 1 specified accuracy C 0 C to 18 C or 28 C to 50 C Auto power off 30 minutes after rotary switch or mode changes Altitude 6561 7 feet 2000M Battery Single 9Volt battery NEDA 1604 IEC 6F22 JIS 006P Battery life 500 hours typical with alkaline battery Size H W D 7 8 3 6 1 7 inches 198 90 44mm Weight Approx 14 1 oz 400 g including battery Accuracy is given as of reading number of least...

Page 19: ...w ceramic fuse 10A continuous 20A for 30 seconds maximum Crest factor 3 Range Resolution Accuracy 50Hz to 500Hz 500Hz to 1kHz 400mV 4V 40V 400V 750V 100µV 1mV 10mV 100mV 1V 1 2 rdg 5 d 1 0 rdg 3 d 1 0 rdg 3 d 1 0 rdg 3 d 1 2 rdg 5 d Unspecified 1 5 rdg 5 d 1 2 rdg 5 d 1 2 rdg 5 d 1 5 rdg 5 d Range Resolution Accuracy Burden Voltage 400µA 4mA 40mA 400mA 20A 0 1µA 1µA 10µA 100µA 10mA 1 0 rdg 1 d 1 0...

Page 20: ...n Circuit Volts 400Ω 4kΩ 40kΩ 400kΩ 4MΩ 40MΩ 0 1Ω 1Ω 10Ω 100Ω 1kΩ 10kΩ 0 5 rdg 4 d 0 4 rdg 2 d 0 4 rdg 2 d 0 4 rdg 2 d 0 7 rdg 4 d 1 5 rdg 4 d 1 2Vdc 0 45Vdc 0 45Vdc 0 45Vdc 0 45Vdc 0 45Vdc Range Resolution Accuracy Test Current 4V 1mV 1 5 rdg 3d 1 2mA Open Circuit Volts 3 0Vdc typical Range Resolution Accuracy 4nF 40nF 400nF 4µF 40µF 400µF 4mF 40mF 1pF 10pF 100pF 1nF 10nF 0 1nF 1µF 10µF 3 0 rdg 2...

Page 21: ...r RMS AC Temperature Overload Protection 60VDC or 24VAC RMS Range Resolution Accuracy Sensitivity 4kHz 40kHz 400kHz 4MHz 40MHz 1Hz 10Hz 100Hz 1kHz 10kHz 0 1 rdg 3 dgts 1 0V rms 1 0V rms 1 0V rms 2 0V rms 5V rms 2 0V rms 5V rms Range Resolution Accuracy 50 C to 400 C 1 C 0 8 rdg 2 C 400 C to 1300 C 1 C 1 0 rdg 2 C 58 F to 400 F 1 F 0 8 rdg 4 F 400 F to 2372 F 1 F 1 0 rdg 4 F ...

Page 22: ...ure to replacing the battery 1 Disconnect test leads from any live source turn the rotary switch to OFF and remove the test leads from the input terminals 2 The case bottom is secured to the case top by three screws and two internal snaps at the LCD end Using a Phillips head screwdriver remove the three screws from the case bottom and turn the case over 3 Lift the input terminal end of the case bo...

Page 23: ...switch to OFF and remove the test leads from the input terminals 2 The case bottom is secured to the case top by three screws and two internal snaps at the LCD end Using a Phillips head screwdriver remove the three screws from the case bottom and turn the case over 3 Lift the input terminal end of the case bottom until it gently unsnaps from the case top at the end nearest the LCD 4 Remove blown f...

Page 24: ...NOTE ...

Page 25: ...P N 7000 1650 ...

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