Table of Contents
Related Manuals for TECPEL DMM-129A
Summary of Contents for TECPEL DMM-129A
- Page 1 OPERATING INSTRUCTIONS DIGITAL MULTIMETER µ µ Ω RANGE MIN/MAX HOLD ± cal>2s µ SHIFT Ω Auto power off Type K MAX 400mA Cx(+) Cx(-) Ω µ A CAT.III 1000V 20A/30sec FUSED 750V FUSED...
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Page 2: Table Of Contents
CONTENTS INTRODUCTION --------------------------------------------------------------- 1 UNPACKING AND INSPECTION ----------------------------------------- 1 SAFETY INFORMATION ---------------------------------------------------- 2 INSTRUMENT LAYOUT -------------------------------------------------- 4 HOW TO MAKE MEASUREMENTS ------------------------------------ 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... -
Page 3: Introduction
INTRODUCTION This manual contains information and warnings which must be followed to ensure safe operation and retain the meter in safe condition. WARNING READ “SAFETY INFORMATION” BEFORE USING THE METER. This multimeter is a handheld, 4000-count instrument that is designed for use in the laboratory, field servicing, and at home. -
Page 4: Safety Information
SAFETY INFORMATION The following safety precautions must be observed to ensure maximum personal safety during the operation, service and repair of this meter: 1. Read these operating instructions thoroughly and completely before operating your meter. Pay particular attention to WARNINGS which will inform you of potentially dangerous procedures. - Page 5 SAFETY INFORMATION The instrument complies with class II, overvoltage CAT.III 1000V of the IEC 1010-1 (EN61010-1); UL3111-1; and CAN-CSA C22.2 No. 1010.010-30 standards. Pollution degree 2 in accordance with IEC-664 indoor use. If the equipment is used in a manner not specified, the pro- tection provided by the equipment may be impaired.
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Page 6: Instrument Layout
INSTRUMENT LAYOUT µ µ Ω RANGE MIN/MAX HOLD ± cal>2s µ SHIFT Ω Auto power off Type K MAX 400mA Cx(+) Cx(-) Ω µ A CAT.III 1000V 20A/30sec FUSED 750V FUSED... - Page 7 1. Display. 3-3/4 digit (3999 maximum) with automatic decimal point analog bar graph, low battery and full annunciators for function and unit of measurement. 2. RANGE Button Press (RANGE) button to select the Manual Range mode and turn off the “AUTO” annunciator. (The meter remains in the range it was in when manual ranging was selected).
- Page 8 6. Temperature Jack The temperature jack is located in the lower left-hand corner of the front panel. To measure a wide range of temperature (-50°C to +1300°C), plug in a K-type thermocouple and take the reading di- rect from the digital display. 7.
- Page 9 Press the button a third time and both MAX and MIN indicators blink, indicating that the meter is still saving both maximum and minimum readings, but is displaying the real-time reading. Each suc- cessive press of MAX/MIN permits looking at either value or the real-time reading.
- Page 10 • INPUT WARNING BEEPER The Input Warning Beeper is a feature to protect the meter and you from unintentional misuse. If the DMM is set to measure a voltage while the test leads are plugged into a current jack, very high current could result when the test lead tips are placed to the voltage test point.
- Page 11 The following table shows the errors that result when the average- responding measurement is used instead of the True RMS value. Power Calculations (watts) from Voltage Measurements (Vpk=100V, Load=1kΩ resistor) AC RMS AC RMS AC RMS average average responding True RMS Error Sine wave Square wave...
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Page 12: How To Make Measurements
HOW TO MAKE MEASUREMENTS Before making any measurements always examine the instrument and accessories used with the instrument for damage, contamination (excessive dirt, grease, ect.) and defects. Examine the test leads for cracked or frayed insulation and make sure the lead plugs fit snugly into the instrument jacks. -
Page 13: Current Measurements
A minus sign on the left hand side of the LCD will appear if the leads are connected the other way round. CURRENT MEASUREMENTS These are made in series with the test circuit. All the current to be mea- sured flows through the multimeter. WARNING Do not attempt to measure currents in high energy circuits capable of delivering greater than 600V. -
Page 14: Resistance Measurements
4. Switch OFF or disconnect the circuit to be measured from all power sources, connect the multimeter in series with the conductor in which the current to be measured flows. 5. Switch ON the circuit. Note the reading. 6. Switch OFF or disconnect the circuit and remove the test leads from multimeter. -
Page 15: Continuity Testing
1. Insert the BLACK and RED test leads into the COM and VΩ input terminals respectively. 2. Set the rotary selector switch to the (Ω) position. 3. Connect the BLACK and RED test probe tips to the circuit or device under test, making sure it is de-energized first. -
Page 16: Frequency Measurements
FREQUENCY MEASUREMENTS 1. Set the Function/Range switch to Hz for frequency measurement. V Ω Hz jack and the black test 2. Connect the red test lead to the lead to the COM jack. 3. Connect the test leads to the point of measurement and read the frequency from the display. -
Page 17: Temperature Measurements
7. When the capacitor to be tested is connected, if “disc” symbol indi- cates on LCD, it means there is voltage existing the tested capaci- tor and need to be discharged before testing. TEMPERATURE MEASUREMENTS 1. Select the required temperature range and unit of measurement (°C or °F) by turning the rotary selector dial to one of the “TEMP”... -
Page 18: Specifications
SPECIFICATIONS • Display: 3¾ digit (4000 counts), 42 segments analog bar graph and function/units sign annunciators. • Polarity: Automatic, (-) negative polarity indication. • Overrange indication: (OL) or (-OL) is displayed. • Low battery indication: The “ ” is displayed when the battery voltage drops below accurate operating level. - Page 19 AC Volts (TRUE RMS) Range Resolution Accuracy(50Hz to 500Hz) 500Hz to 1kHz 400mV 100µV * ±(1.2% rdg + 5 d) Unspecified ±(1.0% rdg + 3 d) ±(1.5% rdg + 5 d) 10mV ±(1.0% rdg + 3 d) ±(1.2% rdg + 5 d) 400V 100mV ±(1.0% rdg + 3 d)
- Page 20 Resistance Range Resolution Accuracy Open Circuit Volts 400Ω 0.1Ω ±(0.5% rdg + 4 d) -1.2Vdc 4kΩ 1Ω ±(0.4% rdg + 2 d) -0.45Vdc 40kΩ 10Ω ±(0.4% rdg + 2 d) -0.45Vdc 400kΩ 100Ω ±(0.4% rdg + 2 d) -0.45Vdc 4MΩ 1kΩ...
- Page 21 Overload Protection: 500VDC or RMS AC * Accuracy using relative mode to zero meter. Frequency Range Resolution Accuracy Sensitivity 4kHz >1.0V rms 40kHz 10Hz >1.0V rms 400kHz 100Hz ±(0.1% rdg + 3 dgts) >1.0V rms 4MHz 1kHz >2.0V rms <5V rms 40MHz 10kHz >2.0V rms <5V rms...
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Page 22: Maintenance
MAINTENANCE Repairs or servicing not covered in this manual should only be per- formed by qualified personnel. REPLACING THE BATTERY WARNING TO AVOID ELECTRICAL SHOCK, DISCONNECT THE TEST LEADS AND ANY INPUT SIGNALS BEFORE REPLACING THE BATTERY. REPLACE ONLY WITH SAME TYPE OF BATTERY. -
Page 23: Replacing The Fuse
REPLACING THE FUSE WARNING TO AVOID ELECTRICAL SHOCK, DISCONNECT THE TEST LEADS AND ANY INPUT SIGNALS BEFORE REPLACING THE FUSES. REPLACE ONLY WITH SAME TYPE OF FUSES. THE 20A INPUT TERMINAL IS PROTECTED BY A F20A, 600V HIGH ENERGY, FAST ACTING. THE mA INPUT TERMINAL IS PROTECTED BY A F500mA, 500V FAST ACTING FUSE. - Page 24 NOTE...
- Page 25 P/N: 7000-1650...