CEM DT-912 Page 6 Operating Instruction Download

Page: 6 / 18

1. LCD Display

2. Function switch

3. 10A jack

4. COM jack

5. Positive jack

6. Data Hold Button

7. Backlight Button

Note:

Tilt stand, fuse and battery compartment are on rear

of unit.

SYMBOLS AND ANNUNCIATORS

•)))

Continuity
Diode test

micro (amps)

milli ( volts, amps)

kilo (ohms)



Ω

ohms

VDC

volts direct current

VAC

volts alternating current

ADC

amps direct current

BAT Battery test

Summary of Contents for DT-912

Page 1: ...OPERATING INSTRUTION DIGITAL MULTIMETER 10A COM V mA OFF 600 200 2000 20m 200 m 10A 1 5V 9V 200 2000 20k 200k 2000 k 600 200 20 2000 m 200 m VAC ADC BATT CAT III 600V VDC HOLD...

Page 2: ...1...

Page 3: ...200Vrms on 200mV range mA DC 200mA 250V fast acting fuse A DC 10A 250V fast acting fuse 30 seconds max every 15 minutes Resistance Continuity 250Vrms for 15sec max 2 USE EXTREME CAUTION when working...

Page 4: ...djacent to another symbol terminal or operating device indicates that the operator must refer to an explanation in the Operating Instructions to avoid personal injury or damage to the meter This WARNI...

Page 5: ...se be subjected to particularly hazardous voltages For maximum safety the meter and its test leads should not be handled when these terminals are energized This symbol indicates that a device is prote...

Page 6: ...d Button 7 Backlight Button Note Tilt stand fuse and battery compartment are on rear of unit SYMBOLS AND ANNUNCIATORS Continuity Diode test micro amps m milli volts amps k kilo ohms ohms VDC volts dir...

Page 7: ...digits 50 60Hz 600V 1V DC Current A DC 2000 A 1 A 1 0 reading 2 digits 20mA 10 A 200mA 100 A 1 2 reading 2 digits 10A 10mA 2 0 reading 2 digits Resistance 200 0 1 0 8 reading 2 digits 2000 1 20k 0 01...

Page 8: ...resistance is less than approximately 30 Battery Test current 9V 6mA 1 5V 100mA Input Impedance 1M ACV Bandwidth 45Hz to 450Hz DCA voltage drop 200mV Display 3 digit 2000 count LCD 1 1 digits Overran...

Page 9: ...ge Category II Pollution Degree 2 Category II includes local level appliance portable equipment etc with transient overvoltages less than Overvoltage Category III BATTERY INSTALLATION WARNING To avoid...

Page 10: ...r to freeze a measurement for later reference 1 Press the DATA HOLD button to freeze the reading on the indicator The indicator HOLD will be appear in the display 2 Press the DATA HOLD button to retur...

Page 11: ...roper measurement when connected to a circuit DC VOLTAGE MEASUREMENTS CAUTION Do not measure DC voltages if a motor on the circuit is being switched ON or OFF Large voltage surges may occur that can d...

Page 12: ...en the outlet actually has voltage on it Make sure the probe tips are touching the metal contacts inside the outlet before assuming that no voltage is present CAUTION Do not measure AC voltages if a m...

Page 13: ...may cause damage to the meter and or the test leads 1 Insert the black test lead banana plug into the negative COM jack 2 For current measurements up to 200mA DC set the function switch to the highest...

Page 14: ...value RESISTANCE MEASUREMENTS WARNING To avoid electric shock disconnect power to the unit under test and discharge all capacitors before taking any resistance measurements Remove the batteries and un...

Page 15: ...that have voltage on them 1 Set the function switch to the position 2 Insert the black lead banana plug into the negative COM jack Insert the red test lead banana plug into the positive jack 3 Touch t...

Page 16: ...polarities BATTERY TEST 1 Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive V jack 2 Select the 1 5V or 9V BAT position using the f...

Page 17: ...See the Battery Installation section of this manual 3 Dispose of the old batteries properly WARNING To avoid electric shock do not operate your meter until the battery door is in place and fastened se...

Page 18: ...size and value 0 2A 250V fast blow for the 200mA range 10A 250V fast blow for the 10A range 6 Put the fuse door back in place Insert the screw and tighten it securely WARNING To avoid electric shock...

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CEM DT-912, Operating Instruction

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