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Operating Instructions

WARNING:  

Risk of electrocution. High-voltage circuits, both AC and DC, 

are very dangerous and should be measured with great care.

If “1” appears in the display during a measurement, the value exceeds the 

range you have selected. Change to a higher range. 

NOTE:

 On some low AC and DC voltage ranges, with the test leads not con-

nected to a device, the display may show a random, changing reading. This 

is normal and is caused by the high-input sensitivity. The reading will stabilize 

and give a proper measurement when connected to a circuit.

NOTE: 

To extend the battery life of the meter the backlight will automatically 

turn off in approximate 30 seconds.

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 damage 

the meter.

1.   Set the function switch to the    position.
2.   Insert the black test lead banana plug into the negative 

COM

 jack and 

the red test lead banana plug into the positive 

V

 jack.

3.   Touch the black test probe tip to the negative side of the circuit and red 

test probe tip to the positive side of the circuit.

4.   Read the voltage in the display. If polarity is reversed, the display will 

show (-) minus sign before the value.

5.   Reset the function switch to successively lower   positions to obtain a 

higher resolution reading.

Summary of Contents for DMR-6600

Page 1: ...USER S MANUAL Digital Multimeter DMR 6600 CIRCUIT TEST ELECTRONICS www circuittest com...

Page 2: ...situation which if not avoided could result in death or serious injury This CAUTION symbol indicates a potentially hazardous situ ation which if not avoided may result damage to the product This symb...

Page 3: ...ly When using the test probes always keep fingers behind the finger guards Never touch the exposed probe tip Always consider circuits to be energized Never assume any equipment to be de energized Use...

Page 4: ...itance Continuity Diode 250V DC AC rms 2 USE EXTREME CAUTION when working with high voltages 3 NEVER connect the meter leads across a voltage source while the function switch is in the current resista...

Page 5: ...switch 4 20A positive input jack 5 A mA input jack 6 Backlight button 7 Positive input jack 8 COM negative input jack Continuity Diode Ohms Volts DC Volts AC Amps DC Amps AC F Farads micro farads m m...

Page 6: ...d nominal Operating Temperature 0 C to 50 C 32 F to 122 F at 70 relative humidity Storage temperature 20 C to 60 C 4 F to 140 F at 80 relative humidity Fuse 200mA 250V 5 x 20mm Fast blow 20A 250V 6 35...

Page 7: ...1V 1 2 of reading 5 digits Overload Protection 0 2A 250V and 20A 250V Fuse Note Accuracy is given at 18 C to 28 C 65 F to 83 F 70 RH AC Current Range Resolution Accuracy 2 000mA 1uA 1 2 of reading 3 d...

Page 8: ...ution Accuracy 2 000nF 1pF 4 0 of reading 20digits 20 00nF 10pF 4 0 of reading 3 digits 200 0nF 0 1nF 4 0 of reading 3 digits 2 000uF 1nF 200 0uF 0 1uF 20uF 4 0 of reading 15 digits 21uF unspecified I...

Page 9: ...e battery life of the meter the backlight will automatically turn off in approximate 30 seconds DC Voltage Measurements CAUTION Do not measure DC voltages if a motor on the circuit is being switched O...

Page 10: ...uch the black test probe tip to the negative side of the circuit and the red test probe tip to the positive side of the circuit 4 Read the voltage in the display The display will indicate the proper d...

Page 11: ...Touch the black test probe tip to the negative side of the circuit Touch the red test probe tip to the positive side of the circuit 6 Apply power to the circuit 7 Read the current in the display 8 For...

Page 12: ...acitors before taking any resistance measurements Remove the batteries and unplug the line cords 1 Set the function switch to the position 2 Insert the black test lead banana plug into the negative CO...

Page 13: ...lead banana plug into the negative jack COM and the red test lead banana plug into the positive jack 3 Touch the test leads to the capacitor to be tested 3 Touch the test probe tips to the diode or se...

Page 14: ...o not operate your meter until the battery door is in place and fastened securely Replacing the Fuses WARNING To avoid electric shock disconnect the test leads from any source of voltage before removi...

Page 15: ...period of 2 years from the date of purchase Any product which has been subjected to misuse or accidental damage is excluded from the warranty Except as stated above Circuit Test Electronics makes no p...

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