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V. ACCURACY SPECIFICATIONS

DC VOLTAGE

RANGE

RESOLUTION ACCURACY

60mV

0.01mV

±(0.8%+3) 

600mV

0.1mV

6V

0.001V

±(0.5%+1)

60V

0.01V

600V

0.1V

1000V

1V

±(1.0%+3)

-  True RMS is applicable from 10% of range to 

100% of range.

-  AC crest factor can be up to 3.0 except  

1000V where it is 1.5.

-  A residual reading of 10 digits with test leads 

shorted, will not affect stated accuracy.

AC VOLTAGE

RANGE

RESOLUTION ACCURACY

60mV

0.01mV 

±(1.2%+5) 

±(2.0%+5)

600mV

0.1mV 

6V

0.001V

±(1.0%+3)

±(1.5%+5)

60V

0.01V

600V

0.1V

1000V

1V

±(1.2%+5)

±(3.0%+5)

CAPACITANCE

RANGE

RESOLUTION ACCURACY

40nF

0.01nF

±(3.0%+5) 

400nF

0.1nF 

4μF

0.001μF 

40μF

0.01μF

400μF

0.1μF

±(4.0%+5)

4000μF

1μF

unspecified

RESISTANCE

RANGE

RESOLUTION ACCURACY

600

Ω

0.1

Ω

±(1.2%+2) 

6k

Ω

0.001k

Ω

±(1.0%+2) 

60k

Ω

0.01k

Ω

600K

Ω

0.1k

Ω

6M

Ω

0.001M

Ω

±(1.2%+2) 

60M

Ω

0.01M

Ω

+(1.5%+2)

DC CURRENT

RANGE

RESOLUTION ACCURACY

600μA 

0.1μA 

(1.0%+3) 

6000μA 

1μA 

60mA 

0.01mA 

600mA 

0.1mA 

6A

0.001A 

(1.2%+5) 

10A

0.01A 

- When 

5A: Continuous measurement is allowed.

-  When >5A: Continuous measurement less than  

10 seconds at an interval more than 15 minutes.

AC CURRENT

RANGE

RESOLUTION ACCURACY

600μA 

0.1μA 

(1.2%+5)  

6000μA 

1μA 

60mA 

0.01mA 

(1.5%+5) 

600mA 

0.1mA 

6A

0.001A 

(2.0%+5) 

10A

0.01A 

- When 

5A: Continuous measurement is allowed.

-  When >5A: Continuous measurement less than  

10 seconds at an interval more than 15 minutes.

-  True RMS is applicable from 10% of range to  

100% of range.

-  AC crest factor can be up to 3.0 except 1000V 

where it is 1.5.

-  A residual reading of 10 digits with test leads 

shorted, will not affect stated accuracy.

FREQUENCY

RANGE

RESOLUTION ACCURACY

10Hz

~

10MHz

0.01Hz

(0.1%+4) 

- Overload Protection: 1000V DC/AC

- Input Amplitude: (DC electric level is zero) 

-  When measuring on line frequency or duty cycle 

under AC Voltage and Current measurement mode, 

the input amplitude and frequency response must 

satisfy the following requirement:  

Input amplitude 

range x 30%  

Frequency response: 

1kHz

DIODE TEST

RESOLUTION

REMARKS 

OVERLOAD PROTECTION

0.001V 

Open circuit  

voltage around 2.8V

1000V DC/AC 

CONTINUITY TEST

RESOLUTION

OVERLOAD PROTECTION

0.1

Ω

 

1000V DC/AC 

- Open circuit voltage is around 0.45V.

-  Broken circuit resistance value is around > 350

Ω

the buzzer does not beep.

-  Good circuit resistance value is 

10

Ω

 on, the buzzer 

beeps continuously.

Summary of Contents for DM6650T

Page 1: ...ave AC DC Voltage Capacitance Test AC Alternating Current Hz Frequency and Duty Cycle Test DC Direct Current mA Millamp Ohm Resistance A Amp Diode Test NCV Non Contact Voltage Sensing Continuity Test...

Page 2: ...g mode OL The input value is too large for the selected range Test of diode The continuity buzzer is on Maximum and Minimum reading The battery is low Warning To avoid false readings which could lead...

Page 3: ...may cause sparking which can lead to an explosion Never use the instrument if its surface or your hand is wet Do not exceed the maximum allowable input of any measuring range Never open the battery co...

Page 4: ...rect current AC DC Selectable Alternating Current Direct Current Earth ground Terminal The equipment is protected throughout by double insulation or reinforced insulation Application around and remova...

Page 5: ...stated below Input Amplitude DC electric level is zero lnputAmplitude rangeX30 Frequency response 1kHz NOTE If the value of current to be measured is unknown use the maximum measurement position and...

Page 6: ...F CAPACITANCE MEASUREMENT See Figure 7 To measure capacitance connect the Meter as follows 1 Insert the red test lead into the input terminal and the black test lead into the COM terminal 2 Set the ro...

Page 7: ...mum values This sets the display to show high MAX and low MIN readings The Meter enters the manual ranging mode after pressing MAX MIN button Press and hold MAX MIN for over 2 seconds to exit the MAX...

Page 8: ...n 15 minutes AC CURRENT RANGE RESOLUTION ACCURACY 600 A 0 1 A 1 2 5 6000 A 1 A 60mA 0 01mA 1 5 5 600mA 0 1mA 6A 0 001A 2 0 5 10A 0 01A When 5A Continuous measurement is allowed When 5A Continuous meas...

Page 9: ...hen the fuse test has been completed disconnect the connection between the testing leads and the circuit under test and remove the testing leads from the input terminals of the Meter C Replacing the F...

Page 10: ...ts original purchasers in connection with the sales of Sperry products provided that such products shall not have been altered by the distributor The distributor shall be fully responsible for any war...

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