DMM SANWA PC720M, Instruction Manual

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5-11-1 AC flexible clamp sensor: CL3000

(Max. measurable current 3000 A ac)

1) What to measure

50/60 Hz sine wave current such as consumption current of 
home appliances, current of power supply equipments, and etc.

2) Measuring ranges

30 A, 300 A, and 3000 A

3) Measuring procedure

①

Connect the red plug of the current probe to the V measuring 

terminal and the black one to the COM terminal.

②

Set the function selector to 

, then press the SELECT 

button to select    /Hz.

③

Press the RANGE button to set the 9.999 V range.

④

Set the range selector knob on the current probe to the 30 A,  

300 A, or 3000 A range.

⑤

Clamp the conductor under test with the flexible current 

probe.

⑥

Multiply the reading by 10 for 30 A range, by 100 for 300 A 

range, and by 1000 for 3000 A range respectively, and read 
in units of A (amps).

Note:

・

Current exceeding 30 A, 300 A, or 3000 A cannot be measured. 

(Do not measure such high current even though the display 
works.)

・

Try to put the conductor under test in the center of the flexible 

current probe as possible.

5-11-2 Clamp probe: CL-22AD

(Max. measurable current 200 A dc/ac)

1) What to measure

ACA: 50/60 Hz sine wave current such as consumption current 

of home appliances, current of power supply equipments, 
and etc.

DCA: Current of automotive electric circuits, consumption 

current of DC equipments, etc.

2) Measuring ranges

20 A and 200 A

3) Measuring procedure

①

Connect the red plug of the current probe to the V measuring 

terminal and the black one to the COM terminal.

②

To make DC current measurement (DCA), set the function 

selector to 

 and press the SELECT button to select 

m , then press the RABGE button to set 600.0 mV range.
To make AC current measurement (ACA), set the function 
selector to 

 and press the SELECT button to select m  

/Hz, then press the RANGE button to set 600.0 mV range.

③

 Set the range selector knob on the current probe to the 20 A 

range or 200 A range.
*Before making DC current measurement, turn the Center 

Adjuster knob to make the reading zero.

④

Open the clamp jaws of the clamp probe and clamp the wire 

to measure.

⑤

Multiply the reading by 0.1 for 20 A range, and read the 

display directly for 200 A range.

Note:

・

Current exceeding 20 A or 200 A cannot be measured.

(Do not measure such high current even though the display 

works.)

・

Try to put the wire to measure in the center of the clamp jaws 

as possible.