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Questions

Q

What are the main differences between a desktop digital multimeter and a conventional handheld multimeter?

A

The display digits are different, the measurement accuracy is different, and the extended functions (232 interface, etc.) are different.

Q

What are the most important indicators of a desktop digital multimeter?

A

Display digits and measurement accuracy.

Q

What are 1/2 digits, 3/4 digits, 4/5 digits and 50000 readings?

A

The first place on the left shows the title 1/2 that is less than 2, and the title less than 6 is 3/4, 4/5, and 50000 is the maximum reading of 50000.

Q

What are the measurement functions of the desktop digital multimeter?

A

Basic functions: In addition to measuring AC and DC voltage, AC and DC current, DC resistance and other five basic functions

Auxiliary functions: There are also digital calculation, self-check, reading hold, error reading, diode detection, etc.

Q

What similar products can our desktop digital multimeter be compared with or replaced?

A

It can be compared with Agilent34401A and FLUKE digital multimeter.

Q

How to solve the problem of no display when TH1951/61 is turned on?

A

Check whether the CPU is in poor contact or the display is not good.

Q

Is the AC voltage tested by TH1951/61 a true effective value?

A

Yes.

Q

Is the AC voltage tested by TH1941/42 a true effective value?

A

Yes.

Q

What are the specific ranges of voltage, current, and resistance?

A

1941/1942 DC voltage range (200mv, 500mv), (2v/5v), (20v/50v), (200v/500v), 1000v. 1941/1942DCI (2/5)mA, (20/50)mA, (200/500)mA, (2/5)A, 20A. ACV1941/1942(200/500)mv,(2/5)v,(20/50)v(200/500)v,750v.ACI1941/1942(2/5)mA,(20/50)mA,( 200/500) mA, (2/5) A, 20A. DCR1941/1942(200/500),(2K/5K),(20K/50K),(200K/500K),(2M/5M),(20M/50M).

1951/1961DCV (100mv, 1v, 10v, 100v, 1000v), 1951/61ACV (100mv, 1v, 10v, 100v, 750v), 1951/1961 DCV (10mA, 100mA, 1A, 10A), ACI (10mA, 1A, 10A) ), DCR(100,1K,10K,100K,1M,10M,100M)

Q

What is the specific test range for voltage, current, and resistance?

A

DCV is (0-1000V), ACV is (0-750V), DCI1951/61 is (0-10A), DCI1941/1942 is (0-20A), ACI1951/1961 (0-10A), ACI1941 /1942(0-20A), DCR1951/1961(0-100M), DCR1941(0-20M), DCR1942(0-50M).

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