Wurth TRMS 071553 415961 1 - Инструкция по эксплуатации - Страница 17

17

Resistance measurement

■

Set the selector switch measurement range to 

Ω

.

■

Connect the black measuring lead to the 

COM

socket 

[5] 

and the red measuring lead to 

the 

V 

Ω

 A

 socket. 

■

Connect the measuring leads to the test object. 

3

The multimeter automatically searches for the 

most favourable measurement range. 

■

Read the measurement result from the dis

-

play 

[1]

. 

Resistance

Measuring 

range

Resolution

Accuracy

200 Ω

0.1 Ω overvolt

-

age protection: 

250 V AC / DC

± 1 % + 5 digits

2 kΩ

0.001 kΩ

± 1 % + 5 digits

20 kΩ

0.01 kΩ

200 kΩ

0.1 kΩ

2 MΩ

0.001 MΩ

20 MΩ

0.01 mΩ

± 1.8 % + 5 

digits

Measuring voltage: 0.25 V.

Overvoltage protection: 600 V AC / DC < 30 s.

Diode test

■

Set the selector switch measurement range to 

Ω

. Connect the black measuring lead to the 

COM

socket 

[5] 

and the red measuring lead to the 

right socket. 

■

Set 

M

 button 

[8]

 to 

. Connect the measuring 

leads to the test object.  

■

Red measuring lead = anode, 

■

Black measuring lead = cathode. 

3

The reverse voltage is displayed.

Diode test

Measuring 

range

Resolu-

tion

Accuracy

0.001 V

Indicates the reverse 

voltage

■

Test current: approx. 0.6 mA, 

Reverse voltage: approx. 1.5 V.

■

Overvoltage protection: 600 V AC / DC < 30 s.

Continuity test

■

Set the selector switch measurement range to 

Ω

. 

■

Connect the black measuring lead to the 

COM

socket 

[5] 

and the red measuring lead to the 

right socket. 

■

Set 

M

 button 

[8]

 to 

. 

■

Connect the measuring leads to the circuit being 

tested. 

3

For electric paths that are continuous, i.e. resis-

tance less than 50 Ω, a beep is emitted.

■

Read the measurement result from the dis

-

play 

[1]

. 

   DANGER!

Check for a zero-volts condition and 

that capacitors in the measuring circuit 

are discharged

Continuity test

Measuring 

range

Function

The integrated buzzer signals conti

-

nuity up to 50 Ω

■

Measurement circuit voltage: approx. 0.5 V.

■

Overvoltage protection: 600 V AC / DC < 30 s.

True RMS

Where non-sinusoidal waveforms are measured, 

and the True RMS function is used, then the resultant 

measurement errors are smaller than those occurring 

when using conventional measurement methods.

Sinusoidal and non-sinusoidal signals can be mea

-

sured exactly using the True RMS function.