Wurth TRMS 071553 415961 1 - Инструкция по эксплуатации - Страница 15

15

   DANGER!

This measurement is not suitable for 

the detection of dangerous mains 

voltages. 

Even if the display 

[1]

 does not flash 

during testing or measurement and no 

signal beep is emitted, a dangerously 

high voltage  (> 33 V AC or 70 V DC) 

may still be present.

¾

Before touching live parts, check 

for the presence of dangerous 

voltages by means of direct, 

double-pole contact measurement 

of the alternating current area.

Cable break detector

The cable break detector is for the non-contact 

detection of cable breaks in unexposed, live cables.

■

Set the selector switch to 

CABLE BREAK DETECT

.

3

If the sensor at the top end of the multimeter is 

moved along a live cable (100 - 300 V AC) 

starting from the feed-in point, while keeping the 

M

 button 

[8] 

 pressed, the display 

[1]

 flashes 

and a beep is emitted before the break point.

   DANGER!

The non-contact cable break detection 

function is not suitable for the detec

-

tion of dangerous mains voltages. 

The non-contact sensor can only detect 

voltages created by power sources 

with sufficiently strong electric fields 

(mains network, > 100 V AC). 

■

In weaker electric fields, the device may not 

recognise the applied voltage and therefore not 

be cable to correctly locate the cable break. 

■

If the device does not detect any voltage, this 

may be caused, amongst others, by the following 

factors:

•  Shielded cables/wires

•  Thickness and type of insulation

• 

Distance to the voltage source

DC voltage

Measuring 

range

Resolution

Accuracy

200 mV

0.1 mV

± 0.5 % of the mea

-

sured value + 3 digits

± 0.8 % of the mea

-

sured value + 3 digits

2 V

0.001 V

20 V

0.01 V

200 V

0.1 V

600 V

1 V

Input resistance: 10 MΩ.

Max. input voltage: 600 V DC.

Alternating current measurement

■

Set the selector switch 

[4]

 to 

V~

. 

■

Connect the black measuring lead to the 

COM

socket 

[5] 

and the red measuring lead to the 

right socket. 

■

Connect the measuring leads to the test object. 

■

The multimeter automatically searches for the 

most favourable measurement range. Read the 

measurement result from the display 

[1]

. 

AC voltage

Measuring 

range

Resolution

Accuracy

200 mV

1 mV

± 1.5 % of the mea

-

sured value + 5 digits

2 V

0.001 V

20 V

0.01 V

200 V

0.1 V

600 V

1 V

Input resistance: 10 MΩ.

Max. input voltage: 600 V AC RMS, 

frequency range: 40-400 Hz.

■

Before measuring make certain that all other test 

leads are removed.

■

The red test lead can be used for single phase 

testing by pressing the 

M

 button 

[8]

. 

3

The display 

[1]

 flashes and a bleep is heard.