Velleman VTTEST22 Bedienungsanleitung Seite 10

Voltage LED steps
Accuracy
Response time
AC frequency range
Operation time
Recovery time
Operating Temperature
Storage temperature
Relative Humidity
Altitude
Safety
Weight
Dimension
IP rating
Resistance
On/off time
10. Operation
Performing Tests and Measurements
The bipolar voltage meter consists of two test probes, a connecting cable
and the LED indicator panel. Always hold the voltage meter so that you can
look straight at the indicator panel. Illuminated indicators can be affected by
strong light. For DC measurements, the probe tip L1+ (2) "see image on
page 2) is the positive terminal, and the probe tip L2- (1) is the negative
terminal. The voltage meter automatically turns on when the test begins
(input level >12 V AC/DC) and turns off when the test is complete.
Warnings
Always check that the voltage meter is functioning properly before and after
use. First measure a known voltage source (for example, mains voltage 230
V/AC) and check the accuracy of the measurements. Stop use if one or
more indication ranges do not function. Do not use a defective voltage
meter. Observe the regulations for working with electrical systems. Personal
protective equipment must be used when working on systems with
hazardous electrical voltage. Follow the technical data in this regard. If the
V. 01 – 09/10/2023
VTTEST22
±12,24,50,120,230,400V
-30% to 10% of indication
<0.1s
50/60Hz
30s maximum
10 minutes after maximum operation time
has been reached
-15℃ to 45℃ (5℉ to 113℉)
-15℃ to 50℃ (5℉ to 122℉)
80% maximum
7000ft(2000m)
CAT III 400V
98.5g
223x40x32 mm
IP54
68kOhm @ 50V a.c.
30s ON, 600s OFF
10 ©Velleman Group nv