2
GB | Voltage Tester
Voltage tester VT-320 is designed for two-pole measurement of DC and AC voltage
between 12 and 690 V with a frequency of 0–60 Hz, for identifying the phase conductor,
the phase sequence in a three-phase system with a neutral conductor, to determine the
polarity of DC voltage and test continuity.
The tester meets the requirements of standard EN 61243-3:2015.
The tester can be used for making measurements in electrical wiring and devices falling
within overvoltage category CAT III 690 V.
Category CAT III is designed for measuring circuits powered by a fixed output power
supply, such as relays, sockets, switchboards, power supplies, short branching circuits
and lighting systems in large buildings.
Do not use for higher CAT categories.
International Electrical Symbols
alternating current (AC)
direct current (DC)
alternating or direct current
earthing
double insulation
warning, risk of danger. Read the manual in all cases where this symbol is used!
risk of injury by electric current
declaration of conformity (CE)
Specifications
Pollution degree: 2
Category and measurement range: CAT III 12–690 V AC/DC
Operating temperature: -10 °C to 55 °C
Storage temperature: -20 °C to 55 °C
Power supply: 1× 9 V battery, type 6F22
Enclosure: IP54
Dimensions 27 × 50 × 200 mm
Weight: 157 g (battery included)
Description of Tester
(see fig. 1)
1 – Mobile measuring tip
2 – Mobile measuring tip barrier
3 – Slider
4 – LEDs of voltage volume and +/-
polarity
5 – L2 measuring tip
6 – L3 LED
7 – Measuring tip barrier
8 – R LED
9 – R button
R
690
400
400
230
120
50
24
R
L1
L2
L3
12
+
1
2
3
4
10
11
5
6
7
12
9
8
1
2