User Documentation

20
3.4 Technical data
Rated voltage range VT Master: 12–690 V AC, DC (±),
(0 ... 65 Hz)
VT Combi Pro: 6–690 V AC, DC (±),
(16–400 Hz)
VT Digi Pro: 1–1000 V AC, DC (±),
(16–400 Hz)
Voltage level LED VT Master: 12/24/50/120/230/400/690 V
VT Combi Pro:
6/12/24/50/120/230/400/690 V
LED tolerances in accordance with EN 61243-3
ELV display > 50 V AC, > 120 V DC
Proper time < 1 s with 100% of the display value
Peak resistance
voltage
VT Master: 6 kV
VT Combi Pro, VT Digi Pro: 8 KV
Current consumption I
S
< 3.5 mA with 690 V (VT Digi Pro with
1000 V)
Peak current VT Master: < 3.5 mA with 690 V
VT Combi Pro: < 250 mA with 690 V
VT Digi Pro: < 350 mA with 1000 V
Impedance
(50 V AC)
VT Master: ~ 270 kΩ
VT Combi Pro: ~ 270 kΩ (without load), 
~ 5 kΩ (with load)
VT Digi Pro: ~ 325 kΩ (without load), ~ 5 kΩ 
(with load)
Operating time 30 s
Recovery time 240 s
Battery power
consumption
Approx. 80 mA
Phase testing
Frequency:
40 –70 Hz
100 –690 V AC, VT Digi Pro: 100 –1000 V AC
Rotating eld test
Frequency:
40 –70 Hz
170 –690 V phase-to-phase, AC
VT Digi Pro: 170 –1000 V phase-to-phase,
AC
Continuity test 0 –500 kΩ + 50%
Load connection VT Combi Pro, VT Digi Pro: ~ 30 mA with
230 V
Pollution severity
level
Class 2
Protection class VT Master: IP54
VT Combi Pro, VT Digi Pro: IP65
Surge voltage
category
VT Master: CAT III/600 V
VT Combi Pro: CAT III/690 V, CAT IV/600 V
VT Digi Pro: CAT III/1000 V, CAT IV/600 V
Standards IEC 61243-3:2014 (DIN EN 61243-3:2015-
08)
VT Digi Pro: EN 61010-1, EN 61010-2-033
Battery 2 x AAA, IEC LR03, 1.5 V
Dimensions (L x
B x H)
VT Master: 235 x 60 x 28 mm
VT Combi Pro: 264 x 67 x 33 mm
VT Digi Pro: 264 x 67 x 33 mm
Weight VT Master: 181 g
VT Combi Pro: 288 g
VT Digi Pro: 295 g
Environmental conditions
Temperature
Operation
Storage
-15 to +55 °C, non-condensing
-20 to +70 °C, non-condensing
Humidity Max. 85% RH
Height ≤ 2000 m
Only VT Digi Pro
Resistance
measurement
0  to 1999 Ω; Accuracy: ± 5% ± 10 dgt with 
25°C; Resolution: 1 Ω
Frequency measure-
ment
1–400 Hz; Accuracy: ± 5% ± 5 dgt; Reso-
lution: 1 Hz
LCD range 1 –1000 V, AC (16–400 Hz), DC (±)
LCD resolution 0.1 V (1 –29.9 V), 1 V (30 –1000 V)
LCD accuracy ± 3% ± 1.5 V (1 –29,9 V)
± 3% ± 3 dgt (30 –1000 V)
Display: Leave
measurement range
"OL"