User manual


Always place the current sensor around only one
conductor, since the currents may otherwise cancel each
other out and wrong measured values may be displayed.
Never reach beyond the grip area (5) (marked with two
arrows in the sketch).
If current is owing in the conductor, the current can be
read at the meter.
The following alternate voltages are output proportionally
to the measured current:
30 A range 100 mV/A
300 A range 10 mV/A
3000 A range 1 mV/A
 For a single- and three-phase connection able with a rmly installed mains plug, use the optional current
measuring adapters if required. They facilitate measurement at rmly connected mains cables.
When reaching around the conductor, ensure that the conductor is at the centre
of the Flex current sensor. A deviating position increases the measuring error
(measuring deviation).
The following table shows the error tolerances to be added up and the corres-
ponding distances from the centre. The centre is marked with a “+” in the sketch.
Distance
eld
VC-10T VC-18T
Distance Error Distance Error
A 15 mm ±2% 35 mm ±1%
B 25 mm ±2.5% 50 mm ±1.5%
C 35 mm ±3% 60 mm ±2%