Datasheet

GMC-I Messtechnik GmbH 13

4.4.2 DC and AC Currents up to 10 A (Direct Connection)

Ð Disconnect the

power supply to the

measuring circuit

and/or power con-

sumer (R

), and dis-

charge all

capacitors, if avail-

able.

Ð Set the range switch

to position

1/10 A or

1/10 A~.

Ð Interrupt the mea-

suring circuit and

safely connect the

measuring leads (without transient resistor!) in series with the power

consumer R

. With DC current note the polarity!

Ð Set switch to position „ON“.

Ð Reconnect the power supply to the measuring circuit.

Ð Read the measured value on the V, A scale 0 ... 100.

4.4.3 DC and AC Currents above 10 A with External Shunt

Measurements of cur-

rents above 10 A are

possible with shunts

), e.g. 100 A/

100 mV.

Ð Set the range switch

to position 100 mV,

for instance, de-

pending on the volt-

age drop at the shunt.

Ð Then proceed according to chapter 4.4.1.

– (+) / ~ + (–) / ~

– / ~ + / ~