GMC-I Messtechnik GmbH
13
➭
If the measuring current is less than 500 mA. set the mea-
suring range switch to lower direct current ranges in the
case of direct current, and to lower alternating current
ranges in the case of alternating current, until the optimum
deflection is obtained.
➭
Read off the measured value: METRA HIT 1A: for DC on
scale 0 ... 15 V,A , for AC on scale 0 ... 15 V,A .
METRA HIT 2A: for DC on scale 0 ... 15 V,A , for AC on
scale 0 ... 15 V,A .
4.4.2 METRA HIT 2A: Direct and Alternating Currents up to 15 A
➭
Set the range switch to the posi-
tion 15 A
or 15 A
.
➭
Plug the test leads into the in-
strument; (black) test lead to
socket „
⊥
“ and (red) test lead to
socket „+ 15 A
“.
➭
Disconnect the power supply to
the test circuit or consumer (R
v
)
and discharge all capacitors, if
any.
➭
Disconnect test circuit and con-
nect test leads safely (no contact
resistance) in series to the con-
sumer R
v
. In the case of direct
current, observe the correct pole signs. Negative to socket
„
⊥
“ and positive to „+ 15 A
“.
➭
Re-connect the supply to the test circuit.
➭
Read off the measured value: for DC on scale 0 ... 15 V,A ,
for AC on scale 0 ... 15 V,A .
