14 GMC-I Gossen-Metrawatt GmbH
7 Voltage Measurement
METRA HIT 26S/M/MIL V AC
TRMS
+ V(AC+DC)
TRMS
METRA HIT 25S V AC
TRMS
METRA HIT 22S/M, 23S, 24S V AC mean value rectification
➭ Depending upon the voltage to be measured, set the
rotary switch to V~,
V or V .
➭ Connect the measurement cables as shown.
The “⊥” jack should be grounded.
Note!
☞
In the 1000 V range, an intermittent acoustic
signal sounds alarm if the measurement value
exceeds the measuring range upper limit value.
Attention!
!
Make absolutely certain that neither of the current
ranges (“mA” or “A”) is active when the multimeter is
connected for voltage measurements! If the fuse trip
limits are exceeded due to operator error, both the
operator and the instrument are in danger!
Zero Balancing in the 300 mV Measuring Range
➭ Select the 300 mV measuring range.
➭ Connect the measurement cables to the instrument, and
connect the free cable ends to one another.
➭ Briefly press the multifunction key.
The instrument acknowledges zero balancing with an
acoustic signal and “
000.00” (± 1 digit) and the “ZERO”
symbol appears at the LCD. The voltage which was dis-
played at the moment the key was activated serves as a
reference value (max. ±2000 digits). It is automatically sub-
tracted from subsequently measured values.
➭ Zero balancing can be deleted:
– by pressing and holding the ESC|FUNC multifunction key,
after which deletion is acknowledged with a twice
repeated acoustic signal,
– by switching the instrument off.
1000V
V
F °C
– (+)
~
+ (–)
~