User Manual

40 GMC-I Messtechnik GmbH
Measurements: V/Hz/dB – PQ/ – MHz/% – Ω/nS/R
SL
– / – Temp – /m – W/Wh – A/Hz/thd
5.2.1 Conductivity Measurement
Conductivity measurement works within a range of 15 to 600 nS.
“ur” (under range) appears at the display for values below this
range, and “OL” appears for value which exceed the range.
5.2.2 Low-Resistance Measurement with Constant Current (RPE)
RPE measurement is started by pressing the FUNC key twice with
the selector switch in the Ω or nS position:
This is a low-resistance measurement within a range of 0.01 to
60 Ω with a constant current of approximately 3 mA.
Open circuit voltage is roughly 9 V.
Zero balancing must be executed before performing this measure-
ment.
Zero Balancing
Ð Plug the measurement cables into the instrument and connect
the free ends to each other.
Ð Briefly press the ZERO | ESC key.
The instrument acknowledges zero balancing with an acoustic
signal, and the “ZERO ΔREL” symbol appears at the LCD. The
value measured at the moment the key is pressed serves as a
reference value.
Ð Zero balancing can be cleared by once again pressing the
ZERO | ESC key.
Limit Value for Low-Resistance Measurement
In the event of a measured value which exceeds the selected limit
value, the system multimeter generates a continuous acoustic sig-
nal. The limit value can be adjusted in the “SET” menu in 0.1 Ω
steps (see also section 6.4):
1nFo
 ...  SET system  ...  r_pe
r _pe set: 00 .1 ... 00.3 ... 60 .9 Ω, 0 L 
(0.3 Ω = default setting)
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER