Conductivity Measurement; Low-Resistance Measurement With Constant Current (Rpe) - Gossen MetraWatt METRAHIT ENERGY TRMS System Multimeter Operating Instructions Manual

Measurements: V/Hz/dB – PQ/

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  or nS position:
This is a low-resistance measurement within a range of 0.01 to
60  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 REL" 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.
40
– MHz/% – /nS/R
– /
SL
– Temp – /m – W/Wh – A/Hz/thd
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 
steps (see also section 6.4):
MEASURE
1nFo   SET
...
SETUP
FUNC
r _pe set: 00 .1 ... 00.3 ... 60 .9 , 0 L
ENTER
(0.3  = default setting)
FUNC
system   r_pe
...
ENTER
FUNC

ENTER
GMC-I Messtechnik GmbH