If an instrument is not used over an extended time period, the accumulators or
batteries must be removed. Should the instrument be contaminated by leaking battery
cells, the instrument has to be returned for cleaning and inspection to the factory.
12.0 Calibration Interval
The instrument has to be periodically calibrated by our service department in order to
ensure the specified accuracy of measurement results. We recommend a calibration inter-
val of two years.
13.0 Technical Data
Display:........................................................... LCD
Duration of measurement:.............................. 3-5s
Measurement principle:.................................. current-voltage measurement principle
in accordance with EN61557-5
Measurement voltage:.................................... 25V/ 50V selection
Current/power consumption:.......................... approx. 10mA/ 0,1W
max. 500mA briefly, during measurement
Measurement current:.....................................max. 12mA
Frequency (f1/ f2)........................................... 127Hz/ 140Hz
Measurement method:................................... 2 pole, 3 pole, 4 pole
Tolerance:
RE: ................................................................. 0.05 - 2.00 Ohm ±(4% + 0.1 Ohm)
±(6% + 0.1 Ohm)*
RE: ................................................................. 2.00 - 1999 Ohm ±(4% + 2 Digit)
±(6% + 3 Digit)*
RH, RS: .......................................................... 0.1 - 50 kOhm
±(10% + 3 Digit)*
IM: ..................................................................0.1 - 13mA
±(10% + 3 Digit)*
*Instrument error
Nominal use range:
Correct polarity:.............................................. for 3/4 pole measurements
Disturbance voltage:........................................0...5V, max. 10% of measurement voltage
RH, RS:........................................................... max. 50 kOhm
Ratio RH/ RE:..................................................max. 1000/1
Ratio RS/ RE:...................................................max. 10000/1
RE:..... .............................................................max. 2 KOhm
Reference range:
Correct polarity:...............................................for 3/4 pole measurements
Disturbance voltage:........................................0 V
Temperature ranges: ......................................+17°C...+27°C
RH,RS:.............................................................0 Ohm
RE:...................................................................max. 2 kOhm
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