GMC-I Messtechnik GmbH
7
3.5
Device Reset Function
If the test instrument does not function as described in these
instructions, we recommend a device reset. The test instrument
must be switched off and neither of the test probes may be con-
nected to a DUT. If device functions are still incorrect after switch-
ing the instrument back on again, remove the batteries as
described in section 5.1 on page 7, wait at least 10 seconds and
then reinsert the batteries (or replace them with new ones).
If the test instrument still does not function as described, remove
the batteries and contact our service department.
4
Technical Data
4.1
Measuring Functions
Insulation Resistance
Nominal Range per EN 61557-2: 0.100 M
– Rmax*
* The Rmax value depends on the selected test voltage:
Nominal voltage of 50 to 99 V
Rmax = 1.999 G
Nominal voltage of 100 to 249 V
Rmax = 3.999 G
Nominal voltage of 250 to 1000 V
Rmax = 9.999 G
Nom. measuring voltage 50 to 1000 V
Adjustable in steps of 1 V
Measuring voltage
-0%/+10% of nominal voltage
Nom. measuring current
1 mA (where Umes > Unom)
Short-circuit current
< 3 mA
Automatic discharging
of the DUT
Yes
Number of
measurements
Approx. 250 (with new alkaline batter-
ies)
Surge Protection
Measuring method
Rising DC voltage when measuring the so-
called milliampere point
Direct and Alternating Voltage (frequency range: 45 to 65 Hz)
Key
a) The TRMS value for alternating voltage is measured.
b) rdg. means reading, i.e. measured value.
d = digits (i.e. number of the decimal place with the least significance)
4.2
General Data
Reference Conditions
Temperature
23 ± 2° C
Relative humidity
40 to 60%
Device position
Any
Ambient Conditions
Operating Conditions
Operating temperature0 to 40° C
Relative humidity
Max. 85%, no condensation allowed
Device position
Any
Storage Conditions
Temperature
-10 to 70° C
Relative humidity
Max. 90% at -10 to +40° C
Max. 80% at +40 to +70° C
Device position
Any
Power Supply
Batteries
4 ea. AAA (LR03), 1.5 V alkaline or
1.2 V NIMH (with at least 750 mAh)
Number of
measurements
with batteries at 800 mAh:
approx. 1,000 measurements
(with 500 V test voltage on 500 k
Electrical Safety
Measuring category
with safety cap applied to test probe:
CAT III 300 V
without safety cap applied to test probe:
CAT II 300 V
Pollution degree
2
Protection class
II
Mechanical Design
Display
OLED, multicolored, graphic
Protection
IP 43
Dimensions
Approx. 260 x 70 x 40 mm
Weight
Approx. 0.36 kg with batteries
5
Maintenance
5.1
Device Power Supply
Caution: Dangerous Voltage!
Dangerous voltage in battery compartment!
Disconnect the test probes from the device under test and
switch the instrument off before removing the battery com-
partment lid.
The instrument may not be placed into service if the battery
compartment lid has not been inserted and secured with
the screws.
Either alkaline batteries or rechargeable NiCD/NiMH batteries may
be used to supply the instrument with electrical power (4 each,
size: AAA, type: LR03).
The battery charge level is continuously displayed (see section 3.2
on page 4).
If too little voltage is indicated, replace the batteries.
Note
We recommend removing the batteries during lengthy
periods of non-use (e.g. vacation). This prevents exces-
sive battery depletion or leakage, which may result in
damage to the instrument under unfavorable conditions.
5.1.1
Inserting and Replacing the Batteries
Loosen the two screws for the battery compartment lid at the
back of the instrument and remove the lid. Insert the batteries
with correct polarity (refer to the embossed symbols at the bot-
tom of the battery compartment).
Always replace all four batteries at once, and use high quality bat-
teries. Replace the battery compartment lid and retighten the
screws.
Range
Resolution
Intrinsic Uncertainty
Measuring
Uncertainty
0.100 to 9.999 M
0.001 M
(2% rdg. + 10 d)
(3 % rdg. + 20 d)
10.00 to 99.99 M
0.01 M
(2% rdg. + 10 dd)
(3% rdg. + 20 d)
100.0 to 999.9 M
0.1 M
(2% rdg. + 10 d)
(3% rdg. + 20 d)
1.000 G
... Rmax*
0.001 G
(4% rdg. + 15 d)
(5% rdg. + 25 d)
Range
Resolution
Intrinsic Uncertainty
Measuring
Uncertainty
40 to 1050 V
1 V
(2% rdg. + 2 d)
(3% rdg. + 3 d)
Range
Resolution
Intrinsic Uncertainty
Measuring
Uncertainty
0 to 600 V
1 V
(2% rdg. + 2 d)
(3% rdg. + 3 d)