3-349-674-03
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GMC-I Messtechnik GmbH
METRISO G1000A
Analog Insulation, Low Resistance and Voltage Measurement Instrument
Applications
The insulation and resistance measuring instrument allows for
quick and efficient testing of protective measures in accordance
with DIN VDE 0100, ÖVE-EN 1 (Austria), NIV/NIN SEV 1000
(Switzerland), and regulations specific to other countries as well.
The instrument complies with IEC/EN 61557 / VDE 0413 regula-
tions:
Part 1: General requirements
Part 2: Insulation resistance
Part 4: Resistance of earth connection, protective conductors
and equipotential bonding
Part 10: Electrical safety in low-voltage systems up to 1000 V AC
and 1500 V DC – Equipment for testing, measuring or
monitoring of protective measures
As well as requirements per VDE 0701-0702:
Repair, modification and testing of electrical devices,
The insulation measuring instrument is suitable for the following tasks:
• Measurement of insulation resistance at voltage-free devices
and systems, up to 1000 V depending upon variant
• Checking of test objects for absence of voltage in systems
with up to 1 kV
• Testing of the resistance of earthing conductors, protective
conductors and equipotential bonding
• Testing of electrostatic discharge capacity for floor coverings
(using shielded measurement cables) – EN 1081
Intelligent filter
Precise and measurement-dependent activation for the measure-
ment of very high resistances with
• beating, i. e. compensation of 16
2
/
3
Hz and 50 Hz interference
• attenuation of capacitive influences from power cables, etc.
• suppression of electric field influences
Overview of Included Features
Discharging Capacitive Devices Under Test
Capacitive devices under test such as cables and coils, which
may be charged with test voltage, are discharged by the measur-
ing instrument. The falling voltage value can be observed at the
display.
METRISO G1000A
Article number M542A
Measurements
R
INS
U = 50, 100, 250, 500, 1000 V
3
R
LO
0.17 ... 4
3
U 10 ... 1000 V
3
Display Functions
Scale illumination
3
Limit value LED (green/red) for:
additional acoustic signal,
limit values per VDE 0100
R
INS
R
LO
LED for dangerous contact voltage
in the off state and for active test voltage
3
Battery level display
3
Special Functions
Discharge capacitive devices under test
3
Safety shutdown (UBatt < 8 V)
3
Features
Measuring category CAT II 1000 V / CAT III 600 V /
CAT IV 300 V
3
Test resistor: 10 M
3
Factory calibration certificate
3
• Insulation measurement per EN 61557-2/VDE 0413, part 2
• Test voltages: 50 V, 100 V, 250 V, 500 V and 1000 V
• Analog display of measured values and limit values
• Intelligent filter – precise and measurement-dependent activa-
tion for the measurement of very high resistances
• Indication of dangerous touch voltage by means of LED
• Indication of limit value violations by means of LED
• Detection of interference voltage in switch position OFF
• Surge protection:
protects the instrument in the event of inadvertent connection
to mains power
– Fuse link for all resistance measuring ranges
–
New Electronic fuse for the protection of low resistance
and resistance measurement
• Voltage measurement to 1000 V
• Low-resistance measurement per EN 61557-4/VDE 0413, part 4
• Guard terminal for compensating surface current
• Compact and rugged: for service calls under harsh conditions
• One measuring point self-test with test resistance of 10 M
per IEC/HD 60364-6 / EN 50110
METRISO G1000A
Analog Insulation, Low Resistance and Voltage Measurement Instrument
2 GMC-I Messtechnik GmbH
Characteristic Values
1
Accuracy specified here is only achieved with the following optional accessory:
“shielded high-resistance measurement cable KS-C (article number Z541F)”.
2
Relative to scale length:
Scale 1: 83.13 mm
Scale 2: 75.05 mm
Scales 3 and 4: 67.02 mm
3
Within the identified range on the respective scale (nominal range of use)
4
with ZERO balancing
5
0.17 ... 220%
Displays
Analog Display
Measuring movement Moving-coil mechanism with core
magnet
Scale length 83.13 mm (longest scale)
Limit LED LED lights up red to indicate an
exceeded limit value
LED lights up green to indicate adher-
ence to the limit value
LED LED lights up red to indicate the pres-
ence of interference voltage (when
instrument is switched off),
test voltage during insulation measure-
ment or residual voltage after insulation
testing (U > 50 V),
Reference Conditions
Reference temperature + 23 C 3K
Relative atmospheric
humidity 40 ... 75%
Measured quantity
frequency
45 Hz ... 65 Hz
Measured quantity
waveform Sine, deviation between TRMS and
rectified value < 1%
Battery voltage 9.5 V 0.1 V
Test resistance 10 M1%
Normal position of use 30°
Power Supply
Batteries 8 ea. 1.5 V mignon cell (8 ea. size AA)
(alkaline manganese per IEC LR14) or 8
rechargeable NiMH batteries (must be
recharged externally)
Nominal range of use
8.5 ... 12 V
Battery test Battery capacity display via the
Bat. TEST key
Battery saver circuit
Standby function
Service life For R
INS
(1000 V / 1 M) and R
LO
with
20 s on-time and 1 measurement each
for a duration of 5 s
– With batteries (alkaline manganese):
900 measurements
– With rechargeable batteries
(2000 mAh):
850 measurements
Safety shutdown If supply voltage is too low, the instru-
ment is switched off, or cannot be
switched on.
When the rotary switch is set to the OFF
position, the instrument is completely
disconnected from the batteries (after
approximately 10 seconds).
Meas.
Qty.
Scale /
Standard
Measuring
Range
Nominal range of
use
Nominal / Open-
Circuit Voltage
Nominal
Current I
N
Short-
Circuit
Current I
K
Intrinsic Uncertainty
under Reference
Conditions
2
Measuring
Uncertainty
3
Overload
Capacity
R
INS
VDE 0413
100 k ...
100 M
100 k ...
10 M
50 V /100 V:
1.25 U
ISO
250 V /500 V /
1000 V:
1.1 U
ISO
1 mA 5 mA
2.5%
30% of the
measured value
1000 V AC/DC
TRMS
10 k ... 1 T
100 k ...
100 G
2.5%
1
R
LO
0 to 5 0.17 to 4
4
4 V < U
0
< 6 V
Test current I
N
200 mA 2.5%
10%
5
of the
measured value
1000 V AC/DC
TRMS
U
AC/DC
0 ... 1000 V 10 ... 1000 V — — — 2.5% —
1000 V AC/DC
TRMS
U
BAT
8 ... 12 V 8.5 ... 12 V — — — —
2
1
3
4
5
1
2
4
5
3
!