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GMC-I Messtechnik GmbH
METRISO 1000A
Insulation Tester
Nominal voltages 50 V, 100 V, 250 V, 500 V and 1000 V
This instrument is suited for measurement of insulation resistance
at voltage-free devices and systems with nominal voltages of up
to 1000 V, and for the insulation testing of earth conductors, pro-
tective conductors and bonding conductors, including junctions
and connections.
Quick testing with signal lamp
The signal lamp in the test prod serves to illuminate the work area,
and also indicates an evaluation of the insulation resistance as OK
or Failure. As long as this lamp is lit, the minimum values for insu-
lation resistance per VDE 0100 have been met.
Low impedance measurement 0 ... 4 Ω
Low impedance measurement in accordance with VDE 0413,
Part 4 is also possible.
Voltage measurement to 1000 V
The instrument is also equipped with a 1000 V measuring range
for direct and alternating current. This is especially advantageous
for the testing of devices for the absence of voltage, and the dis-
charge of capacitive devices under test.
Minimal use of batteries
Measurement only occurs when the ON/OFF button is
depressed. This provides for long service life of the batteries.
Dial gauge with signal lamp
The condition of the batteries is indicated by the color of the sig-
nal lamp at the left side of the dial gauge. This lamp also serves to
indicate that the instrument is switched on.
Applicable regulations and standards
IEC 61010-1
DIN EN 61010-1
VDE 0411-1
Safety regulations for electrical measuring, control and
laboratory equipment
– General requirements
EN 61557
VDE 0413
Part 1
Part 2
Part 4
Measuring and monitoring instruments for the testing of
electrical safety in systems with nominal voltages
of up to 1000 V AC and 1500 V DC
General requirements
Insulation resistance measuring instruments
Resistance measuring instruments
DIN EN 61326-1
VDE 0843-20-1
Electrical equipment for measurement, control and
laboratory use – EMC requirements
– Part 1: General requirements
EN 60529
DIN VDE 0470 Part 1
Test instruments and test procedures
– Degree of protection provided by enclosures (IP code)
DIN EN 60051 Direct-acting and direct-display electrical measuring
instruments and their accessories
• Nominal voltages:
50V, 100V, 250V, 500V und 1000V
• Quick testing with signal lamp
• Low impedance measurement 0 ... 4 Ω
• Voltage measurement up to 1000 V
METRISO 1000A
Insulation Tester
2 GMC-I Messtechnik GmbH
Technical Data
1)
)
As related to scale length
Scale lengths: R1 l = 46 mm
R2 l = 71 mm
R3 l = 80 mm
Ω l = 67 mm
Ul = 66 mm
2)
Within the marked area of the respective scale (nominal range of use)
Accuracy
Insulation resistance Class 1.5 in reference to scale length
after electrical zero balance
Direct and
alternating current class 2.5
Display
Movement Moving coil with core magnet
Turn-on performance
for insulation resistance measurement
An electronic voltage limiter prevents the voltage at the device
under test from substantially exceeding nominal voltage at turn-on
(see following characteristic curves).
Measuring
Function
Measuring Range
Intrinsic
Uncertainty at
Reference
Conditions
1)
Measuring
Uncer-
tainty
2)
Nominal
Voltage
U
N
Nominal/
Measuring
Current
Open-
circuit
Voltage
U
o
Fre-
quency/
Short-
circuit Cur-
rent I
k
Internal
Resistance
R
i
Switching Value
for Resistance
Overload Capacity
Value Duration
1000 V 0 ... 1000 V ± 2.5 % — — — —
DC /
40 ... 200
Hz
900 kΩ — 1200 V
continu-
ous
R1, R2, R3
U
N
= 50 V
0 ... 40 kΩ
± 1.5 %
±25%
rdg.
50 V
I
N
≥ 1.0 mA
60 V
<12mA
30 kΩ
> 100 kΩ 1200 V max. 10 s20 kΩ ... 1 MΩ 10 kΩ
200 kΩ ... 20 MΩ 40 kΩ
R1, R2, R3
U
N
= 100 V
0 ... 80 kΩ
± 1.5 %
±25%
rdg.
100 V 120 V
60 kΩ
> 200 kΩ 1200 V max. 10 s40 kΩ ... 2 MΩ 20 kΩ
400 kΩ ... 40 MΩ 80 kΩ
R1, R2, R3
U
N
= 250 V
0 ... 200 kΩ
± 1.5 %
±25%
rdg.
250 V 300 V
150 kΩ
> 500 kΩ 1200 V max. 10 s100 kΩ ... 5 MΩ 50 kΩ
1 MΩ ... 100 MΩ 200 kΩ
R1, R2, R3
U
N
= 500 V
0 ... 400 kΩ
± 1.5 %
±25%
rdg.
500 V 600 V
300 kΩ
> 1 MΩ 1200 V max. 10 s200 kΩ ...10 MΩ 100 kΩ
2 MΩ ... 200 MΩ 400 kΩ
R1, R2, R3
U
N
= 1000 V
0 ... 0.8 MΩ
± 1.5 %
±25%
rdg.
1000 V 1200 V
600 kΩ
> 2 MΩ 1200 V max. 10 s400 kΩ ... 20 MΩ 200 kΩ
4 MΩ ... 400 MΩ 800 kΩ
4 Ω 0 ... 4 Ω± 1.5 %
±10%
rdg.
—I
m
≥ 200 mA 9 V > 200 mA — — 0,315 A
continu-
ous
Ux
Rx
[V]
500
0
U
N
= 500 V
400
300
200
100
500
1000
Range R1
Ux
Rx
[V]
500
0
U
N
= 500 V
400
300
200
100
Range R3
600
Ux
Rx
[V]
500
0
U
N
= 500 V
400
300
200
100
0,5
1
Range R2
600
1,5
2
[MΩ]
[kΩ]
[MΩ]