3
Make Complete Diagnostic Tests of Transformers, Cables, Motors and Other Equipment
Measurement time
PI and DAR display
❚
Right: first measurement
Left: second measurement
PI: Polarization Index
DAR: Dielectric Absorption Ratio
DAR value
Resistance value
Right: first measurement value
Left: second measurement value
The PI and DAR values which are used as an evaluation standard
for insulation are automatically calculated. With the insulation
resistance measurement start point as reference, the calculation
is performed as follows, using two resistance values obtained at
a prescribed time interval.
Measurement time
First : 1 min ; Second : 10 min
resistance value 10 min after start
resistance value 1 min after start
Formulas : PI=
PI value
Resistance value
Right: first measurement 30.0 G
Left: second measurement 60.0 G
resistance value 1 min after start
resistance value 15 sec after start
DAR 1min/15s =
Ω
Ω
resistance value 1 min after start
resistance value 30 sec after start
DAR 1min/30s =
Specifications
■
Accuracy:
Measurement Items:
Insulation Resistance
■
■
Insulation resistance, leakage current, voltage, temperature
Measurement range
Accuracy
Test voltage: 250V to 5.00kV DC
Up to [Test voltage / Resistance measurable at
100 nA]
±5%rdg.±5dgt.
Setting: Preset test voltages: 250 V, 500 V, 1 kV, 2.5 kV, 5 kV
Fine adjustment: possible in 25 V steps between 250 V
[Test voltage / Resistance measurable at 100 nA]
±20%rdg.±5dgt.
±30%rdg.±50dgt.
to 500 G
Ω
and 1 kV and in 100 V steps between 1 and 5 kV
Applies only when the measured resistance is equal to or
higher than the value gained from dividing the test voltage
(setting voltage) by the rated measurement current. Output
voltage is not guaranteed if measured resistance is lower than
[test voltage/rated measurement current].
501G to 5.00T
Ω
Ω
(temperature and humidity range for guaranteed accuracy 0 to 28˚C, max. 90%rh, no condensation)
15s max. (from measurement start to until guaranteed
accuracy display, no averaging)
Response time:
Measurement current:
(current measurement with test voltage being generated)
1.00nA to 1.20mA
Test voltage
Measurement current
1mA
■
Leakage Current
Measurement range:
250V to 1.00kV
1.10kV to 2.50kV
2.60kV to 5.00kV
0.5mA
Current range
and accuracy:
0.25mA
Rated measurement current tolerance: -0%, +10%
Current range
Measurement range
1.00nA to 9.99nA
9.0nA to 99.9nA
90nA to 999nA
Accuracy
Short-circuit
current:
10nA
100nA
1000nA
10µA
±15%rdg. ±1nA
± 15%rdg. ±5dgt.
±2.5%rdg. ±5dgt.
±2.5%rdg. ±5dgt.
±2.5%rdg. ±5dgt.
±2.5%rdg. ±5dgt.
2 mA or less
Output voltage
Monitor function:
Display range: 0 to 999 V, 0.98 to 5.50 kV
Monitor accuracy: ± 5% rdg. ± 5 dgt.
0.90µA to 9.99µA
9.0µA to 99.9µA
100µA
1mA
Measurement range:
Test voltage
250 V
Measurement range
90µA to 999µA,
0.90mA to 1.20mA
0.00M to 250G
Ω
Ω
500 V
0.00M to 500G
Ω
Ω
(auto range, temperature and humidity range for guaranteed accuracy 0 to 28˚C, max. 90%rh, no condensation)
1 kV
0.00M to 1.00T
Ω
Ω
Ω
Ω
2.5 kV
5 kV
0.00M to 2.50T
Ω
15 s max. (from measurement start to until guaranteed
accuracy display, no averaging)
Response time:
0.00M to 5.00T
Ω
(temperature and humidity range for guaranteed
accuracy 23±5 ˚C, max. 90%rh, no condensation)
DC ±50V to ±1.00kV , AC 50V to 750V
DC/ 50Hz/ 60Hz
Voltage
■
Resistance range:
(auto range)
Resistance range
Measurement range
0.00M to 9.99M
10M
Ω
Ω
Ω
Measurement range:
Frequency:
100M
9.0M to 99.9M
Ω Ω
Ω
1000M
90M to 999M
Ω Ω
Ω
±5%rdg. ±5dgt.
Accuracy:
10G
0.90G to 9.99G
Ω Ω
Ω
(for DC, absolute values of 1.01 kV and above are out
of guaranteed accuracy range)
100G
9.0G to 99.9G
Ω Ω
Ω
1000G
5T
90G to 999G
Ω Ω
Ω
Approx. 10 M
I
nput impedance:
Response time:
Ω
0.90T to 5.00T
Ω
Ω
Ω
3 s or less
Temperature
■
Resistance range accuracy
Measurement range
–10.0˚C to –0.1˚C
0.0˚C to 40.0˚C
40.1˚C to 70.0˚C
Accuracy
±1.5˚C
±1.0˚C
±1.5˚C
Measurement range
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5.00T
2.50T
and Accuracy:
1.00T
500G
250G
100G
50.0G
25.0G
10.0G
5.00G
2.50G
1.00G
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When using the 9631-05 temperature sensor, accuracy is
guaranteed only for 0.0 - 40.0 ˚C range
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Approx. 100 s, including response of temperature
Response time:
100M
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sensor models
to
9631-01 9631-05
10.0M
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(reference value, time until a 90% value of a
temperature change is shown)
1.00M
0.00M
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250V
500V
1kV
2.5kV
5kV
Test voltage (setting value)
ASM-SENSOR [ ASM GMBH ]
