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Model 3128
High Voltage Insulation Tester |
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Insulation Testers |
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Features
- Microprocessor controlled high voltage insulation resistance
tester with Diagnostic functions.
- Suitable for analyzing the insulation characteristics of
cables, transformers, motors, generators, high-pressure
switches, insulators, wiring installations and more.
- Six ranges: 500V, 1000V, 2500V, 5000V, 10000V, 12000V.
(fine adjustment of voltage setting at each range is also
possible)
- Graphic representation of the insulation resistance and
leakage current verses time on large displays with bar graph and
backlight.
- Can be operated from built-in rechargeable battery or the AC
mains.
- Automatic discharge after test with monitoring of the
discharge voltage.
- Internal memory can store about 43,000 data points (max.)
- Robust design for field use with IP64 rating (with lid
closed).
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Insulation Resistance (*) Accuracy
is not guaranteed with setting of 250V or less |
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Rated Voltage |
500V |
1000V |
2500V |
5000V |
10000V |
12000V |
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Max Measurement Value |
500GΩ |
1TΩ |
2.5TΩ |
5TΩ |
35TΩ |
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Accuracy |
0 to 50GΩ
±5% of rdg ±3 dgt (*) |
0 to 100GΩ
±5% of rdg ±3 dgt |
0 to 250GΩ
±5% of rdg ±3 dgt |
0 to 500GΩ
±5% of rdg ±3 dgt |
0 to 1TΩ
±5% of rdg ±3 dgt
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50GΩ - 50GΩ |
100GΩ - 1TΩ |
250GΩ-2.5TΩ |
500GΩ - 5TΩ |
1TΩ ±20% of rdg |
10TΩ to 3510TΩ
values are displayed, but
accuracy isn't guaranteed |
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Short Circuit Current |
5mA max. |
5mA max. |
5mA max. |
5mA max. |
5mA max. |
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Load Resistor to Output Rated Voltage |
0.5MΩ
or more |
1MΩ
or more |
2.5MΩ
or more |
5MΩ
or more |
20MΩ
or more |
24MΩ
or more |
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Output Voltage |
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Rated Voltage |
500V |
1000V |
2500V |
5000V |
10000V |
12000V |
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Monitor Accuracy |
±10% ±20V |
±10% ±20V |
±10% ±20V |
±10% ±20V |
±10% ±20V |
±10% ±20V |
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Output Accuracy |
0 to +20% |
0 to +10% |
0 to +10% |
0 to +10% |
-5 to + 5% |
-5 to + 5% |
Selectable Range
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50-600
(in steps of 5V)
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610-1200V
(in steps of 10V) |
1225-3000V
(in steps of 25V) |
3050-6000V
(in steps of 50V) |
6100-10000V
(in steps of 100V)
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10100-12000V
(in steps of 100V)
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Voltage Measurement |
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Measuring Range |
DC Volts: ±30V to ±600V
AC Volts: 30V to 600V (50/60Hz) |
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Accuracy |
±2% of reading ±3 digits |
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Current Measurement |
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Measuring Range |
5.0nA to 2.40mA (depending on the insulation resistance) |
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Capacitance Measurement |
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Measuring Range |
5.0nF to 1.0µF, 5.0nF to 50.0µF (display range) |
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Accuracy |
±5% of reading ±5 digits |
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General Specifications |
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Withstand Voltage |
8770 volts AC: between line terminal and enclosure, 5 seconds
(50/60Hz) |
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6880 volts AC: between the measuring terminal and enclosure, 5
seconds (50/60Hz) |
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2330 volts AC: between the power connector and enclosure, 5 seconds
(50/60Hz) |
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Operating Temperature and Humidity Range |
-10°C to 50°C, Relative Humidity 85% or
less
(when operating with an external power supply, no condensation)
0°C to 40°C, Relative Humidity 85% or less
(when operating with battery, no condensation) |
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Storage Temperature |
-20°C to 60°C, Relative Humidity 75% or
less (no condensation) |
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Applicable Standards |
IEC 61010-1 CAT IV 600V Pollution Degree 2
IEC 61010-031, IEC 61326, IEC 60529 (IP64) with lid closed |
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DC Power Supply |
Rechargeable Lead Storage battery, 12 volts Note1
Charging Time: approx. 8 hours
Note1: Continuous measuring time: Approx. 4 hours a load
of 100MΩ at the insulation resistance 12000V
Range. |
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AC Power Supply |
100V to 240V 50/60Hz |
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Dimensions |
330mm (L) x 410mm (W) x 180mm (D) |
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Weight |
9kg approx. (including battery) |
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Ordering Information |
Model 3128
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High Voltage Insulation Tester. Supplied with: #7170 Mains
Cord, #7225 Guard Cord,
#7226 Line Probe, #7227 Line Probe with Alligator Clip, #8029
Extension Prod, Instruction Manual, Calibration certificate, and
#8212-USB-W USB adaptor with KEW Windows Software. |
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