Amprobe MEGATEST-5000 Megohmmeter - Manual (Page 28)

6 Technical specifications
6.1 Technical features
Accuracy is shown in terms of [% of the reading + number of digits]. It refers to the
following ambient conditions: temperature 73°F +/- 2° (23 °C +/- 1°) with relative humidity
< 75%.
6.1.1 Measuring the insulation.
Accuracy Range
100 .. <500 V 500 .. <1000 V 1000 .. 2500 V 2500 .. 5000 V
100 K - 500 K ±(20% + 10dgt) ±(20% + 10dgt) ±(20% + 10dgt) ±(20% + 10dgt)
500 K - 50 G ±(5% + 1dgt) ±(5% + 1dgt) ±(5% + 1dgt) ±(5% + 1dgt)
50 G - 100 G ±(20% + 10dgt) ±(5% + 1dgt) ±(5% + 1dgt) ±(5% + 1dgt)
100 G - 250 G - - - ±(20% + 10dgt) ±(5% + 1dgt) ±(5% + 1dgt)
250 G - 500 G - - - - - - ±(20% + 10dgt) ±(5% + 1dgt)
Minimum resistance resolution:
1%
Voltage indication resolution: 1.22 V
6.1.2 Current which can be delivered
Voltage setting Max current
100 - 500 V 3.00 mA
1000 - 5000 V 1.40 mA
The output current is automatically limited.
6.1.3 Voltage measurement
Voltage range Resolution Accuracy
0 - 500 V 1,22V ±(10%+10 dgt)
500 - 5000 V 1,22V ±(10%+ 5 dgt)
The limits shown here are valid both for DC of any polarity and for AC.
Discharge time at 5000V: <1.5s x
µF.
6.1.4 Safety
Instrument according to standard:
EN 61010-1
Insulation: Class 2, Double insulation
Pollution level: 2
Indoors use; max altitude: 6,562 feet (2000 m)
Over-voltage category: CAT III 600V
Serial port insulation: 25 mm. (max. 5000 V)
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