Megger BM101/4 - Specification

SPECIFICATION
Range:
BM100/4 BM101/4
Insulation 0,01 - 200 MΩ 0,01 - 200 MΩ
Resistance - 0,01 - 1 MΩ
Continuity (¡) 0,01 - 200 Ω 0,01 - 200 Ω
(¡¡) 0,01 - 2 Ω 0,01 - 2 Ω
Insulation Test Voltage: 500V d.c. 500V d.c.
Open Cct. Terminal Voltage:
Insulation Range <600V d.c. <600V d.c.
(>500V at 0,5MΩ) >500V at 0,5MΩ)
Resistance Range - 53V d.c.(nom.)
Continuity Ranges (¡) 0,76V d.c.(nom.) 0,76V d.c.(nom)
(¡¡) 4,7V d.c.(nom.) 4,7V d.c.(nom)
Typical Terminal Characteristics Limiting value curve
Short Cct.Terminal Current:
Insulation Range 1,6 mA 1,6 mA
Resistance Range - 325 µA
Continuity Ranges (¡) 12,3 mA 12,3 mA
(¡¡) 217 mA 217 mA
Movement: Robust Taut Band type. 250 µA F.S.D.
A.C. Voltage Measurement (BM100/4 only):
The Voltage range is automatically selected when the switch is in any
position and the ‘Test’ push button is not pressed. When connected across
the circuit under test, the BM100/4 will indicate if the circuit is energised
(a.c. or d.c.), and measure a.c.voltage up to 600 V.
Voltmeter Input Impedance: 330 kΩ
Automatic Discharge: Capacitive circuits are automatically
discharged via an internal (<500kΩ) resistor, when the ‘Test' push button
is released following an insulation test.
Accuracy (at 20°C): ± 2,5% of scale length on all ranges (e.g.± 1,9 mm
on Insulation range). Insulation range is marked with a white band (Class
1,5 as VDE 0413). Other ranges are Class 3.
Humidity: Operation: 90% R.H.max. at 20°C
80% R.H. max.at 35°C
Storage 95% R.H. max. at 35°C
Temperature Range: Operation: -5°C to + 40°C