Megger BM11D Manual Del Usuario página 19

Timer:
minutes
minutes: User selects test duration
Hum Rejection:
voltage
Voltage range:
V a.c. or d.c.
V a.c. or d.c.
not distinguish between V a.c. and V d.c.)
Accuracy (0 °C to +30 °C):
Guard Terminal:
parallel resistances to a minimum of 250 kΩ.
100 MΩ under these conditions, the additional error will be less
Capacitor charging time:
to 5 kV
Capacitor discharging time:
discharge to <50 V
Maximum continuous overload:
Temperature coefficient:
current >100 nA)
voltage
Temperature range:
+50 °C (Errors double outside range 0 to 30 °C)
BM11D: 0 to 60 +65 °C
Power supply:
BM21: 0 to 90
Lead-acid rechargeable batteries. Recharge time: 16 hours
8 hours continuous testing
1 mA rms per kV test
Environmental protection:
2 mA rms maximum
charging recess cover securely closed)
BM11D: 50 to 1000
Altitude:
operate within specification
BM21: 50 to1000
Fuses:
250 V IEC 127/1
(N.B. Display does
250 V IEC 127/1
±2% ±1 V
fused plug (when applicable): 3 A fuse to BS 1362
Will guard out
Safety:
When measuring
than 5%.
5s per µF to charge
2s per µF to
1 kV rms
0,2% per °C (test
E.M.C:
0,1% per °C for test
Operating: -20 °C to
Dimensions:
Storage: -25 °C to
158 mm
Two 12 V, 2 Ah
Battery life: typically
IP54 (with the
2000 m max. to
FS1: 100 mA (T),
FS2: 100 mA (F),
Mains Power cord
The instruments
meet the
requirements for
double insulation to
IEC 1010-1 (1995)
EN 61010-1 (1995)
to installation
Category III*, 300
Volts phase to earth
(ground) and 500
Volts phase to phase
The instruments
meet EN 50081-1
and EN 50082-1
(1992)
344 mm x 245 mm x
18