Megger MIT510/2 - Circuit Diagram and Specifications; Circuit Block Diagram; Key Technical Specifications

10
Voltage input range
85-265 V rms, 50/60Hz, 60 VA
Battery life
Typical capacity is 6 hours continuous testing at 5 kV with a 100 MΩ load
Test voltages
250 V, 500 V, 1000 V, 2500 V, 5000 V
Accuracy (23°C, 5 kV)
±5% @ 1 TΩ
±20% @ 10 TΩ
Guard
2% error guarding 500 kΩ leakage with 100 MΩ load
Display range
Digital display (3 digits) 10 kΩ to 15 TΩ
Analogue display 100 kΩ to 1 TΩ
Short circuit/charge curr
ent
3 mA @ 5 kV
Capacitor charge time
<3 seconds per
µF at 3mA to 5 kV
Capacitor discharge time
<120 ms per µF to discharge from 5000 V to 50 V
Capacitance measurement (500 V minimum test voltage)
10 nF to 50 µF (dependent on test voltage)
Capacitance measurement accuracy (23°C)
±5% ±5 nF
Circuit block diagram
For 5 kV instruments C1 = 47 nF, R1 = 50 kΩ, R2 = 40 kΩ
F
or 10 kV instr
uments C1 = 15 nF, R1 = 156 kΩ, R2 = 110 kΩ
SPECIFICATION
100 MΩ
R1
R2
C1
Volts
Fuse
Cable
under
test
+
+
-
-
G
Discharge
resistance
Current
Ref
Voltage
control
Current
Limit
High
voltage
source