Megohmmeter Model 6505 - User Manual
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4.4 CAPACITANCE
This measurement is made at the end of each insulation measurement while the
circuit is being discharged.
Measurement Range
(0.001 to 9.999) µF
(10.00 to 49.99) µF
Resolution
1 nF
10 nF
Accuracy
10 % of Reading ± 1 ct
10 %
4.5 POWER SUPPLY
■
9.6 V rechargeable NiMH battery pack.
■
Line Voltage: (85 to 256) V / 50-60 Hz.
Minimum Battery Charge Life
(per NF EN 61557-2)
Test
Voltage
Nominal
Charge
Number of Measurements
5 s on nominal charge
(with 25 s pause between each measurement)
500 V
500 kΩ
6500
1000 V
1 MΩ
5500
2500 V
2.5 MΩ
4000
5000 V
5 MΩ
1500
Average Battery Life:
The operating time will be 15 days or 3 weeks based on a
10 min PI measurement.
Recharge Time:
Charging must be completed between (68 and 86) °F (20 and 30) °C
6 h for 100 % capacity (10 h if the battery is completely drained)
0.5 h for 10 % capacity (charge life: approximately 2 days)
NOTE:
It is possible to recharge the batteries while performing
insulation measurements provided that the values measured are higher
than 20 MΩ. In this case, the recharging time is higher than 6 h and
depends on the frequency of the measurements.
4.6 ENVIRONMENTAL SPECIFICATIONS
Operating Range:
(14 to 104) °F (-10 to 40) °C during recharging of batteries
(14 to 131) °F (-10 to 55) °C during measurement
(10 to 80) % RH
Storage: (
-40 to 158) °F (-40 to 70) °C; (10 to 90) % RH
Altitude:
< 2000 m
Use indoors or outdoors
