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XS series operating manual
3 Megohmmeter function (insulation resistance
measurement)
500V megohmmeter function
Measurement voltage
Voltage adjustable from 10V to 500VDC by 1 volt step.
Accuracy : ±(1% + 1V).
Mise en forme : Puces et
numéros
Positive pole of the HV generator is grounded ( earth)
Dynamic stability for a mains ∆V = ±10% : >1%.
The maximum current in the measurement circuit is : 2 mA ±20%.
The discharge current is limited by a 2.2 kΩ resistor.
Mise en forme : Puces et
numéros
Measurement range
Display : 2000 digits
The measurement range is defined by the following formula :
(Utest / Umax generator ) x 200 GΩ *
* or 2TΩ according to the option
This gives the following board for the 50,100, 250, 500VDC standard voltages
200GΩ basic version
Voltage
Measurement range
50V
50kΩ to 20GΩ
100V
100kΩ to 40GΩ
250V
250kΩ to 100GΩ
500V
500kΩ to 200GΩ
2TΩ option version
Voltage
Measurement range
50V
50kΩ to 200GΩ
100V
100kΩ to 400GΩ
250V
250kΩ to 1TΩ
500V
500kΩ to 2TΩ
Measurement accuracy
2000 digits numeric display with unity indication (KΩ, MΩ, GΩ,TΩ).
Accuracy (% of the reading, 1U = 1 digit ) :
200 GΩ basic version
2 TΩ option and U<=100VDC
2 TΩ option and U > 100VDC
- 17 -
DXS and SXS models
±(1.5% + 1U)
±(2% + 1U)
±(1% x Utest / 100 + 1U)
Mise en forme : Puces et
numéros