XS series operating manual
XS user manual v0.55
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3 Megohmmeter function (insulation resistance
measurement)
500V megohmmeter function
(MXS500,DXS50/56,DXS500/506,SXS50/56,SXS500/506)
Measurement voltage
Voltage adjustable from
10V
to
500VDC
by 1 volt step.
Accuracy :
±(1% + 1V).
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 k
resistor.
Measurement range
Display :
2000 digits
The measurement range is defined by the following formula :
(Utest / Umax generator ) x 200 G
*
* or
2T
according to the
option
This gives the following board for the
50,100, 250, 500VDC
standard voltages
200G
basic version
2T
option version
Voltage
Measurement range
Voltage
Measurement range
50V
50k
to 20G
50V
50k
to 200G
100V
100k
to 40G
100V
100k
to 400G
250V
250k
to 100G
250V
250k
to 1T
500V
500k
to 200G
500V
500k
to 2T
Measurement accuracy
2000 digits numeric display with unity indication
(K
, M
, G
,T
).
Accuracy (% of the reading, 1U = 1 digit ) :
DXS and SXS models
200 G
basic version
(1.5% + 1U)
2 T
option and U<=200VDC
(2% + 1U)
2 T
option and U > 200VDC
(1% x Utest / 100 + 1U)
