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VCM100D/VCM80D
User guide
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SAFETY WARNINGS
Safety warnings and precautions must be read and
understood before the VCM100D/VCM80D is used.
They must be observed during use.
The VCM100D/VCM80D must only be used
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with one of Megger's new OTS family of
products and be correctly fitted on the support
horns in the test chamber.
The VCM100D/VCM80D must only be used
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in the way intended and for the stated purposes
described by Megger.
The VCM100D/VCM80D must not be used if
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any part of it is damaged.
Calibration or repair of the VCM100D/VCM80D
must only be carried out by a Megger qualified
repair facility.
VCM100D/VCM80D
This family includes the following models:
Laboratory units: OTS100AF, OTS80AF and
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OTS60AF, the OTS100AF requires a VCM100D to
check votages above 80 kV.
Portable units: OTS80PB, OTS60PB.
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The meters enable the high voltage output to be
checked.
Operation
New OTS models are programmed with a test
sequence suitable for using the VCM100D/VCM80D.
This sequence causes the output of the oil test set
to ramp up from 0 kV to the maximum voltage
value, pausing at each 10 kV point for 10 seconds
to allow the voltage output to be checked.
The VCM100D/
VCM80D voltage
check meters are
used as a high
voltage meter for
Megger's new
Oil Test Set (OTS)
family.
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Simply replace the OTS test vessel with the VC-
M100D/VCM80D, close the lid and navigate to, the
VCM function on the tools tab. Select using the OK
button. After pressing the TEST button, the test will
proceed automatically. Read the VCM100D/VCM80D
meter when each steady voltage is displayed up to
the maximum instrument voltage.
The VCM100D/VCM80D is not a user servicable
item but may require periodic cleaning using a
clean cloth damped with Isopropyl Alcohol (IPA).
Technical specifications
Meter type
Accuracy at 23 ºC 2.0% plus 2 digits to 50 kVrms
Temperature range
Operational
Storage
Humidity range
Operational
Storage
Safety
Dimensions (W x H x D)
Weight
Proprietary 100 kV/80 kV
Megger OTS voltmeter with 4
digit readout.
2.5% plus 2 digits >50 kVrms to
75 kVrms
3.0% plus 2 digits >75 kVrms to
100 kVrms
0 ºC to 40 ºC
-30 ºC to +70 ºC
50% RH at 20 ºC
93% RH at 40 ºC
The meter is only approved for
use with Megger oil test sets
250 mm x 150 mm x 115 mm
1.8 kg
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