Allows a quick check of high
voltage output to be made.
Tests up to 100 kV with
accuracy of 3%.
Easy to read mirror arc
display with tolerance bands.
Operation The OTSAF/2 series are
programmed with a test sequence suitable for using the
VCM100 called ‘CHECK CALIBRATION’. 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 calibration to be checked.
Other versions of Megger oil test
sets (such as the OTSAF, OTS60 auto and OTS75 auto) can
be used in manual mode or with a low rate of voltage
rise to allow checking with the VCM100. Later versions
of the OTSAF also have the ‘CHECK CALIBRATION’
procedure.
VCM100
Specification
Panel Meter scaling
0 to 100 kV in 2 kV
divisions
Accuracy
±3% of full scale
Temperature Range
Operating
0°C
to 40°C
Storage
-30°C
to 70°C
Humidity Range
Operating
80% RH at 40°C
Storage
93% RH at 40°C
Safety
The meter is only approved
for
use with Megger oil test
sets
Dimensions
198mm x 235mm x 102mm
Weight
2.4 kg
OTS VCM100
Scale Plate
Parameters of
test specifications (programmed in OTS60PB,
OTS60AF/2, OTS80AF/2 and OTS100AF/2)
Maximum Duration
of Selected Test
Sequence
Test Spec Selected
Electrode Shape
Initial Stand
Rate of rise of
test voltage
Intermediate Stir
Time
Intermediate Stand
Time
Number of Tests
OTS60B
OTS60AF/2
OTS80AF/2
OTS100AF/2
5 min test
B
1 minute
2kV/sec
30 sec
30 sec
3
4 min. 30s
5 minutes
5 min 30s
IEC156 etc
A, B
5 minutes
2kV/sec
2 minutes
option 1
2 minutes
option 2
6
18 minutes
19 minutes
20 minutes
ASTM D877
C
2 min 20sec
3kV/sec
-
1 minute
5
8 minutes
8 min 33sec
9 min 7sec
ASTM D1816
A
3 minutes
0-5kV/sec
continuous
1 minute
5
17 minutes
20 min 20s
23 min 40s
UNE21
A, B
10 minutes
2kV/sec
1 minute
4 minutes
6
38 minutes
39 minutes
40 minutes
Withstand A
B
0 -99 min
55 sec**
2kV/sec
Ramps to
pre-selected value of 1 minute or breakdown
Withstand B
B
0 -99 min
55 sec**
2kV/sec
As above and
continues to breakdown or maximum value of test
set
Custom
(1-5)*
-
0 -99 min
55 sec**
0,5 - 5,0 kV/s*
0 to 99 min 55s* 0 to 99 min 55s* 1 to 99
-
-
-
BS5730A
A, B
-
2kV/sec
1 minute
1 minute
Withstand test at
22kV, 30kV or 40kV (depending on equipment
category and electrode gap) for 60 sec. If
breakdown occurs another two tests are carried
out, both must pass if sample is OK.
Note: *
User selectable
Note: **
OTSAF/2 only
IEC156 etc.
includes BS148, BS5874, VDE 0370, NFC 27, CE1344, OCT
6581, SABS555, AS1767, STA8286 and IP295.
NFC27, STAS286 and
UNE21 omit the first breakdown value from the average
calculation.
Optional 12 V supply lead
enables operation from vehicle cigarette lighter socket
110 V, 120 V, 220
V, 240 V ±10%
50/60 Hz
Four
pre-selectable values
Display
Dot
matrix LCD giving alphanumeric information and kV test
voltage.
Resolution
1Kv
1kV
Dimensions
373mm (H) x 259mm
(W) x 247mm (D)
464mm (H) x 502mm
(W) x 319mm (D)
Weight
19kg
41kg
Fuses
2 x F6,3 A,
IEC127/1, 20 mm x 5 mm, HBC
2 x F6,3 A,
IEC127/1, 20 mm x 5 mm, HBC
T2 A, IEC127/5, 20 mm x 5 mm, HBC for 220/240 V
T4 A, IEC127/5, 20 mm x 5 mm, HBC for 110/120 V
Temperature Range
Storage
0°C to 40°C
0°C to 40°C
Operating
-30°C to +65°C
-40°C to +70°C
Humidity Range
Storage
93% RH at 40°C,
95% RH at 25°C cyclic
93% RH at 40°C,
95% RH at 25°C
Operating
80% RH at 40°C
80% RH at 40°C
Safety
Designed to
incorporate where appropriate
IEC1010-1, safety class I.
Safety interlock to BS5304
(1988) ‘Guarding of Machinery’ standard.
Meets the
requirements of IEC1010-1 (1991)
Safety interlock to BS5304 (1988)
‘Guarding of Machinery’ standard.
Other
RS232 output plus
optional printer kit
Includes battery charger and four test
Option to set pass/fail breakdown values.
RS232C 5 pin DIN
socket
Five custom tests
allowing; 1 to 99 tests
0,5 to 5 kV/s rate of voltage rise
0 to 99 min. 59 s stir and stand times
Averaging start from first to last test
Printer Information
The OTS60PB
Printer kit includes a 24 column impact printer with
integral rechargeable batteries and mains adapter which
operates from 85V to 265 V AC 50/60Hz. The printer
measures 105mm x 195mm x 90mm and weighs 625g.
