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MEGOHMMETER
A MEGOHMMETER IS A HIGH RESISTANCE METER DEDICATED TO MEASURE AN OHMIC VALUE UNDER A DIRECT VOLTAGE OF GREAT STABILITY
To measure a high value resistance, techniques for measuring a low value current are used. A constant voltage source (DC Voltage) is applied to the resistance to be measured and the resulting current is read on a highly sensitive ammeter circuit that can display the resistance value (in MΩ, GΩ, TΩ)
A Megohmmeter is also called a high resistance tester, a teraohmmeter , a megger, a high insulation tester
Megohmmeter selector guide
Sefelec megohmmeter range
|
Resistance range |
DC voltage |
Accuracy |
Pico-ammeter |
Interface |
Portative |
Software |
|
2kΩ-2TΩ |
50,100,250,500,1000 |
5% |
No |
No |
Yes |
No |
Megohmmeter
CA6543
 |
2kΩ-2TΩ |
50,100,250,500,1000 |
5% |
No |
RS232 |
Yes |
No |
|
10kΩ-10TΩ |
500,1000, 2500, 5000 |
5% |
No |
No |
Yes |
No |
Megohmmeter
CA6545
 |
10kΩ-10TΩ |
500,1000,2500,5000 |
5% |
No |
No |
Yes |
No |
Megohmmeter
CA6547
|
10kΩ-10TΩ |
500,1000,2500,5000 |
5% |
No |
RS232 |
Yes |
Yes |
Megohmmeter
CA6549
 |
10kΩ-10TΩ |
500,1000,2500,5000 |
5% |
No |
RS232 |
Yes |
Yes |
Megohmmeter
CA6550
 |
10kΩ-25TΩ |
500,1000,2500,5000, 10 000 |
5% |
No |
USB/RS232 |
Yes |
Yes |
Megohmmeter
CA6555
 |
10kΩ-30TΩ |
500,1000,2500,5000, 10 000, 15 000 |
5% |
No |
USB/RS232 |
Yes |
Yes |
Megohmmeter
MXS500
|
50kΩ -
2TΩ |
10-500(1V steps) |
±(1% + 1V) |
No |
RS232 included
GPIB, PLC, Ethernet in option |
No |
Winpass-MX |
|
50kΩ -2TΩ |
20-1000 (1V steps) |
1,5% |
No |
RS232 included, GPIB, PLC, Ethernet
in option |
No |
Winpass-MX |
Megohmmeter
M1501P
|
100Ω -2000TΩ |
1-1500 (1V steps)
option up to
70 kV DC |
0,2% |
0,01pA-20mA |
GPIB included RS232, PLC,
0-10V analog output
in option |
No |
No |
Megohmmeter
M1501M
|
1kΩ -2000TΩ |
1-1500 (1V steps)
option up to
70 kV DC |
0,2% |
0,01pA-20mA |
RS232 in option |
No |
No |
| Isoscan S.I.R. testing with M1501P |
1MΩ -2000TΩ |
1-1500 (1V steps ) for measurement & polarisation (BIAS) |
0,2% |
0,01pA-20mA |
GPIB included |
No |
Isoscan |
REMA Series
 |
we also manufacture a wide range of high value standard resistors from 1MΩ to 100TΩ |
APPLICATION
MANUFACTURER, LABORATORY, HIGH SPEED PRODUCTION, MAINTENANCE
•cable manufacturer (measure made on reel, on 1m cable samples, … > shielding against wires)
•transformers, coils, electrical motors
•components (capacitors, resistances, …)
•aeronautic, aerospace sub assemblies (satelites panels, …)
•connector, switches
•test laboratories (insulated materials such as paper, ceramic, plastics, ...)
•car industry (splices, cable samples in salty water, …)
•printed circuit boards
SPECIFICATION OVERVIEW
FROM PORTABLE TO DESKTOP SOLUTIONS, FROM HAND USE TO REMOTE CONTROLLED
USE, OUR RANGE COVER THEM ALL
•resistance measurement up to 2000 TΩ
•DC Voltage from 1V up to 70 kVDC (1V steps)
•picoammeter function from 0.1 pA
•GPIB, RS232, 0-10V, PLC available
•high accuracy down to 0.2%
•Surface Insulation Resistance (S.I.R.) testing according to IPC-TM-650 2.6.3.3, DIN 32513, ANSI/J-STD-004, Bellcore GR-78,
JIS Z 3284, … with IsoScan switching matrix
•Surface and resistance measurement according to DIN53482, VDE0303, IEC93 with our SRE24 probe
Click here to download the above information in pdf format
Cable testing combined with electrical safety testing and measuring instruments is our added value. As a producer of those 3 product families, Sefelec is the unique, worldwide, to have this cable tester global solution.
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