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MEGOHMETRO
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
APPLICATION
SPECIFICATION OVERVIEW
Megohmetro selector guide
Sefelec megohmetro |
Resistancia |
Tensión en CC |
Precisión |
Pico-amperiometro |
Interfaz |
Portátil |
Software
(in option) |
|
2kΩ -2TΩ |
50,100,250,500,1000 |
5% |
No |
No |
Si |
No |
|
2kΩ -2TΩ |
50,100,250,500,1000 |
5% |
No |
RS232 |
Si |
No |
|
30kΩ -10TΩ |
500,1000,2500,5000 |
5% |
No |
No |
Si |
No |
|
30kΩ -10TΩ |
500,1000,2500,5000 |
5% |
No |
RS232 |
Si |
No |
|
50kΩ -2TΩ |
20-1000 (1V steps) |
1,5% |
No |
RS232 included, GPIB, PLC, Ethernet
in option |
No |
SXS Pro |
|
50kΩ -200GΩ
2TΩ option |
50,100,250,500 |
1,5% |
No |
GPIB, PLC, RS232,
0-10V analog output
in option |
No |
SMG Pro |
|
100Ω -2000TΩ |
1-1500 (1V steps)
option up to 70 kV DC |
0,2% |
0,01pA-20mA |
RS232 option |
No |
No |
|
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 |
|
5kΩ -20TΩ |
10-1500 (10V steps) |
0,2% |
50pA-3mA |
No |
No |
No |
|
0.01Ω -20MΩ |
45, 500 |
1% |
No |
No |
Si |
No |
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
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