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Resistance Measurement

2291, 2292

[ High Current Winding Resistance Meter ]

The 2291 and 2292 high current resistance meters are special designed for high performance measurement of high inductance, low value resistances such as transformer windings, motors, breakers, switchgear etc. Unlike normal resistance meters these instruments have a built-in high-speed discharge circuits for safe discharge of the stored energy in a measured inductance.
Operation is fully automatic and the powerful DC test current produces high accuracy and rapid saturation of the test object. So virtually all sizes of transformer can be measured.
Covered measuring range 1 uOhm - 20 kOhm, measuring current up to 33A (2291) respectively 50A (2292).

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2231

[ Portable Microohm Meter ]

The type 2231 is designed for measurement of contact resistance of such items as circuit breakers, switchgears or resistance measurement on fuses, cables splices, bus bars, welds, heating elements, battery terminal ballast, heater elements etc. The rugged field instrument can be battery operated. It has a full 4 wire Kelvin terminal configuration.
Covered measuring range 0.1uOhm - 400kOhm, measuring current up to 10A.

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2226

[ Microohm Meter ]

The 2226 is a digital micro-ohmmeter for fast and accurate low resistance measurements. The measuring current of 10A DC makes this instrument applicable for testing of motor coils, generators, smaller transformers, generator bars, copper wire and cable, cable screens, switches, relay contacts, shunts, potentiometers etc. Covered measuring range 0.1 uOhm - 20 kOhm, measuring current up to 10A.

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5478

[ Portable Teraohm Meter ]

The 5478 is a digital multipurpose tester intended for testing, analyzing, inspecting and periodic maintaining of any high voltage insulations. This instrument offers a complete set of functions to measure and detect effectively all parts of current in an insulation system. The instrument can supply an output power of 5 W and a test voltage of up to 5000 V and therefore measure insulation resistances up to 5 TOhm. Additionally step-up voltage measurement, withstand voltage measurement, AC/DC voltage and frequency measurements up to 600V can be performed.

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5476, 5476a

[ Megaohm Meter ]

The 5476 is a digital megaohmmeter for accurate measurement of high resistance insulation. It is typically used for cable insulation resistance measurements and can also be used for insulation material tests with the Tettex type 2903 and 2914 test cells.
The covered measuring range of this high precision instrument is 10 kOhm - 1 POhm.