Electrical Power & Protection


Four-digit multifunction instrument

January 2025 Electrical Power & Protection

The OM 403 model series comprises four-digit panel programmable instruments designed for maximum usefulness and user comfort, while maintaining their fair price. Type OM 402UNI is a multifunction instrument with the possibility of configuration for eight different input options, easily configurable in the instrument menu. By further options of input modules, it is feasible to measure larger ranges of DC voltage and current or to increase the number of inputs up to four (applies for PM). The instrument is based on a single-chip microcontroller with a multichannel 24-bit sigma-delta converter, which ensure good accuracy, stability and easy operation of the instrument. Features include:

• Four-digit programmable projection.

• Multifunction input UNI (DC, PM, RTD, T/C, DU).

• Digital filters, tare, linearisation, excitation.

• Size of DIN 96 x 48 mm.

• Power supply 10…30 V AC/DC or 80…250 V AC/DC.


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