Yokogawa UM331 Digital Indicator

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The Yokogawa UM33A Digital Indicator is a suitable replacement

Effective July 9th, 2025 Yokogawa has added a 4.5% surcharge to this product. The surcharge will appear as a separate line item on each sales order.

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Manufactured

By Yokogawa

Includes

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Features

20mm LEDs used for the process variable display
PV display color changing function.
Universal input allows simple setting of the input types
Various communication functions provided

The Yokogawa UM331 digital indicator with alarms is a precision 1/8 DIN alarm instrument provided with universal input. For excellent monitoring operability, the Yokogawa UM331 digital indicator has a large "active color PV display" which permits the PV display to change colors. The Yokogawa UM331 digital indicator is provided with three alarm setting points or setting outputs (a fourth is optional). A retransmission output and 15 V DC loop power supply are also provided as standard. A communication function and 24 V DC loop power supply are available as options to the Yokogawa UM331 digital indicator.

Functions of the Yokogawa UM331 Digital Indicator

Alarm

Six types of alarm functions are provided. The alarm status is indicated by the alarm lamp on the front panel. Also, four points among them (one is optional function> can be output as relay contact outputs.

Signal Computation

PV input computation: Bias addition (-100.0 to 100.0% of PV input range span), first-order lag filter (time constant off, 1 to 120 s). Contact input: Retains and displays peak and bottom values of PV input values. Resets the peak and bottom values.