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Universal input display has transmitter and alarm features

| By Chemical Engineering


The new VPM3000 Series of universal input displays (photo) with transmitter and alarm capabilities combines the digital indicator function of a panel meter with optional signal conditioning for 4–20-mA transmitter output and alarm trip solid-state relays. The devices are able to operate as a transmitter or alarm to satisfy a wide variety of process and temperature applications. Field-selectable inputs accept process current/voltage and temperature sensor signals, including 4–20 mA,±20 mA, 0–10 V,±10 V, Pt resistance temperature detectors (RTDs), and most common thermocouple varieties. For additional versatility, units can provide power to drive a 4–20-mA transmitter and other instruments. Modbus RTU serial communication is also supported. — Acromag, Inc., Wixom, Mich.