Acromag Vertu VPM3000 Series universal input displays

Acromag’s Vertu brand of innovative instrumentation has released the VPM3000 Series of universal input displays with transmitter and alarm capabilities. The instruments combine the digital indicator function of a panel meter with optional signal conditioning for 4–20 mA transmitter output and/or alarm trip solid-state relays.

Big and bright 31 mm-high numerals are clearly visible from far away, even in bright sunlight. Field-selectable inputs accept process current/voltage and temperature sensor signals including 4–20 mA, ±20 mA, 0–10 V, ±10 V, Pt 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.

The displays are easy to set up and install. Units are configurable using the front-panel push-buttons, free Windows software or a copy function from other units. Models are available for operation from 85–265 VAC or 12–36 VDC power sources. AC units can provide single or dual isolated 24 VDC supplies to power a 4–20 mA transmitter or other instruments. A shallow-depth 1/8 DIN enclosure with a NEMA 4X front panel simplifies installation. UL/cUL listing meets industrial control equipment safety requirements.

The versatile signal conditioners can satisfy requirements for a process or temperature transmitter, alarm trips and high-visibility display with a single unit. In addition to converting sensor signals to a scaled 4–20 mA current for retransmission to controllers or recorders, units can perform flow computation functions. They can also be used for process on/off control and pump alternation applications. For desktop monitoring and data acquisition applications, the free software can display and log data from multiple meters on the user’s PC.