Digital Indicators and Panel Meters > Process Signal Indicators > Precision Digital PD685, PD686, PD687


Precision Digital PD685 and PD686 3-1/2 Digit Loop-Powered Meters

These Precision Digital loop-powered indicators offer wide temperature range, low one-volt drop, and large 1"-tall digits that are easy to see at a distance. Calibration is a quick two-step process involving the adjustment of two non-interacting potentiometers. The only tools you need are a calibrated current source and a screwdriver.

PD685 is a low-cost, NEMA 4X indicator that can be installed in both indoor and outdoor general purpose applications. PD686 adds FM and CSA approvals for use in intrinsically safe and non-incendive installations.

The PD687 has been retired and is no longer available. Call for a suitable replacement unit.

Key Specifications

  • 4-20 mA Input
  • NEMA 4X (PD685/686) or NEMA 4, 7, 9/IP66 (PD687)
  • 1 V Drop
  • 3-1/2 Digit LCD with 1" (25.4 mm) Tall Digits
  • Operating Temperature Range: -40° to 85°C
  • 1/2" Conduit Hole or 3/4" Conduit Hold (PD687) Provided

Specifications, Manuals, and Supporting Literature

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Model Selection Guide

Use this table to find the right model for your application.  Don't see the option you need? Call a Lesman sales specialist at 800-953-7626

Description Catalog Number
Loop-Powered Indicators in NEMA 4X Enclosures
3-1/2 Digit, 1" LCD, FM/CSA Approval PD686
Panel Mount Kit for PD675 and PD686 PDA6844


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