Precision Digital Corporation PD690 Series User Manual

D I G I T A L PA N E L M E T E R S
Model PD690 Universal Process Meter
Instruction Manual
• Easy Single Button Scaling (SBS)
• 4-20 mA, 0-5 V, or 0-10 V Field Selectable Inputs
• 24 V Transmitter Power Supply Standard
• Scale Without a Calibrator
• Calibrate with a Signal Source
• Steady, Accurate Display to ± 199,990
• 11-Point Linearization for Non-Linear Inputs
• Square Root Extraction with Low-Flow Cutoff
• 4
1
/2 Digit + Extra Zero
• NEMA 4X, IP65 Front Panel
• 2 or 4 Relays + 4-20 mA Output Options
• 115 VAC, 230 VAC, or 24 VDC Power Options
• Lockout Feature
• Non-Volatile Memory, No Battery Needed
PRECISION DIGITAL CORPORATION
19 Strathmore Road • Natick MA 01760 USA
Tel 800-610-5239
• Fax 508-655-8990
www.predig.com
®

Precision Digital Corporation PD690 Series Specifications

General

Display	LCD
Protection Rating	IP65
Housing Material	Polycarbonate
Input Type	Voltage, Current, Resistance, Frequency
Approval	CE, UL
NEMA Rating	NEMA 4X

Summary

DIGITAL PANEL METERS

INTRODUCTION

Safety Notice

Crucial warnings for safe installation and operation.

SPECIFICATIONS

Detailed Specifications

Linearization, Alarms, and Lockout

Covers 11-point linearization, alarm points, deadbands, and lockout jumper.

Setup and Connections

AC Powered Meter Wiring

AC Powered Meter Inputs

DC Powered Meter Wiring

Relays & 4-20 mA Output

4-20 mA Output Loop

Output Loop Powering Options

Illustrates meter or external supply powering the 4-20 mA output loop.

Programming Overview

Single Button Scaling (SBS)

Explains the SBS technique for meter programming.

Calibration Process

Two-Point External Calibration Flow Chart

Flow chart for calibrating the meter using an external source.

Basic Meter Programming

Input Signal Configuration

Initial Calibration Procedure

Procedure for initial calibration with an external source.

Calibration Method Selection

Scale or Calibrate Meter Options

Steps to choose between external (E-CAL) and internal (I-CAL) calibration.

General Calibration/Scaling

Scale Using Internal Calibration

Steps to scale the meter using the internal calibration method.

External Calibration

Calibrate Using External Calibrator

Procedure for calibrating with an external signal source.

Square Root Extraction & Cutoff

Square Root Extraction Function

How to activate and calibrate square root extraction for flow measurement.

Program Low-Flow Cutoff

Steps to set a low-flow cutoff value to display zero for unsteady low rates.

4-20 mA Output Programming

Setting 4 mA and 20 mA Output Values

Instructions for programming the 4-20 mA output span without a calibrator.

Alarm Programming

Setting Alarm Set & Reset Points

Guide to programming high/low alarms and deadbands for four alarm points.

Alarm Operation and Reset

Fail-Safe Relay Operation

Relay Reset Options

Load Protection and Reset

Reset Meter to Factory Defaults

Step-by-step guide to restoring factory default settings.

How to Contact Precision Digital

Support and Service Information