DIGI-STAR EZ 150, EZ 210, EZ 320 Troubleshooting Manual

Scale System

Troubleshooting Guide

for

Digi-Star Scales with

EZ 150, EZ 210 and EZ 320

Indicators

F3214B December 1997

Table Of Contents

Symptoms

Troubleshooting Guide

Digi-Star Indicators ........................ 1

Introduction .............................. 2

Indicator Flashes “±RANGE” .............. 3

Indicator Will Not Come On ................ 4

Indicator Will Not Weigh .................. 6

Indicator Unstable (Drifts) ................. 6

System Inaccurate ....................... 7

Indicator Will Not Balance (zero) ........... 9

Testing the Indicator Using Simulator ......... 9

Inspect Junction Box Wiring ................ 10

Test the Junction Box ..................... 10

Testing the Load Cells .................... 11

Load Cell Resistance Chart ................ 12

EZ Indicators

EZ 150

EZ 210

EZ 320

Introduction

There are many scale applications, each using a variety of load cells and indicators.
Platform (large decks and animal)
Mobile Grain Cart (3 or 4 point)
Stationary Mixer
Bulk Feed Tanks (poultry, veal)
Others
This guide includes troubleshooting flowcharts and step by step procedures for

troubleshooting problems commonly found with most Digi-Star scale systems.

Required Tools

Multimeter [AC/DC Volts and Resistance]
Simulator (sold by Digi-Star)
Small Screwdriver (straight blade)
#2 Phillips Screwdriver

Digi-Star Scales

The basic elements of the Digi-Star scale system are:
Indicator
Load Cells (3 to 8 cells per system)
Junction Box
Power Supply (Battery or AC/DC Converter)