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Avery Weigh-Tronix 7820-50 User Manual

Avery Weigh-Tronix 7820-50
40 pages
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Model 7800 Family
Weight Classifiers
User Instructions
AWT35-501540
Issue AA
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Avery Weigh-Tronix 7820-50 Specifications

General IconGeneral
Capacity50 lb
Display6-digit LCD
Readability0.01 lb
InterfaceRS-232
Tare FunctionYes
MaterialStainless Steel
PowerAC adapter or optional battery pack
Power SourceAC Adapter
Unitslb, kg

Summary

General Information and Warnings

Installation Safety

Provides safety warnings and instructions for installing the scale, including electrical safety and placement.

Electrical Installation Details

Details requirements for connecting the power cable to a grounded outlet and using appropriate protection for wet conditions.

Specifications Overview

Power Supply Requirements

Details the power supply specifications, including UL/CSA approval, input voltage, and output DC voltage and amperage.

Communication Interface Options

Details factory default communication settings and available interface options (RS232, USB VCP, USB HID).

Initial Setup Procedures

Installing the Scale on a Surface

Instructs on mounting the scale on a stable, level surface and how to use dimensions for countertop installation.

Scale Operation Guide

Performing a Normal Weighment

Guides users through the process of performing a normal weighing, including zeroing the scale and placing items.

Accessing Menu Modes

Overview of Menu Modes

Outlines the four available modes (DIAG, CONF, CAL, RE-CAL) when Switch 1 is in the Menu or OPEN position.

Diagnostic (DIAG) Mode Usage

Describes how to access and use the Diagnostic mode for testing scale functions and viewing configuration settings.

Configuration Mode Settings

Explains how to configure the scale's settings such as Filtering, Baud Rate, Protocol, and Printout formats.

Configuration Mode Steps

Provides step-by-step instructions for configuring filtering, baud rate, and protocol settings within the Configuration Mode.

Scale Print Modes Explained

Details three options for transmitting weight data: AUTO-1, AUTO-2, and PRINT, and their operational differences.

Step-by-Step Calibration

Provides detailed steps for calibrating the scale, including selecting units, capacity, and applying weights.

Re-Calibration Mode Options

Allows changing scale resolution or rounding method without calibration weights.

Re-Calibration Procedure

Provides steps to re-configure scale resolution or rounding method without using calibration weights.

Communication and Connectivity

Standard Serial Commands

Lists standard serial commands like W<CR> and S<CR> for scale response and status.

Optional Serial Commands

Details optional serial commands like H<CR> for returning weight data and 'd<CR>' for factory diagnostics.

Troubleshooting and Error Codes

Troubleshooting No Power

Provides systematic steps to resolve issues when the scale display is blank.

Troubleshooting Zeroing Issues

Offers troubleshooting steps for issues where the scale fails to return to zero or displays incorrect weights.

Troubleshooting Over Capacity

Offers troubleshooting steps for 'over capacity' indications shown by dashes on the display.

Troubleshooting Data Transmission

Details troubleshooting for issues where the scale fails to transmit data to a host device.

Troubleshooting Keypad Functionality

Provides steps to fix problems where the ZERO and TEST keys on the front panel are not working.

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