Table Of Contents - Grainger 4802 Operating And Service Manual

Table of Contents

Weight Display2
Weighing Capacity2
Universal Power Supply2
Weighing Cradle2
Pediatric Weighing System3
Table Of Contents3
General Description5
Mechanical Features5
Section I5
Electronic Features6
Assembly – Set Up7
Assembly Instructions7
Check-Out7
Calibration8
Option Custom "Set-Up"8
Entering the "Set-Up" Mode8
Setting The Options8
On / (Off) / Zero11
Kilos / Pounds11
Reweigh11
Section Iii Operation Of Scale11
Ac Line Power Operation12
Audible Beeps12
Diaper Weighing Option12
Mobile Weighing Cart12
Set Up14
Storage14
Battery Replacement14
Maintenance14
Factory Returns15
Load Cell Transducer16
Scale Electronics16
Differential Signal Amplification16
Section Iv Technical Description16
Analog-To-Digital Conversion17
Phase 1, Auto Zero17
Phase 2, Signal Integrate17
Clock Circuit17
Voltage Regulation18
+9.5V/-7.5V Supply18
Battery Monitor18
Charge Monitor Circuit19
Microcomputer And Support Circuits19
Non-Volatile Memory19
Reset Generation20
Beeper20
Display Board And Keyboard20
Digit Display20
Power Supply21
Troubleshooting Procedures21
Display Does Not Illuminate21
Weight Reading Not Accurate21
Non-Functioning Key(S)22
Preparing For Calibration22
Entering The Calibration Mode22
Calibration Procedure23
Factory Service Help23
Parts List24
Warranty28