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Grant SAP Series User Manual

Grant SAP Series
23 pages
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Unstirred water bath
SAP, JBA & JBN
Service Manual
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Grant SAP Series Specifications

General IconGeneral
Speed range30 - 300 rpm
Temperature RangeAmbient +5°C
Shaking Speed20-300 rpm
MaterialStainless steel
Power Supply50/60Hz
Timer0-999 minutes

Summary

Introduction

Service Address

Contact information for Grant Instruments service department.

Servicing Advice

Guidelines for qualified personnel performing maintenance and repairs.

Cautions & Warnings

Defines the meaning of CAUTION and WARNING statements used in the manual.

Electrical Safety

Outlines electrical safety requirements and precautions for the water bath.

Product Description

SAP, JBA & JBN range

Details the available models and serial number ranges covered by this manual.

Basic Description

Describes the general construction and major component parts of the water bath.

Dismantling a unit

Provides instructions and lists tools required for disassembling the water bath unit.

Removing the base plate

Step-by-step guide for safely removing the base plate from the unit.

Removing the tank, heater and probe assembly

Instructions for disconnecting and removing the tank, heater, and probe assembly.

Removing the PCB assembly

Details the process for disconnecting and removing the Control and Display PCB.

Removing the front panel membrane keypad

Procedure for safely detaching and removing the front panel membrane keypad.

Reassembling the unit

Guidelines for reassembling the unit, ensuring correct component seating and connections.

System Schematic & Interconnect Diagram

Presents the electrical schematic and interconnect diagram of the system.

Common service tasks

Resetting the Over-temperature Cut-out

Procedure to reset the over-temperature cut-out when triggered.

Replacing a tank, heater and probe assembly

Steps for replacing the entire tank, heater, and probe assembly.

Replacing the fuses

Instructions for identifying, testing, and replacing fuses on the PCB.

Replacing Control and Display PCB

Guide for replacing the Control and Display PCB assembly with a new unit.

Fault Diagnostics and Test

Test Equipment & Tools Required

Lists the essential test equipment and tools needed for fault finding.

Testing and Fault finding

Overview of the process for diagnosing faults and verifying functionality post-repair.

Test/fault-finding flowchart

A flowchart to guide users through systematic troubleshooting of common issues.

Useful values for fault finding

Provides typical resistance values for key components for diagnostic purposes.

Final Tests – Electrical Safety

Procedures for conducting essential electrical safety tests after repairs.

Check Earth Connection

Method for verifying the integrity of the unit's earth connection.

Check Insulation

Procedure for testing the electrical insulation of the unit.

Routine testing

Recommendations for performing periodic electrical safety and performance tests.

List of display messages

Explanations of the various messages that can be displayed by the unit.

Operating Messages

Details the meaning of normal operational messages shown on the display.

Fault/Diagnostic Messages

Lists and explains fault and diagnostic messages indicating errors or conditions.

Service Parts

Other Technical Documentation

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