Section 1 Introduction And General Guidelines; About This Manual - Teledyne 4700 Serivce Manual

4700 Refrigerated Sampler
Service Guide

Section 1 Introduction and General Guidelines

1.1 About this Manual

Teledyne Isco, Inc.
4700 Superior St.
Lincoln NE 68504
Phone: (800) 228-4373 or
(402) 464-0231
Fax: (402) 465-3001
E-mail:
IscoService@teledyne.com
This manual contains servicing information for the model 4700
indoor/outdoor refrigerated sampler. The manual contains four
sections and three appendices.
Section 1, Introduction and General Guidelines, contains safety
and technical information about the sampler. It also provides
general information about upkeep and maintenance, procedures
for removal/replacement of modular components, and procedures
for opening and closing the refrigerator's rear compartment.
Section 2, Sample Delivery System, contains service and
replacement information for the pump and distributor modules
and their components.
Section 3, Refrigeration System, provides instructions for trou-
bleshooting, servicing, and replacing the temperature sensors
and refrigeration system and its components.
Section 4, CPU and Power Supply, contains a detailed
description of the CPU board and test points, CPU board tests,
and instructions for removal/replacement of the control panel,
power supply, and line cord.
Section 5, Electrical Troubleshooting and Diagnostics, contains
diagnostic testing and troubleshooting steps.
Appendix A, Electrical Diagrams, contains wiring and com-
ponent diagrams and an electrical schematic, as well as instruc-
tions for accessing electrical schematics on the Teledyne Isco web
site.
Appendix B, Replacement Parts List, contains drawings and
order numbers for all replaceable parts, as well as ordering infor-
mation. Refer to this appendix for complete listings of all
replaceable parts described in this manual.
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