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BEAMEX TC305 - User Manual

BEAMEX TC305
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Service manual for
TEMPERATURE CALIBRATOR
TC305/TC303
Dear user,
We have made every effort to ensure the accuracy of the
contents of this manual. Should any errors be detected, we
would greatly appreciate to receive suggestions to improve the
quality of the contents of this manual.
The above not withstanding, we can assume no responsibility
for any errors in this manual or their eventual consequences.
We reserve rights to make modifications to this manual without
any further notice.
For more detailed technical data about the Service manual for
TC305/TC303, please contact the manufacturer.
© Copyright 1997
OY BEAMEX AB
P.O. Box 5
68601 Pietarsaari
FINLAND
Tel +358 - 6 - 7840111
Fax +358 - 6 - 7840404
E-mail: sales@beamex.com
Internet: http://www.beamex.com
8830100 / SETC305 / 912417

Table of Contents

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Summary

Functional Description

1 GENERAL

Divides calibrator functions into Measure/Generate (A-section) and Measure (B-section) functional blocks.

2 SECTION A

Explains A-section microprocessor's role in electrical measurements and simulations using ADC/DAC.

3 SECTION B

Describes B-section microprocessor's function in measuring, switch detection, and serial communication.

Service

1 WARNING DURING OPERATION

Explains operational warning messages like NO TCAL, NO ID, and various ERROR codes.

2 HARDWARE ERROR MESSAGES

Lists and describes hardware error codes, their potential causes, and troubleshooting guidance.

3 SERVICE, TROUBLESHOOTING AND REPAIR

Provides guidance on troubleshooting, repair, and disassembly/reassembly for maintenance.

3.1 Disassembling and Reassembling the Calibrator

Details steps for safely taking apart and reassembling the calibrator for maintenance or upgrades.

3.2 Updating the Software Version

Explains installing new software versions by replacing EPROMs on processor boards.

3.3 Installing Software Options

Describes how to purchase and install software options using security codes and serial numbers.

3.4 Replacing the Battery Pack

Provides instructions for replacing the calibrator's internal battery pack to maintain data.

3.5 Hardware Troubleshooting

Offers guidance on diagnosing hardware faults by examining specific assemblies and components.

Calibration

1 GENERAL

Discusses tolerances, component accuracy, and the necessity of periodic calibration for maintaining accuracy.

2 EQUIPMENT REQUIRED FOR CALIBRATION

Lists essential equipment for calibration, including DC calibrators, meters, resistors, and thermocouples.

3 PREPARATIONS BEFORE CALIBRATION

Outlines necessary environmental conditions and pre-calibration checks for optimal accuracy.

4 SECTION B MEASUREMENTS

Details calibrating B-section measurements using specific codes, signals, and calibration points.

5 SECTION A MEASUREMENTS

Explains calibrating A-section measurements, including signal connection, value entry, and saving factors.

6 RESISTANCE SIMULATION

Describes resistance simulation calibration, equipment, connection requirements, and calibration points.

7 INTERNAL REFERENCE JUNCTION COMPENSATION

Covers calibration for internal reference junction compensation using thermocouples or thermometers.

7.1 Calibration with thermocouple

Details the process of calibrating reference junction compensation using a thermocouple.

7.2 Calibration with a thermometer

Explains calibrating reference junction compensation using a small temperature sensor.

8 CALIBRATION DATE

Explains how to save or change the calibration dates for both A and B sections.

9 AUTO CALIBRATION OF GENERATION RANGES

Describes auto calibration for mA, mV, V generation ranges to improve ramp function and settling time.

10 CALIBRATION PERIOD

Allows setting the calibration period, with factory default at 6 months, and managing calibration reminders.

Serial Communication

1 GENERAL

Details the TC305/TC303 computer interface, connection requirements, and warnings about signal levels.

2 TECHNICAL SPECIFICATIONS

Lists interface specs: baud rate, parity, data bits, flow control, and error checks.

3 COMMANDS

Explains the structure and usage of standard and special commands for controlling the calibrator.

3.1 Interface Configuration and Control

Covers commands for communication control (checksum, acknowledgement) and line termination settings.

3.2 Device Configuration

Details commands for configuring electrical units, temperature modes, sensor types, and scales.

3.3 Calibration and Service

Lists commands for enabling calibration, performing specific routines, and setting serial numbers.

3.4 Commands for Key Emulation; Inquiry

Describes commands that can get or emulate key presses on the calibrator's keypad.

3.5 Other Standard Commands

Covers commands for retrieving system details, setting/getting the date, and displaying messages.

3.6 Special Commands

Explains special commands like RESET305 for factory settings and CAL305 for enabling calibration.

Appendixes

APPENDIX A: STATUS CODE; ERROR MESSAGES IN SERIAL COMMUNICATION

Lists and describes status codes and error messages encountered during serial communication.

APPENDIX B: MEASUREMENT PRINTOUT FORMAT

Details the character-by-character format of measurement printout lines and their positions.

APPENDIX C: ALGORITHMS

Provides an algorithm for calculating checksums, likely for serial communication.

APPENDIX D: TC305;TC303 RS-232 SAVEABLE OPTIONS

Lists RS-232 options that can be saved or restored, affecting communication behavior.

BEAMEX TC305 Specifications

General IconGeneral
BrandBEAMEX
ModelTC305
CategoryTest Equipment
LanguageEnglish

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