Fluke 9150 12 Maintenance

12 Maintenance

•The calibration instrument has been designed with the utmost care. Ease

of operation and simplicity of maintenance have been a central theme in

the product development. Therefore, with proper care the instrument

should require very little maintenance. Avoid operating the instrument in

an oily, wet, dirty, or dusty environment.

•If the outside of the instrument becomes soiled, it may be wiped clean

with a damp cloth and mild detergent. Do not use harsh chemicals on the

surface which may damage the paint.

•Be sure that the well of the furnace is kept clean and clear of any foreign

matter. DO NOT use fluids to clean out the well.

•If a hazardous material is split on or inside the equipment, the user is re-

sponsible for taking the appropriate decontamination steps as outlined by

the national safety council with respect to the material.

•If the mains supply cord becomes damaged, replace it with a cord of the

appropriate gauge wire for the current of the instrument. If there are any

questions, call Hart Scientific Customer Service for more information.

•Before using any cleaning or decontamination method except those rec-

ommended by Hart, users should check with Hart Scientific Customer

Service to be sure that the proposed method will not damage the equip-

ment.

•If the instrument is used in a manner not in accordance with the equip-

ment design, the operation of the furnace may be impaired or safety haz-

ards may arise.

•The over-temperature cutout should be checked every 6 months to see that

it is working properly.

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12 Maintenance

Contents

Main Page Table of Contents 9 Digital Communication Interface . . . . . . . . . . . . . . . . 37 10 Test Probe Calibration . . . . . . . . . . . . . . . . . . . . . . 43 Page 1 Before You Start 1.1 Symbols Used 1.2 Safety Information 1.2.1 WARNINGS 1.2.2 CAUTIONS 1.3 Authorized Service Centers Page 2 Introduction 3 Specifications and Environmental Conditions 3.1 Specifications 3.2 Environmental Conditions 3.3 Warranty 4 Safety Guidelines 5 Quick Start 5.1 Unpacking 5.2 Set-Up 5.3 Power 5.4 Setting the Temperature 6 Parts and Controls 6.1 Back Panel 6.2 Front Panel 6.3 Constant Temperature Block Assembly 6.3.1 Constant Temperature Block 6.3.2 Probe Sleeves and Tongs Page 7 General Operation 7.1 Changing Display Units Un= C 7.2 Switching to 230V Operation 8 Controller Operation 8.1 Well Temperature 962.3 C 8.2 Temperature Set-point 8.2.1 Programmable Set-points Page S 8.3 Scan S 8.4 Ramp and Soak Program 8.4.1 Program Points 962.4 S+U S 8.4.3 Program Set-Points SP 1 SP 4 S 0962.7 0970.0 S Pt 4 S 00001 00200 S Sr 4 S 10.0 11.3 S 8.4.4 Program Function Mode Pf=1 Pf=4 S 8.4.5 Program Control P=OFF P=Go S 8.5 Secondary Menu 8.6 Heater Power 962.4 8.7 Set-point Voltage S 11.934U 8.8 Proportional Band S 11.934 U S ProP 30.0 30.5 S 8.9 Controller Configuration 8.10 Operating Parameters S 8.11 Serial Interface Parameters Page 8.12 Calibration Parameters Page 9 Digital Communication Interface 9.1 Serial Communications 9.1.1 Wiring 9.1.2 Setup 9.1.3 Serial Operation 9.2 Interface Commands Table 2 Communications Command Summary 9 Digital Communication Interface Interface Commands Table 3 Communications Commands Summary continued Table 4 Communications Commands Summary continued 10 Test Probe Calibration 10.1 Calibrating a Single Probe 10.2 Furnace Characteristics 10.2.1 Stabilization and Accuracy Page 11 Calibration Procedure 11.1 Calibration Points 11.2 Calibration Procedure Page 12 Maintenance 13 Troubleshooting 13.1 Troubleshooting Problems,Possible Causes, and Solutions 13.2 Comments 13.2.1 EMC Directive 13.2.2 Low Voltage Directive (Safety)