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5623A

Platinum Resistance Thermometer

User’s Guide

Rev. 5A1101

Hart Scientific

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Summary of Contents for Hart Scientific 5623A

Page 1: ...5623A Platinum Resistance Thermometer User s Guide Rev 5A1101 Hart Scientific ...

Page 2: ...ientific Division 799 E Utah Valley Drive American Fork UT 84003 9775 USA Phone 1 801 763 1600 Telefax 1 801 763 1010 E mail support hartscientific com www hartscientific com Subject to change without notice Copyright 2004 Printed in USA ...

Page 3: ...troduction 5 2 1 General 5 2 2 Recalibration 5 3 Specifications and Warranty 7 3 1 Specifications 7 3 2 Warranty 7 4 Installation 9 4 1 Lead Wire Identification 9 5 PRT Care and Handling Guidelines 11 5 1 PRT Care 11 5 2 PRT Handling Guidelines 11 6 Operation 13 6 1 General 13 6 2 Immersion Requirements 13 6 3 Thermal EMF 13 7 Troubleshooting 15 7 1 Troubleshooting 15 i ...

Page 4: ...ii Figures Figure 1 PRT Schematic 9 ...

Page 5: ...iii Tables Table 1 International Electrical Symbols 1 Table 2 Specifications 7 ...

Page 6: ... on the instrument or in this manual Symbol Description AC Alternating Current AC DC Battery CE Complies with European Union Directives DC Double Insulated Electric Shock Fuse PE Ground Hot Surface Burn Hazard Read the User s Manual Important Information Off On 5623A 1 1 Before You Start Table 1 International Electrical Symbols ...

Page 7: ...ser Caution identifies conditions and actions that may damage the instrument be ing used 1 2 1 Warnings To avoid personal injury follow these guidelines DO NOT use this instrument to measure the temperature of any hazard ous live component Use of this instrument at high temperatures for extended periods of time can cause the handle to become hot Follow all safety guidelines listed in the user s ma...

Page 8: ...ey Drive American Fork UT 84003 9775 USA Phone 1 801 763 1600 Telefax 1 801 763 1010 E mail support hartscientific com Fluke Nederland B V Customer Support Services Science Park Eindhoven 5108 5692 EC Son NETHERLANDS Phone 31 402 675300 Telefax 31 402 675321 E mail ServiceDesk fluke nl Fluke Int l Corporation Service Center Instrimpex Room 2301 Sciteck Tower 22 Jianguomenwai Dajie Chao Yang Distri...

Page 9: ... 15 06 Ue Square 239920 SINGAPORE Phone 65 737 2922 Telefax 65 737 5155 E mail antng singa fluke com When contacting these Service Centers for support please have the following information available Model Number Serial Number Complete description of the problem 4 Hart Scientific 1 Before You Start ...

Page 10: ...m 200 C to 156 C Standard length is 6 inches Custom lengths are available on request 2 2 Recalibration The recalibration of the 5623A PRT should be scheduled according to the user s company Quality Assurance requirements Normally a PRT is recalibrated annually Unless the PRT is used only over a limited range calibra tion over the full range of the PRT 200 C to 156 C is recommended For in formation...

Page 11: ...duct catalog from the date of shipment This warranty extends only to the original purchaser and shall not apply to any product which in Hart s sole opinion has been subject to misuse alteration abuse or abnormal conditions of operation or handling Software is warranted to operate in accordance with its programmed instruc tions on appropriate Hart products It is not warranted to be error free Hart ...

Page 12: ...it damage THE FOREGOING WARRANTY IS PURCHASER S SOLE AND EXCLU SIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EX PRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR USE HART SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAM AGES OR LOSS WHETHER IN CONTRACT TORT OR OTHERWISE 8 Hart Scientific 3...

Page 13: ... used to cancel lead wire resistance For best results the readout de vice should be equipped to handle four terminal resistors The lead wires are two different colors Lead wire pairs attached to each end of the sensor are identified by red and white insulation 5623A 9 4 Installation White Red White Red Figure 1 PRT Schematic ...

Page 14: ...ip in and out without excess movement For best results immerse the thermometer as deep as possible to avoid stem effect the temperature error caused by the conduction of heat away from the sen sor DO allow sufficient time for the thermometer to stabilize before making measurements This allows for the best accuracy DO use the correct drive current with the thermometer to prevent error in temperatur...

Page 15: ... DO NOT screw a clamp down so tight that it dents the sheath This can permanently damage the PRT 12 Hart Scientific 5 PRT Care and Handling Guidelines ...

Page 16: ...th required can be determined by performing a gradi ent test taking measurements approximately every 1 27 cm 5 inches until there is a significant difference in readings Allow the thermometer to stabilize at each new depth Plot the results to see the stem effect 6 3 Thermal EMF Two factors contribute to thermal EMF chemical consistency and physical con sistency Variations in chemical structure due...

Page 17: ...Scientific Service Center see Section 1 3 The PRT may be damaged If the data is unstable at high temperatures it may be due to electrical noise in the system Reduce the temperature and observe the data If it is stable electrical noise is interfering with the measurements at high temperatures Check the grounding of the readout device and the heat source A faulty ground on either device could interf...

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