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Rev. 532801

Fluke Hart Scientific

• 799 E. Utah Valley Drive • American Fork, UT 84003-9775 • USA

Phone: +1.801.763.1600 • Telefax: +1.801.763.1010 • E-mail: [email protected]

www.hartscientific.com

Содержание 5626/5628

Страница 1: ...5626 5628 Platinum Resistance Thermometer User s Guide Rev 532801 Hart Scientific ...

Страница 2: ...entific 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 2005 Printed in USA ...

Страница 3: ...bration 6 3 Specifications and Warranty 7 3 1 Specifications 7 3 2 Construction 8 3 3 Electrical Circuit 8 3 4 Warranty 8 4 Installation 9 4 1 Environmental Issues 9 4 2 Mounting 9 4 3 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 Comparison Calibration of Other Instruments 13 6 3 Immersion Requirem...

Страница 4: ...7 1 Case Options 15 7 2 PRT Termination 15 8 Troubleshooting 17 8 1 Troubleshooting 17 ii ...

Страница 5: ...iii Figures Figure 1 Hart Model 5626 and 5628 Platinum Resistance Thermometers 5 Figure 2 Standard Dimensions 7 Figure 3 PRT Schematic 9 Figure 4 Probe Termination Examples 15 ...

Страница 6: ...iv Tables Table 1 International Electrical Symbols 1 Table 2 Specifications 7 ...

Страница 7: ...sed 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 1 1 Before You Start Table 1 International Electrical Symbols ...

Страница 8: ...fies conditions and actions that may pose hazards to the user Caution identifies conditions and actions that may damage the instrument being used 1 2 1 Warnings To avoid personal injury follow these guidelines DO NOT use this instrument to measure the temperature of any haz ardous live component DO NOT use this unit for any application other than calibration work DO NOT use this unit in environmen...

Страница 9: ...3 Hart Scientific Authorized Service Centers Please contact one of the following authorized Service Centers to coordinate service on your Hart product Hart Scientific Inc 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 Fluke Nederland B V Customer Support Services Science Park Eindhoven 5108 5692 EC Son NETHERLAN...

Страница 10: ...e Service Center 60 Alexandra Terrace 03 16 The Comtech Lobby D 118502 SINGAPORE Phone 65 6799 5588 Telefax 65 6799 5588 E mail antng singa fluke com When contacting these Service Centers for support please have the follow ing information available Model Number Serial Number Complete description of the problem 5626 5628 User s Guide 4 ...

Страница 11: ...c by experts with years of PRT manufacturing experience Each PRT is carefully annealed at the ap propriate temperatures and precisely tested for stability The sensing ele ment is fabricated using high purity platinum wire wound in a strain free design on a specially designed support The 1 4 inch O D Inconel 600 sheaths are sealed with a specially mixed gas and fit with a terminal box handle and st...

Страница 12: ...he recalibration of the 5626 5628 Secondary PRT should be scheduled ac cording to the user s company Quality Assurance requirements Normally a PRT is recalibrated annually Unless the PRT is used only over a limited range calibration over the full range of the PRT 196 C to 661 C is recom mended For information on recalibrating your 5626 or 5628 contact Hart Scientific s Customer Service department ...

Страница 13: ...bility 0 003 C 0 002 C Long Term Drift Rtp 0 03 C with 500 hours at 661 C 0 02 C with 500 hours at 661 C Sheath Inconel 600 Handle Temperature Range 0 C to 80 C Lead Wires 4 wire Super Flex PVC 22 AWG Termination Gold plated spade lugs Size 304 8 mm x 6 35 mm dia 12 L x 0 25 381 mm x 6 35 mm dia 15 L x 0 25 508 mm x 6 35 mm dia 20 L x 0 25 Table 2 Specifications 5626 SN 0021 562X 12 12 562X 15 15 ...

Страница 14: ...n structions on appropriate Hart products It is not warranted to be error free Hart s obligation under this warranty is limited to repair or replacement of a product which is returned to Hart within the warranty period and is deter mined upon examination by Hart to be defective If Hart determines that the defect or malfunction has been caused by misuse alteration abuse or abnormal conditions or op...

Страница 15: ...d to ensure the handle and cable are not immersed Do not screw the clamps too tight Over tightening will damage the sheath If metal comparison blocks are used in the bath maintain a close fit between the thermometer sheath and the well in the comparison block However allow for the ther mal expansion of the thermometer sheath when determining block well tolerances 4 3 Lead Wire Identification The 5...

Страница 16: ...mperatures The handle is not designed to be immersed The temperature limits of the handle are 0 C to 80 C Temperatures outside these limits can damage the sealed portion of the handle and the connectors 5 2 PRT Handling Guidelines DO anneal the thermometer after shipment Shipping the thermometer can cause mechanical shocks that effect the accuracy of the thermome ter Therefore if possible we advis...

Страница 17: ...tion when the thermometer is not in use DO NOT subject the thermometer to any physical shock or vibration DO NOT use pliers or other devices to squeeze the sheath This action can permanently damage the PRT DO NOT subject the thermometer to temperatures above the highest specified operating temperature DO NOT expose the thermometer s handle or cables to extreme tem peratures The temperature limits ...

Страница 18: ...t was calibrated 6 3 Immersion Requirements Stem effect can cause measurement errors for any thermometer not im mersed in the fluid at least 152 mm 6 inches This error is due to heat lost or gained by the sensing element through the thermometer stem In addi tion heat losses occur due to radiation losses from the sensing element to the housing The immersion depth for standards is dependent on sever...

Страница 19: ...res and readout instruments can be a source of thermal EMF The thermal EMF is caused by a difference in temperature between two connections If the two connections are the same temperature there will be little or no thermal EMF effects However if there is a substantial temperature difference between connections the thermal EMF effects will be significant Therefore cover or insulate any exposed brid...

Страница 20: ...del Number 2602 PRT Protective Case for 5626 15 5628 15 5626 20 and 5628 20 PRT 7 2 PRT Termination The 5626 5628 PRT can be terminated in three ways Figure 4 depending on the user s requirements Gold Plated Spade Lug Bare Wire 5 Pin Din Connector 15 7 Accessories Bare Wire customer option Spade Lug standard 5 Pin DIN customer option 1 2 4 5 3 Figure 4 Probe Termination Examples ...

Страница 21: ...When the Rtp is stable recalibrate the PRT If the Rtp does not stabilize contact an Authorized Hart Scientific Service Center see Section 1 3 Oxidation of the platinum sensor may occur after pro longed use between 200 450 C This oxidation will demonstrate itself by an increase in Rtp of less than 0 1 C To reduce the effects of oxidation anneal the PRT at 600 661 C overnight 12 hr Measure the Rtp a...

Страница 22: ...there may be a short in the sensor Contact an Authorized Hart Scientific Service Center see Section 1 3 If the resistance of the PRT is only a few ohms there may be a short in the four lead wires Contact an Autho rized Hart Scientific Service Center see Section 1 3 If the PRT is open the resistance will be Out of Limits or in the kilo ohm or mega ohm range Contact an Au thorized Hart Scientific Se...

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