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Limited Warranty & Limitation of Liability

Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. 

The warranty period is one year and begins on the date of shipment. Parts, product repairs, and services are warranted 

for 90 days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and 

does not apply to fuses, disposable batteries, or to any product which, in Fluke’s opinion, has been misused, altered, 

neglected, contaminated, or damaged by accident or abnormal conditions of operation or handling. Fluke warrants 

that software will operate substantially in accordance with its functional specifications for 90 days and that it has been 

properly recorded on non-defective media. Fluke does not warrant that software will be error free or operate without 

interruption.
Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have 

no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available only if product 

is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price. Fluke reserves 

the right to invoice Buyer for importation costs of repair/replacement parts when product purchased in one country is 

submitted for repair in another country.
Fluke’s warranty obligation is limited, at Fluke’s option, to refund of the purchase price, free of charge repair, or 

replacement of a defective product which is returned to a Fluke authorized service center within the warranty period.
To obtain warranty service, contact your nearest Fluke authorized service center to obtain return authorization 

information, then send the product to that service center, with a description of the difficulty, postage and insurance 

prepaid (FOB Destination). Fluke assumes no risk for damage in transit. Following warranty repair, the product will 

be returned to Buyer, transportation prepaid (FOB Destination). If Fluke determines that failure was caused by neglect, 

misuse, contamination, alteration, accident, or abnormal condition of operation or handling, including overvoltage 

failures caused by use outside the product’s specified rating, or normal wear and tear of mechanical components, Fluke 

will provide an estimate of repair costs and obtain authorization before commencing the work. Following repair, the 

product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return 

transportation charges (FOB Shipping Point).
THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER 

WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF 

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY 

SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF 

DATA, ARISING FROM ANY CAUSE OR THEORY.
Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation 

of incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. 

If any provision of this Warranty is held invalid or unenforceable by a court or other decision-maker of competent 

jurisdiction, such holding will not affect the validity or enforceability of any other provision.

Fluke Corporation   

Fluke Europe B.V. 

P.O. Box 9090 

 

P.O. Box 1186 

Everett, WA 98206-9090 

5602 BD Eindhoven 

U.S.A. 

  The 

Netherlands

11/99

Summary of Contents for 5686

Page 1: ...ndard Platinum Resistance Thermometer 2004 Rev 1 4 11 2004 2011 Fluke Corporation All rights reserved Specifications subject to change without notice Users Guide All product names are trademarks of their respective companies ...

Page 2: ...earest Fluke authorized service center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB Destination Fluke assumes no risk for damage in transit Following warranty repair the product will be returned to Buyer transportation prepaid FOB Destination If Fluke determines that failure was caused...

Page 3: ...on 3 Return Procedure 3 Verifying Probe Accuracy 3 How to Contact Fluke 4 Specifications 5 Construction 5 Installation 5 Environmental Issues 5 Mounting 5 Electrical Circuit 5 Care and Handling Guidelines 6 SPRT Care 6 Handling Guidelines 6 Operation 6 General 6 Comparison Calibration of Other Instruments 6 Measuring Current 7 Thermal EMF 7 ...

Page 4: ...5686 Users Guide ii ...

Page 5: ...iii List of Tables Table Title Table 1 International Electrical Symbols 2 Table 2 Specifications 5 Page ...

Page 6: ...5686 Users Guide iv ...

Page 7: ...v List of Figures Figure Title Page Figure 1 5686 Glass Capsule Standard Platinum Resistance Thermometer 1 Figure 2 The construction of 5686 SPRT 5 ...

Page 8: ...5686 Users Guide vi ...

Page 9: ... Long stem SPRTs are not suitable for some applications where the probe should be encased into a vessel completely The 5686 SPRT covers the range from 13 K 260 C to 505 K 232 C The 5686 is carefully annealed at the appropriate temperatures and precisely tested for stability The sensing elements are fabricated using high purity platinum wire wound in a strain free design on a fused silica cross fra...

Page 10: ...in this manual Otherwise the protection provided by the instrument may be impaired The following definitions apply to the terms Warning and Caution Warning identifies conditions and actions that may pose hazards to the user Caution identifies conditions and actions that may damage the instrument being used Warning To avoid personal injury follow these guidelines DO NOT use this instrument to measu...

Page 11: ...acy Class Calibration In order for any instrument to be used as a standard it must be calibrated The SPRT may be purchased calibrated or non calibrated Fluke Calibration has the capability of performing fixed point calibration or comparison calibrations traceable to NIST Recalibration The recalibration of the SPRT should be scheduled according to the user s company Quality Assurance requirements N...

Page 12: ... You may have to use the probe s temperature versus resistance table and interpolate to get the probe s calibrated resistance value at 0 C 5 Considering the probe s uncertainty specification determine whether or not it is within tolerance of the data on its most recent certificate of calibration If it is it may be placed in service If not double check the probe coefficients in the readout If they ...

Page 13: ...er facility specifically designed for this purpose Environmental requirements include Stable temperature and humidity Clean draft free area Low noise level low radio frequency magnetic or electrical interference Low vibration levels Mounting Capsule type SPRTs are usually used totally immersed meaning that they are generally inserted into a well in a copper block The connections are made to long f...

Page 14: ...bly slip 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 sensor Do not submerge the handles Allow sufficient time for the thermometer to stabilize before making measurements This allows for the best accuracy Use the correct drive current with the thermometer to ...

Page 15: ...his can be done graphically by plotting i vs R and extrapolating to zero power or by using the following equation R0 R1 i1 2 R2 R1 i2 2 i1 2 Where R0 Zero current resistance R1 Resistance measured at current i1 R2 Resistance measured at current i2 The exact immersion depth required can be determined by performing a gradient test taking measurements approximately every 1 2 inch 1 27 cm until there ...

Page 16: ...5686 Users Guide 8 ...

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