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Related Manuals for Fluke 5686
Summary of Contents for Fluke 5686
- Page 1 5686 Glass Capsule Standard Platinum Resistance Thermometer Users Guide 2004, Rev. 1, 4/11 © 2004 - 2011 Fluke Corporation. All rights reserved. Specifications subject to change without notice. All product names are trademarks of their respective companies.
- Page 2 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,...
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Page 3: Table Of Contents
Symbols Used .........................1 Safety Information ......................2 Application ........................3 Calibration ........................3 Recalibration ........................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... - Page 4 5686 Users Guide...
- Page 5 List of Tables Page Table Title Table 1. International Electrical Symbols ....................2 Table 2. Specifications ..........................5...
- Page 6 5686 Users Guide...
- Page 7 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...
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Page 9: Introduction
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 frame. The special glass capsule of the 5686 is pressure sealed with 5N pure helium. -
Page 10: Safety Information
5686 Users Guide Table 1. International Electrical Symbols Symbol Description Symbol Description Electric Shock Hot Surface (Burn Hazard) Read the User’s Manual Fuse (Important Information) AC (Alternating Current) Battery AC-DC C-TIC Australian EMC Mark Canadian Standards Association CE Complies with European Union... -
Page 11: Application
• DO NOT submerge the handle or cable in liquids. Application The 5686 thermometer is classified as a primary standard. A primary standard is defined in terms of transfer of the ITS-90 from a standards laboratory to a customer’s laboratory. Primary standards are calibrated in a standards lab using known intrinsic values. -
Page 12: Verifying Probe Accuracy
1. Connect the probe to a calibrated readout and verify that the probe’s coefficients have been correctly entered into the readout. 2. Properly prepare a TPW cell or ice bath. Contact Fluke Calibration for assistance. A TPW cell is preferred. Ice baths should use distilled water and crushed ice in a Dewar flask or thermos bottle. -
Page 13: Specifications
Length (mm) Construction Construction of the 5686 SPRT is shown in Figure 2. The 5686 covers the range from 13 K to 505 K. The 25.5 Ω sensor element is crafted using high purity platinum wire wound in a strain free design on a fused silica cross frame. -
Page 14: Care And Handling Guidelines
Read before removing the SPRT from the case. SPRT Care The 5686 capsule Standard Platinum Resistance Thermometer (SPRT) is an extremely delicate instrument. Great care must be taken in handling the SPRT to maintain calibration accuracy. Vibration or shock may cause the resistance to increase. A slight tap to the SPRT tip can cause a change in R as high as 1 mK. -
Page 15: Comparison Calibration Of Other Instruments
The Fluke testing or calibration certificates provided with the SPRT represent data that has been extrapolated. For example, on Model 5686 measurements are made at 1 mA and 1.41 mA. These measurements are then extrapolated to zero current. This can be done graphically by plotting i²... - Page 16 5686 Users Guide...