5626-12-M User Manual for the Fluke 5626-12-M Secondary Standard Platinum Resistance Thermometer PRT with Mini Banana Plugs, 12 x 0.25in, 100Ω

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5626/5628

User's Guide

2-2

Figure 1. The 5626 and 5628 Platinum Resistance Thermometers

calibrated using a primary standard that has been calibrated in a primary

calibration laboratory using known intrinsic values.

2.3 Calibration

In order for any instrument to be used as a standard it must be calibrated. The

PRTs are calibrated in Hart’s Scientific Calibration laboratory and provided with a

NIST traceable “Report of Calibration”.

At the time of purchase, the 5626 and 5628 are calibrated over their entire range

( −196 °C to 660 °C) at specified ITS-90 fixed points. Generally, a secondary

PRT is calibrated by comparison method. All PRTs calibrated by Hart Scientific

are calibrated using standard calibration techniques.

2.4 Recalibration

The recalibration of the 5626/5628 Secondary 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,

calibration over the full range of the PRT ( −196 °C to 661 °C) is recommended.

For information on recalibrating your 5626 or 5628, contact Fluke’s Customer

Service department for an RMA number and current pricing (see Section, Before

You Start).

Depending on the user’s Quality Assurance requirements, the PRT drift should

be checked periodically at the Triple Point of Water (TPW). Section 8,

Troubleshooting, provides information on drift with respect to mechanical shock

and oxidation. If the R

cannot be restored after annealing to within calibration

tolerances, a full recalibration should be scheduled

1.888.610.7664 sales@GlobalTestSupply.com

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FLUKE 5626-12-M Secondary Standard Platinum Resistance Thermometer PRT with Mini Banana Plugs, 12 x 0.25in, 100Ω