AccuMac AM1760-20 Benutzerhandbuch - Seite 4
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AM1760/1762 Secondary SPRT User's Guide
1 Introduction
1.1 Main Application
AM1760/1762 Secondary Standard Platinum Resistance Thermometer
(SPRT) interpolates temperature in the range from -200 °C to 670 °C
on the International Temperature Scale of 1990 (ITS-90). It works
together with a readout device to measure temperature or change of
temperature. It is designed as a secondary standard thermometer to
calibrate other thermometers and to measure temperature precisely in
metrology labs.
1.2 Main Features
High accuracy: ±0.006 ºC at 0.01 °C
Temperature range:
Rtpw Drift < 4 mK after 100 hours at 661 °C
1.3 Calibrations
As a temperature reference standard, each SPRT must be calibrated.
Manufacturer recommends calibration interval to be one year. In
between annual calibrations, user can check the drift rate by
comparing Rtpw against the last calibration results. Refer to
specifications section for normal drift rate.
Rev. 201609V3
-200 °C to 670 °C
:
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