Torbal ATS120 - Manual (Page 22)

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Instruction Manual – ATS / BTS Moisture Analyzers
The analyzer’s temperature sensor can be recalibrated and adjusted to measure temperature based on readings derived
from an external temperature probe or thermometer. Temperature calibration and adjustment should be performed only if
the sample must be dried under strictly controlled temperature conditions, when temperature accuracy is of an essence in
order to perform accurate drying. The external thermometer or temperature probe should be manufactured to highest
standards and accuracy with a tractable certificate of calibration.
Two temperature readings (T1 and T2) must be taken to record the analyzer’s temperature (Device temp.) and its
equivalent
values measured by external thermometer (Control temp.). T1 and T2 values should be based on the lowest and
highest temperature settings that will be used in the analyzer. T1 and T2 correction parameters must conform to the
following conditions:
T1 and T2 < 160
o
C
T2 - T1 > 25 o C
T2 > T1
Maximum correction allowed: 20
o
C
13.1. Installing the external temperature probe
Insert the external temperature probe (1) through the opening located in the analyzers venting grill. The probe should be
lowered to the same height as the analyzer’s temperature sensor (3). To adjust the height of the probe use an adjustment
sleeve (2) that will keep the probe in position. To calibrate the analyzer’s sensor in relation to temperature of a specific
sample, lower the probe as low-as-possible but without touching the sample.
Chapter 13: Temperature Correction and Adjustment