Pyromation Dual J-T-E-K - Manual (Page 24)

22
CALIBRATION
The calibration function allows both single point and
dual point calibration of the thermometer. Single
point calibrates the offset only. Dual point calibrates
the offset first then calibrates the slope. The ther-
mometer can be calibrated at any temperature.
When two probes are used, a match calibration
matches the T1 and T2 offsets.
It is not necessary to perform a field calibration to
obtain specified accuracies. Use the calibration
feature to improve thermometer/probe accuracy or
to compensate for thermocouple probe calibration
drift.
The thermometer has a memory retention capabil-
ity to hold calibration values even while power is
off or the battery is removed.
When you restart, there is no need to recalibrate.
Each of the four thermocouple types may be indi-
vidually calibrated and stored.
NOTE
The temperature at which water boils (100°C/
212°F) is at sea level and standard atmospheric
pressure using distilled water. Changes in altitude
and barometric pressure will cause the boiling tem-
perature to change.
As a general rule, the boiling temperature of water
will decrease 1°C (1.8°F) for every 1000 feet above
sea level. For example, at an elevation of 5300 feet
(1600 meters), water will boil at approximately
94.7°C (202.5°F).
Other liquids may also be used as calibration stan-
dards. Consult a chemical handbook for their freez-
ing (melting) point and boiling point properties.