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Instruction 24-94485-6
Calibration
5.5 T-Air Calibration
This procedure first zeros and then spans the ambient-temperature chan-
nel to known temperature values.
The use of an electronic thermocouple simulator is the preferred method of
producing the desired calibration temperatures. Alternatively, containers
of ice water and boiling water can be used.
Material Required:
Thermocouple Simulator (K-type)
Range: 0 to 600 °F
Accuracy: ±0.5 °F
(Alternatively) Ice-Water, Boiling Water, Thermometer
TA-Zero Procedure:
1. Set thermocouple simulator to room temperature and plug its output
into the T-AIR connector located at the bottom of the analyzer.
Alternatively: Plug the probe’s thermocouple into the T-AIR connector
located at the bottom of the analyzer. DO NOT attach the probe’s
gas hose to the analyzer’s GAS port; otherwise water will be
drawn into the analyzer!
2. If not already done, turn ON the analyzer
and display the CALIBRATION LIST screen
per Section 5.2.
3. Use the buttons to highlight T-Air, and
then press ENT to display the CALIBRATE
TA-ZERO screen.
“Measured” is the current temperature read-
ing, while “Applied” is a known temperature
that will be applied for calibration purposes.
4. Set thermocouple simulator to 32 °F (0 °C),
and then use the and buttons to enter
an Applied value that exactly equals the set-
ting of the simulator.
Alternatively: Submerge probe tip into an ice-
water bath with a thermometer, wait several
minutes, and then use the and but-
tons to enter an Applied value that exactly
equals the thermometer reading.
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CALIBRATION LIST
Pressure
T-Stack
T-Air
CO-LO
SO2
NO
NO2
(more)
MENU
F1 F2 F3
CALIBRATE TA-ZERO
Measured 33 °F
Applied 032 °F
06/27/06 11:55:30 PM
PRINT
F1 F2 F3