Bacharach PCA 2 24-9448 - Manual (Page 70)

Instruction 24-9448 5-4
Calibration
5.4 T-Stack Calibration
Ths procedure frst zeros and then spans the stack-temperature channel
to known temperature values.
The use of an electronc thermocouple smulator s the preferred method of
producng the desred calbraton temperatures. Alternatvely, contaners
of ce water and bolng water can be used.
Material Required:
Thermocouple Smulator (K-type)
Range: 0 to 600 °F
Accuracy: ±0.5 °F
(Alternatvely) Ice-Water, Bolng Water, Thermometer
TS-Zero Procedure:
1. Set thermocouple smulator to room temperature and plug ts output
nto the T-STACK connector located at the bottom of the analyzer.
Alternatively: Plug the probe’s thermocouple nto the T-STACK con-
nector 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 dsplay the
CALIBRATION LIST screen per Secton 5.2.
3. Use the buttons to hghlght T-Stack, and
then press
ENT
to dsplay the CALIBRATE
TS-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 smulator to 32 °F (0 °C),
and then use the and buttons to enter
an Appled value that exactly equals the set-
tng of the smulator.
Alternatively: Submerge probe tp nto an ce-water bath wth a ther-
mometer, wat several mnutes, and then use the and buttons to
enter an Appled value that exactly equals the thermometer readng.
The calibration range is from 32 to 41 °F (0 to 5 °C). An attempt to
calibrate outside this range will cause the message “Bad Calibration
Wrong CAL Entry” to appear in the following step.
•
-
-
•
CALIBRATION LIST
Pressure
T-Stack
T-Air
CO-LO
SO
2
NO
NO
2
(more)
MENU
F1 F2 F3