Bacharach PCA 3 Manual De Propietario
PCA
3 Manual
66
0024-9472 Rev 2
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.
producing the desired calibration temperatures. Alternatively, containers of ice
water and boiling water can be used.
6.5.1. Material Required
•
Thermocouple Simulator (K-type):
Range:
0 to 600 °F
Accuracy: ±0.5 °F
•
(Alternatively) Ice Water, Boiling Water, Thermometer
6.5.2. TS-Zero Procedure
1. Set thermocouple simulator to room temperature and plug its output into
the T-STACK connector located at the bottom of the analyzer.
Alternatively:
Plug the probe’s thermocouple into the T-
STACK connector located at the bottom of the analyzer.
CAUTION: DO NOT attach the probe’s gas hose to the
analyzer’s GAS port or water will be drawn into the
analyzer!
analyzer’s GAS port or water will be drawn into the
analyzer!
2. If not already done, turn ON the analyzer and display the
CALIBRATION LIST screen (refer to Calibration on page 62).
3. Use the
▲▼ buttons to highlight T-Stack, and then press ENT to
display the CALIBRATE TS-ZERO screen.
NOTE: “Measured” is the current temperature reading,
while “Applied” is a known temperature that will be applied
for calibration purposes.
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 setting of
the simulator.
the simulator.
Alternatively:
Submerge probe tip into an ice-water bath
with a thermometer, wait several minutes, and then use the
▲▼ and ◄► buttons to enter an applied value that exactly
equals the thermometer reading.
equals the thermometer reading.
NOTE: The calibration range is from 32 to 41 °F (0 to 5
°C). Calibrating outside this range will cause the message
“Applied Value High” (or Low) to appear at the bottom of
the screen.
°C). Calibrating outside this range will cause the message
“Applied Value High” (or Low) to appear at the bottom of
the screen.
5. Wait until the measured reading stabilizes, and then press ENT to
calibrate the TS-Zero Measured value to that of the applied value; after