Bacharach PCA3 Spezifikationen PDF herunterladen (Seite 70)

PCA



3 Manual

70 0024-9473 Rev 4

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.

6.5.1. Material Required

•

Thermocouple Simulator (K-type):

Range: 0 to 300 °C

Accuracy: ±0.3 °C

•

(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!

2. If not already done, turn ON the analyzer and display the

CALIBRATION LIST screen (refer to Calibration on page 66).

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.

4. Set thermocouple simulator to 0 °C (32 °F), and then use the ▲▼ and

◄► buttons to enter an applied value that exactly equals the setting of

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.

NOTE: The calibration range is from 0 to 5 °C (32 to

41 °F

). 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

which the message “Good Calibration” should briefly appear followed by

the CALIBRATE TS-SPAN screen.

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