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Instruction 24-9351
5.6 Calibrate TL-Zero
Material Required:
• Thermocouple Simulator (K-type) Range: 0 to 300°C
Accuracy: ±0.3°C
Procedure:
1. With the analyzer turned off, first plug the simulator’s K-type connec-
tor into the T-AIR jack (Figure 3-2); then turn on the analyzer and
wait for its warmup cycle to complete.
2. Enter the Calibration Menu Screen per Section 5.3; then choose
TL-ZERO to zero the analyzer’s room-air/primary-air temperature
channel.
3. Set the simulator to 0 °C (32 °F).*
4. Wait until the MEASURED reading on the screen stabilizes. Then use
the st and keys to enter an APPLIED value that equals 0 °C
(32 °F).
Typical Calibrate TL-Zero Screen During Calibration Procedure:
CALIBRATE TL-ZERO
MEASURED 3.0°C
APPLIED 0000.0°C
4. Press the key to calibrate the analyzer’s MEASURED value to
that of the APPLIED value. At this time the Calibrate Menu Screen is
redisplayed.
* The calibration range for this screen is 0 – 5 °C (32 – 41 °F). Any
attempt to calibrate outside this range will cause the analyzer to
display an error message.
Calibration
5-6