ECA 450 Calibration
Instruction 0024-9400
4. Wait until Measured reading on screen stabilizes. Then use the ∧∨ and
< > keys to enter an Applied value of 32 °F (0 °C).
Typical Calibrate TS-Zero Screen During Calibration:
«CALIBRATE TS-ZERO««
Measured 31°F
Applied 032°F
5. Press ENTER to calibrate the analyzer’s Measured value to that of the
Applied value; after which the message “Good Calibration” should appear
followed by the CALIBRATE TS-SPAN screen.
TS-Span Procedure:
6. Adjust simulator to 572 °F (300 °C).
The calibration range is from 175 to 625 °F (79 to 329 °C). Any attempt to
calibrate outside this range will cause the message “Bad Calibration
Entry” to appear.
7. Wait until Measured reading on screen stabilizes. Then use the ∧∨ and
< > keys to enter an Applied value of 572 °F (300 °C).
Typical Calibrate TS-Span Screen During Calibration:
«CALIBRATE TS-SPAN««
Measured 560°F
Applied 572°F
8. Press ENTER to calibrate the analyzer’s Measured value to that of the
Applied value; after which the message “Good Calibration” should appear
followed by the Calibration List screen being redisplayed.
9. Remove calibration equipment.
3.6 Calibrate T-Air (Ambient Temperature) Channel
The following procedure first zeros and then spans the ambient-temperature
channel to known temperature values.
Material Required:
• Thermocouple Simulator (K-type) Range: 0 to 600 °F
Accuracy: ±0.5 °F
TA-Zero Procedure:
1. Adjust simulator to 32 °F (0 °C).
The calibration range is from 32 to 41 °F (0 to 5 °C). Any attempt to
calibrate outside this range will cause the message “Bad Calibration
Entry” to appear.
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