Det-Tronics EA2100CG Eagle 2000 Communication Gateway - Manual (Page 37)

Calibration After Sensor Replacement – Toxic Gas
1. Open the junction box cover and press the sensor
replacement switch for about 1 second.
2. The calibrate LED on the communication module
flashes at a 1 Hz rate, indicating that it is ready for
the zero input. The calibrate bit in the status word is
set.
3. Replace the sensor and wait 5 minutes for the sen-
sor output to stabilize.
4. Activate the reed switch or input 1 on the communi-
cation module. The red LED blinks at a 2 Hz rate
for 3 seconds while the reed switch or input 1 is
closed.
5. The communication module records the uncalibrat-
ed value in position one of the calibration log and
calibrates the zero value. The calibrate LED is on
steady.
6. Apply the calibration gas.
7. The calibrate LED blinks at a 1 Hz rate when the
input increases.
8. Activate the reed switch or input 1 on the communi-
cation module. The red LED blinks at a 2 Hz rate
for 3 seconds while the reed switch or input 1 is
closed.
9. The communication module records the uncalibrat-
ed value in the first register of the calibration log
and calibrates the span value.
10. The calibrate LED is on steady.
11. Remove the calibration gas and close the cover.
12. The communication module waits until the analog
value drops below 4% full scale.
13. The calibration is complete. The calibrate LED
turns off and the calibrate bit in the status word is
reset.
Pressing the sensor replacement switch aborts the cali-
bration and starts over.
CALIBRATION ALGORITHM D
(Type Codes 11, 12, 13, 14)
Normal Calibration
1. Apply clean air (20.9% oxygen). See Figure 32.
2. Activate the reed switch or input 1 for at least 4 sec-
onds. The red LED blinks at a 2 Hz rate for 3 sec-
onds while the reed switch or input 1 is closed.
3. The calibrate LED blinks at a 1 Hz rate, indicating
that calibration has begun. The calibrate bit in the
status word is set.
4. The communication module waits 3 seconds.
5. The communication module records the uncalibrat-
ed value in the calibration log and calibrates the
span value.
6. The calibrate LED goes on steady.
7. The communication module waits 3 seconds.
8. The calibration is complete. The calibrate LED turns
off and the calibrate bit in the status word is reset.
Calibration After Sensor Replacement
1. Open the junction box cover and press the sensor
replacement switch.
2. The calibrate LED on the communication module
blinks at a 1 Hz rate, indicating that it is ready for the
zero input. The calibrate bit in the status word is set.
3. Replace the sensor and set the sensor switch to zero.
4. Activate the reed switch or input 1. The red LED
blinks at a 2 Hz rate for 3 seconds while the reed
switch or input 1 is closed.
5. The communication module records the uncalibrated
value in position one of the calibration log and cali-
brates the zero value. The calibrate LED is on steady.
6. Set the zero switch on the sensor to normal. Apply
clean air (20.9% oxygen) to set the sensor analog
span value.
7. The calibrate LED blinks at a 1 Hz rate when the
input goes high.
8. Activate the reed switch or input 1 on the communi-
cation module. The red LED blinks at a 2 Hz rate for
3 seconds while the reed switch or input 1 is closed.
9. The communication module records the uncalibrat-
ed value in the first register of the calibration log
and calibrates the span value.
10. The calibration is complete. The calibrate LED turns
off and the calibrate bit in the status word is reset.
Pressing the sensor replacement switch aborts the cali-
bration and starts over.
33 95-8424