Honeywell E3Point - Sensor Span Calibration

E
3
Point Network Gas Monitor User Manual 21
Using the Programming Menus
Set Span menu
!
WARNING: If the calibration gas concentration exceeds alarm setpoints,
alarms will be triggered. Either change alarm levels so the alarms are not
triggered or put the entire system in service mode so no external equipment
(lights, fans, ventilators, buzzers) are not activated.
!
Only use the Set Span function when inspection or calibration maintenance
indicates that it is necessary. Refer to Periodic Inspection and
Maintenance.
This option allows users to calibrate the sensor’s span. In the main Set
Span screen, press enter to begin.
* Menu *
Set Span
• Before starting the calibration, connect the regulator to the gas
cylinder.
• Adjust the flow rate to 0.5 L/min.
• Connect the tubing from the regulator to the sensor calibration
cap See Figure 6. Calibration Setup.
• Allow the gas to flow for at least 3 minutes before starting the
calibration.
!
If the gas is not allowed to ow for at least 3 minutes, it will aect the
calibration accuracy.
The Set Gas screen allows you to specify the span calibration gas
concentration value.
Set Gas
200 ppm
• Use the arrow keys to increase or decrease the value and press
enter to select.
• The next screen requests confirmation.
Set Span
Yes