Adjusting The Zero (If Required) - Honeywell 301EM Mode D'emploi

Adjusting the Zero (If Required)

When the unit displays 0 %/ppm in an area with no presence of the target
gas, proceed to "Calbibrating the Sensor" on the following page.
To adjust the zero, inject zero gas (nitrogen) at the specified flow rate.
The gas must be allowed to flow into the unit for a minimum of 2.5 minutes
before beginning and then throughout the adjustment.
1. Press enter to access the programming menu.
Since the menus are password protected you
must first enter the password in the PASSWORD
screen
2. Use the up or down button to change each letter
until VA is displayed. Press enter after each letter
to confirm and to access the menus.
3. Use the up or down arrow to scroll to the Set Zero
menu screen and press enter to select.
4. Use the up or down arrow to select the sensor to
be calibrated and press enter to select.
5. Press enter again when the screen displays
GoCalib to start the zero adjustment
6. The Wait screen is displayed throughout the
adjustment and the menu returns to the main
menu screen when the adjustment is complete.
7. Use the up or down arrow to scroll to the Quit
menu and press enter to exit the programming
menus.
301EM User Manual
Programming and Calibration
Calibrating the Unit
PASSWORD
AA
Menu
Set Zero
H2S #1
SD #1
H2S #1
GoCalib?
Menu
*Quit*
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