MeshGuard LEL IR & CO2 IR User’s Guide
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5.9.7. Change SPAN value
“Set” and “go” flash in alternation, and “SPAN” and a gas cylinder icon are shown.
Press [Y/+] to enter and change the setting, [MODE] to exit and return to Detection Mode, or [N/-] to
advance to the next menu.
The LCD displays the current value. Change the value if necessary. (LEL value is shown here.)
To change the value:
1. Press [Y/+] to increase the number and [N/-] to decrease it.
2. Press [MODE] to advance to the next digit.
3. After moving to the last digit and making changes, press [MODE]. A question mark (?) is
shown in the display, asking if you want to save the change.
• Press [Y/+] for yes. The message “dn” means the change is done.
• Press [N/-] for no. A “no” message means that the change was abandoned.
• Press [MODE] to return to the first digit.
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