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10. Customizing the Settings
When power has been connected, all LEDs will flash and buzzer will beep 4 times, at
this time, the LCD will show all icons for about 4 seconds.
After that, the SEU and RDU will begin to monitor the CO2 concentration.
In order to the get timely alarm safety information and meet the personal requirements, it is
advisable to set up the customizing parameter.
Select Temperature Unit ºC/ºF:
Press “Up” to switch between ºC and ºF
Select Barometric hPa/inHg
: Press “Down” to switch between hPa and inHg
10.1) Using the DIAG function:
Will test the communication link from SEU & RDU.
1. Press Mode until the “DIAG” icon flashes
2. Press Enter, the SEU’s five LEDs will blink and the buzzer will sound
3. The RDU’s five LEDs will blink and buzzer will sound simultaneously
10.2) Checking the AL1 - CO2 TWA parameter:
Not user configurable
1. Press Mode until the “AL1” & “CO2” icon flash
2.Press Enter, the “AL1” icon shows on LCD. The CO2 TWA is fixed at 5000ppm
3. Press Enter again or press Mode to quit the setting
