6 How to Operate in Maintenance Mode
6-1. Overview of maintenance mode and each menu
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6
How to Operate in
Maintenance Mode
6-1. Overview of maintenance mode and each menu
Press the
mark of the MAINTENANCE switch on the display for over five seconds to enter the
maintenance mode. To exit the maintenance mode and return to the normal gas measurement state, press
the
mark of the MAINTENANCE switch for over five
seconds again.
When the maintenance mode is entered, the 4-20 mA output
holds the last output value before entering the mode and the
REF CAL lamp blinks.
Also, the menu shown in the right figure appears on the LCD
display when the maintenance mode is entered.
Press the
/
mark of the UP/DOWN switch to change the
menu and press the
mark of the SET switch to confirm it
and proceed to the contents of the selected menu.
See the following table for each menu item and the process. The detailed description for each menu item is
provided in the subsequent pages.
LCD display
Menu detail
Display contrast of the interferometric sensor
Display light volume of the interferometric sensor
Adjust 4-20 mA external output
Adjust sensor sensitivity (span)
Set alarm setpoint
Alarm Test
Set AUTO REF CAL CYCLE
Display ROM number
Display specification number
CAUTION
Do not turn off the power when the mode is changed. Otherwise, a failure may be caused.
Display menu
Initial screen of maintenance mode
Blinking
