-19-
4. Install the sensor unit into the main unit if not installed yet. For the installation procedure, refer to 9-2.
―Sensor Unit Installation/Replacement.‖ Ensure the main unit’s power switch is in the OFF position before
the sensor unit/main unit installation. Install the main unit into the base unit by referring to 6-1
. ―Unit
Installation Procedure
.‖ For NF3 detection, install the activated charcoal filter into the unit by referring to
9-
4 ―Activated Charcoal Filter Installation/Replacement.‖
5. Set the m
ain unit’s power switch to the ON position.
6. All the LEDs on the front and the LCD turn on for one second and then the gas detector starts a self-test.
■
When this product is used for the first time or a different gas type/sensor unit setting is installed (e.g.,
target gas or full scale value is different), the TROUBLE LED will flash, SENS. will appear,
and ―Err‖ will
be shown at the bottom-right corner. After this, open the front cover and press the COMM. button for
more than one second to clear the error.
■
When the same type/setting of the sensor unit is installed (e.g., target gas and full scale value are the
same as the previous one), go to Step 7.
7.
―Good‖ is displayed at the bottom-right corner. The unit will begin the 30-second initialization mode
(POWER LED flashes). After this, the normal operation mode (POWER LED is steady lit) will start as the
gas concentration is displayed on the LCD.
Main unit
’s power switch
To ON position
Lift the cover flap open
TROUBLE LED flashes
COMM. button
POWER LED
30 sec flashing -> steady lit
