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8. Display at Start-up (Initial Delay)
MEMO
The magnetic stick is not operable during the initial delay.
The initial delay lasts approximately 30 seconds after the power is turned ON.
(1)
When the power supply is turned ON, all of the indicator lamps (green, red, and yellow
lamps) and the display block are lit.
(2)
While the indicator lamps (green, red, and yellow lamps) are lit, the following items will be
lit for approximately 1 second each.
Software version number (of the main unit)
Full scale
Example [
] ppm
When the full-scale value is 2000 ppm.
Alarm set value
Example [
] ppm
When the alarm set value is 500 ppm.
(3)
Then the POWER indicator (green lamp) will be flashed for approximately 25 seconds.
(4)
When the POWER indicator (green lamp) is lit, the start-up of the main unit is completed
and the main unit will be in gas monitor mode.
MEMO
If the sensor unit has not been turned ON for a long time after the product is shipped from
factory, it may take some time for the sensor output to stabilize.
If needed, turn ON the product for approximately one week, and make the zero adjustment
and span adjustment. Refer to
11.3 Calibration Method
for the adjustments.
CAUTION
Check that there is no gas around the product before starting the product.
If the sensor output is not stable, the external contact point may operate after the initial
delay. Release the interlock of the external equipment if necessary.
During the initial delay, the analog signal fixed at 1.6 mA will be output and the external
contact will not operate.
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