12
５. OPERATION METHOD
５−１．
Preparation before start up
Before making power on, take care of the following. If do not keep this, there is the danger
of electrical shock and damage of instrument.
５−２．
Start up
①
This detector head does not equip a power switch. Analog outputs of oxygen sensor
are transmitted to the indicator/alarm unit directory through the connected cable
without signal conversion.
As far as the cable has been connected correctly, this system starts operation by
putting on the power switch in indicator/alarm unit.
②
Be sure to perform gas calibration at the time of new installation.
Correct reading may not be obtained before gas calibration.
５−３．
Stopping the operation
This system stops operation by putting off the power in indicator/alarm unit, since this unit has
no power switch.
・
Make grounding.
・
Check that the wiring with outer unit is made correctly.
・
Check that the supply voltage is within the rating.
WARNING
・
At the new installation, adjust the reading in indicator/alarm unit according to
“
6-2.
Calibration
”
. Adjustment is done by indicator/alarm unit since the detector head has
no functions for adjustment. Refer to operating instructions for the connected
indicator/alarm unit.
CAUTION
！
