11
Warning
・
When the temperature is drastically changed at next detection point, in order to
make accurate measurement, wait until the instrument accustom itself to its
temperature (approx 10 min.). Then, start measurement after air calibration.
Warning
・
When measure O2 in inert gas, confirm that CO2 density of sucked air is under
15%. If over 15% of CO2 is introduced, that may decrease the sensor life.
(See 8. Caution in operation)
Caution
・
Do not let water or oil sucked into instrument. If it should be sucked, the pump
or sensor shall be failed.
・
When measure, check the running sound of pump and the flowmonitors.
It cannot be measured at stop of pump operation.
・
When the measuring gas is except calibration gas, the display reading will show
at slightly high or slightly low side position.
・
Do not block the gas outlet because the display reading may show the slightly
high position.
＊
Note
・
When suck high density gas above LEL, the hang-up phenomenon takes place
from the adsorption of it to the gas sampling tube and filter tube.
①
When use the range of vol%, use it as it is.
②
When make zero adjustment, remove the gas sampling tube and let fresh
air sucked into instrument.
③
When measure by %LEL range, clean the gas sampling tube by air and try
to measure after the display reading goes down zero.
(2)
Battery voltage
By pressing BATT switch while in operation, the battery voltage at present can be confirmed.
The battery voltage will return to the gas concentration reading if there is no input of this
switch “ON” for 20 seconds.
０．０％ＬＥＬ ２０．９％
（
Gas display
）
ＢＡＴＴ
ＢＡＴＴ．
：Ｅ −−−｜−− Ｆ
（
Battery voltage display
）
ＢＡＴＴ
