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At Gas Measure Mode, Peak value is displayed (Peak values of all 4 sensors) by
pressing Arrow key for 3 seconds, the value of TWA (only for CO and H2S) is
shown by pressing it again, and that of STEL (only for CO and H2S) is indicated
consecutively by pressing it once more. The program returns to Gas Measure Mode
by pressing Power key at the state indicating Peak, TWA and STEL. And it reverts
automatically to Gas Measure Mode as well without using the button for 30
seconds at the state of Peak, TWA and STEL.
The instrument is converted to Gas Measure Mode as below,
when power is turned on. Gas Measure Mode indicates the
concentration of gas and the remained capacity of battery on
LCD, and it displays the gas concentration of Oxygen by %,
Inflammable Gas by %LEL, H2S and CO Gas by ppm units. In the
event that the concentration of the specific gas changes, it indica
-tes the value of concentration in real-time. If it exceeds A1 or A2 Alarm standard
(or STEL / TWA), the measured value and A1 or A2 (icon in case of STEL / TWA) is
displayed at one second interval in turn alerting by alarm sound and vibration.
As of A1, the instrument program will be converted to the original condition and
starts the operation, when the concentration value of the measured gas returns to
the normal state. (LED and LCD Backlight are displayed continuously and the alarm
sound stops, if power key is pressed during the alarm sounds. During the alarm
sound, the measured value and A1 or A2 are displayed in turn on LCD.) In case of
A2, power should be disconnected in order to stop the alarm. When the
concentration value of the measured gas exceeds the maximum measuring range, it
is indicated as the maximum value. And LED, alarm sound and vibration applicable
to A2 Alarm Standard operate together
4. Operation Method
Detection Mode
Indication of Peak Value and TWA & STEL Value
Password Mode
Password input screen appears by pressing Power key for 5 seconds. Number
changes from far left to the right side. It moves upward by each 1 step and blinks
by pressing Arrow key, and the blinking 2nd number moves the position by
pressing Power key. If key.
