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Detection Mode
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 %, and such toxic gases as H2S, CO
and SO2 by ppm units.
In the event that the concentration of gas changes, it indicates the
value of concentration in real-time. If it exceeds the 1st Alarm or 2nd Alarm standard (or STEL /
TWA), the measured value and icon or icon (STEL, TWA icon in case of STEL / TWA) blinks
periodically with the alerts by alarm sound and vibration.
When the operator moves to the safe place where the concentration value of the measured
gas is the normal state, the concentration value reduces and the alarm stops. (Even if the
operator escapes to a safe area after the alarm alerts, the icon of alarm remains on the
screen, and it will disappear only after confirming the value by pressing Power key.
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 2nd Alarm Standard operate together.
Indication of Peak Value and TWA & STEL Value
At Gas Measure Mode, in case of Oxygen, the measured maximum and minimum values are
displayed in order. And in case of Toxic Gases, maximum value, TWA value and STEL value
are displayed consecutively.
Program returns to Measure Mode, when Arrow key is pressed at state displaying Peak, TWA
and STEL. If the button is not touched for 10 seconds, the program will return to Gas
Measure Mode.
Operation Method
Example)
In case of Oxygen Measure Instrument
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Содержание sp2nd
Страница 1: ...MODEL SP2nd Portable Single Gas Detector Operating Manual...
Страница 15: ...Operation Flow Chart 14...