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Process of Over-range incorrect operation
Users should avoid using gases which exceed the measure range to impact the sensor, because it will affect
the lifespan and sensitivity of the sensor, even, "poison" the sensor. If there is any over-range incorrect
operation makes the detector displaying an concentration at a large reading, the remedy is to take the device
out of the environment immediately and put it in clean air for over half an hour, and then observe the reading, if
it keeps going down, then wait until the reading back to zero before powering it off, and do the zero point
calibration next time before using it. If the reading maintained at full scale, user should send the device back to
manufacturer or agent for repair or replacing the sensor.
①
— ON/OFF
②
—PLUS
③
— MENU
④
— ESC
⑤
— MINUS
⑥
— LCD
⑦
—Air Chamber of Sensor
⑧
— Shockproof Cover
⑨
— Alarm Area
Operation Interface
When the detector is turned on completely, the device will enter the detecting interface. The detected gases
will be showed on the screen (for example: O2, CO, H2S, EX). Time and battery power will be showed at the
top right. When the alarm is on, there will be alarm symbol at the right bottom.
Alarm Status
When the detected gas concentration is lower than the low alarm value, the low alarm is auto on, the relative
gas value will be highlighted, and the alarm sound will be on, light will be flickered.
When the detected gas concentration is high than the high alarm value, the high alarm is auto on, the relative
gas value will be highlighted, and the alarm sound will be on, light will be flickered.
When there is low alarm and high alarm at the same time, both relative gas values will be highlighted, and high
alarm will take the priority.
