3.3.3 Audible and visible indication
Audible and visible indication in every 5 minutes' intervals can be set to the detector
for indicating normal work status. The user can activate or close this function, or only use
visible signal or both indicating type for option (refer to Setting mode). The default setting
for audible and visible indication of the detector at leaving factory is both closed.
3.4 Setting mode
Notice: the detector cannot be used for measuring at setting mode.
At setting mode, the operator can carry out the following settings:
·Audible and visible indicating mode
·Vibration alarm indicating mode
·Mode conversion for alarm or non-alarm
·Setting value for Grade I alarm point
·Setting value for Grade II alarm point
·Setting value for STEL alarm point
·Setting value for TWA alarm point
3.4.1 Enter into setting mode
At normal measuring mode, press menu key
for about 3 seconds, the detector
will be brought into the setting mode with audible indication.
3.4.2 Modify the detector settings
The menu structure at setting mode is shown as Table 1.
At setting mode, the setting time can be selected by pressing "▲" or "▼" and affirmed
by " ". And then the parameter of the selected item can be modified.
The parameter can be increased by pressing "▲" or decreased by "▼". And affirmed
by pressing " ".
Once a modification is finished, the new parameter will be saved in the detector.
TWA Value
STEL Value
