SECTION 2 OPERATION OF MINIRAE PLUS
2 - 12
2.6 Alarm Signal
The built-in microcomputer constantly updates and monitors
real time gas concentration and compares it with the
programmed alarm limits (TWA, STEL, and peak limits for
Hygiene Mode, low and high limits for Survey Mode).
Whenever the concentration exceeds any of the preset limits,
the alarm buzzer and red flashing LED will be activated
immediately to warn user of the alarm condition.
Note: a fully charged battery should show 6.3 volt or higher.
Whenever the battery voltage falls bellow 5.5 volt or the UV
lamp or sensor module fails, the unit will also activate the buzzer
and red LED alarm signal. When the low battery alarm occurs,
there will be about 20-30 minutes operating time left from the
battery. When the battery voltage falls bellow 5.3 volt, the
unit will be turned off automatically.
Note:
in Hygiene Mode, the alarm signal of the gas
concentration exceeding preset limits is a " two beeps" and "two
flashes" per second. The lamp or sensor failure alarm signal is a
"single beep" and a "single flash" per second. The battery low
alarm signal is a "single flash" per second. A flashing message
of "Err xxx.x" in the LCD display indicates the lamp or sensor
failure condition. A flashing message of "bAt xxx.x" indicates
the low battery condition. In addition, there will be a "single
beep" per minute to remind users that battery voltage is low.
Note: it is extremely important that when the lamp or
sensor failure alarm occurs, users should stop the
Содержание MiniRAE Plus PGM-76
Страница 2: ...RAE Systems Inc 680 West Maude Ave 1 Tel 408 481 4999 Sunnyvale CA 94086 Fax 408 481 4998...
Страница 14: ......
Страница 18: ...SECTION 1 GENERAL INFORMATION 1 4 This page is intentionally left blank...
Страница 56: ...SECTION 3 OPERATION OF ACCESSORIES 3 16 This page is intentionally left blank...
Страница 104: ...SECTION 5 PROGRAMMING IN SURVEY MODE 5 18 This page is intentionally left blank...