RKI Instruments GX-8000(PT0-098) - Manual (Page 36)

5 Operations and Functions 5-1. Gas alarm activation
GX-8000 - 36 -
5
Operations and Functions
5-1. Gas alarm activation
Gas alarm:
Triggered when the concentration of detected gas reaches or exceeds the alarm setpoint
value. <<Self-latching>>
Alarm display: Notified by blinking of a gas concentration value display, sounding of the buzzer, and lighting
of the lamp.
Alarm types: First alarm (WARNING), second alarm (ALARM), OVER alarm, TWA alarm, and STEL alarm
<List of Gas Alarms>
Alarm type First alarm Second alarm OVER alarm TWA alarm STEL alarm
Oxygen 18.0%
(Japanese
specification)
19.5%
(Overseas
specification)
25.0%
(Japanese
specification)
23.5%
(Overseas
specification)
40.0% ⎯ ⎯
Combustible
gas
10%LEL 50%LEL 100%LEL ⎯ ⎯
Hydrogen
sulfide
5.0 ppm 30.0 ppm 100.0 ppm 10.0 ppm 15.0 ppm
Carbon
monoxide
25 ppm 50 ppm 500 ppm 25 ppm 200 ppm
Buzzer Repeatedly
sounds strong
and weak beeps
at about one
second
intervals:
Beep, beep
Repeatedly
sounds strong
and weak
beeps at about
0.5 second
intervals:
Blip, blip
Repeatedly
sounds strong
and weak beeps
at about 0.5
second intervals:
Blip, blip
Repeatedly
sounds strong
and weak beeps
at about one
second
intervals:
Beep, beep
Repeatedly
sounds strong
and weak beeps
at about one
second
intervals:
Beep, beep
Alarm lamp Repeatedly
blinks at about
one second
intervals.
Repeatedly
blinks at about
0.5 second
intervals.
Repeatedly blinks
at about 0.5
second intervals.
Repeatedly
blinks at about
one second
intervals.
Repeatedly
blinks at about
one second
intervals.
LCD display Gas
concentration
and
WARNING
display blink.
Gas
concentration
and
ALARM display
blink.
Gas
concentration and
OVER display
blink.
Gas
concentration
and
TWA display
blink.
Gas
concentration
and
STEL display
blink.