Riken Keiki 04 Series User Manual

4. Alarm Functions 4-1. Gas alarm types and alarm setpoints
33 / 79
A gas alarm is triggered if the concentration of the detected gas reaches or exceeds the alarm setpoints shown in the
following table. (Japan models: Auto reset/Export models: Self-latching)
Gas alarm types include the first alarm (WARNING), second alarm (ALARM), third alarm (ALARM H), STEL alarm
(STEL), integrated alarm (A-1H) or TWA alarm (TWA)
*
, and OVER alarm (OVER).
Alarm type
First alarm
(WARNING)
Second alarm
(ALARM)
Third alarm
(ALARM H)
STEL alarm
(STEL)
Integrated
alarm
(A-1H)
TWA alarm
(TWA)
OVER alarm
(OVER)
Measured
gas name
Carbon
monoxide
Japan 50 ppm 150 ppm 150 ppm 200 ppm 150 ppm - 2,000 ppm
Export 25 ppm 50 ppm 1,200 ppm 200 ppm - 25 ppm 2,000 ppm
*Japan models: Integrated alarm/Export models: TWA alarm
A gas alarm is triggered if the concentration of the detected gas reaches or exceeds the alarm setpoints shown in the
following table. (Self-latching)
Gas alarm types include the first alarm (WARNING), second alarm (ALARM), third alarm (ALARM H), STEL alarm
(STEL), TWA alarm (TWA), and OVER alarm (OVER).
Alarm type
First alarm
(WARNING)
Second alarm
(ALARM)
Third alarm
(ALARM H)
STEL alarm
(STEL)
TWA alarm
(TWA)
OVER alarm
(OVER)
Measured
gas name
Hydrogen
sulfide
Japan
1.0 ppm 10.0 ppm 10.0 ppm 5.0 ppm 1.0 ppm 200.0 ppm
Export
5.0 ppm 30.0 ppm 100.0 ppm 5.0 ppm 1.0 ppm 200.0 ppm
CO
HS
C-

Riken Keiki 04 Series Specifications

General

Brand	Riken Keiki
Model	04 Series
Category	Measuring Instruments
Language	English