RKI Instruments GX-94 - Manual (Page 7)

GX-94 Operator’s Manual Page 6
1 Alarms are user adjustable. See Viewing and Setting Alarms in the setup mode section.
Table 2: Sensor/Channel Specifications
Combustible Gas
(HC)
Oxygen
Hydrogen
Sulfide
Carbon
Monoxide
Detection
Range 0 - 100% LEL 0 - 40.0% 0 - 100.0 ppm 0 - 500 ppm
Display
Increments 1% LEL 0.1% 0.5 ppm 1 ppm
Low Alarm 1 10% LEL 19.5%
(decreasing) 10.0 ppm 25 ppm
High Alarm 1 50% LEL 23.5%
(increasing) ---- ----
TWA Alarm 1 ---- ---- 10.0 ppm 25 ppm
STEL
Alarm
1
---- ---- 15.0 ppm 400 ppm
Detection
Principle Catalytic
Combustion Electrochem-
ical (gal-
vanic type)
Cell Electrochemi-
cal Cell Electrochem-
ical Cell
Ceiling
Alarm --- ---- Off Off
Accuracy 0 - 20% LEL
± 2% LEL
21% - 100% LEL
± 5% LEL
± 0.5% Oxy-
gen 0 - 30 ppm
±1.5 ppm
31 - 100 ppm
±5 ppm
0 - 50 ppm
±5 ppm
51 - 150 ppm
± 15 ppm
151 - 500
ppm
± 25 ppm