RKI Instruments Eagle Series - Manual (Page 9)

4 • Specifications Diffusion Eagle Instruction Manual
Table 2 lists specifications for the Eagle’s standard sensors. Your Eagle model
may not include all of the sensors listed below. The alarm settings are user-
adjustable (see “Updating the Alarm Point Settings” on page 36.)
Table 2: Standard Sensor Specifications
Combustible
Gas (%LEL 1 )
Combustible
Gas (PPM 2 )
Oxygen
Hydrogen
Sulfide
Carbon
Monoxide
Range 0 to 100% LEL Depends on
target gas 4
0 to 40% O
2
0 to 100 ppm 0 to 500 ppm
Alarm 1 10% LEL 5000 ppm 19.5% O
2
(decreasing)
10.0 ppm 25 ppm
Alarm 2 50% LEL 25,000 ppm 23.5% O
2
(increasing)
30.0 ppm 50 ppm
TWA Alarm N/A N/A N/A 10.0 ppm 25 ppm
STEL Alarm N/A N/A N/A 15.0 ppm 400 ppm
Detection
Principle Catalytic
combustion
Catalytic
combustion
Electro-
chemical
Electro-
chemical
Electro-
chemical
Response Time
(to 90%) 15 seconds 15 seconds 20 seconds 40 seconds 55 seconds
Accuracy
(of full-scale) ± 5% ± 5% ± 5% ± 5% ± 5%
1 LEL (Lower Explosive Limit)
2 PPM (Parts Per Million)
3 Alarms settings are user adjustable. See “Updating the Alarm Point Settings” on page 36.
4 The PPM range represents the same range as 0 to 100% LEL for that gas. For example, 100% LEL for methane = 5% by
volume = 50,000 PPM. Therefore, the PPM range for methane is 0 to 50,000.