RKI Instruments Digester Gas Monitor - Manual (Page 9)

Digester Gas Monitor Operator’s Manual Specifications • 3
Specifications
Table 1 lists specifications for the Digester Gas Monitor.
Table 1: Digester Gas Monitor Specifications
Description Specification
Detection
Range
Methane
(CH
4
)
Oxygen (O
2
) Carbon
Dioxide (CO
2
)
Hydrogen Sulfide (H
2
S)
0 - 100%
volume 0 - 25%
volume 0 - 50%
volume 0 - 1000
ppm 0 - 3000
ppm 0 - 5000
ppm
Alarm Points
Alarm 1:
100% volume
Alarm 2:
100% volume
Alarm 3:
100% volume Alarm 1:
4% volume
(increasing)
Alarm 2:
25% volume
(increasing)
Alarm 3:
25% volume
(increasing) Alarm 1:
50% volume
Alarm 2:
50% volume
Alarm 3:
50% volume Alarm 1:
1000 ppm
Alarm 2:
1000 ppm
Alarm 3:
1000 ppm Alarm 1:
3000 ppm
Alarm 2:
3000 ppm
Alarm 3:
3000 ppm Alarm 1:
5000 ppm
Alarm 2:
5000 ppm
Alarm 3:
5000 ppm
NOTE: There are different versions of the Digester Gas Monitor. Some versions may
not have all four gas sensors installed.
Input Power 100/115/220V ~ ±10%, 50/60Hz, 1.0/1.0/0.5A
or
24 V
± 10%, 2.5A VDC
Maximum
Compressed
Air Sample
Pressure 140 PSI
Minimum
Regulator
Output PSI
Required No Sample Lines Connected: Regulator output set to 25 PSI
Maximum Recommended Sample Lines Connected: Regulator output set to
45 PSI
Recommended
Sample Flow
Rate 3.0 SCFH
Compressed
Air Usage 63 liters maximum per detection cycle
Construction
(housing) Fiberglass/polyester with lexan window (NEMA 4X)
Dimensions 24.0 in. H x 24.0 in. W x 10.0 in. D
(61.0 cm H x 61.0 cm W x 25.4 cm D)
Weight 45 lbs. (including horn/strobe)