RKI Instruments M2A Operator's Manual page 14

Non-XP, Replaceable-Sensor Capillary Type
CO and H
Both types of CO and H
inside the detector housing.
The CO detectors include a charcoal filter disk which is held onto the sensor with a rubber retaining boot. The
charcoal filter disk scrubs out interfering gases to which the CO sensor responds such as H
hydrocarbons.
The 65-2428 and 65-2428-01 explosion-proof H
ensure that the sensor remains plugged into the detector housing body. The only difference between the 65-2428
and the 65-2428-01 is that the sensor used in the 65-2428-01 is resistant to degradation caused by frequent
exposure to low levels of H
The 65-2495RK non-explosion-proof H
housing cap which helps ensure that the sensor remains plugged into the detector housing body.
The table below outlines the M2A part numbers and replacement detector part numbers for the CO and H
detectors.
14
1.800.561.8187
Detector Housing Body
Cap Gasket
Plug-In Oxygen
Sensor
Detector
Housing Cap
Hydrophobic
Membrane
Detector Part Num ber
65-2494RK
S Detectors
2
S detectors (explosion-proof and non-explosion-proof) have replaceable plug-in sensors
2
S or occasional exposure to high levels of H
2
Target Gas, Range
CO, 0 - 300 ppm
CO, 0 - 200 ppm
CO, 0 - 100 ppm
H S, 0 - 100 ppm
2
www.
Non-XP, Partial
Pressure Type
Detector Part
Num ber
65-2510RK
Figure 4: Oxygen Detectors
S detectors both include a rubber boot and a spacer which help
2
S detector includes an adhesive-backed gasket inside the detector
2
Table 5: CO and H S Detectors
2
M2A Part Number
65-2646RK-05
65-2663RK
65-2646RK-05-02
65-2646RK-05-01
65-2645RK-05
65-2645-05-07
65-2662RK
.com
XP, Replaceable-Sensor Capillary Type
Detector Housing Body
Cap Gasket
Oxygen Sensor
Detector Part Number
65-2514RK
S and certain
2
S.
2
Detector Used
65-2438 (CSA)
65-2496RK
65-2438-01
65-2438-01
65-2428 (CSA)
65-2428-01 (CSA)
65-2495RK
M2A Transmitter Operator's Manual
information@itm.com
Detector
Housing Cap
Flam e
Arrestor
Guard
S
2