Rki-instruments M2 Series Manuel d'utilisateur télécharger pdf (Page 12)

7 M2 Transmitter Operator’s Manual

Figure 3: 65-2494RK Oxygen Detector, Non-Explosion Proof, Capillary Type

CO and H

S Detectors

Both types of CO and H

S detectors have replaceable plug-in sensors inside the detector

housing. The CO detector includes 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

S and certain hydrocarbons. The 65-2423RK-05 explosion-

proof H

S detector includes a rubber boot and a spacer which help ensure that the sensor

remains plugged into the detector housing body. The 65-2495RK non-explosion-proof H

detector includes an adhesive backed gasket inside the detector housing cap which helps

ensure that the sensor remains plugged into the detector housing body.

Figure 4: 65-2433RK-05 CO Detector, CSA

Detector Housing Cap

Plug-In Oxygen Sensor

Detector Housing Body

Cap Gasket

Hydrophobic Membrane

Detector Housing

Cap Gasket

CO Sensor

Detector Housing

Cap

Rubber Boot

w/Charcoal Filter Disk

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Rki-instruments M2 Series Manuel d'utilisateur Page 12