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Description, Housing – RKI Instruments 35-3000RK-OXY User Manual

Page 5

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35-3000RK-OXY Sample-Draw Oxygen Detector • 5

Description

This section describes the components of the sample-draw oxygen detector. The sample-
draw detector consists of the housing, flow system, and detection system.

Figure 1: Sample-draw Oxygen Detector Component Location

Housing

The sample-draw detector’s fiberglass housing is weather- and corrosion-resistant. It is
suitable for installation where general purpose equipment is in use.

The housing door is hinged on the left side and is secured by two latches on the right side.
The flowmeter and status lights are visible through a window in the housing door.

Four mounting feet are attached to the back of the housing (one at each corner). Use the
mounting feet to install the housing to a vertical surface. Use the two conduit hubs on the
bottom of the housing to make wiring connections.

An aluminum subpanel is mounted to the interior of the housing. The sample-draw
detector’s internal components are mounted to the subpanel.

Pump
terminal strip

Mounting foot

(total of 4)

Flow adjust

potentiometer

Low flow

potentiometer

Pilot light

Fail light

Relay

Detector
terminal strip

EXHAUST fitting

INLET fitting

Interconnect terminal strip

Filter

Combustible gas sensor

Oxygen sensor

Conduit hub

(total of 2)

Bypass valve

Power
terminal strip
(not used)

Flowmeter

(not used in this version)