RKI Instruments 35-3000RK-LEL - Manual (Page 5)

35-3000RK-LEL Combustilbe Gas Sample-Draw Detector • 5
Description
This section describes the components of the combustible gas sample-draw detector. The
sample-draw detector consists of the housing, flow system, and detection system.
Figure 1: Combustible Gas Detector Sample-draw 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 to a gas monitoring controller.
An aluminum subpanel is mounted to the interior of the housing. The sample-draw
detector’s internal components are mounted to the subpanel.
Low Flow Potentiometer
Exhaust
Fitting
Inlet
Fitting
Combustible Gas
Detector
Detector
Terminal Strip
Interconnect
Terminal Strip
Oxygen Detector
(Not Used in This
Version)
Pump/Pressure Switch
Terminal Block
3/4" Conduit Hub, 2X
Flow Adjust
Potentiometer
Bypass valve
Hydrophobic
Filter
Flowmeter
Pilot LED
Fail LED
Relay
Mounting
Foot, 4X