Sensor Duct Mount Kit
detcon inc.
Cal Port
HOUSTON, TEXAS
d
etcon inc.
Duct Mount Kit
FP Series PN 975-000020-890, FP Series PN 975-R00020-890
TP Series PN 975-000020-891, TP Series PN 975-R00020-891
DM Series PN 975-000020-892, DM Series PN 975-R00020-892
IR Series PN 975-000208-91R, IR Series PN 975-R000208-91R
Operator’s Instruction Manual
February 22, 2006, Document #2095, Rev. 1.2.4
1.0 Description
1.1 Principle of Operation
1.2 Installation
1.3 Calibration
1.4 Maintenance
1.5 Warranty
1.0 Description
Sample In Ports
Sample Exit Ports
Sensor
Duct Mount Chamber
Sample Flow Diagram
Duct
Air Flow
Top View
The Detcon Sensor Duct Mount Kit allows a Detcon gas sensor assembly to be mounted so that its sensor is
located inside of an air duct, while its transmitter, located outside the duct, is still accessible for calibration
and other adjustments. This method of installation is much more economical than the typical sample draw
type system that is normally used in such applications. This instruction manual explains the installation, calibration, and maintenance procedures of the duct mount configuration. Reference the instruction manual that
came with your Detcon sensor assembly for further information.
1.1 Principle of Operation
In operation, air flow through the duct enters the duct mount chamber through ports facing the oncoming
flow of air. Once inside the chamber the sample passes by the sensor and then exits through similar ports
that face the opposite direction. If any target gas is present in the chamber, the sensor output signals and/or
alarm functions, will respond accordingly as described in the sensor assembly instruction manual.
Detcon Duct Mount Kit PG.2
1.2 Installation
Rain Shield /Splash Guard
Enclosure
Field connector Board
Sensor enclosure cover
Control circuit
Sensor Housing
1.2.1 ASSEMBLY
NOTE: If the duct mount and sensor are already assembled as one unit, skip to the “Installation” instructions
(section 1.2.3). If the duct mount was purchased as a kit, follow the steps below to assemble the sensor to the
duct mount before installation to the duct.
1 - Disassemble the sensor assembly.
a) If applicable, unscrew and remove the splash guard or rain shield from the sensor housing.
b) Unscrew and remove the sensor enclosure cover and unplug the control circuit.
c) Disconnect the sensor housing wiring from the field connector board.
d) Unscrew and remove the sensor housing from the sensor enclosure.
Detcon Duct Mount Kit PG.3
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