Pressure Sensor Installation - TSI Instruments SUREFLOW 8681 Installation Instructions Manual

Pressure Sensor Installation

The pressure sensor (P/N 800326) is typically
installed above the main entrance to the laboratory
(Figure 3).
WARNING: 800326 pressure sensor must be
mounted through the wall between the controlled
space (laboratory) and referenced space (hallway),
exactly as shown in Figure 4.
1) Determine pressure sensor location (Figures 3,
4). Pressure sensor typically mounts in the
reference space, and the dummy housing
mounts in the laboratory.
NOTE: Pressure sensor is not symmetrical. If
sensor is to be centered over hallway
door, measure one inch to the left of
center for 2¼" hole. Dummy sensor will
be 2" off center on other side of wall.
2) The pressure sensor must be orientated on the
wall as shown in Figure 5. Looking at the
mounted sensor, sensor hole is on the left (2¼")
and wire hole is on the right.
3) Drill a 2¼" inch hole through each side of the
wall to accept the sensor tube.

4) Drill a -inch hole on the side of the wall that
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the pressure sensor will be mounted. This hole
is for the six-conductor sensor cable. Refer to
Figure 5 for a hole mounting pattern.
5) Slide sensor cover to right and remove screw
that holds the sensor base to the pressure
sensor (Figure 5). Remove pressure sensor and
store in a safe place.
6) From the side of the wall the sensor will be
mounted, slide the sensor tube through the wall.
Mark the tube where it is flush with wall.
Remove sensor tube and cut tube
shorter than flush marking.
This product is classified by Underwriters Laboratories, Inc.
penetration firestop systems. See UL fire resistance directory.

inch
1
8
Figure 3: Pressure Sensor and DIM
Typical Installation
Figure 4: Cutaway View of Mounted
Pressure Sensor
for use in through-
®
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