Detcon FP-100 - Manual (Page 13)

Model FP-100
FP-100 Instruction Manual Rev. 0.0 Page 9 of 30
8-32 tapped
ground point
4.35"
3
4
NPT Ports 6.1"
5.5"
1
4
" mounting holes
Wa
ll
(or
ot
he
r
moun
ting
su
rf
ace)
Bottom Housing Assembly
Splash Guard
2"
0.5"
DETCON, INC.
LEL
100 %
FP100
ITM Assembly
13.75" Typ.
9.625" Typ.
Use spacers to move
sensor assembly away
from wall at least 0.5".
Spa
cer
Figure 12 Typical FP-100 Sensor Assembly and Mounting Dimensions
2.5 Electrical Installation
The Sensor Assembly should be installed in accordance with local electrical codes. The sensor assemblies are
CSA/NRTL approved (US and Canada) for Class I, Division 1, Groups B, C, & D area classifications, and are
also ATEX Approved for Class I, Zone 1, Group IIB+H
2
area classifications.
Proper electrical installation of the gas sensor is critical for conformance to Electrical Codes and to avoid
damage due to water leakage. Refer to Figure 9 and Figure 13 for proper electrical installation.
NOTE: If a conduit run exits the secondary port, repeat the installation technique shown in
Figure 13.
In Figure 13, the drain allows H
2
O condensation inside the conduit run to safely drain away from the sensor
assembly. The electrical seal fitting is required to meet the National Electrical Code per NEC Article 500-3d
(or Canadian Electrical Code Handbook Part 1 Section 18-154). Requirements for locations of electrical seals
are covered under NEC Article 501-5. Electrical seals also act as a secondary seal to prevent water from
entering the wiring terminal enclosure. However, they are not designed to provide an absolute watertight seal,
especially when used in the vertical orientation.
NOTE: A conduit seal is typically required to be located within 18" of the J-Box and Sensor
Assembly. Crouse Hinds type EYS2, EYD2 or equivalent are suitable for this purpose.
NOTE: The Detcon Warranty does not cover water damage resulting from water leaking into
the enclosure.