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SPM Flex Gas Detector
The SPM Flex Ethernet connector is removable and can be replaced by the
customer with a suitable conduit connector� The opening dimensions are shown
in the following illustration� When selecting a conduit connector, consider its
ability to seal to the SPM Flex case, the depth of the thread (enough to attach to
case without interfering with internal components), and adequate space for the
intended wiring� The IP rating can be maintained only with the original factory
connectors�
1.068 in.
(27.13 cm)
0.386 in.
(9.81 cm)
Figure 8. Ethernet opening dimensions
24 VDC
-
+
4-20 mA
-
+
Relay 1
COM
NC
NO
Relay 2
COM
NC
NO
Fault
COM
NC
NO
P9
P8
top of
detector
Ethernet connector
4-20 mA
connections
Input power
connections
Relay
connections
Figure 9. SPM Flex connections
Terminal Module
The terminal module is located on the main PCB inside the gas detector� All
power, relay, and 4-20 mA connections to SPM Flex are made via this module�
Wire entry to the terminal module area is via the cable entry/conduit entry located
at the top of the detector�
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