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7 Line Interface Module (LIM)
The LIM device is a magnetic contactor that supplies line/tank activity
by monitoring input/output status of nozzle signals and Submersible
Turbine Pump (STP) contactors.
Each Line Interface Module (LIM) interface (maximum of four (4) per
system) will monitor up to four (4) pressurized lines (for a total of 16
sensors per system). In the case of manifold submersible pumps, only
one (1) LLD sensor is installed, but the manifold will require one LIM
position for each submersible pump.
Typically, the dispenser
sends a “hook signal” (110 V) to the
submersible pump controller, whereas the LIM functions by
intercepting this hook signal and communicates via Petro-
Net™ with
the SiteSentinel® iSite™ requesting the status of the LLD sensor
installed in the submersible
pump’s leak detection port. The LIM sends
signal to the STP controller to turn the submersible pump ON, unless
an alarm condition is detected then no signal is sent. A HV feedback
signal confirms that the submersible pump is turned ON.
The LIM works in c
onjunction with the SiteSentinel® iSite™ to test the
lines during periods of inactivity to consistency monitor the site for
leaks in the line(s).
Figure 7-1 LIM Functional Overview
Line Leak Interface Module
Monitors:
Nozzle Signal and STP Contactors
Dimensions:
6” W x 8” H x 5.4” D (15 cm x 20.3 cm x 13.5 cm)
Power Requirements:
12 VDC, 0.5A Max.
Temperature Range:
-40°F to 158°F (-40°C to +70°C)
Summary of Contents for OPW SiteSentinel iSite
Page 15: ...Page 15 of 145 www opwglobal com Figure 2 4 Console Connectivity ...
Page 17: ...Page 17 of 145 www opwglobal com Figure 2 6 Wiring Connections ...
Page 22: ...Page 22 of 145 www opwglobal com Figure 2 11 Standard Twisted Pair Petro Net Installation ...
Page 25: ...Page 25 of 145 www opwglobal com Figure 2 14 Petro Net Over Ethernet Option ...
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Page 34: ...Page 34 of 145 www opwglobal com Figure 4 1 924B Probe Installation ...
Page 61: ...Page 61 of 145 www opwglobal com Figure 5 22 In Tank Probe Setup ...
Page 74: ...Page 74 of 145 www opwglobal com Figure 9 3 Dry Well Monitoring Single Wall Tank ...
Page 78: ...Page 78 of 145 www opwglobal com Figure 9 7 Double Wall Tank with Well Monitoring ...
Page 90: ...Page 90 of 145 www opwglobal com Figure 13 7 ACR RIM Jumper Board ...
Page 142: ...Page 142 of 145 www opwglobal com Declaration of Conformity ...
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