Dover OPW SiteSentinel iSite, Installation Manual, Page: 43 / 146

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5.4 Single-Level Sump Sensor
Part No. 30-0231-L
The Single-Level Sump Sensor ( Figure 5-4 ) is designed to detect the
presence of liquid in sumps, dispenser pans and other locations where
the presence of a liquid could indicate that a leak has occurred.
The sensor contains a normally closed float switch that activates in the
presence of liquid. In the event of a break in the cable, the system will
activate the alarm.
Maximum Wiring Length is the maximum length of cable to be used to
connect all sensors on an individual channel. This length includes run
of cable from VSmart to each sensor board in the string.
5.4.1 Installation
1. Check that the sump is dry.
2. Position the sensor on the bottom of the sump/pan and
secure the sensor wire to an existing pipe or bracket with a
tie wrap.
3. Connect the sensor wires to the field wires in the junction
box using the supplied wire nuts.
4. Seal the electrical connections with the epoxy seal packs.
Figure 5-4 Single-Level Sump Sensor
Single level Sump Sensor Specifications
Detects:
Liquid
Cable Requirements: Belden #88760 or Alpha #55371
Operating Temperature: -40°F to 158°F (-40°C to +70°C)
Dimensions:
Length: 3.75” (9.5 cm), Diameter: 2.9” (7.4 cm)
Maximum Wiring Length*:
1,000’ (305 m) field wiring
Multi-Drop Restriction: 16 per I.S. barrier channel (64 per barrier)
Connections:
Red = Power, Black = Signal, Shield = Ground