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INSTALLATION
Step Four
ELECTRICAL
Step Five
Supply Voltage:
The supply voltage to the LP10 series sensor
should never exceed a maximum of 36 VDC. Flowline controllers have
a built-in 13.5 VDC power supply which provides power to all of
Flowline’s electrically powered sensors. Alternative controllers and
power supplies, with a minimum output of 12 VDC up to a maximum
output of 36 VDC, may also be used with the LP10 series sensor.
Required Cable Length:
Determine the length of cable required
between the LP10 series sensor and its point of termination. Allow
enough slack to ensure the easy installation, removal and/or mainte-
nance of the sensor. The cable length may be extended up to a maximum
of 1000 feet, using a well-insulated, 20 gauge shielded wire.
Wire Stripping:
Using a 10 gauge wire stripper, carefully remove
the outer layer of insulation from the last 1-1/4" of the sensor's cable.
Unwrap and discard the exposed foil shield from around the signal wires,
leaving the drain wire attached if desired. With a 20 gauge wire stripper,
remove the last 1/4" of the colored insulation from the signal wires.
Signal Outputs
(Current sensing):
The standard method used by
Flowline controllers; this technology uses only two wires (Red and
Black). The sensor draws 5 mA when it is dry, and 19 mA when wet. NC/
NO status must be set by the controller. The White wire is not used.
Signal Outputs
(FET switching):
Allows the sensor to switch a
small load on or off directly, using all three wires. Model LP10-___2 is
a NPN type switch, which toggles the negative side of the load; model
LP10-___3 is a PNP type switch for applications where the switch must
be on the positive side of the load. In both FET models, the NO/NC status
is set by the polarity of the voltage feeding the Red and Black wires, and
the White wire connects to the load.
LP10-___3 Shown
Through Wall Installation:
Flowline’s LP10 series sensors may be installed through the top, side
or bottom of a tank wall. The sensor has male 3/4" NPT threads on
either side of a 15/16" wrench flat. This enables the user to select the
sensor’s mounting orientation, installed outside of the tank in, or inside
of the tank out.
Smart Trak™ Installation:
Flowline’s Smart Trak LM10 series mounting system is an in-tank
fitting which enables users to install up to four FLOWLINE sensors of
any technology, to any depth, along the entire length of track. Smart
Trak may be installed through the top wall of any tank using a standard
2" NPT tank adapter. If no tank top installation is available, Flowline's
side mount bracket, LM50-1001, enables Smart Trak to be installed
directly to the side wall of a tank.
Switch Pak™ Installation:
Flowline’s Switch Pak LM45 series mounting system is an in-tank
fitting which enables users to install one FLOWLINE sensor, of any
technology, to a specific depth. The Flowline sensor may be installed
onto the 3/4" NPT adapter at the end of the Switch Pak. Switch Pak may
be installed through the top wall of any tank using a standard 2" NPT
tank adapter. Flowline's side mount bracket, model LM50-1001, may
also be used if top wall installation is not available.
High Level Sensor
Model LP10
Switch Pak
LC06
Junction
Box
Low Level Sensor
Model LP10
1/2
Coupling
Smart Trak
Signal Output
(Relay switching):
Allows the sensor to switch a
small load on or off directly, using an internal 1A relay (60 VAC/60
VDC). Only model LP10-___5 uses the relay and features 4 wires (red,
black, white and green) and a shield wire. The NO/NC status is set by the
polarity of the voltage feeding the red and black wires. The green wire
is the common for the relay and the white wire is the NO or NC,
depending on the polarity of red and black.
Red
Black
Shield
Ground
24 VDC
Power Supply
+
-
Multimeter
(mA)
-
+
Red
Black
Shield
Ground
24 VDC
Power Supply
+
-
Multimeter
(Volts)
-
+
White
Red
Black
Shield
Ground
24 VDC
Power Supply
+
-
Multimeter
(Continuity)
-
+
White
Green