Installation Instructions

MTU Instruction
for MLOG Sensors
Purpose & Scope
This instruction provides wiring information for use in connecting a STAR encoder-type
MTU to a Flow Metrix MLOG Sensor.
Supplies and Tools Required
See Publication 471-2000, General
Installation and Wiring Guidelines for a
complete list of recommended tools and
supplies for MTU Installation.
Installation Procedure
Step 1 – Mount the MLOG Sensor in
accordance with the manufacturer’s
instructions.
Step 2 - Select a mounting location for
the MTU that will allow optimum signal
transmission, and install any needed
wiring. Be sure to follow all General
Installation and Wiring Guidelines as
outlined in Publication 471-2000.
Step 3 – Connect the three wires from
the MTU cable to the three wires of the
MLOG cable as shown in the following
table.
MTU Cable MLOG Sensor
Red R (Red)
Black B (Black)
White G (Green)
Use gel-filled wire splices designed for
outdoor applications to seal the individual
connections. For pit installations, seal
and enclose the three individual
connections using a direct burial splice kit
to complete the waterproof splice.
Note: If the MLOG sensor is connected to
a dual port MTU along with a meter, the
meter should be connected to port 1 and
the MLOG Sensor should be connected
to port 2. For a dual port MTU, port 1 is
the black jacketed cable and the port 2
cable has a grey jacket.
Step 4 – Make a final visual check of the
wiring from the MTU to the MLOG
Sensor. Verify that the cable routing is
neat, secure and professional.
Step 5 – Once installation and wiring are
complete, program the MTU using the
STAR Programmer Software and your
MTU Programmer. During programming,
select “MLOG LEAK DETECTOR” as the
meter type and set the read interval to 6
hours.
Note: The read interval for the MTU
connected to the MLOG Sensor MUST be
set for 6 hours.
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