Cathodic Protection LineMarker
Test Station
Installation Guide
Applies To the following FreeWave Products
•
•
•
FGR-CP
FGR2-CP
GX-CP
For additional information about the Cathodic Protection (CP) radios and for Modbus register map
information, see the Cathodic Protection User Manual Addendum available at www.freewave.com and on
the User Manual and System Tools CD.
Required Tools and Supplies
Installation of the FreeWave model LineMarker Test Station requires the following tools and supplies:
1.
2.
3.
4.
5.
6.
Phillips screw driver
Standard screw driver
Wire stripping pliers
Spare insulated copper wire
(Optional ) Cordless or corded drill with screwdriver bits
(Optional) Nylon wire ties
3 Inch Conduit Installation
The 3 inch, schedule 40, cathodic protection
conduit should extend 24 to 36 inches above
ground level, to provide sufficient ground
clearance for snow build up or the potential
growth of ground vegetation.
The 3 inch conduit should be buried below
grade 24 to 48 inches to provide sufficient
structural integrity for the LineMarker Test
Station installation. Cementing the 3 inch
conduit in place is not required, but
recommended to improve the lateral rigidity of
the complete installation.
Part Number: LIG0008AB
Revision: A
Last Updated: 11/14/2011
www.freewave.com
866.923.6168  303.381.9200
Cathodic Protection Line Marker Test Station
Installation Guide
Open the LineMarker Test Station Enclosure
Using a Phillips screw driver or cordless drill with Phillips screw bit, turn the 4
fasteners counterclockwise from the base of the LineMarker Test Station. Be careful
not to drop the fasteners, storing them in a secure location for reassembly later.
Carefully, lift the top of the LineMarker Test Station enclosure vertically until the
bottom of the enclosure clears the top of the CP radio green boards. The solar
power panel wires and corresponding termination connector should now be
exposed.
Using one hand to hold the enclosure top in place, use a small standard blade screw
driver to unfasten the two retaining screws in the side of the solar panel power
termination connector, releasing it from its corresponding fixed connector on the CP
radio board. At this point pull the two connector halves apart.
With the two connector halves separated, you can slide the LineMarker Test Station
enclosure top vertically until the enclosure top and solar power panel wires are clear
of the radio and antennae assembly.
Set the enclosure top aside, facing the solar panel up to prevent surrounding
surfaces from damaging the solar panel surface.
Install the LineMarker Test Station
With a 3 inch plastic conduit in place and field wiring already
run, slide the LineMarker Test Station over the top of the
conduit, while running the field wiring up through the wire
access hole in the bottom of the LineMarker Test Station base
plate assembly.
Firmly push down on the base plate assembly until the base
adapter cap securely sits on top of the 3 inch conduit. Field
wiring should be free of any kinks or binding against the 3 inch
conduit or the LineMarker Test Station.
Point the Solar Panel
South
Rotate the LineMarker Test Station on top of the 3 inch conduit until the
solar panel attached to the LineMarker Test Station is facing due south to
maximize exposure of the solar panel to the sun.
FreeWave does not recommend pointing the solar panel east or west, as
this decreases solar exposure, which adversely affects the performance of
the LineMarker Test Station.
Part Number: LIG0008AB Rev A
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Cathodic Protection Line Marker Test Station
Installation Guide
Fasten the LineMarker Test Station
With the LineMarker Test Station firmly positioned on
the 3 inch conduit, use a cordless or corded drill and
appropriate screw driving bits to install the 4 provided
self-tapping fasteners into the 4 predrilled holes in the
bottom of the mounting adapter cap.
Drive the self-tapping screws into place until no
threads are seen and the fastener head is firmly seated
against the adapter cap.
Do not over tighten the self-tapping fasteners, as this
may result in fastener failure.
Route Field Wiring
With the LineMarker Test Station fastened to the 3 inch conduit, route all field
wiring from the bottom of the assembly up vertically towards the top of the
assembly.
FreeWave suggests looping all field wiring with a 6 inch diameter loop and securing
the wiring behind the factory-installed black nylon wire ties, or optionally securing
the field wiring to the factory-installed black nylon wire ties using additional nylon
wire ties (not supplied).
Terminate Field Wiring
Route the field wiring to the appropriate terminals per the
LineMarker Test Station wiring diagram, cut the field wires to length, and remove
3/8 inch of insulation from the ends of all field wires.
Thread the screws to be used sufficiently open to pass the stripped field wire ends
underneath. Avoid fully removing, and possibly dropping, the screws.
While holding each field wire in place with one hand, use a Phillips screw driver to
tighten the terminal screw counter until the fastener is hand tight. Do not over
tighten the fastener. Complete all field wiring terminations.
Power the LineMarker Test Station
Locate the red copper power wire originating on the
LineMarker Test Station dual battery power supply.
Disconnect both slide-pronged termination lugs from both
of the power supply battery positive (+) terminals.
Slide the stripped end of the red, positive (+) copper
power supply wire into the appropriate termination port on
the green connector terminal on the CP board labeled
Battery (+).
Part Number: LIG0008AB Rev A
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Cathodic Protection Line Marker Test Station
Installation Guide
Using one hand to hold the red wire in place, use a small standard blade screwdriver to securely tighten
the terminal screw in place. Do not over tighten.
Gently pull on the now-secured red wire to ensure it is captured in the terminal port.
Reattach both slide pronged termination lugs onto their original power supply battery positive (+)
terminals. The three LED lights on the CP radio should now be lit.
Programming the LineMarker Test Station
Using the FreeWave user documentation for your CP radio, a
computer and programming cable, connect to the CP radio using
the white 9-Pin, RS232 Communication Port or the gray, 20-pin,
Diagnostics Communication Port.
Program the CP radio in accordance with the FreeWave user
manual for the radio, compatibly with the Master radio network
settings and configurations.
In menu 1 (Set Baud Rate), submenu B (ModBus RTU) must be
set to “1” (ON).
When programming is complete, and the CP radio display LED
lights indicate it is linked and connected to the network,
disconnect the programming cable from the LineMarker Test
Station.
Closing the LineMarker Test Station
Slide the LineMarker Test Station enclosure top assembly over the top of the CP
antennae until the bottom of the enclosure top is about even with the top of the CP
radio green boards.
While holding the LineMarker Test Station enclosure top assembly in one hand,
grasp the green, two-pin solar panel power termination connector in the other
hand.
Push the green solar panel power termination connector into the corresponding
fixed connector located at the top of the CP radio board.
With the connector halves now firmly seated, use a small standard blade
screwdriver to thread in, clockwise, both connector screws to ensure the halves are
firmly reattached.
Gently pull on both wires together and then separately to ensure the solar panel
power wiring is secure.
With the solar panel facing due south, continue to slide the LineMarker Test
Station enclosure top vertically down over the rest of the CP radio, dual batteries,
and base mounting flange. The 4 base mounting flange holes should line up with
Part Number: LIG0008AB Rev A
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Cathodic Protection Line Marker Test Station
Installation Guide
the enclosure top. If not, fully remove the enclosure top, confirm the solar panel is facing due south and
reassemble the enclosure top back down onto the base mounting flange.
With the 4 mounting holes now aligned, reinstall the 4 fasteners, tightening with a screwdriver. Do not
over tighten the fasteners as this can damage the enclosure top.
ALTERNATE Antennae Options
To enhance the long range communication capabilities of the
LineMarker Test Station, optional long distance and/or high gain
antennae equipment may be selected and installed in conjunction
with the LineMarker Test Station. Optional antenna, coaxial cable,
and lightning surge protection devices can be purchased through
FreeWave Technologies, Inc or through other quality, reputable
wireless communication suppliers.
To implement enhanced long range antennae equipment during
or after the installation of the LineMarker Test Station, with the
enclosure top removed from the installed LineMarker Test
Station, remove the existing flexible antenna by threading it
counterclockwise from the top of the CP radio.
You may now attach a coax cable to the CP radio RF connector located on top of the radio.
Carefully route the coax cable down the front of the LineMarker Test Station assembly
optionally securing the coax cable to the factory-installed black nylon wire ties, and continue
to route the coax cable down through the wire access routing hole in the bottom of the base
mounting adapter cap.
From a point below the base mounting adapter cap, the coax cable can either be routed out
the side of the 3 inch conduit or routed below grade and back up above grade to the optional
elevated antennae equipment located above the LineMarker Test Station and secured to the
antennae mast every 3 to 4 feet.
Optional lightning surge protection devices can be located and fastened behind the CP radio.
FreeWave strongly recom m ends grounding all lightning surge protection equipment separate from the
CP grounding system to an external ground rod per local building electrical codes and requirements.
Wiring Diagrams
When wiring a CP transceiver to the rectifier at your site, it is important to note on which board the radio is
built. There are wiring differences between a Rev D board and a Rev E board. Wiring the transceiver
incorrectly can cause damage to the transceiver and present a safety hazard.
Typically, if you have an FGR2-CP or a GX-CP, your transceiver is built with a Rev E board. However,
you may have an FGR-CP that you are reusing in a new or different installation. You have a Rev E board
and should follow the Rev E wiring instructions if the following are true:
•
•
You can see the LEDs through the board.
The far right terminal on the board's terminal strip reads "Not Used."
Part Number: LIG0008AB Rev A
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Cathodic Protection Line Marker Test Station
Installation Guide
If neither of the above are true, you have an FGR-CP or a Rev D board and should use the
wiring instructions for the Rev D boards.
Part Number: LIG0008AB Rev A
6
Cathodic Protection Line Marker Test Station
Installation Guide
Rectifier Wiring Diagram – Positive Side Shunt (Rev E)
Part Number: LIG0008AB Rev A
7
Cathodic Protection Line Marker Test Station
Installation Guide
Rectifier Wiring Diagram – Negative Side Shunt (Rev E)
Part Number: LIG0008AB Rev A
8
Cathodic Protection Line Marker Test Station
Installation Guide
Rectifier Wiring Diagram (Rev D)
Part Number: LIG0008AB Rev A
9