probe still tests bad, then you may need to replace it with a CT-6-10 probe. Splice the CT-6-10 to the
cable using the 3-M splice kit (see "Splicing Probe Cable" below).
To test the CT-2B control unit, do the following:
1. Disconnect the probe wires from the terminal strip;
2. Set the probe sensitivity “B” setting to half way (vertical); and then
3. Push the TRIP TEST button
No response indicates possible transformer or power source (across terminals 1 and 2) failure or
component failure on the circuit board. If the board does respond, wait at least 10 seconds. Then
take a wire and short terminals 10 and 12. If the board does not trip, lightning damage to the probe
input to the amplifier is indicated.
If either the probe or control unit fails the test, contact the dealer/installer who installed your
system. If you are a dealer/installer, call
our
technical staff using the 800 number. Further
instructions will be given or authorization to return the ostensibly defective product for testing and
repair. If the probe is bad there is no way of repairing it. It is recommended that all repairs be
returned directly to Cartell and not be sent through a distributor.
S
PLICING
S
ENSOR
P
ROBE
C
ABLE
The cable supplied with your system is coated with polyurethane because it will bond with epoxy
and make a sealed splice. If you purchase your own cable, make sure it is polyurethane coated or it
will not splice. Improper cable splices will cause false alarms and failures. For proper splicing, follow
the instructions below.
Two items are necessary when splicing, both available from Cartell: First, a two-wire shielded direct
burial cable (unshielded cable and PVC jacketed cable will not give proper splices). Second, an
underground splice kit (made by 3M, part #82-F1; Cartell’s part
number is CA-1). The following instructions assume you have
these products.
1. See Figure A. Strip the outer jacket on one cable back 10
inches and cut the RED and BLACK leads to 3 inches, leaving
the SHIELD drain wire the full 10 inch length. Strip the outer
jacket off the mating cable back 3 inches and strip the jacket of
the RED and BLACK lead of both cables back 1/2 inch. Twist the
BLACK to BLACK and RED to RED and solder the connections.
2. See Figure B. Trim the RED and BLACK joints and tape for
proper insulation. Twist the 3 inch SHIELD drain wire to the 10
inch SHIELD drain wire and solder the connection. DO NOT cut
off the excess SHIELD drain wire.
3. See Figure C. Wrap aluminum foil around the splice area (to
properly shield it). Wrap the 10 inch SHIELD drain wire tightly
around the outside of the foil and solder it to itself in order to hold
it in place. This procedure insures that any signal to the splice
SHIELD will drain to ground and thus prevent false alarms.
4. See Figure D. Place an underground splice kit potting
container around the spliced cable and epoxy, following the kit
instructions carefully.
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