H
OOKING
TO
A
S
ECURITY
OR
H
OME
A
UTOMATION
P
ANEL
See Figure 1 on page 1.
You will need two things to have a successful installation:
1. The manual for your home automation or security panel
2. A resistor (consult your manual for the correct size)
The CT-2B has a floating, dry relay contact.
Note:
Use the power supply that came with the CT-2B to power it rather than relying on the H.A. or security
panel for power.
Hook the CT-2B to two zone inputs on your panel. If your system’s contacts are normally closed, use
terminals 5 & 6 on the CT-2B. At your system’s panel, place a resistor between the terminals in parallel (see
your H.A. manual for resistor size).
If your H.A. contacts are normally open, use terminals 6 & 7 on the CT-2B and place a resistor between the
terminals in series (see your H.A. manual for resistor size)
F
IELD
T
ROUBLESHOOTING
Preferred does not provide circuit diagrams or service manuals. However, we try very hard to provide fast
repair service and an 800 number by which technical support may be reached.
Before calling Preferred, there are some simple procedures you can follow. The vast majority of all service
problems result from a fault with the control unit and not from the sensor probe.
Disconnect the probe wires from the control unit and perform the resistance tests listed in "CT-6 Sensor
Probe and Wire Check-Out” on page 2. The resistance tests will determine the health of the probe and wire.
If the probe reading indicates a bad probe, do not immediately dig it up. Rather, if there is a splice in the
line, locate it and cut the wire on the probe side of the splice. Then retest it. If the probe still tests bad, go to
the sensor probe itself and cut the wire one foot from the probe and retest it. If the 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 who installed your system. If you are a
dealer, call Preferred's 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 Preferred and not be sent through a distributor.
L
IMITED
F
IVE
Y
EAR
W
ARRANTY
All Cartell products are warranted against defects in material and workmanship for five years. This warranty
does not cover defects caused by, but not limited to: acts of God, improper installation, abuse, fire and water
damage, electrical surges, and damage to cable caused by slicing, pulling, tangling, or improper splicing. For
more information, visit www.cartell.com.
R
ETURNING
M
ERCHANDISE
Before returning products for repair, please consult the dealer who installed your Cartell system. If he is not
available, call Preferred Technologies Group at (800) 223-4743 to receive a Return Merchandise
Authorization (R.M.A.) number. Write the R.M.A. number on the return shipping box and any correspondence
included with the defective product.
3
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