CTC Union CT142 Series User manual
CT142 Series Termination BoxCT142 Series Termination Box
1-2 Channel1-2 Channel
Product ManualProduct Manual
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• Introduction...................................................................3
• Product Description...........................................................3
• Product Dimensions...........................................................4
• Mounting Instructions .........................................................5
• Conduit Entry .................................................................6
• Grounding ....................................................................7
• Sensor Installation ............................................................9
• Post Installation Testing ..................................................... 12
• Maintenance ................................................................ 13
• Warranty & Refund .......................................................... 14
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CTC termination box solutions allow for the monitoring of remotely mounted
vibration sensors, which would otherwise be restricted to human access due to
safety considerations.
CT142 Series Termination Box Overview: 2 channel boxes, polycarbonate
enclosure
The CT142 Termination Boxes are a common cable termination point for
bringing compatible cables for dual output temperature and vibration sensors
into a termination box for routine data collection with portable data collectors.
CT series enclosures are designed to have field input cabling installed on the
bottom of the cover.
Rated for NEMA 4X (IP66), the CT142 is resistant to hose directed fluid
and corrosion. The box can also withstand harsh environments, including
temperatures ranging from -58 to 180 °F (-50 to 82 °C). A cover featuring four
self-tapping screws allows the box to be sealed from the elements.
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Data Collector
Access (BNC)
Figure 1. Dimensions
Figure 2. Diagram
Front View Side View
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Molded mounting brackets are included on the enclosure. Wall anchoring screws
are not included.
CTC
Cable Termination
Box
(Rear View)
Mounting
Brackets
0.22 in./5.59 mm
Figure 3. Mounting Bracket Placement
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If you have purchased a enclosure without cable entries provided, you should add
your own entry prior to mounting the termination box. CTC does not recommend
putting holes in the top of termination boxes as it will cause restricted access to
the wire termination connection points and also allow possible moisture ingress.
Note: To prevent a buildup of condensation inside the enclosure, provide drainage
by drilling a hole in the lowest point of the conduit.
Correct
Figure 4. Conduit Entry for Termination Box
Incorrect
Drill Drain
Hole Here
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No ground lug is supplied on the CT142 Series. If the customer desires external
grounding, separateinstallationis required toinsure thebox isproperly connected
to earth ground.
A. Mounting to Earth Ground
When mounting CT142 Series termination boxes to earth ground (such as an
I-Beam), mount the shield ground wire using a mounting bolt through one of the
mounting brackets on the enclosure. See Figure 5 below.
Figure 5. Proper Shield Grounding Technique
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B. Mounting to non-grounded structure
When mounting the termination box to a non-grounded structure, ensure the
shield ground wire or customer supplied ground wire is tied to a source of earth
ground.
Figure 6. Ground Wire Placement
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Installation of sensors/signal input cable
1. Feed blunt cut end through the cable entry at the bottom of the enclosure.
Note: it is recommended that cables are marked on both ends.
For cord grip cable entry, take off the cord grip cover with bushing and run cable
through it then into the enclosure, hand tighten cord grip cover to base to prevent
damage of cord grip.
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1. Strip outer jacket of cable back 1¼ in. and remove all of the shielding.
2. Separate the internal wires from the shield.
3. Strip red, black, and white insulation back ¼ in.
Figure 8. Bottom View with
Cord Grips Installed
Figure 7. Front View
Figure 9. Stripped Wire
4. While viewing the rear of the panel, locate the appropriate channel. Using a mini
flathead screwriver, loosen the three screws for the channel and insert the wires
into the termination block. Orientation is as follows:
a. Red insulated conductor wire is connected to (+) Vibration.
b. Black insulated conductor wire is connected to (-).
c. Shield drain wire is connected to ground (GND).
d. White insulated conductor wire is connected to (+) Temperature.
e. Tighten the screw on each wire to hold it in place.
(-)
Shield / Drain wire
(+) Temperature
(+) Vibration
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Figure 10. Field Wiring for 3-Conductor Dual Output Sensors
E
NSIONS
E
SHEET
Sensor Inputs
Red = Positive Vibration
Black = Common
Grey = Shield (Ground)
White = Positive Temperature
SENSOR #1 SENSOR #2
Inputs
E
NSIONS
E
SHEET
Sensor Inputs
Red = Positive Vibration
Black = Common
Grey = Shield (Ground)
White = Positive Temperature
SENSOR #1 SENSOR #2
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The TM1018 Accelerometer Verification Meter can be used to verify cable
conductivity, sensor location and proper wiring connections. The Verification
Meter will indicate if the sensor, cable and/or junction box is in working condition.
It will also confirm bias voltage of the accelerometer, which will inform you of the
operation of the internal accelerometer amplifier.
Testing Method:
1. Utilizing two personnel, Person A will be located at the termination box, while
Person B will be located at the measurement location.
2. Once positioned, Person A will connect the TM1018 to the data collector
output to the termination box and turn the Channel Selector to the channel
that corresponds to the referenced measurement. Person A should observe a
“NORMAL” LED reading.
3. Person B disconnects the cable from the accelerometer, and the TM1018 should
respond with an “OPEN” LED. Reconnect the cable to the accelerometer, and
the TM1018 should respond with a “NORMAL” LED.
4. Repeat for each measurement location to verify that accelerometer location is
properly identified at the termination box.
Figure 12. TM1018 Accelerometer Verication Meter
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The following LED Readout indicates the circuit integrity:
1. Green LED: Normal. Indicates proper connection and an output bias will be given,
indicating the health of the sensor (4 – 16 V indicates a healthy accelerometer).
2. Yellow LED: Open Circuit. Indicates one of the following:
a. Cable connector is not connected to accelerometer.
b. Cable is open circuit (broken or not connected @ one end).
c. Accelerometer is not functioning correctly.
3. Red LED: Short Circuit. Indicates one of the following:
a. Water or contamination in the connector.
b. Reverse Wiring ((+) and (-) leads are reversed) at terminal block inputs of the
termination box.
c. Wires in termination box or cable connector (+) & (-) are touching.
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Once the system has been installed, it requires minimal maintenance. Basic
checks to ensure system integrity should be made periodically.
Visual inspection should include examinations for the following:
1. No Visible electrical burns or smoke inside the enclosure
2. No moisture or condensation is present inside the enclosure
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Warranty
All CTC products are backed by our unconditional lifetime warranty. If any CTC
product should ever fail, we will repair or replace it at no charge.
Refund
All stock products qualify for a full refund if returned in new condition within 90
days of shipment. Build to order products qualify for a 50% refund if returned in
new condition within 90 days of shipment. Custom products are quoted and built
specifically to the requirements of the customer, which may include completely
custom product designs or private labeled versions of standard products for
OEM customers. Custom products ordered are non-cancellable, non-returnable
and non-refundable.
Mm-CT142-4/Rev A
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