CTC Union JB120 Series User manual

JB120 Series Switch BoxJB120 Series Switch Box
12 Dual Output Sensor Inputs12 Dual Output Sensor Inputs
Product ManualProduct Manual

2
• 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
T  C

3
I
CTC switch box solutions allow for the monitoring of remotely-mounted vibration
sensors, which would otherwise be restricted to human access due to safety
considerations.
JB120 Series Switch Box Overview:Four to 12 sensor inputs (eight to 24
measurement channel outputs), fiberglass enclosure
The JB120 Dual Output Switch Boxes are common cable termination points for
bringing a variety of sensors including Biaxial, Dual Output Vibration/Temperature
and Two Single Axis sensors into a switch box for routine data collection with
portable data collectors. JB series enclosures are designed to have field-input
cabling installed behind the board. A flip-down panel allows the user to wire
connections on location. The JB series also features an IEPE bias indicator light
built into the box itself, which can be used to indicate errors in the field wiring or
the sensor.
Rated for NEMA 4X (IP66), the JB120 is resistant to hose-directed fluid and
corrosion.Theboxcanalsowithstandharshenvironments,includingtemperatures
ranging from -58°F to 180°F (-50°C to 82°C). A snap latch is installed on the door,
allowing the box to be sealed from the elements when not in use.
If a continuous output application is desired, that can be easily accomplished by
purchasing the optional CTC accessory “T” plug, part number JB931-3A.

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P D
Measurement
Location Card
Data Collector
Access (BNC)
Ch. B
Switch
Quick
Connect
Option
Screw
Terminal
Option
Data Collector
Access (3 pin)
Input Terminal Strip Options
Bias
Indicator
Light
Figure 1. Dimensions
Figure 2. Diagram
Side View Rear View
Data Collector
Access (BNC)
Ch. A

5
M I
Molded mounting brackets are included on the enclosure. Wall anchoring screws
are not included.
Mounting
Holes
0.33 in./8.38 mm
Figure 3. Vibration Switch Box Rear View

6
C E
If you have purchased a switch box without cable entries provided, you should
add your own entry prior to mounting the enclosure. CTC does not recommend
putting holes in the top of enclosures 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 Switch Box
Incorrect
Drill Drain
Hole Here

7
G
Ensure the shield ground wire on JB120 Series Switch Boxes is grounded to
earth ground.
A. Mounting to Earth Ground
When mounting JB120 Series Switch boxes to earth ground (such as an I-Beam),
mount the shield ground wireusing 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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G
B. Mounting to Non-Grounded Structure
When mounting the switch 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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S I
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.
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
(-)
Shield / Drain Wire
(+)
(+)

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Figure 10. Field Wiring for Three-Conductor Sensor Inputs
A B
C
GND
SENSOR #1 SENSOR #2
A B
C
GND
SENSOR #3
A B
C
GND
SENSOR #4
A B
C
GND
SENSOR #5
A B
C
GND
SENSOR #6
A B
C
GND
SENSOR #7
A
B
C
GND
SENSOR #8
A B
C
GND
SENSOR #9
A
B
C
GND
SENSOR #10
A
B
C
GND
SENSOR #11
A
B
C
GND
SENSOR #12
A
B
C
GND
Inputs
Inputs
S I
4. Locate the appropriate plug (identified by channel number), remove it, and install
the wires using a small flathead screwdriver. Depress selected position button
to open terminal for respective wire. Push plug back into location. Refer to the
below chart for the correct orientation, based on application.
Inputs
N
SIONS
SHEET
DUAL OUTPUT - VIBRATION & TEMPERATURE
SOCKET A RED WIRE VIBRATION (+)
SOCKET B BLACK WIRE COMMON
SOCKET C WHITE WIRE TEMPERATURE (+)
SOCKET GND SHIELD DRAIN SHIELD
BIAXIAL VIBRATION - AXIS X & Z
SOCKET A GREEN WIRE AXIS X (+)
SOCKET B BLACK WIRE COMMON
SOCKET C WHITE WIRE AXIS Z (+)
SOCKET GND SHIELD DRAIN SHIELD
TWO SINGLE AXIS VIBRATION
SOCKET A RED WIRE SENSOR 1 (+)
SOCKET B BLACK WIRE COMMON
SOCKET C RED WIRE SENSOR 2 (+)
SOCKET GND SHIELD DRAIN SHIELD
LP400 SERIES DYNAMIC & 4-20 mA VIBRATION
SOCKET A WHITE WIRE VIBRATION (+)
SOCKET B BLACK WIRE COMMON
SOCKET C RED WIRE 4-20 mA (+)
SOCKET GND SHIELD DRAIN SHIELD
NOTE: THIS APPLICATION REQUIRES "T" PLUGS
5. Insert plug into the appropriate PC board connector and double check to ensure
that the cable is going to the correct channel.

11
S I
Note: If your application requires continuous output, the wiring configuration for
the JB120 is slightly modified.
Figure 11. Field Wiring for Continuous Output
6. Mark the Measurement Location Card located on the inside front cover with a
description of each measurement location.
A
B
C
GND
A B
C
GND
A B
C
GND
A
B
C
GND
INPUT #1 INPUT #2 INPUT #3 INPUT #4
OUTPUT #1 OUTPUT #2 OUTPUT #3 OUTPUT #4
OUTPUT #5
INPUT #5
A
B
C
GND
OUTPUT #6
A B
C
GND
INPUT #6
OUTPUT #7
A B
C
GND
INPUT #7
OUTPUT #8
A B
C
GND
INPUT #8
OUTPUT #9
A B
C
GND
INPUT #9
A B
C
GND
OUTPUT #10
INPUT #10
A B
C
GND
OUTPUT #11
INPUT #11
A B
C
GND
OUTPUT #12
INPUT #12
Inputs
Inputs
N
SIONS
SHEET
DUAL OUTPUT - VIBRATION & TEMPERATURE
SOCKET A RED WIRE VIBRATION (+)
SOCKET B BLACK WIRE COMMON
SOCKET C WHITE WIRE TEMPERATURE (+)
SOCKET GND SHIELD DRAIN SHIELD
BIAXIAL VIBRATION - AXIS X & Z
SOCKET A GREEN WIRE AXIS X (+)
SOCKET B BLACK WIRE COMMON
SOCKET C WHITE WIRE AXIS Z (+)
SOCKET GND SHIELD DRAIN SHIELD
TWO SINGLE AXIS VIBRATION
SOCKET A RED WIRE SENSOR 1 (+)
SOCKET B BLACK WIRE COMMON
SOCKET C RED WIRE SENSOR 2 (+)
SOCKET GND SHIELD DRAIN SHIELD
LP400 SERIES DYNAMIC & 4-20 mA VIBRATION
SOCKET A WHITE WIRE VIBRATION (+)
SOCKET B BLACK WIRE COMMON
SOCKET C RED WIRE 4-20 mA (+)
SOCKET GND SHIELD DRAIN SHIELD
NOTE: THIS APPLICATION REQUIRES "T" PLUGS
Inputs

12
PI T
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 switch 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
on the switch 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 switch box.
Figure 12. TM1018 Accelerometer Verication Meter

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PI T
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 at 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
switch box.
c. Wires in switch box or cable connector (+) & (-) are touching.
M
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. Enclosure hinges are free from rust and securely latched.
3. No moisture or condensation is present inside the enclosure.

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W  R
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 can be returned for a 25% restocking fee if returned in new
condition within 90 days of shipment. Stock products qualify for free cancellation
if your order is cancelled within 24 hours of purchase. Built-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-Jb120-12/Rev B