CTC Union JB330 Series User manual

JB330 Series Switch BoxJB330 Series Switch Box
12 Triaxial Inputs12 Triaxial Inputs
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
T  C

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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.
JB330 Series Switch Box Overview: Four to 12 triaxial sensor inputs (12 to 36
measurement channel outputs), stainless steel slope top enclosure
The JB330 Switch Box is a common cable termination point for bringing
compatible cables for triaxial 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 JB330 is resistant to hose-directed fluid
and corrosion. The box can also withstand harsh environments, including
temperatures ranging from -58°F to 180°F (-50°C to 82°C). A key 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 JB933-1A.

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Measurement
Location Card
Data Collector
Access (BNC)
Switch
Quick
Connect
Option
Screw
Terminal
Option
Data Collector
Access (4 pin)
Input Terminal Strip Options
Bias
Indicator
Light
Figure 1. Dimensions
Figure 2. Diagram
Front View Side View

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Note: If you have purchased a switch box without cable entries provided, you
should add your own entry prior to mounting the modular switch box. CTC does
not recommend drilling holes in the top of the enclosure due to access and
moisture concerns.
Mounting
Holes
0.31 in./7.95 mm
Figure 3. Sloped Top Vibration Switch Box Rear View

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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
Drill Drain
Hole Here

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Ensure the shield ground wire on the JB330 Series Switch Box is grounded to
earth ground.
A. Mounting to Earth Ground
When mounting JB330 Series Switch Boxes to earth ground (such as an I-Beam),
no additional steps are necessary, as the enclosure is grounded internally.
Figure 5. Switch Box (JB330) Earth Ground

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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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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, green, white, and black insulation back ¼ in.
Figure 8. Bottom View with
Cord Grips Installed
Figure 7. Front View
Figure 9. Stripped Wire
(-)
Shield / Drain Wire
(+) Channel Y
(+) Channel X
(+) Channel Z

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Figure 10. Field Wiring for Four-Conductor Triaxial Sensor Inputs
X Y
Z
-
GND
SENSOR #1 SENSOR #2
X Y
Z
-
GND
SENSOR #3
X Y
Z
-
GND
SENSOR #4
X Y
Z
-
GND
SENSOR #5
X Y
Z
-
GND
X Y
Z
-
GND
SENSOR #6
X Y
Z
-
GND
SENSOR #7
X Y
Z
-
GND
SENSOR #8
X Y
Z
-
GND
SENSOR #9 SENSOR #10
X Y
Z
-
GND
SENSOR #11
X Y
Z
-
GND
SENSOR #12
X Y
Z
-
GND
Sensor Inputs
Green = Positive X Axis
Red = Positive Y Axis
White = Positive Z Axis
Black = Common
Grey = Shield (Ground)
Inputs
Inputs
S I
4. Locate the appropriate plug (identified by channel number), remove it, and
install the wires using a small flathead screwdriver. Push plug back into location.
Orientation is as follows:
a. Green insulated conductor wire is connected to Channel X.
b. Red insulated conductor wire is connected to Channel Y.
c. White insulated conductor wire is connected to Channel Z.
d. Black insulated conductor wire is connected to (-).
e. Shield drain wire is connected to ground (GND).
X Y
Z
-
GND
SENSOR #1 SENSOR #2
X Y
Z
-
GND
SENSOR #3
X Y
Z
-
GND
SENSOR #4
X Y
Z
-
GND
SENSOR #5
X Y
Z
-
GND
X Y
Z
-
GND
SENSOR #6
X Y
Z
-
GND
SENSOR #7
X Y
Z
-
GND
SENSOR #8
X Y
Z
-
GND
SENSOR #9 SENSOR #10
X Y
Z
-
GND
SENSOR #11
X Y
Z
-
GND
SENSOR #12
X Y
Z
-
GND
Sensor Inputs
Green = Positive X Axis
Red = Positive Y Axis
White = Positive Z Axis
Black = Common
Grey = Shield (Ground)
Inputs