CTC Union JB230 Series User manual

JB230 Series Switch BoxJB230 Series Switch Box
4-12 Channel4-12 Channel
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.
JB230 Series Switch Box Overview: 4-12 channel boxes, stainless steel
enclosure
The JB230 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 JB230 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 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.

4
P D
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

5
M I
Molded mounting brackets are included on the enclosure. Wall anchoring screws
are not included.
CTC
Vibration
Switch Box
(Rear View)
Mounting
Brackets
0.31 in./7.95 mm
Figure 3. Mounting Bracket Placement

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

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G
Ensure the shield ground wire on the JB230 Series Switch Box is grounded to
earth ground.
A. Mounting to Earth Ground
When mounting JB230 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 (JB230) 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

9
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 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 4-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