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

• 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.

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.

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

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

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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

Incorrect

Drill Drain

Hole Here

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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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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, 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

(+)

Figure 10. Field Wiring for Three-Conductor Sensor Inputs

GND

SENSOR #1 SENSOR #2

GND

SENSOR #3

GND

SENSOR #4

GND

SENSOR #5

GND

SENSOR #6

GND

SENSOR #7

GND

SENSOR #8

GND

SENSOR #9

GND

SENSOR #10

GND

SENSOR #11

GND

SENSOR #12

GND

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

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.

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