CTC Union JB320 Series User manual

JB320 Series Switch BoxJB320 Series Switch Box

4-12 Channel4-12 Channel

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

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.

JB320 Series Switch Box Overview: 4-12 channel boxes, stainless steel

enclosure

The JB320 Dual Output Switch Box is a common cable termination point for

bringing a variety of sensors including Biaxial, LP400, Dual Output Vib/Temp 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 JB320 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 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

Front View Side View

Data Collector

Access (BNC)

Ch. A

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

C E

If you have purchased a enclosure without cable entries provided, you should

add your own entry prior to mounting the switch box. CTC does not recommend

putting holes in the top of enclosure 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

G

Ensure the shield ground wire on JB320 Series Switch Boxes is grounded to

earth ground.

A. Mounting to Earth Ground

When mounting JB320 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 (JB320) Earth Ground

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

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

(+)

Figure 10. Field Wiring for 3-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

DIMENSIONS

SIDE SHEET

DUAL OUTPUT - VIB/TEMP

SOCKET A RED WIRE VIB (+)

SOCKET B BLACK WIRE COMMON

SOCKET C WHITE WIRE TEMP (+)

SOCKET GND SHIELD DRAIN SHIELD

BIAXIAL - AXIS X AND 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

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 VIB

SOCKET A WHITE WIRE VIB (+)

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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