Intrinsic Safety Barriers

Model (Barrier Only)

Barrier Description

Kit Model

Kit Description

CIB-1

Single-channel intrinsically safe barrier

CI2BK-1

Includes CI3RC2 current amplifier, one RS-11 socket, one

DIN-rail mount, one single-channel intrinsically safe barrier

CI2B-1

Dual-channel intrinsically safe barrier (typically used in

opposed-mode applications)

CI2BK-2

Includes CI3RC2 current amplifier, one RS-11 socket, one

DIN-rail mount, one dual-channel intrinsically safe barrier

MAXI-AMP CI3RC2 Current Amplifier Module

Banner MAXI-AMP module model CI3RC2 (part number 36606) is a self-contained module that converts the current output signal of an

SMI30 Series sensor to a trip point switch.

105 to 130V ac

In

I.S.

+

+

–

–

I.S. Barrier

Out

CI3RC2

210 to 250V ac

AC

Supply

Relay Output

5 Amp Contacts

Input:

10mA (OFF State)

20mA (ON State)

Aux.

Blue

Brown

3

2

1

Input

Common

Opto-Coupler

Output: 20mA max.

Earth Ground

(less than 1)

Non-Hazardous Area

Hazardous Area

SMI Series

Emitter

G

Busbar

In

I.S.

+

+

–

–

I.S. Barrier

Out

Bottom View of Cable

Connector on Sensor

(colors shown are for mating

cable model SMICC-3xx)

Blue

Brown

3

2

1

SMI Series

Receiver

Black

Figure 3. Hookup Using Two Single-Channel Barriers

105 to 130V ac

In +

+

+

+

–

–

Dual Barrier

I.S.

In

Out

Out

CI3RC2

210 to 250V ac

AC

Supply

Relay Output

5 Amp Contacts

Bottom View of Cable

Connector on Sensor

(colors shown are for mating

cable model SMICC-3xx)

Input:

10mA (OFF State)

20mA (ON State)

Aux.

Blue

Blue

Brown

Brown

Black

3

2

1

1

3

2

Input

Common

Opto-Coupler

Output: 20mA max.

Earth Ground

(less than 1)

Non-Hazardous Area

Hazardous Area

SMI Series

Emitter

SMI Series

Receiver

G

Busbar

Figure 4. Hookup Using One Dual-Channel Barrier

Both sensors of the opposed mode pair are wired to model CI3RC2 using the two-wire hookup, which requires the use of two single

channel or one dual channel intrinsic safety barrier(s). In this mode, the SMI30 receiver sinks less than or equal to 10 milliamps in the

"OFF" state and greater than or equal to 20 milliamps in the "ON" state. The CI3RC2 senses this current change and switches internal

relays that are easily wired to most loads and/or additional control circuitry.

Model CI3RC2 is powered by either 105 to 130 or 210 to 250 V ac. The CI3RC2 supplies power to operate both the emitter and receiver.

Inputs are protected against short circuits. Built-in circuit diagnostics indicate an overload of either input by pulsing an LED status light.

The CI3RC2 module has two isolated output switches. There is a 5 amp rated SPDT electromechanical relay, and a solid-state transistor

switch which may be used for logic-level interfaces. For more information, refer to the datasheet packed with the CI3RC2.

SMI30 Series Sensor

P/N 35331 Rev. H

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