Banner MAXI-AMP Series User Manual

Maxi-amp, Ci3rc2, Current trip point module

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SUPPLY VOLTAGE: 105 to 130 or 210 to 250V ac, 50/60 Hz (8VA)

OUTPUT CONFIGURATION:
SPDT electromechanical relay:
Contact rating: 250V ac maximum, 24V dc maximum, 5 amps maximum
(resistive load), 1/10 HP at 240V ac. Install transient suppressor (MOV)
across contacts which switch inductive loads.
Closure time: 10 milliseconds maximum.
Release time: 10 milliseconds maximum.
Maximum switching speed: 20 operations/second.
Mechanical life: 20,000,000 operations
Solid-state dc relay: SPST optically-coupled transistor;
30V dc maximum, 20mA maximum.

EMITTER POWER: +24V dc at 25 mA maximum available at
module pin #3.

INPUTS:
Trip point for output "OFF":

≤

10 milliamps

Trip point for output "ON":

≥

20 milliamps

Trip point range for input overload indication: 30mA

≤

I

≤

80mA.

INDICATOR LEDs:
OUTPUT "ON" and INPUT overload/short.

OPERATING TEMPERATURE: 0 to 50

°

C (32 to 122

°

F).

CONSTRUCTION: rugged NORYL

®

polyphenylene oxide (PPO

®

)

housing, 1.6" x 2.3" x 4". Standard round-pin 11-pole base.
Use RS-11 socket or equivalent.

SPECIFICATIONS

Current Trip
Point Module

•
•

•

•
•

Self-contained current sensing amplifier

Works with intrinsically safe barrier to provide power to
Banner SMI Series intrinsically safe DC sensor(s); converts
input signal from the sensor to a contact closure

Powers a single sensor or both the emitter and receiver of an
opposed mode pair

Powered by 105-130 or 210-250V ac (50/60Hz)

Two output devices: SPDT 5 amp electromechanical relay
and opto-isolated transistor for logic level dc switching

DIMENSION DRAWING

FUNCTIONAL SCHEMATIC

Printed in USA

P/N 36611

The Banner MAXI-AMP model CI3RC2 (p/n 36606) is a self-
contained module which converts the current output signal of an
SMI Series intrinsically safe sensor to a trip point switch.

Banner SMI Series intrinsically safe sensors carry Factory Mutual
Research's rating for use in hazardous areas. Sensors are wired to
model CI3RC2 using the two-wire hookup through an intrinsi-
cally safe barrier. Refer to the hookups, page 2. The SMI Series
sensor sinks

≤

10 milliamps in the "OFF" state and

≥

20 milliamps

in the "ON" state. The CI3RC2 module senses this current change
and switches internal relays that may be easily wired to most loads
and/or additional control circuitry.

Model CI3RC2 is powered by either 105-130 or 210-250V ac. It
supplies dc power to operate a single sensor or both the emitter
and receiver of one SMI Series opposed mode sensor pair. The
sensor's input to the CI3RC2 is protected against short circuits.

MAXI-AMP

™

CI3RC2

for SMI Series intrinsically safe sensors

Built-in circuit diagnostics indicate an input overload by flashing
an LED status light.

The MAXI-AMP 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.

Banner also offers the CI3RC2 Current Trip Point Module as part
of a kit. See page 2 for further information. The CI3RC2 may be
used with the following Banner Intrinsically Safe sensors: SMI30
Series, SMI912 Series.

CI3RC2 module (left) shown with RS-11 socket and DIN
rail; also SMI30 Series emitter/receiver pair and intrinsic
safety barrier.

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