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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