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Red Lion MINIATURE User Manual

General description, Model rrmdc - retroreflective sensor, Model prmdc - proximity sensor

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GENERAL DESCRIPTION

These miniature self-contained and powerful Retroreflective, Proximity

(Diffuse) and Opposed Beam Pair Photo-electric Sensors provide application

flexibility in counting, positioning and object detection. All units are inter-

changeable with conventional 12 mm threaded barrel-type photo-electrics and

inductive proximity sensors. Their small size, in addition to various mounting

options, greatly increases alignment ease and application possibilities.

All units can be powered by supplies ranging from +10 to +30 VDC and are

reverse polarity protected. The complementary NPN open collector (Current

Sinking) outputs are protected from continuous overload and inductive load

transients and are rated to 150 mA, with low saturation voltage and less than 10

µA off-state leakage current. In addition, no false outputs are generated at

power-up. Two versions of the sensor are available, a 6 foot (1.83 M) long 4

conductor PVC jacketed cable or 6 inch long quick disconnect Pico-style con-

nector provides supply input and transistor output.

These miniature sensors offer a digital gain adjustment that uses a single

sealed push button to streamline installation and setup. The user simply holds the

button in to achieve maximum sensitivity, and then can click the button for seven

decremental settings to fine tune for your application. They also feature smart

new status indicators. Green and amber LED’s display operating status from

three directions, indicate “power on” and “light sensed” and flash to signal

“maximum gain,” “gain reduced one increment” and “minimum gain” condi-

tions. You can tell operating status of your sensors at a glance.

MODEL RRMDC - RETROREFLECTIVE SENSOR

The Model RRMDC is a miniature, DC powered, retroreflective photo-elec-

tric sensor with maximum detection range of 6.5 feet [1.98 M] (with 3" dia.

reflector Model RT2). The “visible” LED light beam allows for easy alignment

and is modulated, providing immunity to ambient light. The small beam size

makes it a good choice for detecting relatively small objects.

In operation, the visible LED light beam is directed at a photo transistor,

amplified and demodulated. An object which then breaks this beam will trigger

the output.

MODEL PRMDC - PROXIMITY SENSOR

The Model PRMDC is a miniature, DC powered, Proximity (Diffuse) photo-

electric sensor with a 8" maximum detecting distance. This sensor requires no

special reflectors or reflective tapes and the limited 8" sensing range reduces

detection of background reflections. It is ideally suited for detection of transpar-

ent or translucent objects, parts ejected from presses, and rotating targets such as

pulley spokes. A modulated “infrared” LED light beam provides immunity to

ambient light.

In operation, the modulated light beam is reflected by the object to be detect-

ed. Actual sensing range is determined by the surface area and the amount of

reflectivity of the object. This reflected light is sensed by a photo-transistor,

amplified, demodulated and then energizes the outputs.

MODELS EMMDC & RCMDC - OPPOSED BEAM

EMITTER/ RECEIVER SENSOR PAIR

The Models EMMDC (Emitter) and the RCMDC (Receiver) are miniature,

DC powered, Opposed Beam photo-electric sensor pairs with a 13 foot sensing

range. The Emitter contains a high power modulated “infrared” LED. The

Receiver contains a sensitive photo-transistor, amplifier-demodulator and output

transistor. In operation, this output will be triggered when the Receiver detects

that an object begins to break the Emitter beam. Due to their high gain, they are

ideally suited for detecting opaque objects in dirty and dusty areas or when

condensation or oil film environments are present.

MODELS PRM & RRM – MINIATURE DC POWERED PHOTO-ELECTRIC SENSOR

RETROREFLECTIVE, PROXIMITY (DIFFUSE) & OPPOSED

BEAM PAIRS

+10 to +30 VDC OPERATION WITH REVERSE POLARITY

PROTECTION

COMPLEMENTARY NPN (CURRENT SINKING) OUTPUTS

DURABLE BLACK POLYCARBONATE/ABS ALLOY HOUSING

MEETS NEMA 6 AND IP65 STANDARDS

LED’s DISPLAY OPERATING STATUS

PUSH BUTTON DIGITAL GAIN ADJUSTMENT

PRMDC

PROXIMITY

OBJECT

SENSING RANGE UP TO 8" (20.3 mm)

RRMDC

RETRO-

REFLECTIVE

SENSING RANGE UP TO 6.5' (1.98 M)

OBJECT

RETRO TARGET

EMMDC

EMITTER

SENSING RANGE UP TO 13' (3.96 M)

OBJECT

RCMDC

RECEIVER

Bulletin No. PRM/RRM-B
Drawing No. LP0522
Released 06/13

Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net