Red Lion MINIATURE - Manual

1
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