Banner MA3-4, MA3-4P User Manual
MICRO-AMP® System
MA3-4 and MA3-4P Modulated Ampliers
Banner MICRO-AMP® module models MA3-4 and MA3-4P are modulated ampli-
ers designed for use with the popular family of Banner high-performance remote
sensors. When these modulated remote sensors are used with the MA3-4 or MA3-4P,
their optical response is the same as when they are used with the larger MAXI-AMP
CM Series modules.
These modules are powered by 10 to 30 volts dc. They feature the patented Banner
Alignment Indicator Device (AID™) signal strength LED. Sensor sensitivity is adjustable via a top-mounted GAIN potentiometer. Circuitry is epoxy-encapsulated and
protected by a tough molded VALOX
modules via the optional RS8 socket/wiring base, or the module may be mounted
directly to a printed circuit board.
The sensors which are used with these modules are totally encapsulated for durability
and innite life. Wide beam angles eliminate alignment problems, and high optical gain permits reliable sensing under severe conditions.
MICRO-AMP MA3-4 Specications
SUPPLY VOLTAGE: 10 to 30V dc at less than 20 milliamps (exclusive of load); 10% maximum ripple.
OUTPUT CONFIGURATION: two open-collector NPN (current
sinking) transistor (solid-state) switches; one normally-open (light
operate) and one normally closed (dark operate). 150 milliamps maximum, each output. Saturation voltage less than 0.5V dc at 10 milliamp
load. Off-state leakage current less than 1 microamp.
RESPONSE SPEED: 1 millisecond ON and OFF.
REPEATABILITY: 0.3 millisecond.
SENSOR LEAD LENGTH: 30 feet (9m) maximum.
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housing. Connections may be made to these
ADJUSTMENT: GAIN adjustment (single-turn potentiometer; adjust
with small at-blade screwdriver).
INDICATOR: exclusive Banner Alignment Indicator Device (AID™)
system lights a red LED indicator whenever the sensor "sees" its own
modulated light source, and pulses at a rate proportional to the strength
of the received light signal.
CONSTRUCTION: totally encapsulated plug-in package with
molded VALOX® housing. Gold-ashed connection pins.
OPERATING TEMPERATURE:
-40 to +70 degrees C (-40 to +158 degrees F).
Functional Schematic, MA3-4
Hookup Diagram, MA3-4
Model MA3-4P: PNP (current sourcing) output
Model MA3-4P has the same specications and performance as the MA3-4 amplier, except that the MA3-4P has complementary PNP outputs
in place of the MA3-4's NPN conguration.
OUTPUT: two PNP transistors, complementary outputs; one normally open (light operate) and one normally closed (dark operate). 150 milliamps maximum, each output. Saturation voltage less than 1V dc at 10 milliamps. Off-state leakage current less than 1 microamp.
Hookup Diagram, MA3-4P
Printed in USA
P/N 03341F3G
Sensors for use with the MA3-4 and MA3-4P Modulated Amplier
Sensors are epoxy-encapsulated and optics are hermetically sealed. Cables are 6 -1/2 feet (2m) long. 30-foot (9m) cables available by special
order.
Models/Dimensions
Excess Gain
Beam Pattern
OPPOSED Mode
ALL MODELS
Range: 8 feet (2,4m)
Beam: infrared, 880nm
Effective Beam:
0.14 inch (3,6mm) dia.
PT models are receivers
LR models are emitters
LR200 & PT200
Temp. range: -40 to +100°C
Housing material: black Delrin
LR/PT200, 250, 300, and 400 opposed mode remote sensors are
identical electronically and optically, and differ only in their housings.
All are totally epoxy-encapsulated and use hermetically sealed glass
lenses to eliminate condensation inside the optical chamber. These
sensors may be washed down without damage. Operating temperature
is determined by the type of cable used (see specications above). All
models have a wide beam angle for forgiving line-of-sight alignment.
At the same time, the effective beam of each pair is only 1/8 inch, allowing small-prole resolution and reliable response to fast-moving
objects. LR models are emitters, and PT models are receivers.
LR200 & PT200: this is a right-angle design which mounts through
a 7/16 inch (12mm) diameter hole, using the steel jam nut which is
included. This pair is used most commonly on small conveyors when
it is desireable to run the cable directly down to a wireway.
LR250 & PT250: these sensors feature a 1/4 inch (6,4mm) diameter
smooth barrel design, and are usually held in place in a clearance hole
with a small set-screw. Optional mounting blocks (shown below)
are available. Model SMB250 holds the sensor in place with two
set-screws. The block is then mounted to a bracket (such as model
SMB300), or directly to a machine frame with two #6 screws. Block
model SMB250C holds an LR & PT250 together to converge at approximately 1/2 inch ahead of the block.
SMB250 SMB250C
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LR250 & PT250 LR300 & PT300 LR400 & PT400
Temp. range: -40 to +100°C
Housing material: black Delrin
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Temp. range: -40 to +80°C
Housing material: black VALOX
LR & PT300: this is a miniature right-angle design which is mounted
in place using two #4 screws. This pair uses a very exible, low-prole
2-wire cable. Despite their small size, the optical performance of the
LR/PT300 is equal to the other remote sensor pairs.
LR400 & PT400: the 3/8 inch (9,5mm) diameter threaded barrel design makes the LR/PT400 the most versatile and most popular remote
opposed sensor pair. They are easily mounted through clearance holes
using the jam nuts which are supplied. They may be used with optional
L4 or L16 lenses for extended range and/or higher excess gain. The
addition of an L4 lens on both the LR and PT400 will increase their
range from 8 feet to 40 feet and increase the excess gain at any distance
by a factor of 25X. A pair of L16 lenses will increase available excess
gain by a factor of 250X.
L4 lens
The LR/PT400 pair is often used at close range with optional AP400 aperture
assemblies to create a very small and well-dened effective beam for resolving small proles, increasing sensing repeatability, or easing response time
requirements.
AP400 apertures
Temp. range: -40 to +100°C
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Housing material: anod. aluminum
L16 lens
Aperture model
AP400-010
AP400-015
AP400-040
AP400-030R
Aperture size
.010" dia.
.015" dia.
.040" dia.
.030" x .125"
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