Banner MA3-4P Stereo Amplifier User Manual


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Model MA3-4P: PNP (current sourcing) output
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 ad-
justable via a top-mounted GAIN potentiometer. Circuitry is epoxy-encapsulated and
protected by a tough molded VALOX
®
housing. Connections may be made to these
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 innite life. Wide beam angles eliminate alignment problems, and high optical gain permits reliable sensing under severe condi-
tions.
OUTPUT: two PNP transistors, complementary outputs; one normally open (light operate) and one normally closed (dark operate). 150 mil-
liamps maximum, each output. Saturation voltage less than 1V dc at 10 milliamps. Off-state leakage current less than 1 microamp.
Model MA3-4P has the same specications and performance as the MA3-4 amplier, except that the MA3-4P has complementary PNP outputs
in place of the MA3-4's NPN conguration.
P/N 03341F3G
Printed in USA
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).
MICRO-AMP MA3-4 Specications
SUPPLY VOLTAGE: 10 to 30V dc at less than 20 milliamps (exclu-
sive 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 maxi-
mum, 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.
Functional Schematic, MA3-4
Hookup Diagram, MA3-4
MICRO-AMP
®
System
MA3-4 and MA3-4P Modulated Ampliers
Hookup Diagram, MA3-4P
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