Manual
When wiring two sensors to one 
MAXI-AMP, multiply excess gain 
data (from excess gain curve) for 
each sensor by 1/2; when wiring 
three sensors to one MAXI-AMP, 
multiply excess gain by 1/3.
MAXIMUM SENSOR LEAD LENGTH: 30' (9m). 
POWER SUPPLY REQUIREMENT: 10-30V dc at less than 20mA; 10% maximum 
ripple (obtainable from MPS-15 power supply--see above).
OUTPUT CONFIGURATION: model MA3-4 has two open-collector NPN (cur-
rent sinking) transistor solid state switches, one normally open, one normally closed.  
150mA max. each output. Model MA3-4P has two PNP (sourcing) outputs, 150mA 
max. each. 
RESPONSE SPEED: 1 millisecond ON and OFF.  
OPERATING TEMPERATURE RANGE: 
-40 to +70 degrees C (-40 to +158 degrees F). 
Hookup to MICRO-AMP
® 
Modules
MICRO-AMP  amplier  module  models  MA3-4  and  MA3-4P  may 
be used with this sensor.  Model MA3-4 has complementary current 
sinking outputs.  Model MA3-4P has complementary current sourc-
ing outputs.
Model MA3-4 (but not model MA3-4P) may be powered by the model 
MPS-15 power supply, as shown in the hookup diagram (right).  The 
MPS-15  includes  a  socket  for the  MA3-4 and  has a  built-in SPDT 
output relay (switchable by the MA3-4 module).
MICRO-AMP modules may also be mounted in a model RS8 wiring 
socket and powered from a "remote" power supply.  PVC mounting 
track is available in 6" and 12" lengths to accommodate multiple MI-
CRO-AMP system components.
NOTE: only one SP300L may be connected to each amplier.
Specications, MAXI-AMP CM Series Modules
RESPONSE SPEED: programmable for 10, 2, or 0.3 milliseconds (10 millisecond setting enhances noise rejection).
MAXIMUM SENSOR LEAD LENGTH: 50' (15m) maximum. 
To avoid "cable crosstalk", use separate shielded cable for emitter and receiver, or order sensors with extended cable length.
OPERATING TEMPERATURE RANGE: 0 to +50 degrees C (+32 to +122 degrees F).
To a Single Sensor
"light") or dark-operated AND logic (input to module occurs when all 
receivers simultaneously see "dark") is possible.  
CM Series modules combine power supply, modulated photoelectric 
amplier,  timing  logic  (CM5  models),  and  output  relay  in  a  single 
compact module. Only an 11-pin relay socket (Banner model RS-11) 
is needed to complete the system.
The CM Series contains models with or without programmable timing 
logic and with either electromechanical or solid-state relay outputs.  See 
the Banner product catalog for further information.
Up to three sensors may be connected to each amplier.  Light- operated 
OR logic (input to module occurs whenever at least one receiver sees 
NOTE: to power the MAXI-AMP from a DC power supply, connect 
+12 to 28V dc at ≥70mA to terminal #3 and DC common to terminal 
#1. Make no connections to terminal #7 or #8.
Hookup to MAXI-AMP™ CM Series Modules
WARNING  These photoelectric presence sensors and ampliers do NOT include the self-checking redundant circuitry necessary 
to allow their use in personnel safety applications.  A sensor or amplier failure or malfunction can result in either an energized or a 
de-energized sensor output condition.
Never use these products as sensing devices for personnel protection.  Their use as safety devices may create an unsafe condition which 
could lead to serious injury or death.
Only MACHINE-GUARD and PERIMETER-GUARD Systems, and other systems so designated, are designed to meet OSHA and ANSI machine safety 
standards for point-of-operation guarding devices.  No other Banner sensors or controls are designed to meet these standards, and they must NOT be used 
as sensing devices for personnel protection.
Specications, MICRO-AMP MA3-4 & MA3-4P
Banner Engineering Corporation 9714 10th Ave. No., Minneapolis, MN 55441 Tel. (612) 544-3164 FAX (orders): (612) 544-3213 FAX (Applications): (612) 544-3573
To Multiple Sensors


