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45LM Series Modules
Plug-in Logic and Display Modules for Q45 Series Sensors
Printed in USA P/N 37250 Rev. B
45LM Series Description
Operating Temperature -40 to +70°C (-40 to +158°F)
Timing Adjustments
Two 15-turn clutched potentiometers with brass elements, accessible from outside at the top of sensor,
beneath an o-ring sealed Lexan
® cover.
Timing Repeatability Plus or minus 2% of the timing range (maximum); assumes conditions of constant temperature and power supply.
Useful Time Range
Useful time range is from maximum time down to 10% of maximum. When the timing potentiometer is set fully
counterclockwise, time will be approximately 1% of maximum.
Response time A disabled timing function adds no measurable sensing response time.
LED Display
Seven-element LED display, visible through transparent top sensor cover. The more LEDs that are lit, the
stronger is the received light signal; three LEDs lit is equivalent to an excess gain of about 1x (see page 3).
Q45 Series sensors easily accept the addition of timing and signal strength display
functions. Seven plug-in modules are available to provide various combinations of
these features; see Figure 1. All modules install easily under the sensor’s black
inner cover. Modules interconnect to the sensor circuitry without wires. Timing
adjustments are easily accessible.
Timing Logic Functions
Programming of output timing on those models which feature logic functions (see
Figure 1) is done via a bank of 4 DIP switches located on the module. These
modules feature 15-turn clutched potentiometers for accurate timing adjustments.
See page 2 for timing ranges and logic settings.
LED Signal Strength Display Function
Modules with the 7-element display of relative signal strength give a more precise
indication of excess gain than does the AID™ system LED* (standard on all Q45
sensors); see page 3 for more information. This feature is extremely valuable for
sensor setup and alignment, for critical evaluation of alternative sensing schemes,
and for close monitoring of sensing performance over time (i.e., dirt build-up or
progressive misalignment). The more LEDs that are lit, the stronger the light signal
being received by the sensor. (Three segments lit indicate an excess gain of
approximately 1x.)
*U.S. Patent no. 4356393
Module
Model
Number
Output Timing
45LM8M1 X
7-Segment
Signal
Strength
Display
45LM5 X
45LM8DM1 X
45LM8
X
X
45LM5D X X
45LM8D X X
45LMD X
ON/
OFF
Delay One-Shot/
Delayed
One-Shot
45LM Series Modules Specifications
Figure 1. 45LM Series Module