Sensor Applications
Application Note
January 2008
New Information
The sensor applications on the
following pages range from basic
problems to complex problems that
can be solved only with specific CutlerHammer
®
sensors from Eaton’s
electrical business.
The solution is summarized along with
the Catalog Numbers of suggested
models to be used. Note that many
sensors are interchangeable; slight
differences in the application may
dictate the choice of one sensor over
another. When full Catalog Numbers
are listed, that specific model is
suggested. Where no Suffix is given
1451B ) or only one family is
(e.g.
listed, the choice of a specific model
within the suggested type would be
determined by operating voltage,
sensing range, choice of cable or
connector base, etc.
1. Broken Tool Detection
Description Catalog
E58 Perfect Prox Sensor E58-30DP or
Number
E58-18DP
Sensor
An E58 Harsh Duty Perfect Prox sensor
is used to sense for the presence of the
bit on a mill. The high sensing power
and background rejection of the
Perfect Prox allows reliable detection
through high levels of cutting fluids,
while ignoring objects just beyond the
bit. The rugged harsh duty sensor
survives constant exposure to
lubricants, cutting fluids and flying
metal chips.
2. Broken Bit Detection
Description Catalog
Tubular Inductive Proximity
Sensor
Fine Spot Comet Perfect Prox 13105
Number
E57 Product
Family or
iProx
3. Machining Processes
Description Catalog
Tubular Inductive Proximity
Sensor
Number
E57 Product
Family or
iProx
A ferrous only sensor is used in a
process where aluminum is being
machined. The ferrous only sensor
ignores the aluminum (non-ferrous)
chips from the machining process and
only detects the ferrous target.
4. Tool Position
Description Catalog
Tubular Inductive Proximity
Sensor
Number
E57 Product
Family or
iProx
A tubular E57 proximity sensor is used
to detect the position of a tool chuck.
A tubular E57 proximity sensor is used
to detect the presence of a drill bit —
should the drill bit be broken the
sensor would signal a controller. For
very small tools, a fine spot Comet
Perfect Prox will reject the background
while detecting a broken drill bit.
AP05300001E For more information visit: www.eaton.com
For assistance with these or other applications,
contact us at
1-800-426-9184
.
Application Note
Page 2
5. Bottle Filling Detection
Description Catalog
E65 Clear Object Sensor
A clear object sensor is used to sense
the presence of bottles at a filling
operation. The sensor offers high
reliability in sensing clear bottles of
different colors and thicknesses.
6. Process Control
Description Catalog
Tubular Capacitive Proximity
Sensor
A capacitive proximity sensor used to
verify fill level of bottled water on a
filling process line.
Effective: January 2008
Number
E66CBL1C or
E65VBL1C
Number
E53 Product
Family
Sensor Applications
7. Jam Detection
Description Catalog
50 Series Reflex Sensor
Time Delay Logic Module
Plug-In Relay Output Device 8532B
3" Diameter Retroreflector 6200A-6501
A reflex control with a time delay
module set for “delay dark” ignores
momentary beam breaks. If the beam
is blocked longer than the delay
period, the output energizes to sound
an alarm or stop the conveyor.
8. Conveyor System Control
Description Catalog
Tubular Inductive Proximity
Sensor
A tubular inductive proximity sensor is
used to detect the presence of metal
carriers holding parts to be machined.
Number
1450B
8251B
Number
E57 Product
Family or
iProx
9. Stack Height Control
Description Catalog
Comet Series Thru-Beam
Source
Comet Series Thru-Beam
Detector
Number
11155A
11255B
A set of thru-beam sensors determines
the height of a scissor lift. For
example, when the control is set for
“dark-to-light” energize, the lift rises
after a layer has been removed and
stops when the next layer breaks the
beam again.
10. Carton Fill-Level Detection
Description Catalog
Comet Visible-Beam Reflex
Sensor
Comet 9 Inch Perfect Prox
Sensor
3" Diameter Retroreflector 6200A-6501
E67 Long Range Perfect Prox
(preset 3 – 8 ft.)
Number
14102A
13103A
E67-LRDP
Two sensors work together to inspect
the fill level in cartons on a conveyor.
A reflex sensor senses the position of
the carton and energizes the Perfect
Prox sensor located over the contents.
If the Perfect Prox sensor does not
“see” the fill level, the carton does not
pass inspection.
For assistance with these or other applications,
contact us at 1-800-426-9184 .
For more information visit: www.eaton.com
AP05300001E
11. Box Counting
Description Catalog
Number
Prism Polarized Reflex Sensor 14151R
3" Diameter Retroreflector 6200A-6501
A Prism right-angle reflex sensor
detects boxes anywhere on a four foot
wide conveyor. Interfacing the control
with a programmable controller
provides totals at specific time
intervals. Polarized reflex optics
prevent false triggering on shiny
objects, while the high optical power
burns through box dust and
contamination.
Sensor Applications
13. Cookie Motion Detection
Description Catalog
50 Series Fiber Optic Sensor 1550B
One-Shot Logic Module
(In Retrigger Mode)
Fiber Optic Thru-Beam Cable
(2 Required)
Plug-In Relay Output Device 8532B
High temperature environments are
accommodated by the use of fiber
optics. Here conveyor motion in a
450°F cookie oven is detected. If the
motion stops, the one-shot logic
module detects light or dark for too
long, and the output device shuts the
oven down.
Number
8252A
6221B
Application Note
Effective: January 2008 Page 3
15. Tollbooth Control
Description Catalog
Number
20 Series Thru-Beam Source 1141D-6501
20 Series Thru-Beam Detector 1241D-6501
DPDT Relay Output Device 8526A-6501
E67 Long Range Perfect Prox E67-LRDP
Thru-beam source/detector or the long
range polarized reflex controls are
used to time the toll gate. To eliminate
toll cheating, the gate lowers the
instant the rear of the paid car passes
the control. The E67 Long Range
Perfect Prox allows you to mount the
sensor on one side, instead of both.
Plus with Perfect Prox, the E67 will
detect cars with different colors and
finishes while ignoring all other
background objects. The rugged
control handles harsh weather, abuse
and 24-hour operation.
12. Log Diverter
Description Catalog
Number
E51 Extended Range Sensor E51CNP4
Single-Shot Logic Module E51MSS
E67 Long Range Perfect Prox E67-LRDP
The log is detected by an extendedrange diffuse reflective control with a
single-shot logic module or a high
power E67 Long Range Perfect Prox.
The hydraulic system is energized and
the log is pushed onto a lateral
conveyor. The logic module (used with
the E51) allows for control of output
pulse timing and duration. The E67
reliably senses logs of different colors
and shapes while ignoring objects in
the background.
14. Lid Detection
Description Catalog
Tubular Inductive Proximity
Sensor
Number
E57 Product
Family or
iProx
A pair of tubular proximity sensors
used to, a) detect the presence of a can
on a conveying line, and b) check for
presence of a lid.
16. Garage Door Control
Description Catalog
80 Series High Current
Control Unit (2 Required)
Number
8880C-6501
A safe and secure garage is achieved
through the use of thru-beam controls
interfaced to the door controller. The
door shuts automatically after a car
leaves, and if the beam is broken while
the door is lowering, the motor
reverses direction and raises the door
again.
AP05300001E For more information visit: www.eaton.com
For assistance with these or other applications,
contact us at 1-800-426-9184 .