Specifications

SUPPLY VOLTAGE INDICATORS

•12 to 24 VDC • OUTPUT INDICATOR - RED LED
•Polarity Protected illuminates and the NPN or PNP
CURRENT REQUIREMENTS outputs switch to the opposite
•85 mA (exclusive of load) state when returned light level
OUTPUT TRANSISTORS exceeds “5” on the CONTRAST
•(1) NPN and (1) PNP Output INDICATOR
transistor: • EDR™ INDICATOR - Intensity of
•NPN: Sink up to 150 mA GREEN LED provides indication of
•PNP: Source up to 150 mA LED LIGHT SOURCE where in the dynamic operating
•Momentary short circuit protected •Pulse modulation rate 45 KHZ range the offset, EDR TM adjustment
•Outputs protected from pulsing •Choice of color: has been set
during power up A. Infrared = 880nm • FULLY LlT: Operating near saturation
•Light/dark switch determines B. Red = 660nm • OFF: Operating near maximum
Output Status: C. White = Broadband Color Spectrum
sensing range
Light = Light “ON” operate D. BIue = 480nm
• CONTRAST INDICATOR – Displays
Dark = Dark “ON” operate LIGHT IMMUNITY
scaled reading of sensor's response
RESPONSE TIME •Responds to sensor's pulsed
to contrasting light levels (light vs.
•Minimum duration of input event modulated light source
dark) on a 10 bar LED display
•Light state response = •Immune to most ambient light
50 microseconds OFFSET/EDR ® ADJUSTMENT AMBIENT TEMPERATURE
•Dark state response = •Sets initial level on CONTRAST • - 40°C to 70°C (- 40°F to 158°F)
140 microseconds INDICATOR in relation to mid-scale RUGGED CONSTRUCTION
•Leading edge Variation less than 20 switch point of 5 – functions as •Chemical resistant, high impact
microseconds sensitivity adjustment polycarbonate housing
HYSTERESIS •Controls Enhanced Dynamic Range •Waterproof, NEMA 4X, 6P and IP67
•Less than 400 millivolts for maximum circuit (EDRTM ) which functions to enclosure ratings
sensitivity and resolution avoid saturation •Epoxy encapsulated for mechanical
strength
Product subject to change without notice.
Consult Factory for RoHS Compliance.

Connections and Dimensions SMARTEYE® MARK II PHOTOELECTRIC SENSOR

800-237-0946 Rev. 2 070-0067

CONGRATULATIONS!
You have just purchased a high performance SMARTEYE Mark II photoelectric sensor. The
SMARTEYE Mark II has higher speed of response (50 microseconds) and even higher gain than the
original SMARTEYE. These improved performance attributes allow the sensor to resolve the most
difficult sensing tasks. As a result of the Mark II sensor’s increased sensitivity, it is necessary to alter the
original SMARTEYE setup procedure.

Simplified Setup Procedures

NOTE: The original SMARTEYE setup procedures called for a Light State setting of 9 to 10 on the
Contrast Indicator. To obtain the correct Light State setting on a SMARTEYE Mark II, please follow these
simple instructions:

1. Aim the sensor at the target in the bright-state condition.

2. Adjust the offset adjustment to obtain a reading of 10. Then, continue to rotate the adjustment
clockwise ¼ of a turn.

This is generally the only setup procedure requirement. However, if in turn, the Dark State does not
result in a reading of zero (all LED’s off), it may be necessary to re-adjust the offset so that the Light
State/Dark State contrast deviation, as displayed on the Contrast Indicator, straddles the switchpoint of
“5”. On rare occasions when this procedure is required, it may be advisable to make the offset
adjustment in dynamic conditions when input events are ongoing.

Contrasting Light Levels

When operating in the Beam Break mode, the The amount of difference or deviation of the
intensity of the light beam reaching the intensity of the light beam in its lightest state
receiving lens is in its brightest or lightest condition vs. the intensity of the received light
state condition before an object in introduced beam in the darkest state is called
into the light beam path. Introducing an “Contrast”.
object into the light beam path will block out
or diminish the intensity of the received light The sensing task of any digital switching
beam, resulting in the darkest state condition. photoelectric sensor is to respond to and
resolve the difference between the
In the Beam Make mode, the darkest state contrasting light levels and switch its output
condition is before an object is placed in the accordingly.
light beam path. The lightest state condition
is when an object is introduced into the light These contrasting light levels define the
beam path so as to bounce or reflect the light degree of difficulty of the sensing task.
beam to the receiving lens.

070-0093 Rev.2
12-07