MARK•EYE PRO High-Resolution Registration Mark Sensor

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The MARK•EYE^®PRO sensor detects printed registration marks on a continuous web running at high-speeds. It delivers high-resolution by utilizing the broadband characteristics of a white light LED for detecting the greatest variety of color combinations on any color background. The “one-touch” AUTOSET routine can be accomplished by pushing the appropriate button on the sensor or from a remote push-button switch. Simply put the background in view and press the black button if the background is darker than the registration mark or press the white button if the background is lighter than the registration mark. Utilize either apertured V-axis (V4A) lens or fiber optic light guides. We recommend using glass fiber optic light guides for detecting low contrast registration marks. Plastic light guides can also be used as well as a variety of fiber optic accessory lenses to enhance sensing performance.

High Intensity

Features
Specifications
Dimensions
Models & Ranges
Light Sources
Optical Blocks
Applications
Downloads

AGS AUTOMATIC GAIN SELECT
This unique feature provides automatic digital selection of amplifier gain based upon your sensing requirements.

AUTOSET ADJUSTMENT
The AUTOSET adjustment routine only requires the push of one button, one time. Even in a dynamic operating condition, with ongoing input events, all that is required is to push the button for a perfect setting.

EDR^®
Another unique feature is the digitally controlled EDR (Enhanced Dynamic Range) circuit. It prevents dark state saturation and expands the operating range without reducing amplifier gain.

REMOTE AUTOSET
To remotely AUTOSET the sensor, apply a momentary contact closure from the AUTOSET input wire to negative as shown in the wiring diagram. A remote AUTOSET command will duplicate the last manual AUTOSET.

5 LED DUAL FUNCTION INDICATOR
Contrast Indicator – Provides “at-a-glance” performance data.
Status Indicator – Displays status of selectable features:
Lock – When this feature is enabled the sensor becomes tamperproof. Note: The remote AUTOSET is not affected by the lock.
Output Invert – Allows the sensor to be programmed for the output transistors to be “ON” or “OFF” when the registration mark comes into view.
Timer – When the “OFF” delay pulse stretcher is enabled, the output duration is extended by 10, 25, or 50 milliseconds (not additive). Enabling the Timer allows ample time for the controller to respond. The time durations of the gap between marks must be less than the selected delay.

CONNECTIONS
Built-in 12 mm connector or 6' cable.

MOUNTING OPTIONS
Built-in DIN rail “Snap-On” design, through hole, or bracket mount.

MarkEyePro Features

Features and Options:

White Light LED
175µs or 45µs models available
Interchangeable optical blocks; Fiber Optic or V-axis lens.
Pulse Stretch Timers; 10ms, 25ms, or 50ms selectable.
One button push setup
Outputs automatically configured for mark
Remote AUTOSET wire
Button lock
Cable or connector version

Benefits:

Highly accurate for precise detection of marks at high speeds
High resolutions for a variety of colored marks on various colored backgrounds
Timers to assist in overcoming inconsistent web materials, or false triggers
Remote setup for hard to reach areas
Flexibility in sensing applications reduces inventory costs and setup time

SUPPLY VOLTAGE:
10 to 30 VDC
Polarity Protected

CURRENT REQUIREMENTS:
45 milliamps (exclusive of load)

OUTPUT TRANSISTORS:
(1) NPN and (1) PNP sensor output transistor
Outputs can sink or source up to 150 milliamps (current limit)
All outputs are continuously short circuit protected

REMOTE AUTOSET INPUT:
Opto-isolated momentary sinking input (10 milliamps)

RESPONSE TIME:
MEP45WL - Light/Dark = 45 µs
Repeatability = 13 µs
MEP - Light/Dark = 175 µs

LED LIGHT SOURCE:
White LED provides detection of registration marks of the widest variations of contrasting colors

PUSH BUTTON CONTROL:
AUTOSET
Manual Adjustments
Set status of 5 options: 5) Lock, 4) Output Invert, and Pluse Stretchers, 3) 10 ms, 2) 25 ms, 1) 50 ms

HYSTERESIS:
Set for high resolution ... less than one bar on the Contrast Indicator.

LIGHT IMMUNITY:
Responds to sensor's pulsed modulted light source... immune to most ambient light and strobes, including direct sunlight.

DIAGNOSTIC INDICATORS:
5 LED Bar graph functions in one of two modes:
1. Contrast Indicator ... Displays scaled reading of sensor's response to contrasting light levels (light to dark).
2. Status Indicator ... displays status of 5 selectable options.
Red LED output indicator ... Illuminates when the sensor's output transistors are "ON".
Note: If Output LED flashes, a short circuit condition exist.
Amber LED ... Illuminates when in the options select mode.
Yellow LED ... Illuminates when the lock feature is activated.

AMBIENT TEMPERATURE:
-40ºC to 70ºC (-40ºF to 158ºF).

RUGGED CONSTRUCTION:
Chemical resistant high impact polycarbonate housing.
Industry Ratings: NEMA 4X, 6P, and IP67

Features and Options:

White Light LED
175µs or 45µs models available
Interchangeable optical blocks; Fiber Optic or V-axis lens.
Pulse Stretch Timers; 10ms, 25ms, or 50ms selectable.
One button push setup
Outputs automatically configured for mark
Remote AUTOSET wire
Button lock
Cable or connector version

Benefits:

Highly accurate for precise detection of marks at high speeds
High resolutions for a variety of colored marks on various colored backgrounds
Timers to assist in overcoming inconsistent web materials, or false triggers
Remote setup for hard to reach areas
Flexibility in sensing applications reduces inventory costs and setup time

Drawing

Features and Options:

White Light LED
175µs or 45µs models available
Interchangeable optical blocks; Fiber Optic or V-axis lens.
Pulse Stretch Timers; 10ms, 25ms, or 50ms selectable.
One button push setup
Outputs automatically configured for mark
Remote AUTOSET wire
Button lock
Cable or connector version

Benefits:

Highly accurate for precise detection of marks at high speeds
High resolutions for a variety of colored marks on various colored backgrounds
Timers to assist in overcoming inconsistent web materials, or false triggers
Remote setup for hard to reach areas
Flexibility in sensing applications reduces inventory costs and setup time

Model	Description
5-Conductor, Cabled attached:
MEP45WL	45µs Response Time, White LED
MEPWL	175µs Response Time, White LED
5-Pin Micro Pigtail Connector (M12):
MEP45WLC	45µs Response Time, White LED
MEPWLC	175µs Response Time, White LED

1. Select Sensor Model: MEP45, MEP

2. White light source: WL

3. Select Connector

Blank - 6' (1.8m) Cable
C - 6" (.015m) Pigtail M12 Connector

4. Select Optical Block based on sensing mode:

F4 - Glass Fibers 0.25" (6.4mm) to 0.50" (12.7mm) range
F5 - Plastic Fibers 0.25" (6.4mm) range
V4A - Apertured V-Axis 0.75" (19.1mm) to 1.0" (25.4mm) range

Features and Options:

White Light LED
175µs or 45µs models available
Interchangeable optical blocks; Fiber Optic or V-axis lens.
Pulse Stretch Timers; 10ms, 25ms, or 50ms selectable.
One button push setup
Outputs automatically configured for mark
Remote AUTOSET wire
Button lock
Cable or connector version

Benefits:

Highly accurate for precise detection of marks at high speeds
High resolutions for a variety of colored marks on various colored backgrounds
Timers to assist in overcoming inconsistent web materials, or false triggers
Remote setup for hard to reach areas
Flexibility in sensing applications reduces inventory costs and setup time

LIGHT SOURCE SELECTION

White Light Source
(Broadband Color Spectrum)
The “White Light” LED light source promotes easy detection of the largest variety of color marks printed on the largest variety of colored web materials. By combining a white LED light source, our Contrast Indicator, and the one-push AUTOSET setup, you have a winning combination of high performance with an easy to use sensor.

Features and Options:

White Light LED
175µs or 45µs models available
Interchangeable optical blocks; Fiber Optic or V-axis lens.
Pulse Stretch Timers; 10ms, 25ms, or 50ms selectable.
One button push setup
Outputs automatically configured for mark
Remote AUTOSET wire
Button lock
Cable or connector version

Benefits:

Highly accurate for precise detection of marks at high speeds
High resolutions for a variety of colored marks on various colored backgrounds
Timers to assist in overcoming inconsistent web materials, or false triggers
Remote setup for hard to reach areas
Flexibility in sensing applications reduces inventory costs and setup time

Type F4 Glass Fiberoptics	Type F5 Plastic Fiberoptics	Type V4A Apertured
Adapter for use with a wide variety of glass fiberoptic light guides for both the proximity and opposed sensing modes.	Adapter for use with a wide variety of plastic fiberoptic light guides for both the proximity and opposed sensing modes.	Useable range of 1".