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D12 expert series - teach-mode fiber optic sensors, Overview

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One-button programmable sensors for use with glass or plastic fibers

• Fiber optic sensors for DIN rail mounting; 10 to 30V dc operation
• Visible red (680 nm) light source; models for use with either glass or plastic fibers
• High optical sensing power when needed, also excels at low-contrast sensing
• Easy TEACH-mode programming automatically adjusts sensitivity to optimal setting*
• D12E sensors are designed for low-contrast sensing applications (switching threshold set to just

above the “dark” condition)

• D12E2 sensors set their switching threshold midway between the “dark” and “light” conditions to ig-

nore subtle changes, such as web flutter

• Output may be programmed for either light or dark operate
• Fast 200 microsecond sensing response; programmable 40 millisecond pulse stretcher
• Secure one-button programming is easy to use; one button sets both TEACH and sensor configura-

tion settings

• 7-segment LED bar graph indicates relative received signal strength and sensing contrast, program-

ming status, and diagnostic trouble warnings

• Marginal sensing alarm
• Separate input allows remote programming by an external device, such as a switch or a process con-

troller

* U.S. Patent(s) issued or pending

D12 Expert Series Glass Fiber Optic Models

Models

Switching Threshold Setting

Output Type

Maximum Range

D12EN6FV

Just above the “dark” condition

NPN (sinking)

Range varies by sensing mode and fiber
optics used; see

Glass Fiber - Opposed

Mode

on page 9.

D12EP6FV

PNP (sourcing)

D12E2N6FV

Midway between “dark” and “light”
conditions

NPN (sinking)

D12E2P6FV

PNP (sourcing)

D12 Expert Series Plastic Fiber Optic Models

Models

Switching Threshold Setting

Output Type

Maximum Range

D12EN6FP

Just above the “dark” condition

NPN (sinking)

Range varies by sensing mode and fiber
optics used; see

Plastic Fiber - Opposed

Mode

on page 11.

D12EP6FP

PNP (sourcing)

D12E2N6FP

Midway between “dark” and “light”
conditions

NPN (sinking)

D12E2P6FP

PNP (sourcing)

Standard 2 m (6.5 ft) cable models are listed. To order the 9 m (30 ft) cable model, add suffix "W/30" to the cabled model number
(D12EN6FV W/30).

WARNING: Not To Be Used for Personnel Protection
Never use this device as a sensing device for personnel protection. Doing so could lead to serious
injury or death.
This device does not include the self-checking redundant circuitry necessary to allow its
use in personnel safety applications. A sensor failure or malfunction can cause either an energized or de-
energized sensor output condition.

Overview

D12 Expert self-contained sensors offer one-button programming that provides security for your settings, yet is simple to set. D12 Expert
sensors offer two programming modes: TEACH mode and SENSOR OUTPUT CONFIGURATION mode. The D12 Expert also features

D12 Expert Series - TEACH-Mode Fiber Optic Sensors

P/N 041974 Rev. D

5/2/2013

0 041974

9

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