D12 Expert Series –
TEACH-Mode Fiber Optic Sensors
One-button programmable sensors for use with glass or plastic fibers
Printed in USA
P/N 41974G8B
**NOTE:9 m (30') cables are available by adding suffix “W/30” to the model number of any cabled sensor (e.g., D12EN6FP W/30)
D12 Expert Series Glass Fiber Optic Models
D12 Expert Series Plastic Fiber Optic Models
Models
Switching Threshold
Setting
Cable**
Supply
Voltage
Output Type
Maximum Range
D12EN6FV
Just above the “dark”
condition
2 m (6.5')
10-30V dc
NPN (sinking)
Range varies by sensing mode and fiber
optics used; see page 11.
D12EP6FV
PNP (sourcing)
D12E2N6FV
Midway between “dark”
and “light” conditions
NPN (sinking)
D12E2P6FV
PNP (sourcing)
D12EN6FP
Models
Switching Threshold
Setting
Cable**
Supply
Voltage
Output Type
Maximum Range
Just above the “dark”
condition
2 m (6.5')
10-30V dc
NPN (sinking)
Range varies by sensing mode and fiber
optics used; see page 12.
D12EP6FP
PNP (sourcing)
D12E2N6FP
Midway between “dark”
and “light” conditions
NPN (sinking)
D12E2P6FP
PNP (sourcing)
IMPORTANT: SEE SAFETY USE WARNING ON PAGE 4
D12 Expert Features
•
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 ignore 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 configuration settings
•
7-segment LED bargraph indicates relative received signal strength and sensing
contrast, programming status, and diagnostic trouble warnings
•
Marginal sensing alarm
•
Separate input allows remote programming by an external device, such as a
switch or a process controller
*U.S. Patent #5808296
