Witt Sensoric GmbH
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The SIGNAL12 is a photoelectric thru-beam sensor for pressure-sensitive safety edges (PSSE) for industrial doors. The emitter and receiver must be plugged into the circular hollow chamber of a rubber profile. If the rubber profile is compressed in the closing movement of the door leaf, the signal at the receiver is reduced and triggers a signal to the evaluation unit.
1 LED-flash = ideal conditions
2 LED-flashes = good conditions
3 LED-flashes = operational limit reached
The new optical system allows for particularly large door widths and improved switching behavior when the door is bent due to wind load.
Working principle in uncompressed condition. A photoelectrical signal is received.
Working principle in compressed condition. No photoelectrical signal is received.
The safety edge can be either connected via a junction box with the door control unit or via a remote wireless box to save the spiral cable. The low-power SIGNAL uses the "duo-switch" detection process to set itself to spiral cable or battery operation. This is done automatically by detecting the operating voltage applied. The result is optimum characteristics for the respective operating conditions.
SIGNAL12LP or SIGNAL12ECO with robust long-living LAD junction box
SIGNAL12ECO with wireless solution from our partner company AERF
| SIGNAL12ECO | SIGNAL12LP | |
|---|---|---|
| operating voltage | battery mode: 3...6V spiral cable: 9...27V |
battery mode: 3...6V spiral cable: 9...27V |
| current consumption | battery mode: typ. 1,6mA spiral cable: typ. 3,8mA |
battery mode: typ. 1,6mA spiral cable: typ. 3,8mA |
| range | 1...12m | 1...12m |
| diagnostics display | - | 1...3 flashes |
| signal frequency | battery mode: typ. 400Hz spiral cable mode: typ. 900Hz |
battery mode: typ. 400Hz spiral cable mode: typ. 900Hz |
Note: Table is horizontally scrollable
Optoelectronic safety edge
Through-beam safety light barrier for force limitation at the closing edge — for sectional and high-speed doors up to 12 metres wide.
Enquiry & documents
Guides & videos
The range covers wide sectional and high-speed doors without the need to monitor the closing edge in separate sections.
Fully encapsulated design. Dust and temporary immersion do not affect the electronics — outdoors as well as during cleaning with water.
Signal transmission runs either via radio module or spiral cable, so the connection method can be matched to the existing door system.
An integrated diagnostic system shows the status optically, and an LED indicates the switching state. Fault finding works without a measuring instrument.
Wind load and deflection of the door leaf have less influence on detection. Transmission power is regulated rather than fixed.
The output is an OSE signal and works with all common door control systems — no change of system when retrofitting.
| Function & application | |
|---|---|
| Device type | Through-beam safety light barrier, transmitter and receiver |
| Application | Closing edge monitoring, force limitation at the main closing edge |
| Suitable door systems | Sectional doors, high-speed doors |
| Max. door width | 12 m |
| Installation | Mounted in a rubber profile |
| Design | |
| Degree of protection | IP67, fully encapsulated |
| Signal transmission | Radio module or spiral cable |
| Cable length, transmitter | 1 m |
| Cable length, receiver | 10.5 m |
| Connector | Open ends or Molex plug (depending on version) |
| Signal & indication | |
| Output signal | OSE |
| Controller compatibility | All common control systems |
| Indication | LED for switching state, integrated optical diagnostics |
| Transmission power | Regulated |
| Standards & approval | |
| Standards met | EN 12978, EN 12453 |
| Approval | EC type-examination certificate available (download above) |
For complete specifications please refer to the data sheet. Subject to change.
| Model | Version | Order no. | Data sheet |
|---|---|---|---|
| SIGNAL12LP-P-12M-OS-1/10.5M | Transmitter 1 m / receiver 10.5 m | 70181957 | |
| SIGNAL12LP-P-12M-OS-1/10.5MOL | Transmitter 1 m / receiver 10.5 m, Molex plug | 70181958 |
For matching components — rubber profiles, spiral cables, radio modules — please see our accessories for safety edges.
Tell us the door width, door type and control system — we will let you know which version fits and prepare a quotation. Available Mon–Fri, 8:00 to 16:30.