Web edge control - web edge monitoring in the high temperature area
Detecting the web edge of high-speed endless tapes such as a felt in a paper machine is no easy task:
- mechanical switches wear out and can also affect the web edge;
- horizontal oscillation often cannot be controlled with sufficient precision by means of a digital switch;
- sophisticated measuring systems cannot withstand high environmental stress caused by temperature, moisture and pollution.
We offer you two fibre-optic sensor systems which can reliably detect web edges even in high-temperature areas for the secondary control:
|Technical specifications||SensoWeb „Edge-binary“||SensoWeb „Edge-analogue“|
|Supply voltage||12-30 VDC||24 VDC / 230 VAC||24 VDC / 230 VAC|
|Output||PNP / NPN||change-over relay / PNP||4-20 mA|
|Connection||cable/ plug||clamps / plug||clamps / plug|
|Fibre optics length||up to 13 m||up to 10 m|
|Working distance||100 – 500 mm||ca. 150 mm|
SensoWeb Edge Datasheet
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