The Velemeter® C provides highly accurate speed and length measurements and all the advantages of non-contact laser based measuring equipment. The sensors are used in mass flow application as well as for elongation measurement.
As a supplementary sensor to the well established Velemeter® 500 series, the Velemeter® C is the more compact version but also makes use of the advantage of a He/Ne Laser tube.
The Velemeter® C is designed for use in or attached to C-frames of thickness gauges and has an integrated angle optic. The sensor head is mounted to the direction of movement of the material, usually at a standard stand-off distance of 450 mm. We can also provide every stand-off distance between 300 and 1500 mm to allow easy mounting at the mill construction.
The digital signal converter box (DAB) has to be mounted in a cubicle by the user. As basic information we supply a pulse output. The pulse frequency is equal the Doppler frequency and can be supplied with 2 or 4 channels according to the RS422 standard. This output is compatible to mechanical encoders.
Based on this, it is possible to do an upgrade from mechanical encoders to non-contact sensors and still use the same mill control system.
|Measuring range*:||3 – 3000 m/min|
|Resolution*:||ca. 6 µm|
|Stand off distance, flexible:||300 - 1500 mm|
|Depth of field*:||± 10 mm - ± 50 mm|
|Accuracy:||± 0,05 % (3 Sigma)|
|Repeatability:||± 0,01 %|
|Laser light source:||He / Ne Laser, 632.8 nm, red, visible|
|Guaranteed lifetime:||5 years|
|Pulse output equivalent to the Doppler frequency:||RS 422|
|Analogue output for signal quality:||0-10 V / 4-20 mA|
|Diagnose interface for service:||RS 485|
|Dimension (L x W x D)||470 x 195 x 139 mm|
* depends on the stand-off