TESTER & METER > CLAVIS > HANDHELD TENSION METER > TYPE 3 CLAVIS Belt Tension gauging and setting equipment is used throughout the world for accurate and repeatable measurements of belt tension. This equipment can be used on all types of rubber composition drive belts and is used and recommended by all the major belt manufacturers.   TYPE 3: Optical meter (7-300Hz) TYPE 3: Belt meter (10-300Hz) This meter is particularly suitable for long span synchronous belts which vibrate at low frequencies below 30Hz. Measurements down to 10Hz are easily achieveable so that tension measurements may be made in belt spans of 5 metres or more. Measurements may be taken down to 4 Hz provided that the sensor head is fixed. The sensor head is 'beamed' onto the belt from distances of up to 50mm (2 inches) or more and may be directed at the flat side of the belt or the edge. The sensor is also relatively insensitive to the angle of approach An additional advantage of the optical head is that the sensor is totally unaffected by any level of background acoustic noise. In many industrial environments Infra Red noise signal pollution may be just as prevalent as acoustic noise pollution. The CLAVIS optical sensor and meter uses advanced signal processing techniques to avoid such interference. It should be remembered that at very low frequencies handshake may impart a false vibration onto the sensor head. A guide finger on the sensor may be adjusted to rest against a supporting face to minimise handshake vibrations. The products shown above are only a small part of series, please contact us for your enquiry.