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Vibrating limit level detectors
The KOBOLD NSV vibrating level monitors, available from Instrotech, are used to measure low-density (powdery), fine-grained bulk solids, such as plastic granules, cement, and food products like flour, sugar and animal feed. The devices operate on the vibrating fork principle. The fork, specifically designed for use in bulk solids, vibrates continuously, and when it is covered by a medium, the vibration behaviour changes. When the device detects this change, it is displayed on a red LED. An additional relay output is provided for signal transmission. The NSV limit level detectors are ruggedly and compactly constructed of stainless steel and are insensitive to humidity in materials. They can be mounted from either the top or the side of a bin, so they are suitable for protection against overfilling, as well as signalling minimum level accurately. Mountable evaluation electronics are well protected at the top of the device, ending in a protection class IP 65 plastic terminal box. Specific versions with elongated neck pipe of up to 3.0 m, make it easy to install vibrating forks of varying heights. The devices have no mechanical moving parts and are thus virtually maintenance-free. The NSV level monitors can be used in explosion-proof areas accord- ing to ATEX II 1/2 D Ex tD A20/A21.
Key features: - Special lengths up to maxi- mum 3 000 mm - No calibration necessary - Insensitive to moisture - Compact installation - Stainless steel fork 1.4305 - Relay output - Suitable for low bulk densities from 60 g/l - Suitable for ATEX applications.
For more information contact Instrotech. Tel: +27 (0)10 595 1831 Email: sales@instrotech.co.za Visit: www.instrotech.co.za
The KOBOLD NSV limit level detectors operate on the vibrating fork principle.
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