Model ALV 830 – General Purpose

For most of typical applications

Model ALV 830 point level switch for solids offers all the essential features. It is ideal for typical applications such as overfill prevention, high level detection, low level detection etc. This instrument is also available in remote version.

Features

Calibration free and easy installation.
Insensitive to material build-up.
Field selectable fail safe mode.
Adjustable time delay.
Meets International Standards
Built-in Diagnostics
Customer specified insertion lengths up to 6m with cable or pipe extensions.
Compact as well as remote mounted versions available

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Technical Specifications
Applications
Operating Principle
Literature
Other Models

Mains supply : 85 Vac to 265 Vac
Output : Relay, Open collector
Time delay : 2 to 30 sec adjustable
Response Time : < 1sec
Fork Vibrating Frequency : 80 Hz ± 5 Hz
Ambient temperature : -20 to 60° C
Process temperature : up to 80° C; Optional: up to 150° C
Housing : Cast Aluminium
Protection : IP 67

Dry Powders – Cement, Pulverized coal, Coffee Powder, Milk Powder, Chemical Powder
Fine Grained Solids – Food Grains, Plastic Pellets, Wood

A low frequency signal is used to vibrate the piezo-electric crystal. The crystals connected to the tines of the fork cause them to vibrate. On contact with the material, these vibrations get damped. The attenuation in the vibrations is sensed by the electronics that generates an alarm.

Brochure

Model ALV 810 – Compact

Overview

Model ALV 830 – General Purpose

For most of typical applications

Features

Model ALV 810 – Compact