Vls 200 Introduction; Product Features; Principle Of Operation - Milltronics POINTEK VLS 200 Manual De Instrucciones

VLS 200 Introduction

Notes
• Installation, maintenance and commissioning must be performed by qualified
technical personnel.
• The VLS 200 must be used only in the manner outlined in this instruction manual.
The Pointek VLS 200 is a vibrating level switch that detects high or low levels of dry bulk
solids in bins, silos, or hoppers. The VLS 200 provides a contact output for levels of
products such as lime, styrofoam, flour, and plastic granules. With a compact design, the
VLS 200 can be top- or side-mounted. The vibrating fork design of the VLS 200 provides
constant self-cleaning to the tines.

Product Features

• High resistance to mechanical forces
• Strong vibration resistance to high bulk material loads
• Rotatable enclosure
• Stainless steel 1½" NPT or R 1½" DIN 2999 (tapered) threaded connection
• Suitable for low density material (20 g/l or 1.2 lb/ft
Product Applications
• Lime, styrofoam, flour, plastic granules
• Low or high bulk density materials

Principle of Operation

A signal from the electronic circuit excites a crystal in the probe causing the fork to
vibrate at a frequency of 125 Hz. If the fork is covered by material, the change in vibration
is detected by electronic circuitry which causes the relay to change state after a one
second delay. When the material no longer reaches the tines, full vibration resumes and
the relay reverts to its normal condition.
WARNING: This product is designed as a Pressure Accessory per
Directive 97 / 23 / EC and is not intended for use as a safety device.
WARNING: Materials of construction are chosen based on their
chemical compatibility (or inertness) for general purposes. For
exposure to specific environments, check with chemical
compatibility charts before installing.
7ML19981FT61 Pointek VLS 200 – INSTRUCTION MANUAL
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