User Manual & Datasheet V 2.3
1
Introduction
Elixir is a Vibrating Fork Liquid Level Limit Switch. It is
suitable for level detection in storage tanks, mixing contain-
ers and pipelines, for liquids that do not react with stainless
steel (SS) whose viscosity does not exceed 10000 cP. It is
suitable for most of the applications where float switches
were previously employed, as well as in such places where
float switches were not appropriate (due to deposit forma-
tion, turbulence, stresses and air bubbles).
Figure 1: Elixir Product Image
2
Operating Principle
A specially shaped tuning fork is kept vibrating using
piezo-electric elements. Typically, the fork vibrates at its
natural frequency. The frequency of oscillation for the tun-
ing fork changes when immersed in liquids. The change in
frequency is detected by the microprocessor leading to a
switching decision.
P
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L
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Housing Pressure Die Cast
Aluminium (IP68)
Cable Entry Gland
(Polyamide)
External LED Indication
with Infrared output (Optional)
Ø90 mm
89 mm
Vibrating Fork (SS 316L)
Extention Pipe Ø42mm
(SS 316)
Figure 2: Description of Parts
3
Features
•
Universal Power Supply: 18 - 55V DC, 90 - 265V AC
•
Low Power Consumption: less heat, long life
•
High temperature durability (H1 up to
200
◦
C)
•
Immunity to spurious external vibrations, material tur-
bulence and flow
•
Suitable for liquids with viscosity up to 10,000 cP
•
Fast switching
•
Self-diagnosis
•
Independent of material’s electrical properties
4
System Description
The elixir level detecting system consists of a micro-
controller based electronic insert with fork probe. The in-
strument comprises of an electronics SS 316 tuning fork
housed in a cast aluminum housing provided with 2 suitable
cable entries. The fork is of a special shape suitable for op-
erating in liquids of specified range of viscosities. This is
provided with either screwed mounting or flanged mounting
suitable for installation on to a container or pipeline. Piezo
ceramic elements are mounted inside the fork capsule and
potted with epoxy compound for rendering them immune to
dust, moisture and inflammable gases.
5
Applications
Elixir is suitable for the following applications and indus-
tries:
•
FMCG
•
Paint
•
Textile
•
Breweries
•
Cosmetics
•
Chemicals
•
Pesticides
•
Edible Oil
•
Sugar Powder
•
Utility Paper
•
Confectionery
•
Food Industry
•
Dairy Industry
•
Packaging Industry
•
Pharmaceutical
Industry
Sapcon Instruments Pvt.Ltd.
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