Display and Alarm Systems
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System Description

Introduction
Advantages of our System
Applications
System Configuration
Features of the System Components
  1. Sensors
  2. Connection Box
  3. Signal and Power Transmission Cables
  4. Display and Alarm Box
  5. Power Supply Unit

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Introduction
EAI has recognised the need for a robust, easy-to-handle system to display the important Water Parameters in Aquaculture and other Applications.
EAI developed a very flexible system, which can be optimised for nearly every application. This makes the system a very cost-effective, reliable solution.
The system does not need an external computer.
The system provides a well arranged display of the critical water parameters, optical and acoustical alarms when parameters get out of the preset range, and relays outputs to control special equipment like Aeration systems, Dosing systems, etc.

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Advantages of our System
  1. Fulfills the needs of every day's business.
  2. Can easily be adapted to any kind of application.
  3. You only order exactly what you need.
  4. Very cost-effective, investment costs are recovered by improved results within a short time.
  5. System has a long lifetime.
  6. No special qualifications necessary for maintenance.
  7. Very low maintenance costs
  8. No special training required, to operate the system.

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Applications
  1. Fish Farms (Indoor and Outdoor) - Small, Medium and Large
  2. Shellfish Farms (Indoor and Outdoor) - Small, Medium and Large
  3. Fish Tanks - Ponds - Lakes
  4. Freshwater - Saltwater Aquaculture
  5. Aquaculture Seed
  6. Aquaculture Research
  7. Aquariums
  8. Hatcheries
  9. Livefeed farms
  10. Aquatic Plant Nurseries
  11. Algae Farms
  12. Wastewater Treatment plants
  13. Many Industrial applications
  14. Environmental Control
  15. Food and Beverage Processing

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System Configuration
The system is assembled from components of the following 5 Component Groups:
  a)  Sensors
  b)  Connection Boxes
  c)  Signal and Power Transmission Cables
  d)  Display and Alarm Box
  e)  Power Supply Unit
 
The system will be used in 3 Configurations:
1)   Sensors directly connected to the Display and Alarm Box
This needs:
  a)  One Set of Sensors
  b)  One Display and Alarm Box
  c)  One Power Supply Unit
 
2)   One Set of Sensors connected over a Distance to a Display and Alarm Box
This needs:
  a)  One Set of Sensors
  b)  One Connection Box
  c)  One Signal and Power Transmission Cable
  d)  One Display and Alarm Box
  e)  One Power Supply Unit
 
3)   A Number of N Sets of Sensors connected over various Distances to a Display and Alarm Box
This needs:
  a)  N Sets of Sensors
  b)  N Connection Boxes
  c)  N Signal and Power Transmission Cables
  d)  One Display and Alarm Box
  e)  One Power Supply Unit

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Features of the System Components
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a) Sensors:
  • Sensors for D.O., pH, Temperature, Redox and many Ions available
  • All sensors are suitable for field and industrial applications
  • Sensors can be submersed
  • Sensors have long Calibration Intervals
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b) Connection Box:
  • Robust, waterproof, ABS Box
  • Sensors connected via environmental protected Connectors
  • Transmission cables connected with Terminals and protected with waterproof Cable Glands
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c) Signal and Power Transmission Cables:
  • No special cable types required, standard low-cost cables can be used
  • Power and signals can be transmitted in the same cable, only one cable per unit required
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d) Display and Alarm Box:
  • The Display and Alarm Box is available in various versions with 1 to 4 Displays
    If more parameters have to be displayed an automatic changing cyclical display switch shows the various parameters in a sequence. The cycle time is adjustable.
  • Waterproof type, Display and Operating elements fully protected
  • Operating elements protected against unauthorised or accidental miss-adjustments
  • Easy to read LED Displays
  • In a wide range adjustable Alarm settings
  • Flashing Warning Lights for High and Low Alarms
  • Acoustical Alarm
  • Alarm output Relays for Control functions
  • Analogue Signal Outputs for all Parameters for recording purposes
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e) Power Supply Unit:
  • The Power Supply Unit provides the system components with 24 V DC power
  • The use of a low voltage avoids dangerous accidents in a wet environment
  • The Power supply unit, which can be installed in a safe area, is powered from the mains
  • Each system component is powered from a dedicated fused output. In case of a failure in one system component the other system components are not affected.
Copyright © 2004-2008 EAInstruments Ltd    Last updated: 04/09/08