CDi-99 System
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CDi-99 System |
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  CDiComm
| CDiNet | Controller | CDiBrowser
| Outputs | Temp | DO | pH
| Wiring | Calibration | Pricing
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PDF file about this system (updated: 03/14/00) |
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| System Overview | ||
| The CDi99 logger/controller system described here has been in development since November '98, and was designed to meet the specific needs of an intensive recirculation fish farm operation in Simcoe, Ontario. The primary design goals included: | ||
 Oxygen
probe and control in every tank. There is no point in trying to run the entire farm with a handheld meter.
Sooner or later some part of the system will fail and the operator will not know about it in time. Fish will die.
Labor costs prohibit watching the tanks around the clock. Fish grow faster and better in a steady environment,
very difficult to accomplish by running around, adjusting things. Automation is the only financially-viable alternative.Ability
to record for long periods of time. The responsible grower should have records of past system performance,
right from day one. Potential problems are easier to handle if one has historical information. Correlate and learn!Ease
of use and automatic data handling. No sane person wants to export thousands of numbers to Excel©®
and almost go blind, just to produce a simple graph. So we invented our own file system. The operator can have
a graph on the screen, immediately after download. Even file naming is automatic. All graph labels are automatic;
title, units, scale limits, all automatic - no typing! Network
and deliberate redundancy. Sure, the competition can build a controller with 1000 channels. So can we. But
what happens when, for whatever reason, the controller fails? Help!! Networking several controllers provides redundancy
in the sense that if one fails, the others are still working. Much easier to tend to one part of the farm, rather
than the entire farm! |
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| In the system described here, water from up to six tanks is returned to a common area where temperature and pH
are monitored and adjusted accordingly. Oxygen control is achieved by connecting one or more saturators to each
tank. Click on graphic components below for more info. |
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| Manual vs Automatic | ||
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