Monitoring Equipment
We can supply a wide range of water quality monitoring, logging and control equipment. The table below gives a guide to the type of equipment that's right for you.
|
|
Hand Held No Logging |
Hand Held Manual Logging |
Portable Logger |
Fixed Control |
Fix Control & Logging |
|
Occasional |
√ √ √ |
√ √ √ |
√ √ |
X |
X |
|
Regular Readings for management at multiple points |
√ |
√ √ √ |
√ √ √ |
X |
√ √ |
|
Control of equipment (eg. oxygen injection, pH dosing) |
X |
X |
X |
√ √ √ |
√ √ |
|
Control of equipment plus constant recording of parameters |
X |
X |
X |
X |
√ √ √ |
| Q - Why bother with logging? A - very few fish farms have someone constantly on site, who has the time to keep a constant heck on oxygen levels, and other parameters. Many growth or health problems are caused by poor water quality occurring at a particular time of day. Logging enables the manager to check that conditions are right for his fish - 24 hours a day - not just in the hours that he is working. Logging also enables a manager to look back an analyse when for example a certain batch of fish has performed badly. Q - How often should I take readings? A - It is very easy, once you have the capabilities to record all sorts of water quality data, to take hundreds - if not thousands - of readings. This can result in nothing actually being done with the data, as the amounts of it are so overwhelming. First you must decide what you are recording for ....... eg. if you are recording, so that you can look back and compare water quality, to how a batch of fish fared, daily readings are probably sufficient, with additional readings taken whenever problems are suspected. Many water quality parameters (including oxygen, ammonia pH etc.) vary throughout the day due to feeding patterns and incoming water quality. You might wish to take readings every couple of hours, for short periods, to find when the water quality is poorest, and then make sure that daily readings are always taken during this period. |
