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Stream Data Loggers And Diy Instructions For Protective Housings And Deployment

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Bruce Dickson
Bruce Dickson

The document discusses the use of data loggers to monitor water quality parameters like temperature and specific conductivity in streams. It describes two types of data loggers, how to build protective housings for the loggers, and how to deploy them securely in streams using stakes. Proper deployment, maintenance, and calibration of the loggers is emphasized to ensure high quality water monitoring data.

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Stream Data Loggers and DIY Instructions for Protective Housings and Deployment The following is a brief presentation on the application of data loggers for stream water quality monitoring as currently used in the Iron Furnace Trout Unlimited water quality monitoring network in southern Allegheny National Forest. Shown are two types of data loggers for monitoring specific conductance & temperature, custom built protective housings for the loggers, and how to generally deploy loggers in streams. Visit our web site for additional info: www.ironfurnacetu.net
Solinst Data Logger Conductivity Range: 0 C 80,000 ?S/cm Accuracy: 2% accuracy @ 500 C 80,000 ?S/cm Accuracy: highly variable < 500 ?S/cm Also records temperature and pressure (level)
Hobo Data Logger Conductivity Range (low setting): 0 C 1,000 ?S/cm Accuracy: 2% 0 C 1,000 ?S/cm Also records temperature & has full conductivity range @ 0 C 10,000 ?S/cm
Logger Housing Parts and Assembly PVC Pipe Cleaner PVC Pipe Cement Zip Tie Stainless Cap Adapter 1 ? PVC Adapter Cap Eye-Hook
Assembled Logger Housing Water circulation holes Painted Housing (neutral color)
Logger Housing Parts List
Installation Materials/Equipment 1/8 Cable 1/8 Ferrules Ferrule Clamp Tool Concrete Form Stake
Logger Ready for Deployment ~ 3 of 1/8 Cable 1/8 Double ferrule to form loop Zip tie secures logger in housing Single 1/8 ferrule for cable stop Predrilled concrete form stake
Logger Staked in Place
Logger Staked in Place Under Bridge After 60 Days
Logger Housing after 60 Days
Deploying Loggers Place in stream locations that have: ? Reasonable, safe access (distance from roads, avoid base of steep slopes etc.); ? Water depth to maintain submersion of logger during periods of low flow in late summer/fall; ? Locations with good water flow/mixing but not overly turbulent - riffles and runs are generally preferred; ? Substrate that a stake can be drive into (avoid bedrock areas); ? Shaded locations to avoid solar heating of housing; ? Locate loggers away from human traffic to avoid disturbance or vandalism;
Deploying Loggers Other Considerations: ? Remember that loggers may need to be removed when stream temperatures are very low during winter months when water depth and flows may be considerably higher and therefore dangerous; ? Strategically place flagging tape at your sites to allow you to find loggers and GPS logger locations; ? Download data directly in the field to a laptop or use a manufacturers remote data retrieval device; ? Sites with poor water quality require more frequent maintenance and visits as units foul more frequently; ? Use loggers with conductivity ranges appropriate (i.e., sensitivity and accuracy) to your streams.
Logger Data Quality ? To insure data integrity for these or other data loggers follow manufactures instructions for calibration of loggers; ? Solinst recommends calibration every 6 months, more frequently if water quality is very poor; ? Hobo loggers require conductivity readings to be taken with a calibrated instrument at time of deployment and when units are removed to correct data; ? IFTU has Solinst loggers calibrated at a certified lab to insure data quality; ? IFTU uses a certified lab calibration standard for correction of Hobo logger data to insure data quality .
For additional information contact: Bruce Dickson, PhD Water Quality Monitoring Coordinator Iron Furnace Trout Unlimited bcdickson95@gmail.com Phone: 814-227-9126

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Stream Data Loggers And Diy Instructions For Protective Housings And Deployment

  • 1. Stream Data Loggers and DIY Instructions for Protective Housings and Deployment The following is a brief presentation on the application of data loggers for stream water quality monitoring as currently used in the Iron Furnace Trout Unlimited water quality monitoring network in southern Allegheny National Forest. Shown are two types of data loggers for monitoring specific conductance & temperature, custom built protective housings for the loggers, and how to generally deploy loggers in streams. Visit our web site for additional info: www.ironfurnacetu.net
  • 2. Solinst Data Logger Conductivity Range: 0 C 80,000 ?S/cm Accuracy: 2% accuracy @ 500 C 80,000 ?S/cm Accuracy: highly variable < 500 ?S/cm Also records temperature and pressure (level)
  • 3. Hobo Data Logger Conductivity Range (low setting): 0 C 1,000 ?S/cm Accuracy: 2% 0 C 1,000 ?S/cm Also records temperature & has full conductivity range @ 0 C 10,000 ?S/cm
  • 4. Logger Housing Parts and Assembly PVC Pipe Cleaner PVC Pipe Cement Zip Tie Stainless Cap Adapter 1 ? PVC Adapter Cap Eye-Hook
  • 5. Assembled Logger Housing Water circulation holes Painted Housing (neutral color)
  • 7. Installation Materials/Equipment 1/8 Cable 1/8 Ferrules Ferrule Clamp Tool Concrete Form Stake
  • 8. Logger Ready for Deployment ~ 3 of 1/8 Cable 1/8 Double ferrule to form loop Zip tie secures logger in housing Single 1/8 ferrule for cable stop Predrilled concrete form stake
  • 10. Logger Staked in Place Under Bridge After 60 Days
  • 12. Deploying Loggers Place in stream locations that have: ? Reasonable, safe access (distance from roads, avoid base of steep slopes etc.); ? Water depth to maintain submersion of logger during periods of low flow in late summer/fall; ? Locations with good water flow/mixing but not overly turbulent - riffles and runs are generally preferred; ? Substrate that a stake can be drive into (avoid bedrock areas); ? Shaded locations to avoid solar heating of housing; ? Locate loggers away from human traffic to avoid disturbance or vandalism;
  • 13. Deploying Loggers Other Considerations: ? Remember that loggers may need to be removed when stream temperatures are very low during winter months when water depth and flows may be considerably higher and therefore dangerous; ? Strategically place flagging tape at your sites to allow you to find loggers and GPS logger locations; ? Download data directly in the field to a laptop or use a manufacturers remote data retrieval device; ? Sites with poor water quality require more frequent maintenance and visits as units foul more frequently; ? Use loggers with conductivity ranges appropriate (i.e., sensitivity and accuracy) to your streams.
  • 14. Logger Data Quality ? To insure data integrity for these or other data loggers follow manufactures instructions for calibration of loggers; ? Solinst recommends calibration every 6 months, more frequently if water quality is very poor; ? Hobo loggers require conductivity readings to be taken with a calibrated instrument at time of deployment and when units are removed to correct data; ? IFTU has Solinst loggers calibrated at a certified lab to insure data quality; ? IFTU uses a certified lab calibration standard for correction of Hobo logger data to insure data quality .
  • 15. For additional information contact: Bruce Dickson, PhD Water Quality Monitoring Coordinator Iron Furnace Trout Unlimited bcdickson95@gmail.com Phone: 814-227-9126