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Water Level Measurement

3 Reasons to Rent Water Monitoring Equipment from the Manufacturer

Editor’s note: This article originally appeared on the In-Situ blog in May 2015. There are several reasons you might consider renting environmental sampling equipment: maybe it just makes more sense to rent equipment for a project rather than buy it, or perhaps you want to try the product before you make the commitment. Whatever the…

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KROHNE Level Radar and TDR Promotional Offer

To celebrate Krohne’s new manufacturing capability at their Peabody, Massachusetts facility we are pleased to announce a price promotion for the newest KROHNE level devices produced there. These products can now be produced and shipped within 5 days of order receipt.

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New Approach to Collection System Assessment & Management

RedZone Robotics has a new approach to collection system assessment and management.  Using robots equipped with multiple sensors, collection system inspections can combine conventional qualitative CCTV with synchronized laser and sonar dimension information all collected several times faster than conventional CCTV trucks.  This unique full 360° quantitative view of the pipeline can help to pinpoint which lines in…

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The New In-Situ smarTroll RDO Handheld

How about a dedicated dissolved oxygen probe that you can use with your smartphone?  The new smarTROLL RDO Handheld uses In-Situ’s robust optical RDO sensor which is one of the few on the market today with EPA approval for DO, BOD, and CBOD measurement.

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Tough Challenges in Sewer Lift Station Level Measurement

Tough challenges for sewer lift station level measurement are operating in an extremely harsh environment; and reliable performance without frequent maintenance. Pump controls are dependent on accurate level sensing; so the level sensor must be designed to withstand these conditions; without the need for constant maintenance and calibration.

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Tech Tips from In-Situ, Inc.’s Tech Support

Tech Tip #1 RuggedReader Handheld PC acting slow or not responding? Think of it as a small computer that sometimes runs into errors. One way to keep it running better is to reboot it regularly like you do your PC. To do this, hold down the Power button for a few seconds until the Power…

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Water Quality Monitoring With Remote Data Access

The need for remote data access for water quality monitoring stations is on the rise. Not only is there a significant cost involved in sending personnel into the field but there are also safety concerns in working in, over, and near the water. In addition, staff shortages can result in “stretching” out the time between…

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Digital Cameras for Remote Environmental Monitoring

Digital cameras for remote environmental monitoring stations is an effective way to monitor conditions real time; without sending personnel out in the field. Environmental professionals are challenged by the need to monitor multiple locations, with limited staff; coupled with the soaring cost of employees and travel. Advances in digital cameras include: Very low power, high…

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Monitoring Water Level At Remote Locations

If you need to monitor water level and rainfall at remote locations it can be done for under $2500 with the In-Situ, Inc. TROLL Link 101 and LevelTROLL.  The TROLL Link 101 is a GSM cell modem based system that can transmit data from LevelTROLLs, AquaTROLLs, and TROLL 9500’s to a secure data center hosted…

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Real-Time Monitoring of Water and DNAPL Levels Using Level TROLL 500 Instruments

In-Situ, Inc. Technical Note October 2011 A dense non-aqueous phase liquid, or DNAPL, is a substance that is denser than water and only slightly soluble. Because of these properties, DNAPLs introduced into the environment generally sink below the water table and may migrate down through an aquifer. This can pose risks to the environment and…

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Teledyne RDI RiverRay ADCP Performance Upgrade Package

Teledyne RDI is pleased to announce the availability of its new Performance Upgrade Package for the highly popular RiverRay ADCP system. RiverRay revolutionized the measurement of flow and discharge in rivers and streams with its flexible design and adaptive technology.  Now, the RiverRay is taken to the next level with the new Performance Package Upgrade.

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Parshall Flumes – Free vs. Submerged Flow

As often as we use Parshall flumes for open channel flow measurement, it is important to understand “free versus submerged flow” conditions; as it greatly impacts the accuracy of the installation…or the lack thereof. While any primary device could be affected by submerged flow conditions, there isn’t much data to be found on the topic.…

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Aquatic Sensor Workgroup Guidance Documents

The Aquatic Sensor Workgroup is a public-private partnership of water-quality monitoring agencies, industry, and   academia whose mission is to ensure that water-quality data collected by sensors are of known and documented quality.  They have published several guidance documents that benefit anyone using or preparing to use water quality monitoring sensors for surface water or groundwater monitoring applications.

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In-Situ, Inc. Extra Large Desiccant for TROLL Instruments

In-Situ, Inc. releases an Extra Large Desiccant for their LevelTROLL 500/700, AquaTROLL 200, and TROLL 9500 instruments.  Properly maintaining the desiccant on a vented pressure transducer is essential to its operation.  A vented pressure transducer must maintain an open pathway to the atmosphere from the backside of the strain gauge in order to cancel out the effects of…

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In-Situ, Inc. RDO Sensor Recieves EPA Approval for NPDES Permit Holders for DO, BOD, and CBOD

On May 18, 2012, three In-Situ RDO methods received nationwide U.S. Environmental Protection Agency (EPA) approval for optical dissolved oxygen measurement.  The In-Situ RDO methods are included in the final Methods Update Rule (http://water.epa.gov/scitech/methods/cwa/update_index.cfm).  National Pollution Discharge and Elimination System (NPDES) permit holders may begin monitoring with In-Situ RDO methods.  These optical (luminescent) methods can…

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Comparing Absolute and Gauged Pressure Sensors

This technical note describes the difference between absolute and gauged pressure sensors and explains the proper use of each type of sensor in different applications for In-Situ, Inc. LevelTROLL and AquaTROLL instruments. Figure 1 provides a general illustration of the forces measured by a pressure sensor’s internal strain gauge.

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