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At Pine we stock a variety of water level meters perfect for measuring boreholes, tanks, rivers, streams, lakes and reservoirs for water level, pressure and temperature changes. We offer the highest quality meters from reliable vendors as Solinst, Heron, and Geotech.  All of our instruments are both portable, rugged and are offered in multiple tape lengths to perform even the toughest jobs. Please note that oil/water interface probes are also available.

To find out more, please click on a product from the list.  At Pine, we specialize in delivering total equipment solutions and providing technical advice on what to rent, and how to use it; the availability of our rental fleet is second to none, and all our equipment is always tested and delivered ready to use.


Global Water WL-15X Water Level Logger
Global Water WL-15X Water Level Logger

Global Water's WL15X Water Level Logger provides a datalogger with a submersible pressure transducer for remote monitoring and recording of well depth measurements and water pressure data. This highly reliable and accurate water level recorder records 24,400 readings and is programmable from one reading per second to one reading per day. Ranges of 0-3', 0-15', 0-30', 0-60', 0-120' and 0-250' are available. A 25' cable is standard, and optional cable lengths are available up to 500'.

The Water Level Recorder's datalogger is housed in a weather-resistant cylindrical enclosure that can slip inside a 2-inch pipe. The data recorder is easily adapted with standard hardware for well head mounting or other installations. The datalogger enclosure also houses an easily replaceable 9 VDC battery, which powers the Water Level Logger and level sensor for one year. Purchase of the WL15X includes Windows-based datalogging software, which allows easy upload of recorded data to standard spreadsheet programs on a PC computer.

The Water Level Logger's level sensor is fully encapsulated with marine-grade epoxy so that moisture can never leak in or work its way down the vent tube to cause drift or level sensor failure (as is the case with other pressure sensors). The submersible pressure transducer uses a unique, highly flexible silicon diaphragm to interface between water and the sensing element. This silicon diaphragm protects the level sensor's electronics from moisture and provides a submersible water level transducer with exceptional linearity and very low hysteresis. The design of Global Water's water level sensor eliminates the issues associated with metal foil diaphragms, which tend to crinkle and stretch out over time causing drift, linearity, and hysteresis problems. The water level sensor is also protected by a stainless steel micro-screen cap, which makes fouling with silt, mud, or sludge virtually impossible.

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Global Water WL400 Water Level Sensor
Global Water WL400 Water Level Sensor

Global Water's WL400 Water Level Sensor provides highly accurate water level measurement for a wide variety of applications, including those in severe environments. The submersible pressure transducers have a dynamic temperature compensation system, enabling high accuracy measurements over a wide temperature range. The water level sensor is easily adapted to all dataloggers, telemetry, monitoring equipment, and displays.

Each of the water level sensors consist of a solid state submersible pressure transducer encapsulated in a stainless steel 3/4'' diameter housing. The water level sensor has a molded-on waterproof cable and a two-wire 4-20 mA high level output for connection to a monitoring device. A 25' cable is standard, and optional cable lengths are available up to 500'.

The Water Level Sensor's submersible pressure transducer is fully encapsulated with marine-grade epoxy so that moisture can never leak in or work its way down the vent tube to cause drift or level sensor failure (as is the case with other pressure sensors). The water level sensor uses a unique, highly flexible silicon diaphragm to interface between water and the sensing element. This silicon diaphragm protects the water level sensor's electronics from moisture and provides each sensor with exceptional linearity and very low hysteresis. The design of the submersible pressure transducers eliminates the issues associated with metal foil diaphragms, which tend to crinkle and stretch out over time causing drift, linearity, and hysteresis problems. The water level sensor is also protected by a stainless steel micro-screen cap, which makes fouling with silt, mud, or sludge virtually impossible.

Pressure transducer level ranges of 0-3', 0-15', 0-30', 0-60', 0-120' and 0-250' are available. The 0-3' low-level range is ideal for measuring shallow flows or small water level changes like those encountered in sewers, storm drains, weirs, and flumes. The 0-3' water monitoring sensor accurately measures small changes in water, even when the water's depth is only a few inches deep. Other metal foil-type water level sensors typically have serious problems at low-level ranges because of sensor crinkling, stretching, and drifting.

Each submersible pressure transducer has a two-wire 4-20 mA output signal that is linear with water depth. From 10 to 36 VDC is required to operate the water level sensor, so the level sensors can be operated from common 12 VDC battery systems. The 4-20 mA signal can run up to 3,000' from the submersible pressure transducer to the logging device. Common twisted pair or electrical extension cord wire may be spliced to the vented cable once the cable is out of the water. The 4-20 mA signal may be converted to 0.5 to 2.5 VDC by dropping the current signal across a 125 ohm resistor.

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HERON DIPPER LOGGER 100FT
HERON DIPPER LOGGER 100FT

The dipper-log by Heron Instruments is an economical, single channel data logger for long term monitoring of groundwater levels in wells, boreholes and open bodies of water. The dipper-log’s compact size allows it to be used in wells down to ¾ inch (20mm) diameter. The dipper-log uses an absolute (total pressure) system. The system does not require vented cable which is subject to condensation and freezing. The dipper log automatically takes barometrically compensated readings for short term tests.

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Heron Little Dipper - Water Level Meter
Heron Little Dipper - Water Level Meter

Overview

A small low cost water level meter with all the quality features of the larger units. The fully submersible standard 5/8 inch (16 mm) dia probe makes it an ideal instrument for narrow piezometers, direct push equipment and standpipes. The compact size and light weight of the little dipper is an advantage for carry in sites where portability is a concern.

Features

  • Tape length 75 ft (22m)
  • Light weight & portable
  • Easy to read accurate (ASME Standard) heavy duty polyethylene jacketed tape with stainless steel conductors.
  • Fully submersible standard 5/8 inch dia.(16 mm) stainless steel and FEP probe.
  • Modular electronic panel with battery draw, audible signal and light, sensitivity control and circuit test button.Environmentally protected encapsulated circuitry for durability.
  • Carry bag included
  • *3 year limited warranty.
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Heron Skinny Dipper - Water Level Meter
Heron Skinny Dipper - Water Level Meter

Overview

This rugged unit is intended for use in narrow tubes and piezometers. The tape on the skinny dipper is a narrow 0.24 inch x 0.133 inch (6.2 mm x 3.4 mm). The probe is 0.25 inch (6.25mm) diameter stainless steel. This thin section enables the skinny dipper to be used in tubes as narrow as 0.375 inch (9.5mm) internal diameter.

The high strength tape has two embedded stainless steel conductors. The graduations are printed under the polyethylene coating in feet x 0.01 ft (not available in metric) giving precision and durability.

The Skinny Dipper includes a fully potted, fully removable electronic module. The super bright red LED and buzzer are housed inside this water tight module. The sensitivity dial on the Skinny dipper allows false signals from cascading water to be tuned out enabling the most accurate readings possible.

Features/Advantages over coaxial units:

  • Permanently marked graduations every ft and 1/100ft (not available in metric). No more stick on numbers coming off in the well.
  • Precise, high strength and less stretch to allow for more precise readings.
  • Easier to withdraw from the piezometer.
  • Corrosion proof.
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Heron Water Level Meter Dipper-T
Heron Water Level Meter Dipper-T

The dipper-T Water Level Meter materials are top quality and one of the most reliable water level meters available using the best available heavy duty tape (tested by the manufacturer to ensure compliance with appropriate ASME standards) with a breaking load of over 300 pounds (150 kilos). The tape is made from stretch resistant, high tensile steel.

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In-Situ Aqua TROLL 200 Data Logger
In-Situ Aqua TROLL 200 Data Logger

The Aqua TROLL 200 Data Logger measures and records water level, pressure, conductivity, and temperature. A unique conductivity cell design allows for a wide, accurate measurement range in a narrow diameter instrument. Titanium construction resists corrosion, ideal for coastal, remediation and mine water monitoring projects.

Available in pressure ranges up to 1153 ft (351 m) for vented configurations and 1120 ft (341 m) for non-vented configurations. Get easy data access via telemetry or direct-read Rugged Cable (sold separately).

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In-Situ Aqua TROLL 600 Multiparameter Sonde
In-Situ Aqua TROLL 600 Multiparameter Sonde

The Aqua TROLL 600 is a customizable, powerful multiparameter sonde. It combines industry-leading water quality sensors with revolutionary smartphone mobility, allowing you the ability to collect and analyze data using the VuSitu Mobile App on your Android™ device. Rugged in groundwater and corrosion-resistant in surface water, the Aqua TROLL 600 delivers accurate data in an easy-to-use, customizable instrument. Features include a quick-read LCD status screen for visual indicators of overall readiness, battery life, internal log, and sensor status, as well as integrated Bluetooth® connection for wireless data access, and an onboard micro SD card for data backup and download.

Low power consumption with 9+ months of battery life, and advanced antifouling to protect all sensors, make it perfect for challenging environments and long-term deployments in fresh and salt water applications. The Aqua TROLL 600 features self-compensating turbidity, optical RDO, and level, and comes in vented and non-vented options. It is the only multiparameter sonde to have a sub-2 inch passive and active antifouling system for all sensors, including conductivity. Every detail has been engineered for maximum accuracy and minimum hassle. This flexible, data-ready sonde easily integrates with telemetry systems and our new HydroVu Data Services platform for real-time feedback on all your remote water monitoring sites. Access to your data has never been this easy.

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In-Situ Level Troll 700
In-Situ Level Troll 700

The Level TROLL 700 is the next breakthrough for professional water level monitoring applications single or multi-step aquifer testing, precision river gauging, tidal infuence studies, wave characterization, geothermal research, storm-event monitoring and more!

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In-Situ Minitroll Pro 15
In-Situ Minitroll Pro 15

The miniTROLL Level - Temperature - Data Logging unit is the leading instrument for water monitoring. Powerful, dependable, versatile, easy-to-use and small. Just place it in the water and have it collect data. The miniTROLL can be found monitoring water levels in thousands of rivers, lakes and wells around the world and is counted on by professionals and governmental agenices to provide highly accurate data. With up to 1MB of non-volatile memory (220,000 readings) and the smallest diameter in the industry, the miniTROLL is ideal for both long and short-term groundwater monitoring applications.

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In-Situ smarTROLL Multiparameter Handheld Water Quality Meter
In-Situ smarTROLL Multiparameter Handheld Water Quality Meter

The Future of Water Quality Monitoring
The smarTROLL Multiparameter (MP) Handheld combines industry-leading water quality sensors with revolutionary smartphone mobility. The intuitive iSitu® Application eliminates training time and runs on your iPhone®, iPod touch®, or iPad® device.

Simply connect the smarTROLL MP Handheld to a battery pack, launch the iSitu App, and start reading results. No warm-up time or tedious setup. The iSitu App guides you through spot checks, calibrations, and data management.

 

Measure Up to 14 Parameters

  • Chemical parameters: Dissolved oxygen, pH, ORP, conductivity (actual or specific), salinity, total dissolved solids, resistivity, and density
  • Physical parameters: Air and water temperature, barometric pressure, water level, and water pressure

Transport the smarTROLL Anywhere

  • Tired of transporting heavy or awkward equipment to the field? Now, all you need is your smartphone and the smarTROLL MP Handheld.
  • Eliminate expensive handheld meters, bulky multiparameter probes, and test kits.

Move Your Office to the Field

  • Use innovative smartphone technology for seamless work flow between office and site.
  • Instantly collaborate with colleagues and clients by using your smartphone to email data.
  • Work from anywhere, anytime with wired or wireless connectivity.
  • Use your smartphone to order supplies from the In-Situ e-store.
  • Access mobile help on your smartphone or call Technical Support for application tips … anytime.

Streamline Data Management

  • Consolidate all site information on your smartphone with the iSitu App.
  • Quickly find and recognize each of your sites by tagging sites with a photo and GPS coordinates.
  • Instantly review data with colleagues by sending them a snapshot of real-time results.
  • Log data to your smartphone. When it’s convenient, download results to a standard file format (*.csv).
  • Download logs manually through iTunes®. Share data with all mobile devices on your iCloud account. Email data logs from the field

Increase Productivity

  • Quickly set up the handheld—Simply connect the battery pack to the probe, launch the iSitu App on your smartphone, and start reading results.
  • Calibrations can last for months.
  • Eliminate training time—The intuitive iSitu App guides you through site setup, water quality checks, and data management.
  • Get instant results—No warm-up or stabilization time required. Sensors are calibrated with NIST®-traceable standards (where applicable).

Reduce Maintenance & Eliminate Errors

  • Use the robust smarTROLL System for demanding field applications.
  • Eliminate manual steps—No more transcription errors. Plus, smart sensors automatically recognize calibration solutions and store calibration data in the sensors.
  • Get accurate DO results—Internal logic automatically compensates for barometric pressure and salinity.
  • Stay current with automatic iSitu App updates.
  • Understand sensor performance with automatic sensor diagnostics, data quality indicators, calibration reports, and RDO® Fast Cap replacement reminder.

 

 

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Solinst 101 200ft Water Level Meter
Solinst 101 200ft Water Level Meter

The Model 101 Water Level Meter uses a choice of probe designs, attached to a permanently marked polyethylene tape, fitted on a well-balanced reel. It is powered by a standard 9 volt battery housed in an easy-access battery drawer. The conductors embedded within the tape each have seven strands of stainless steel for strength and flexibility. The probe incorporates an insulating gap between electrodes. When contact is made with water, the circuit is completed, activating a loud buzzer and a light. The water level is then determined by taking a reading directly from the tape at the top of the well casing or borehole.

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Solinst 3001 Leveloader Gold
Solinst 3001 Leveloader Gold

The Leveloader Gold is a field-ready, backwards compatible data transfer unit designed for use with all versions of the Solinst Levelogger®, Rainlogger and Barologger. It is used to download, store and transfer multiple data files, using 8 Mb of non-volatile FLASH memory.

The Leveloader™ has a rugged, water-resistant, ergonomic exterior and stores up to 1,390,000 LT readings, 930,000 LTC readings or 34 full Levelogger downloads. Stored data can be scrolled through before transfer to a PC. The Leveloader can also be used to display data in real-time, which is ideally suited for conducting conventional pumping tests.

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Solinst 3001 Levelogger Gold
Solinst 3001 Levelogger Gold

The Levelogger Gold is a water level and temperature recording device. It combines a datalogger, 10-year battery, pressure transducer and temperature sensor, in a small, minimal maintenance, 7/8" x 6" (22 mm x 154 mm) stainless steel housing. The sealed Faraday cage design greatly simplifies maintenance and provides protection against electrical spikes caused by lightning. A Zirconium Nitride coating resists corrosion.

The Levelogger Gold offers high resolution and reliability with an accuracy of 0.05%. The Levelogger Gold has excellent transducer, temperature and clock accuracies. Altitude, water density, temperature and barometric compensations also add to the accuracy and instrument stability.

High accuracy, long-term stability and an internal battery that lasts for 10 years when reading every minute, make Leveloggers the ideal devices for recording water levels. A Barologger provides the easiest and most accurate method of barometric compensation.

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Solinst 3001 Water Level Logger/Meter
Solinst 3001 Water Level Logger/Meter

The Levelogger Edge is a self contained water level datalogger, using infra-red data transfer powered by a 10 year lithium battery, offering the flexibility of installing by use of a Direct Read Cable, wireline or Kevlar cord. The Levelogger Edge has a memory capacity of 40,000 temperature and water level data points, or up to 120,000 using the new compression algorithm in linear sampling mode.

New Levelogger Software Version 4.0, written to support the new Levelogger Edge, Levelogger Junior, LTC Levelogger Junior, Rainlogger, Leveloader and is backwards compatible to support the Levelogger Gold series. Version 4.0 offers many new features, including the ability to barometrically compensate multiple Levelogger data files simultaneously.

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Solinst DataGrabber (for use with Model 3001/3002)
Solinst DataGrabber (for use with Model 3001/3002)

The Model 3001 DataGrabber for Leveloggers provides an inexpensive, and very portable option for Levelogger users to download data directly to a USB flash drive key.

How the DataGrabber Works

The DataGrabber connects to a Levelogger’s Direct Read Cable; alternatively, a Direct Read to Optical Adaptor allows you to connect it directly to a Levelogger’s optical end. The USB flash drive key is plugged into the socket on the front of the DataGrabber.  A push-button on the DataGrabber starts the downloading process. All of the data in the Levelogger’s memory is transferred to the USB device. The DataGrabber comes with a 512 Mb USB flash drive key; it is also compatible with most other USB flash drives. The Levelogger is not interrupted if it is still logging.  The data in the Levelogger memory is not erased. A light changes colour to indicate when the DataGrabber is properly connected, when the data transfer is taking place, and when the data has been successfully downloaded. The DataGrabber uses one 9 volt alkaline or lithium battery that is easy to replace when required.

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Solinst Dataloggers - Levelogger Model 3001 Junior
Solinst Dataloggers - Levelogger Model 3001 Junior

The Levelogger® Junior is the newest addition to the Levelogger Family. The Levelogger Junior provides an inexpensive alternative for measuring groundwater and surface water levels. It combines a data logger, temperature sensor, pressure transducer, and 5-year battery, in a small, maintenance free, waterproof stainless steel housing.

The Levelogger Junior features a non-volatile memory, with a capacity of 32,000 sets of temperature and water level data points. Readings are linear at a user-defined interval between 0.5 seconds to 99 hours. Accuracy is 0.1% FS, with a lifetime factory calibration.

If greater accuracy, sampling options, or ranges are required, the Solinst Levelogger Gold has the functionality to suit your application. (For more details, see Model 3001 Data Sheet.)

Compatible with Levelogger Gold software and accessories, the Levelogger Junior is also SDI-12 compatible, can communicate using a Leveloader Gold data transfer unit, and is able to integrate into Solinst Telemetry Systems.

Features

  • Low cost
  • 5 year battery life
  • 32,000 data points
  • Accuracy of 0.1% FS
  • Real Time View
  • Compatible with Levelogger Gold Series software and accessories

Applications

  • Pump and slug tests
  • Reservoir and stormwater runoff management
  • Watershed and drainage basin monitoring
  • Stream gauging, lake and wetland monitoring
  • Tank level measurement
  • Monitoring water levels in wells and surface water
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Solinst Dataloggers - Rainlogger Model 3002
Solinst Dataloggers - Rainlogger Model 3002

The Rainlogger is a data logger designed to count the tips of a standard tipping-bucket rain gauge with a reed switch output. Compact and waterproof, this durable field unit offers long-term reliability with a battery that lasts up to 10 years.

The rainfall level per user-defined sampling period, and a fiveminute maximum rainfall are logged in non-volatile memory, which holds up to 40,000 sets of readings. Linear sampling can be set from 5 minutes to 99 hours.

Advantages

  • Add rainfall data to your Levelogger network
  • Compatible with Solinst Telemetry Systems
  • Memory up to 40,000 time stamped readings
  • 10 year battery
  • Waterproof, low maintenance design
  • Designed to be used with most tipping buckets

Applications

  • Measuring local precipitation
  • Determining peak rainfall events
  • Stormwater management
  • Remote monitoring of watersheds
  • Ideal for correlating precipitation events to:
    • Groundwater and surface water data
    • Watershed and drainage basin studies
    • Agricultural and forestry studies
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Solinst Discrete Interval Sampler Model 425
Solinst Discrete Interval Sampler Model 425

Discrete interval sampling is ideal for obtaining truly representative water samples from below floating product layers (LNAPL) and for obtaining samples of product itself (LNAPL and DNAPL).

It is also used to profile open bodies of water, open boreholes and screened wells, and to collect samples from distinct levels or points of inflow.

There is negligible disturbance as can be caused by pumping and purging. Mixing of water from different levels in the well is minimized.

Purging and disposal of purged water can be avoided. Sampling directly from a specific depth results in the collection of water which is most representative of the groundwater outside of the well at that depth.

Discrete interval sampler

The Solinst Model 425 is a stainless steel sampler, with LDPE tubing mounted on the convenient Solinst reel. The reel has a pressure attachment for the high pressure hand pump, and a pressure/vent switch which is used to apply and release the pressure on the sampler. A sample release device is included with each Discrete Interval Sampler.

The sampler is pressurized using a high pressure hand pump before being lowered into the well to prevent water flowing into the sampler on the way down the well. Once the desired depth is reached, the pressure is released and hydrostatic pressure fills the sampler with water directly from the sampling zone. A floating checkball inside the 1.66” sampler prevents water from entering the tubing, thus avoiding the need to decontaminate the tubing.

When the sampler is filled, it can be repressurized and raised to the surface. The sample is decanted using the sample release device, which regulates flow and minimizes degassing of the sample.

The sampler is ideal for groundwater sampling from below an oil/product layer on the surface of the water, as it allows a sample to be obtained which is untouched by the oil. The sampler is easily disassembled for decontamination.

Applications
  • Obtaining a representative groundwater sample from below oil/product layers
  • Discrete interval sampling in lakes, rivers and wells
  • Chemical profiling of wells
  • Sampling at points of inflow to well
  • LNAPL and DNAPL sampling
Voc sampling

Discrete interval samplers (DIS) are excellent for VOC sampling. There is no mixing with water from different levels in the well. The sample does not travel through a long length of tubing, risking loss of volatile organics. The sample has minimal contact with air.

For the most accurate VOC results, the Model 425T Transportable DIS can be used. It retains the volatiles at down-hole conditions with zero headspace during retrieval and transport to the laboratory.

Advantages
  • High quality samples
  • Sample has not been pumped through tubing
  • No mixing of water from different levels
  • Minimal disturbance of the water
  • Easy disassembly for decontamination
  • Avoids purging and disposal of purge water
  • Easy operation and transportation
Materials

Samplers are constructed of stainless steel with Viton® o-rings,FEP and polypropylene check balls.

Tubing most commonly used is low density polyethylene (LDPE), however, FEP or FEP-lined polyethylene tubing is also available. Depth markers may be ordered for the tubing in either feet or meters, as an optional extra.

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Solinst Levelogger App for Android and IOS (for use with Model 3001/3002)
Solinst Levelogger App for Android and IOS (for use with Model 3001/3002)

Solinst Levelogger App for Android™

The Solinst Levelogger App is designed to communicate with Solinst dataloggers via the Bluetooth® enabled Levelogger App Interface. The app is available as a free download on Google Play™ for your smart device running Android 4.4, or later.

To connect dataloggers to the app, use the Levelogger App Interface; a simple portable hardware connection to the top of your datalogger’s Direct Read Cable or Direct Read to Optical Adaptor. Your Android smart device pairs with the Levelogger App Interface using short-range Bluetooth wireless technology, allowing communication with your datalogger. 

Increased Productivity and Efficiency

The Solinst Levelogger App is well organized and very intuitive, making it easy to use. The app provides all major programming options available with the Solinst Levelogger PC Software, but without the need to bring a laptop to the field. Settings include very convenient scheduled sampling and future start options.  With a datalogger connected, the Solinst Levelogger App will provide information about the datalogger’s status, battery level, serial number, and location. You can save up to 10 program settings that can be applied to Leveloggers. This can help keep Levelogger sampling regimes consistent across a project. The app allows you to check real-time readings from the connected datalogger, as well as view logged readings in a graph or database format. The data can be downloaded to your smart device, or shared immediately via e-mail. Data files can also be exported later to your office computer, and compensated using the Data Wizard in the Levelogger PC Software.

Levelogger App Interface

The App Interface for the Levelogger Series uses Bluetooth® wireless technology to connect a Solinst datalogger to your Android™ smartphone or tablet. Once connected, you can program the datalogger, or view and download data using the Solinst Levelogger App.

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Solinst Model 102 Water Level Meter
Solinst Model 102 Water Level Meter

The Solinst Model 102 Water Level Meter has been designed for measuring groundwater levels, especially in small diameter tubes and piezometers. The cable has a heavy duty jacket and stainless steel inner conductor for strength.

For situations where highly accurate measurements or speed of reading is more important the Model 101 Flat Tape Water Level Meter is also available.

Operating Principles

The Model 102 Water Level Meter uses a 9V battery and a small diameter probe on narrow coaxial cable.

When the probe enters water the electrical circuit is completed, sending a signal back to the reel where a light and clearly audible buzzer are activated.

The water level is then determined by reading the cable at the top of the borehole, casing or tube and by accounting for the distance from the point of measurement to the nearest marking on the cable.

Features

  • Narrow - 1/4'' (6 mm) probe excellent for use in 3/8'' ID (10 mm) flexible tubing
  • Low Cost - Fewer markings allow a lower cost. For closer markings see Model 101.
  • Long Life
    • - Rugged, free-standing reel
    • - Strong, flexible coaxial cable
    • - Replacement probes, cables and parts
  • Optional - Carrying bag with shoulder strap
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Solinst Model 107 TLC Meter
Solinst Model 107 TLC Meter

The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. It displays accurate measurements of conductivity and temperature on a convenient LCD display that rotates for ease of reading.

Water level and probe depth measurements are read off the accurate Solinst flat-tape marked every 1/100 ft or each millimeter.

Conductivity Made Easy
  • Accuracy is to the greater of 30
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VanEssen Baro-Diver
VanEssen Baro-Diver

To ensure that you accurately capture changes in water levels, you must compensate for atmospheric pressure. To make adjustment easy, use one specially designed and reasonably priced Baro-Diver per site to record barometric pressure.

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VanEssen Cera-Diver
VanEssen Cera-Diver

The ceramic Cera-Diver tool is designed specifically for monitoring groundwater in potentially corrosive conditions, such as brackish water and seawater.Model

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VanEssen CTD-Diver
VanEssen CTD-Diver

The corrosion-resistant CTD-Diver measures conductivity, temperate and water levels making it ideal for long-term monitoring in saline environments.

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VanEssen Micro-Diver
VanEssen Micro-Diver

The Micro-Diver is the most compact groundwater datalogger in its class and can fit into virtually any monitoring well to provide reliable measurements of groundwater levels and temperature.Schlumberger 

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VanEssen Mini-Diver
VanEssen Mini-Diver

Ideal for long-term monitoring, the cost-effective Mini-Diver provides accurate measurements of groundwater levels and temperature.

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WL600 Sonic Water Level Meter
WL600 Sonic Water Level Meter

Polluted Well Level Meter & Depth Measuring Monitor

Global Water's WL600 Sonic Water Level Meter is a self-contained, battery operated meter that uses sound waves to measure well water level.  Fast, accurate measurements are possible in the field or anywhere, without the use of down-hole instrumentation.  The water level meter is lightweight, compact, versatile, and easy to operate.

The water level meter allows you to measure crooked wells, wells with cascading water, partially cased rock wells, wells with submersible pumps, capped or uncapped wells, wells with pipes and wires inside, in fact you can even measure the lenght of coiled pipe with the water level meter.  As long as the obstructions take up no more than half of the bore area the meter will not suffer any loss of accuracy.  The sonic water level meter should only be used on wells under 10 inches in diameter as the accuracy decreases with larger diameter wells.
 

Operation

The WL600 Sonic Water Level Meter is simple to operate.  Select either the NORMAL (10-500 feet) or DEEP (up to 1,200 feet) setting on the DEPTH switch.  Then, to measure a capped well, simply insert the duct into the 5/8 inch wide access port and push the power-on switch.  In a few seconds the water level will appear on the digital display.  In the NORMAL setting, the sonic water level meter stays activated for 5 seconds or 5 pings.  Using the DEEP mode, the water level meter emits 4 pings in 16 seconds.  For more measuring time, hold the switch down as long as necessary.

For uncapped wells, use the provided cover plate, which slips onto the measuring duct and provides a seal for up to 6-inch diameter casings.  Cover plates for larger diameters can be easily fabricated from plastic or metal sheet.
 

Temperature Control

Obtaining an accurate measurement with the sonic water level meter requires that the temperature setting on the meter be equal to the average air temperature inside the well casing.  The temperature setting corrects for the variation of the velocity of sound with the air temperature in the well bore.  The temperature toggle switch adjusts the temperature setting for the variation of sound velocity in the well casing.  The value set shows on the display and is retained until changed.

The correct temperature setting can be determined by using the TEMPERATURE MAP TABLE provided with the water level meter for the state where the meter will be used (temperature settings are provided for all states in the United States).  Alternatively, the reverse side of the map table has a LOOK-UP TABLE giving the setting if the well water and average monthly surface temperatures are known.

Please note: The outside or ambient air temperature does not affect the water level meter operation, provided the meter and its components remain within the operating temperature range.

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WL650 Sonic Water Level Meter
WL650 Sonic Water Level Meter

Sonic Water Level Meter Product Description

Global Water's WL650 Sonic Water Level Meter is a self-contained, battery operated meter that uses sound waves to measure well water level.  Fast, accurate measurements are possible in the field or anywhere without the use of down-hole water level meters.  The Sonic Water Level Meters are lightweight, compact, versatile, and easy to operate.

The water level meter allows you to measure crooked wells, wells with cascading water, partially cased rock wells, wells with submersible pumps, capped or uncapped wells, wells with pipes and wires inside, in fact you can even measure the length of coiled pipe with the water level meter.  As long as the obstructions take up no more than half of the bore area the meter will not suffer any loss of accuracy.  The sonic water level meter should only be used on wells under 10 inches in diameter as the accuracy decreases with larger diameter wells.

Sonic Water Level Meter Operation

The WL650 Sonic Water Level Meter is simple to operate.  Select either the NORMAL (10-500 feet) or DEEP (200 to 1,200 feet) setting on the DEPTH switch.  Then, to measure a capped well, simply insert the duct into the 5/8 inch wide access port and push the power-on switch.  In a few seconds the water level will appear on the water level meter's digital display.  In the NORMAL setting, the sonic water level meter stays activated for 5 seconds or 5 pings.  Using the DEEP mode, the water level meter emits 4 pings in 16 seconds.  For more measuring time, hold the sonic water level meter's switch down as long as necessary.

 

Ignore distance feature
The factory distance default values for the sonic water level meter are 10 ft ( 3 meters) in Normal mode and 200 ft (60 meters) in Deep mode.  If problems occur due to reflections from liners that don't come all the way to the top of the casing or unwanted signal returns from such things as pitless adaptors and such that interfere with getting a proper reading the water level meter's default values can be increased so that returns within that distance are ignored.  Also, if you are making draw-down measurements that require the use of the sonic water level meter's deep mode but you wish to be able to measure to less than 200 ft (60 meters) you can reduce the minimum distance accordingly so that you don't have to switch modes during the test.

 

For uncapped wells, use the provided cover plate, which slips onto the measuring duct and provides a seal for up to 6-inch diameter casings.  Cover plates for larger diameters can be easily fabricated from plastic or metal sheet.

 

Gain/Sensitivity - ''Which Gain Setting to Use, Fixed or Variable?''
The Variable gain mode provides, in effect, a rising gain or sensitivity with time.  This method gives greater weight to return signals that occur later in the measurement cycle and is beneficial on deeper wells where the return signal is more attenuated.  This also makes the units less susceptible to unwanted returns from various surfaces in the well casing that might interfere with a proper measurement.

 

The Variable gain mode is somewhat more susceptible to interference from pump noise or other sources of high ambient noise.  Also, in some specific configurations it is possible for the unit to favor a secondary return over the primary one and give a reading that is twice the actual water level.

 

The Fixed mode is less susceptible to interference from ambient noise and the secondary return problem.  This mode can be used to advantage in such cases.  Some sensitivity is sacrificed so the unit might not read the deepest water levels in this mode.

 

Temperature Control
Obtaining an accurate measurement with the sonic water level meter requires that the temperature setting on the meter be equal to the average air temperature inside the well casing.  The temperature setting corrects for the variation of the velocity of sound with the air temperature in the well bore.  The sonic water level meter's temperature toggle switch adjusts the temperature setting for the variation of sound velocity in the well casing.  The value set shows on the display and is retained until changed.

 

The correct temperature setting can be determined by using the TEMPERATURE MAP TABLE provided with the water level meter for the state where the meter will be used (temperature settings are provided for all states in the United States).  Alternatively, the reverse side of the map table has a LOOK-UP TABLE giving the setting if the well water and average monthly surface temperatures are known.

Please note: The outside or ambient air temperature does not affect the water level meter operation, provided the meter and its components remain within the operating temperature range.

 

Sonic Water Level Meter Specifications

Measurement range: Normal 10-500 ft (3-152 m), Deep 200-1200 ft (61-366 m)
Display resolution: 0.1 ft
Measurement accuracy:

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