Groundwater Level Measurement & Logging
Suppliers of Solinst, YSI, INW, Observant products

• Solinst 101 Water Level Meter
• Solinst 101M Water Level Meter Mini
• Solinst 102 Water Level Meter
• Solinst 102M Water Level Meter Mini
• Solinst 103 Tagline
• Solinst 107 TLC Meter
• Solinst 122 Interface Meter
• Solinst 122M Interface Meter Mini
• Solinst 501 Well casing Depth Indicator
• Solinst 3001 Levelogger
• Solinst 3001 Leveloader
• Solinst 3001 Barologger
• Solinst 3001 Levelogger Junior
• Solinst 3001 LTC logger Junior
• YSI Level Scout
• YSI Baro Scout
• Clean Earth Technologies Spill Buddy
• Clean Earth Technologies Magnum Spill Buster
• INW Aquistar PT2X
• INW Aquistar PS-98i
• INW Aquistar PS-9800
• Observant L1 Level Sensor

Solinst 101 Water Level Meter

Applications

Measurement of groundwater depth in wells, boreholes and standpipes.

The 101 Water Level Meter consists of a choice of a P2 or P6 probe design attached to a polyethylene tape at one end, and at the other end a reel containing the electronic components of the instrument. Two stainless steel conducting cables run down the length of the tape from the reel to the probe. When the probe comes in contact with water, the circuit is completed which in turn activates a buzzer and light on the reel. The tape has clear markings every millimetre and is labeled every centimetre and metre. A controller on the reel allows for a change of sensitivity to ensure a clear signal in high and low conductivity conditions.

Datasheet

Solinst 101M Water Level Meter Mini

Applications

Measurement of groundwater depth in wells, boreholes and standpipes.

The 101 Water Level Meter Mini is an adaptation of the 101 Water Level Meter for narrow diameter applications. Two probe choices are available: the P1 probe has a diameter of 7.9 mm, and the P2 a diameter of 9.5 mm. The probes are attached to polyethylene tape of either 65 ft or 20 m lengths marked either 1/100 ft or 1mm respectively, which is mounted on a conveniently small reel which fits easily into a mini carrying-case or backpack.

Datasheet

Solinst 102 Water Level Meter

Applications

Measurement of groundwater levels in narrow openings such as piezometers.

The Water Level Meter consists of a choice of P1 or P2 probe design attached to a heavy-duty jacket and stainless steel coaxial cable. When the probe comes in contact with water, the circuit is completed which in turn activates a buzzer and light on the reel. The 102 Water Level Meter is much narrower than the 101 Water Level Meter making it specific for small diameter tubes and piezometers or for cases where flexible cable is required to slide past an in-well pump. A controller on the reel allows for a change of sensitivity to ensure a clear signal in high and low conductivity conditions.

Datasheet

Solinst 102M Water Level Meter Mini

Applications

Measurement of groundwater levels in narrow openings such as piezometers.

The 102 Mini is a mini version of the 102 Water Level Meter. A laser marked coaxial cable is mounted on a conveniently small reel that is light-weight and fits easily into a mini carrying case or backpack. The accurate cable is marked each millimetre. The 102 Mini is available in 25 m lengths. There is the choice of the P1 (6.4 mm diameter) or P2 (10 mm diameter) Probes with segmented weights.

Datasheet

Solinst 103 Tagline

Applications

Designed for use during monitoring-well installation or as a hanger cable for suspending pumps.

The Tag Line is a polyethylene coated 1.6 mm diameter stainless steel cable on a reel marked every metre or ½ metre, with a heavy stainless steel weight attached at the end. It provides a simple method to measure the depth to the bottom of a well, or the depth to the top of a backfill sand or bentonite layer during the completion of a well. With a 122 kg minimum tensile strength, it can also be used as a multi-purpose marked support cable. The cable is mounted on a free-standing reel with a carry handle, brake and a holder for the weight.

Datasheet

Solinst 107 TLC Meter

Applications

Measurement and profiling of conductivity and temperature in wells and open water

The TLC (Temperature/Level/Conductivity) Meter consists of a probe attached to a polyethylene tape at one end, and at the other end a reel containing the electronic components of the instrument. Two stainless steel conducting cables run down the length of the tape from the reel to the probe. When the probe comes in contact with water, a speaker sounds as the water completes the electric circuit. An LCD displays readings for conductivity and temperature and rotates independently of the reel for ease of use.

Datasheet

Solinst 122 Interface Meter

Applications

Determination of LNAPL and DNAPL layers

The Interface Meter cosists of a probe attached to a polyethylene tape at one end, and at the other end a reel containing the electronic components of the instrument. Two stainless steel conducting cables run down the length of the tape from the reel to the probe. The probe incorporates an infra-red beam and a detector receiving the light signal. When the probe is submerged in any liquid the light is refracted away from the detector causing the system to go into alarm mode. If the layer is NAPL (conductivity less than 50 μS/cm) the alarm will sound with a steady tone and light. When the probe hits water (conductivity greater than 50 μS/cm) the infra-red alarm circuit is overridden and the conductivity alarm is activated, noticeable by a rapid intermittent tone and flash of light.

Datasheet

Solinst 122M Interface Meter Mini

Applications

Determination of LNAPL and DNAPL layers

The 122 Mini is a convenient small version of the 122 Oil/Water Interface Meter, small enough to fit in a backpack. A custom carrying bag is also an option. The 122 Mini is available in 20 m lengths. The 16 mm diameter probe is attached to narrow 6 mm tape, which is accurately marked each millimetre. Enhanced electronics allow operation for up to 300 hours of on-time, using one 9V battery.

Datasheet

Solinst 501 Well casing Depth Indicator

Applications

Determination of Steel Casing Depth in Wells.

The 501 probe is a simple pendulum attached to marked tape available in lengths from 15 m to 450 m. When the probe is no longer adjacent to steel casing a signal ceases and the depth can be read from the markings on the tape. The dog bone tape profile prevents adherence due to wetting.

Datasheet

Solinst 3001 Levelogger

Applications

Long-term water level monitoring in wells, surface water bodies and seawater environments

Stream gauging, lake levels and reservoirs.

Tank level monitoring.

The Levelogger has a 22 mm x 154 mm watertight stainless steel housing with a zirconium nitride coating for corrosion resistance. Incorporating a pressure transducer and temperature sensor and a 10 year battery life, the Levelogger is designed for measuring and logging water levels in a vast range of different scenarios, with real time data viewing and export capability. It can be linked to radio or mobile networks. With a sealed Faraday Cage design, maintenance is simplified and protection is provided against electrical spikes caused by lightning. The Levelogger is an absolute pressure transducer (water pressure + atmospheric pressure) and requires a Barologger for accurate barometric compensation.

Datasheet

Solinst 3001 Leveloader

The Leveloader is a PDA with a rugged, water resistant and ergonomic exterior, designed specifically for use with Leveloggers, Barologgers and Rainloggers in the field. It is used to download, store and transfer multiple data files using 8 Mb of non-volatile FLASH memory. It can hold 1,390,000 LT readings, 930,000 3001 LTC readings or 34 full Levelogger downloads.

Datasheet

Solinst 3001 Barologger

The Barologger is used to perform barometric compensation for the data obtained by a Levelogger by logging the atmospheric pressure, giving the absolute pressure (water pressure + atmospheric pressure) from which the level can be calculated. By using a Barologger with a Levelogger, there is no time lag in the compensation calculation which can be introduced by moisture build up, kinking or damage to vented cables. The Barologger uses algorithms based on air rather than water, giving superior accuracy. The Data Compensation Wizard in the Levelogger software greatly simplifies the barometric adjustment of the water level measurements by using the synchronized data from one on-site 3001 Barologger with all of the Leveloggers. The overall results give more reliable, highly accurate level data than that obtained when using high maintenance and expensive vented cable.

Datasheet

Solinst 3001 Levelogger Junior

The Levelogger Junior provides an inexpensive alternative to the Levelogger Gold for measuring groundwater and surface water levels. Incorporating a pressure transducer, temperature sensor and a 5 year battery life, the Levelogger is designed for measuring and logging water levels in a vast range of different scenarios. With a sealed Faraday Cage design, maintenance is simplified and protection is provided against electrical spikes caused by lightning. The Levelogger is an absolute pressure transducer (water pressure + atmospheric pressure) and requires a Barologger for accurate barometric compensation.

Datasheet

Solinst 3001 LTC logger Junior

The LTC (Level/Temperature/Conductivity) is similar to the Levelogger Junior in that it combines a pressure transducer and temperature sensor in a stainless steel housing, but it also incorporates a conductivity sensor. The sensor is a 4-electrode platinum sensor with auto ranging capabilities and is easy to calibrate.

Datasheet

YSI Level Scout

The Level Scout is a combined pressure and temperature sensor for logging water level for a range of applications including groundwater monitoring, pump and slug tests, soil vapour extraction, gauging stations etc. providing level accuracy of ±0.05 % at >3 m of head, ± 0.1 at <3 m head. The Level Scout can be either absolute, requiring a Baro Scout for atmospheric compensation or vented, which does not require compensation. Data logging modes include linear, linear averaging, event triggered and logarithmic sampling. The casing can be either 316 Stainless Steel or Titaniumwith 2 or 4 Mb data storage providing 600,000 data points for level ranges up to 210 m. The field-replaceable batteries provide a 3 year life span.

Datasheet

YSI Baro Scout

Designed for use with the YSI Level Scout, the unit logs barometric pressure to provide an accurate measure of water level in combination with the Level Scout by compensating for atmospheric pressure. The unit has a stainless steel casing, and can be specified with either 2 Mb or 4 Mb of data storage.

Datasheet

Clean Earth Technologies Spill Buddy

The Spill Buddy™ is a compact, manually operated, floating petroleum product (LNAPL) pump, which uses sensors to determine the product/water interface. The Spill Buddy can also be used to remove heavier-than-water (DNAPL) contaminants.

The Spill Buddy Pro combines the above manually operated 12 Volt pump with an interface probe. This system is used to measure the "depth-to-product" and "depth-to-water" in test wells. The measuring tape and audible feedback allows the user to determine the thickness of the product layer. The operator can pump the product from the well by activating a small switch located on the reel assembly. Pumped product is discharged through a hose on the back side of the reel assembly, into a collection container.

The probe easily fits into wells as small as 2" in diameter and can skim up to 0.7 gallons of product per minute. The Spill Buddy units also have a self contained battery rechargeable from a 12 V DC source (car battery or cigarette lighter socket-optional), or the wall transformer provided with the unit. The units can operate for up to one hour of continuous pumping (approx. 40 gallons) per charge.

Datasheet

Clean Earth Technologies Magnum Spill Buster

The Magnum Spill BusterTM is an automated free phase petroleum contamination pumping system. It is specifically designed to remove floating petroleum product (LNAPL) from the water table via a 2" or larger diameter well. The unique auto-seeking device allows the pump intake to automatically follow the elevation of the oil/water interface as it fluctuates. This is very useful in areas where the water table elevation fluctuates often. The Magnum Spill Buster will not pump water. The system can easily be configured to also pump DNAPL as well.

Datasheet

INW Aquistar PT2X

An integrated datalogger and pressure/temperature sensor ideal for monitoring groundwater, well, tan and tidal levels, as well as for pump testing and flow monitoring. Constructed with 316 stainless steel, Viton® and Teflon®, the sensor provides high-accuracy readings in rugged and corrosive field conditions. The Windows®-based Aqua4Plus software is easy to use, affording the user extensive control, including real time monitoring, flexible programming, easy field calibration, and a delayed start feature. Aqua4Palm is available for Palm®-based handhelds, allowing the user to create test sessions, examine data, and monitor real time readings with the convenience and portability of a PDA.

Datasheet

INW Aquistar PS-98i

This two-wire, 4-20 mA water level and pressure sensor (with optional temperature sensing capability) offers improved noise immunity, thermal performance and transient protection. Reverse polarity protection, under-current and over-current limitation are also featured on the transmitter channel. The cable harness design reduces the probability of leakage and protects the cable jacket from damage by providing double-sealing, and the 316 stainless steel, Viton® and Teflon® construction increases corrosion resistance. The transmitter’s standard end cone is a 1/4” NPT inlet which allows for increased application use, easy hookup and field calibration. The modular-designed PS98i may be easily factory serviced and repaired.

Datasheet

INW Aquistar PS-9800

The PS-9800 is similar to the PS-98i in that it consists of a two-wire, 4-20 mA water pressure and level sensor (with optional temperature sensing capability) offering noise immunity, thermal performance and transient protection. However, an optional 4-20 mA temperature measurement is available as a second channel within the device. In addition to reverse polarity protection, under-current and over-current limitation is featured on both transmitter channels. The updated cable harness design reduces the probability of leakage and protects the cable jacket from damage by providing double-sealing, and 316 stainless steel or titanium housing, Viton® and Teflon® construction increases corrosion resistance. The transmitter’s end cone is interchangeable with a 1/4” NPT inlet which allows for increased application use, easy hookup and field calibration. The modular-designed PS9800 may be easily factory serviced and repaired.

Datasheet

Observant L1 Level Sensor

The Observant L1 is a simple and robust water level sensor designed for use in dams, rivers and tanks. It is resistant to fouling and scale build-up, allowing it to operate in muddy or highly mineralised water without fault. It offers a measurable range of 2400 mm, with 20 mm resolution, and a robust sealed aluminium enclosure. It requires no calibration, and has software configurable display options. The Modbus/RS485 communications system allow for multiple sensor systems.

Datasheet