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Measure the water level in a borehole – including Oil/Water Interface, draw-down, well casing, temperature, EC and total depth

We supply the Solinst range of Water Level Meters (WLM). They come in lengths of 30m, 60m, 100m, 150m, 250m and longer. Their tapes or cables are marked every mm. Also two models of Sonic (Sound) Water Level meters, one from Solinst and one from ENO Scientific.

For measuring static water level (SWL) only	Model 101 with P2 probe Model 102 with P4 or P10 probe Model 104 Sonic ENO Well Sounder Pro 2010
For measuring static water level (SWL) and total well depth	Model 101 with P7 probe
For measuring Oil/Water interface	Model 122 Interface Meter (IFM)
For measuring SWL, temperature and total well depth	Model 201 WLT Meter (Water Level and Temperature)
For measuring SWL, temperature, EC and total well depth	Model 107 TLC Meter (Temperature, Level, Conductivity)
For measuring draw-down in a borehole	Model 101D (Draw-down) Meter
For measuring total well depth only, to the nearest 5cm (no SWL)	Model 103 Tagline

Monitor the water level in a borehole over a period of time

We supply the Solinst Logger 5 range of non-vented and vented Leveloggers. These units can all be pre-programmed to take readings of pressure and temperature (and conductivity in the case of the LTC logger) and to save these readings. The Software for programming is available as a free download from the Solinst website. It is updated regularly, and so is the Firmware that resides on the loggers, so it is recommended that one regularly logs on to their website to check if there are any updates.

Logger 5 range

Non-Vented loggers for typical monitoring static water level (SWL) in boreholes.

Vented loggers for monitoring levels in surface water bodies or shallow boreholes (less than 30m)

Monitor the water level in a borehole over a period of time – Solinst non-vented loggers

SOLINST NON-VENTED LEVELOGGERS FOR TYPICAL MONITORING OF STATIC WATER LEVEL (SWL) IN BOREHOLES (BH) – important points:

Non-vented loggers read and record total pressure, thus water pressure plus barometric pressure.
Therefore, when monitoring a bh for a long period of time (days/weeks/months), one has to compensate for barometric pressure by deducting it from the total pressure recorded by the Levelogger. This is done by installing a Barologger in the bh above water level to record barometric pressure. Only 1 Barologger is needed for all bh in a 30km radius. The Solinst software can do the compensation by using the data files downloaded from the Levelogger and Barologger.
Solinst Leveloggers are designed to operate at various depths under water level – 5m, 10m, 20m, 30m, 100m and 200m. This is denoted by M, so a Solinst Logger 5 LT M10 Levelogger is designed for 10m under water level and it can read and record Level and Temperature. A Logger 5 LTC M100 Levelogger is designed for 100m under water level and it can read and record Level, Temperature and Conductivity.
Accuracy of the level/pressure sensor is ±0.05% of Full Scale (FS) for the Logger 5 units. Thus a M10 unit is accurate to ±5mm, a M30 unit to ±15mm and a M100 unit to ±5cm. It is therefore important to choose the correct depth range unit for your application. A M100 unit can function easily in 30m of water, but won’t be as accurate as a M30 unit.
Burst pressure of the pressure sensor is 2x over-pressure, so a M10 unit will break if more than 20m under water, a M100 unit will break if more than 200m under water, etc.

LOGGER DEPLOYMENT OPTIONS:

- Barologgers and Leveloggers can be suspended from rope or from a Solinst Direct Read Cable (DRC).
- For rope we recommend and supply Kevlar as it does not shrink or expand with temperature or when wet. With this lower cost deployment, there is no contact point at ground level and the logger must be removed from the bh for data download.
- With the DRC deployment there is a contact point on ground level. Thus data can be downloaded and loggers can be re-programmed from the surface without having to extract them from the bh.

For measuring and recording barometric pressure	Barologger 5
For measuring and recording the level/pressure in a borehole	Logger 5 LT (Level, Temperature) Levelogger
For measuring and recording the level/pressure in a shallow borehole or surface body of water – lower cost and less accuracy	Logger 5 Junior LT Levelogger
For measuring and recording the level/pressure and conductivity in a borehole	Logger 5 LTC (Level, Temperature, Conductivity) Levelogger

SOLINST LOGGER 5 ACCESSORIES FOR PROGRAMMING AND DATA DOWNLOAD

Logger deployed on Kevlar – must be extracted from bh to program and/or download data	Optical (Desktop) Reader PC-DRC Interface Cable + Slip-Fit Adaptor
Logger deployed on DRC – contact point on ground level to connect to logger to program and/or download data	PC-DRC Interface Cable DataGrabber App Interface Solinst Readout Unit (SRU)
Adding telemetry: if there is cell reception where the logger is installed and it is deployed on DRC. The LevelSender will send data from the logger via email and/or sms.	Solinst LevelSender

Monitor the water level in a surface body of water or shallow borehole over a period of time

SOLINST VENTED LOGGERS FOR MONITORING LEVELS IN SURFACE WATER BODIES OR SHALLOW BOREHOLES (less than 30m) – important points:

The Solinst LevelVent 5 is a vented Levelogger – it has a vented cable and therefore automatically compensates for barometric pressure.
It is ideally suited for recording water levels in surface water bodies such as tanks, dams, reservoirs, streams and also in shallow bh less than 30m deep.
The LevelVent offers 3 depth ranges – 5m, 10m and 20m (M5, M10 and M20).
Accuracy of the level/pressure sensor is ±0.05% of Full Scale (FS). Thus a M5 unit is accurate to ±2.5mm, a M100 unit to ±5mm and a M20 unit to ±10mm.
Burst pressure of the pressure sensor is 2x over-pressure, so a M10 unit will break if more than 20m under water and a M20 unit will break if more than 40m under water, etc.
The LevelVent is attached to a vented cable of the required length. The other end of the cable is attached to a Wellhead Assembly which then provides a contact point above water where data can be downloaded and/or the logger re-programmed.

For measuring and recording water level in dam, reservoir, stream etc. or shallow borehole

LevelVent 5

SOLINST LEVELVENT 5 ACCESSORIES FOR PROGRAMMING AND DATA DOWNLOAD – these are the same as for the Logger 5 units

LevelVent deployed on vented cable and Wellhead Assembly	PC-DRC Interface Cable DataGrabber App Interface Solinst Readout Unit (SRU)
Adding telemetry: if there is cell reception where the LevelVent installed. The LevelSender will send data from the LevelVent via email and/or sms.	Solinst LevelSender

Measure or monitor water quality parameters in a borehole – in situ

We supply the Aquaread and Eureka ranges of multi-parameter probes as well as a number of transducers from Global Water. The multi-probes come with a probe body that is fitted with sensors for the various parameters and the larger units offer open/spare ports that can be fitted with sensor/s specified by you as the user. The transducers all offer a 4-20mA output for a single parameter.

AQUAREAD MULTI-PROBES

EUREKA MULTI-PROBES

AQUAREAD MULTI-PROBES – sensors available for the following parameters:

Standard Parameters

Dissolved Oxygen (DO)
Depth
Electric Conductivity (EC)
Total Dissolved Solids (TDS) – derived from EC
Resistivity – derived from EC
Salinity – derived from EC
Seawater Specific Gravity (SSG) – derived from EC
pH
Oxygen Reduction Potential (ORP/Redox)
Temperature

Optical Sensors

Turbidity
Chlorophyll
Phycocyanin (Freshwater Blue Green Algae)
Phycoerythrin (Marine Blue Green Algae)
Rhodamine
Fluorescein
Refined Oil
Chromophoric/Fluorescent Dissolved Organic Matter (CDOM/FDOM)

Ion Selective Electrodes (ISE)

Ammonium and Ammonia
Chloride
Fluoride
Nitrate
Calcium

Deployment

These probes can be used in a mobile application to measure water quality parameters at various sites – surface water or down boreholes.
In addition, they can be deployed in a fixed capacity to monitor and record water parameters in surface or groundwater over long periods of time.
Extension cables for deep wells are available, as well as Flow-through Cells.

AQUAREAD MULTI-PROBES – range of model sizes available:

Optical DO, EC and Temperature. No spare slots.	AquaPlus
Any single Optical Sensor. No spare slots.	AP-Lite
pH, ORP, EC, TDS, SSG, Resistivity, Salinity, DO and Temperature. No spare slots.	AP-700
pH, ORP, EC, TDS, SSG, Resistivity, Salinity, DO, Turbidity and Temperature. No spare slots.	AP-800
pH, ORP, EC, TDS, SSG, Resistivity, Salinity, Optical DO and Temperature. Plus 2 spare slots.	AP-2000
pH, ORP, EC, TDS, SSG, Resistivity, Salinity, Optical DO, Depth and Temperature. Plus 2 spare slots.	AP-2000D
pH, ORP, EC, TDS, SSG, Resistivity, Salinity, Optical DO, Depth and Temperature. Plus 4 spare slots.	AP-5000
pH, ORP, EC, TDS, SSG, Resistivity, Salinity, Optical DO, Depth and Temperature. Plus 6 spare slots.	AP-7000

EUREKA MULTI-PROBES – sensors available for the following parameters:

Standard Parameters

Dissolved Oxygen (DO) – Optical Sensor
Depth/pressure
Electric Conductivity (EC)
Total Dissolved Solids (TDS) – derived from EC
Resistivity – derived from EC
Salinity – derived from EC
Seawater Specific Gravity (SSG) – derived from EC
pH
Oxygen Reduction Potential (ORP/Redox)
Turbidity
Temperature

Fluorometers

Chlorophyll A – red and blue
Phycocyanin (Freshwater Blue Green Algae)
Phycoerythrin (Marine Blue Green Algae)
Rhodamine
Fluorescein
Tryptophan
Optical brightener
Refined Oil
Crude Oil
Chromophoric/Fluorescent Dissolved Organic Matter (CDOM/FDOM)

Ion Selective Electrodes (ISE)

Ammonium and Ammonia
Chloride
Fluoride
Nitrate
Calcium
Sodium
Bromide

Deployment

These probes can be used in a mobile application to measure water quality parameters at various sites – surface water or down boreholes.
In addition, they can be deployed in a fixed capacity to monitor and record water parameters in surface or groundwater over long periods of time.
Extension cables for deep wells are available, as well as Flow-through Cells.

EUREKA MULTI-PROBES – range of model sizes available:

Any single Sensor plus Depth and/or Temperature. No spare slots.	Manta Trimeter
DO, EC, pH/ORP, Depth and Temperature. No spare slots.	Manta+20
EC, pH/ORP, Depth, Turbidity or any Fluorometric Sensor and Temperature. No spare slots.	Manta+25
DO, EC, pH/ORP, Depth, Turbidity and Temperature. No spare slots.	Manta+30A
DO, EC, pH/ORP, Depth and Temperature. Plus 2 spare slots for any ISE.	Manta+30B
DO, EC, pH/ORP, Depth, Turbidity and Temperature. Plus 2 spare slots for ISE and 2 spare slots for Fluorometric sensors.	Manta+35A
DO, EC, pH/ORP, Depth, Turbidity and Temperature. Plus 3 spare slots for Fluorometric sensors	Manta+35B
DO, EC, pH/ORP, Depth, Turbidity and Temperature. Plus 3 spare slots for ISE and 3 spare slots for Fluorometric sensors.	Manta+40

Take a water sample from a borehole

We supply a range of bailers and pumps. It is important to know whether there are any hydrocarbons present where samples will be taken as it affects one's choice of bailer or pump. Another important factor for pumps is how far below ground level the water must be pumped from – i.e. what is the required lift or depth to water. The pumps have different strengths and part of their specification is the lift they can deliver.

DISPOSABLE BAILERS AND STAINLESS STEEL BAILERS

SAMPLING PUMPS

PUMPS THAT CAN BE USED FOR PURGING AND/OR SAMPLING

DISPOSABLE AND STAINLESS STEEL BAILERS. They come in various sizes and some can even be used in very confined spaces. Some disposable bailers have a diameter of 12.5mm for sampling in narrow spaces.

No hydrocarbons present	PVC or PE disposable single and double valve bailers Stainless Steel double valve bailers Hydrasleeves Discrete Interval Sampler
Hydrocarbons present	Teflon disposable single and double valve bailers Stainless Steel double valve bailers Discrete Interval Sampler (DIS)
Sampling for Volatile Organic Compounds (VOC)	Passive Diffusion Bailers (PDB)
Cleaning detergents for SS Bailers and DIS	Liquinox and Alconox

SAMPLING PUMPS – specialised for low flow sampling. Can be used even when there are hydrocarbons present.

Shallow applications – lift less than 10m	Solinst Model 410 Peristaltic Pump Eijkelkamp Peristaltic Pump
Deeper applications – lift up to 150m	Solinst Model 407 Bladder Pump Solinst Model 408 Double Valve Pump

SAMPLING/PURGING PUMPS – some of these units have variable speed controllers so they can be used for purging and/or sampling

Low cost and rugged – inertial pumps

Waterra Inertial Pumps made up of a foot valve and tubing. It can be operated by hand or with an actuator.

Foot Valves Actuator – Lever Pump Actuator - Hydrolift Actuator – Power Pack

Centrifugal pumps – 10m to 90m

Proactive Plastic and Stainless Steel pumps Eijkelkamp MP1 pump Solinst Model 415 SS pump

Measure water quality parameters in a body of surface water or a water sample

We supply a range of pocket-type meters from Extech. These units are good value for money and simple to operate. They typically read temperature plus one or more water quality parameters.

pH + temperature only	Extech PH100 pocket meter Extech PH110 pocket meter Extech PH300 handheld meter
Conductivity (EC) + temperature only	Extech EC400 pocket meter Extech EC210 handheld meter
Total Chlorine + temperature only	Extech CL200 pocket meter
Dissolved Oxygen (DO) + temperature only	Extech DO600 pocket meter Extech 407510 Heavy Duty DO Meter
Turbidity only	Extech TB400 Turbidity meter
Oxygen Reduction Potential (ORP) + Temperature only	Extech RE300 pocket meter
pH + EC + temperature	Extech EC500 pocket meter – also in EC510 kit Extech EC600 kit
pH + EC + DO + temperature	Extech DO700 kit Extech DO610 kit
All these parameters and more can also be measured in a water sample with the Aquaread and Eureka multi-parameter probes	Aquaread multi-probes Eureka multi-probes
Analyse hydrocarbons such as gasoline, oil, coal tar, jet fuel, etc	SiteLab UVF Trilogy Portable Hydrocarbon Analyzer

Do a pump test to determine the yield of a borehole

Drawdown tests can be done with a variety of instruments. These all measure the SWL as it changes. Water flow being pumped out of the borehole must be measured separately by a suitable method such as a flow meter.

Manual method with drawdown meter	Solinst Model 101D Drawdown Meter
Automatic logging of the SWL readings with a Levelogger. If the Levelogger is suspended from a Direct Read Cable (DRC) one can also display readings on a laptop in real time	Solinst Levelogger 5 LT
Using a sonic Water Level Meter	ENO Wellsounder PRO Solinst Model 104 Sonic WLM
The ENO Wellsounder also offers a kit with a flow meter included to measure the flow rate during the test	ENO WS2100 Flow Meter Kit

Do the Electric Conductivity (EC) profile of a borehole

EC profiling can be done with the Solinst TLC Meter or the Solinst Levelogger 5 LTC.

Manual method with TLC meter	Solinst Model 107 TLC Meter
Automatic logging of the EC, depth and temperature readings with a Levelogger. If the Levelogger is suspended from a Direct Read Cable (DRC) one can also display readings on a laptop in real time	Solinst Levelogger 5 LTC

Quality guaranteed

Our wide range of top-quality soil and water monitoring equipment is delivered to our customers in South Africa and sub-Sahara Africa since 1989.

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