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INW Smart Sensors & Loggers

Van Walt is proud to supply INW Smart Sensors & Loggers. These highly accurate sensors detect minute changes in water parameters including level, pressure, temperature, conductivity, bromide, chloride, pH, ORP, dissolved oxygen and turbidity. The 'mm' precision of these vented sensors make them ideal for monitoring water levels where accuracy is paramount. Each will deliver reliable information, without the need for barometric compensation. Accurate data on which to make critical decisions.

INW Smart Sensors & Loggers are designed and built for field use to record data, control system operations and communicate over a telemetry network, if desired. These smart sensors will send instant updates, compensate for interference, communicate with other devices and store up to 520,000 readings. They only require a low power source, which is user replaceable, so are ideal for long-term deployment.

PT2X – Pressure & Temperature Sensor

Advantages

The PT2X records pressure and temperature. A versatile sensor for many applications it has an integrated datalogger that will collect up to 520,000 records, Aqua4Plus control software, is easily connected to other sensors and is thermally compensated for volatile conditions – making it ideal for observing flow patterns, testing pumps, monitoring groundwater, well, tank and tidal levels or any application where 'mm' accuracy is important.

Benefits:

- PT2X Sensor

  • Typical accuracy of ± 0.05%
  • Constructed from 316 stainless steel, fluoropolymer and PTFE (titanium optional) to provide highly accurate readings in rugged and corrosive field conditions.
  • Measures pressure, temperature and time
  • Available as a vented system
  • Thermally compensated for a wide range of water temperatures variations
  • Low power requiring just two internal AA batteries
  • External power options (12 VDC) with AA's acting as backup
  • Available for both Modbus® and SDI-12 protocols.

- Datalogger

  • Non-volatile memory so data is not lost in the event of a power failure
  • Flexible, multi-phase logging sequences so you can measure at specified intervals and save instructions to disk for reuse
  • Pause logging feature to temporarily pause the logging while repositioning or transporting sensor
  • Delayed start feature for specific future start times and to make it easy to set several sensors to start at the same time.

- Cabling

  • Field-replaceable connectors that are easily removed and replaced to allow you to route the cable through well seals, walls or conduit
  • Available as a cableless unit or with a variety of cable options, including polyethylene, polyurethane and FEP for a wide range of applications
  • Bespoke cable lengths available.

- Software

  • Comes with free Aqua4Plus control software
  • View your data in real-time
  • Easy export to spreadsheets and databases
  • Barometric compensation utility for use with absolute sensors
  • Update sensor via firmware while in the field, ideal for future updates or custom development.

Applications:

  • Wetland monitoring
  • Well, tank, tidal levels
  • River, stream, reservoir gauging
  • Stormwater runoff monitoring
  • Resource administration
  • Pump and slug tests.

Specifications: PT2X – Pressure & Temperature Sensor

General
Length w/batteries 12.18” (30.9 cm)
Length w/o batteries 8.37” (21.3 cm)
Cableless 0.25” (0.6 cm) shorter
Diameter 0.75” (1.9 cm)
Weight 0.8 lb. (0.4 kg)
Body Material Acetal & 316 stainless steel or titanium
Wire Seal Material Fluoropolymer and PTFE
Submersible Cable Polyurethane, polyethylene or FEP available
Protection Rating IP68, NEMA 6P
Desiccant 1-3 mm indicating silica gel (high or standard capacity)
Terminating Connector Available
Communication RS485 Modbus® RTU
SDI-12 (ver.1.3)
Direct Modbus Read Output 32-bit IEEE floating point
SDI-12 Output ASCII
Operating Temp. Range3 -15° C to 55° C
Storage Temp. Range1 -40° C to 80° C
Logging
Memory 4MB - 520,000 records
Log Types Variable, user-defined, logarithmic, profiled
Programmable Baud Rate 9600, 19200, 38400
Logging Rate 8x/sec maximum
Software Complimentary Aqua4Plus or Aqua4Push
Networking 32 available addresses per junction w/ batching capabilities (up to 255)
File Formats .xls / .csv / .a4d
Power
Internal Battery 2x1.5V AA alkaline2
Auxiliary Power 12 VDC - Nominal
6-15VDC - Range
Exp. Alkaline Battery Life 18 months at 15m polling interval6
Temperature
Element Type Digital IC on board
Accuracy ± 0.5° C
Resolution 0.1° C
Range -40° C to 80° C
Units Celsius, Fahrenheit, Kelvin
Pressure
Transducer Type Silicon strain gauge
Transducer Material 316 stainless steel or titanium

Pressure Ranges5

Gauge

  • PSI
  • FtH2O
  • mH2O

Absolute7

  • PSI
  • FtH2O
  • mH2O

 

 

  • 18, 5, 15, 30, 50, 100, 300
  • 2.38, 12, 35, 69, 115, 231, 692
  • 0.78, 3.5, 10.5, 21, 35, 70, 210

 

  • 30, 50, 100, 300
  • 35, 81, 196, 658
  • 3.5, 10, 24, 59, 200
Units PSI, FtH2O, inH2O, cmH2O, mmH2O, mH2O, inHg, cmHg, mmHg, Bars, mBars, kPa
Static Accuracy ± 0.05% FSO (typical)
± 0.1% FSO (maximum)
(B.F.S.L. 20° C)
Resolution 0.0034% FS (typical)
Maximum Operating Pressure 1.1 x FS
Burst Pressure4 3.0 x FS
Compensated Range 0° C to 40° C

1. Storage without batteries
2. Lithium available upon request
3. Requires freeze protection kit if in water below freezing
4. Burst reduced at PSI>300
5. Higher pressure ratings available upon request
6. May vary due to environmental factors
7. Depth range for absolute sensors has 14.7 PSI subtracted to give actual depth allowed.
8. ±0.25% accuracy FSO (max) at this range.

Videos, Manuals & Downloads

Introducing AquiStar sensors from INW

PT2X logger. Removing the field connector

Contact

Please email sales@vanwalt.com or click here to complete our enquiry form.

CT2X – Conductivity Sensor

Advantages

The CT2X measures conductivity, total dissolved solids and temperature with built-in datalogging that collects up to 349,000 records and measures as low as 10 µS /cm and as high as 300,000 µS /cm (300 mS/cm).

Incorporating a 4-pole epoxy and graphite electrode cell, it is extremely durable and resistant to data interferences making it excellent for use in rugged field conditions. The CT2X incorporates the powerful and easy-to-use Aqua4Plus software to give you extensive control, including real-time monitoring, flexible programming, and versatile data display options.

Benefits:

  • Measures conductivity, total dissolved solids and temperature
  • Ranges from 10 µS/cm to 100,000 µS/cm (200,000 and 300,000 µS/cm available on request)
  • Pressure and level option available
  • In-field calibration capabilities
  • Narrow 0.75″ diameter, 12.5″ or 16″ length (depending on version)
  • Linear and nLFn temperature compensation
  • Up to 349,000 records in non-volatile memory
  • 316 stainless steel, fluoropolymer and PTFE construction (titanium optional)
  • Digital industry standard RS485 interface
  • Available with a variety of cable options, including polyethylene, polyurethane and FEP Teflon
  • Modbus and SDI-12 protocols available
  • Bespoke cable lengths available
  • Easy export to spreadsheets and databases.

Applications:

  • Wetland surveys
  • Saltwater intrusion monitoring
  • Agricultural runoff studies
  • Discharge monitoring.

Specifications: CT2X – Conductivity Sensor

General
Length w/batteries w/pressure 16.40” (41.6 cm)
w/o pressure 12.59” (32.0 cm)
Length w/o batteries w/pressure 14.90” (37.8 cm)
w/o pressure 11.09” (28.2 cm)
Cableless 0.25” (0.6 cm) shorter
Diameter 0.75” (1.9 cm)
Weight 1.0 lb. (0.5 kg)
Body Material Acetal & 316 stainless steel or titanium
Wire Seal Material Fluoropolymer and PTFE
Submersible Cable Polyurethane, polyethylene or FEP
Cable weight 4lbs./100ft (1.8kg/30 m)
Protection Rating IP68, NEMA 6P
Desiccant 1-3 mm indicating silica gel (high or standard capacity)
Terminating Connector Available
Communication RS485 Modbus® RTU
SDI-12 (ver.1.3)
Recommended Operating Temp Range3 -5° C to 40° C
Storage Temp. Range1 -40° C to 80° C
Logging
Memory 4MB - 349,000 records
Log Types Variable, user-defined, logarithmic, profiled
Programmable Baud Rate 9600, 19200, 38400
Logging Rate 4x/sec maximum
Software Complimentary Aqua4Plus or Aqua4Push
Networking 32 available addresses per junction w/ batching capabilities (up to 255)
File Formats .xls / .csv / .a4d
Power
Internal Battery 2x1.5V AA Alkaline2
Auxiliary Power 12 VDC - Nominal
6-15VDC - Range
Exp. Alkaline Battery Life 18 months at 15m polling interval7
Temperature
Element Type 30K ohm thermistor
Element Material Epoxy bead/external housing
Accuracy ± 0.25° C
Resolution 0.1° C
Range -5° C to 40° C
Units Celsius, Fahrenheit, Kelvin
Depth/Level
Transducer Type Silicon strain gauge
Transducer Material 316 stainless steel or titanium
Units PSI, FtH2O, inH2O, cmH2O, mmH2O, mH2O, inHg, cmHg, mmHg, Bars, mBars, kPa
Static Accuracy ± 0.05% FSO (typical)
± 0.1% FSO (maximum)
(B.F.S.L. 20° C)
Resolution 0.0034% FS (typical)
Maximum Operating 1.1 x FS
Burst Pressure4 3.0 x FS
Compensated Range 0° C to 40° C
Conductivity
Probe Material Epoxy/Graphite
Electrode 4-pole
Static Accuracy ± 0.05% of measured value
Resolution 32 bit
Ranges
Conductivity6
TDS
Salinity
0-100,000 or 0-200,000 or 0-300,000 μS/cm
4.9-49,000 or 4.9-98,000 or 4.9-147,000 mg/L
2-42 PSU
Units μS/cm, mS/cm, mg/L, PSU
Resolution 0.1 μS/cm / 0.001 mS/cm / 0.1 mg/L (TDS) / 0.001 PSU
Warm-up Time 200 msec
Thermal Compensation None, linear or nLFn

1. Storage without batteries
2. Lithium available upon request
3. Requires freeze protection kit if using pressure option in water below freezing
4. Burst reduced at PSI>300
5. Higher pressure ratings available upon request
6. Accuracy reduced at levels < 10μS/cm
7. May vary due to environmental factors
8. ±0.25% accuracy FSO (max) at this range
9. Depth range for absolute sensors has 14.7 PSI subtracted to give actual depth allowed.

Videos, Manuals & Downloads

Introducing AquiStar sensors from INW

Contact

Please email sales@vanwalt.com or click here to complete our enquiry form.

TempHion™ pH/ORP Sensor

Advantages

The TempHionTM submersible water quality sensor with integrated datalogger measures pH, ORP and temperature. Complete with powerful, easy-to-use Aqua4Plus software this sensor will collect up to 400,000 accurate records and, its patented reference electrode, provides long-term stability for continuous or intermittent monitoring, so is ideal for unattended onsite pH testing as no regular calibration or servicing is required.

Benefits:

  • Built for accuracy with low levels of 'noise'
  • Small 1.9cm diameter to fit most wells
  • Tough, field ready 316 stainless steel, fluoropolymer, acetal and PTFE construction
  • Low power requiring just two internal AA batteries
  • Long-term sensor stability up to 6 months
  • Measures pH at up to 150PSI
  • No data loss in the event of a power failure storing up to 400,000 records
  • Flexible Modbus® and SDI-12 interface
  • Simple export of data to spreadsheets and databases
  • Bespoke cable lengths available
  • Easy-to-use on-site calibration capabilities.

Applications:

  • Single or multi well tracer test
  • Saltwater intrusion tracking
  • Tidal influence studies
  • Waste water treatment discharge studies
  • pH monitoring.

Specifications: TempHion™ pH/ORP Sensor

General
Length w/batteries 17.96” (45.6 cm)
Length w/o batteries 14.16” (36.0 cm)
Cableless 0.25” (0.6 cm) shorter
Diameter 0.75” (1.9 cm)
Weight 0.85 lb. (0.4 kg)
Body Material Acetal & 316 stainless steel or titanium
Wire Seal Material Fluoropolymer and PTFE
Submersible Cable Polyurethane, polyethylene, or FEP
Protection Rating IP68, NEMA 6P
Desiccant 1-3 mm indicating silica gel (high or standard capacity)
Terminating Connector Available
Communication RS485 Modbus® RTU
SDI-12 (ver.1.3)
Direct Modbus Read Output 32-bit IEEE floating point
Millivolt Channels
   No. Available Channels
   Range
   Accuracy
   Resolution
2mV, 1 temp
± 1200mV
0.1% value
0.1mV
Reference
  Electrode
  Junction
  Electrolyte
Ag/AgCl solid-state electrode
Patented capillary liquid junction
TempHionTM reference solution
Operating Temp. Range -15° C to 55° C
Storage Temp. Range1 -40° C to 80° C
Maximum Depth 700ft (210m) / 300 PSI
Logging
Memory 4MB - 400,000 records
Log Types Variable, user-defined, logarithmic, profiled
Programmable Baud Rate (optional) 9600, 19200, 38400
Logging Rate 2x/sec maximum
Software Complimentary Aqua4Plus or Aqua4Push
Networking 32 available addresses per junction w/ batching capabilities (up to 255)
File Formats .xls / .csv / .a4d
Power
Internal Battery 2x1.5V AA alkaline2
Auxiliary Power 12 VDC - Nominal
6-15VDC - Range
Exp. Alkaline Battery Life 18 months at 15m polling interval3
Temperature
Element Type 30K ohm thermistor
Element Material Epoxy bead/external housing
Accuracy ± 0.2° C
Resolution 0.1° C
Range -5° C to 60° C
Units Celsius, Fahrenheit, Kelvin
pH/ORP
Sensor Type/Material
  pH
  ORP
Glass combination electrode
Platinum ring
Ranges
  pH
  ORP
0-14 pH units / -538mV to 260mV
± 1200mV
Units pH, mV, Eh
Typical Accuracy
  pH
  ORP
± 0.2 pH units
0.1 mVH
Resolution
  pH
  ORP
0.01 pH units
0.01 mVH units
Compensated Range 0° C to 40° C
Calibration
  pH
  ORP
One or two point calibration w/ pH buffers (7 & 4 or 10)
EH 1 pt. calibration
Reference Solution Potassium Nitrate - (KNO3)

1. Storage without batteries
2. Lithium available upon request
3. May vary due to environmental factors.

Videos, Manuals & Downloads

Introducing AquiStar sensors from INW

Contact

Please email sales@vanwalt.com or click here to complete our enquiry form.

USB Communication Kit

Advantages

The USB Communication Kit directly connects the INW AquiStar range of sensors to a field laptop, laptop or computer for plug-and-play connectivity.

The kit includes Aqua4Plus control software to allow for viewing the status of a sensor, monitoring real-time data, creating flexible and powerful test sequences and more.

Benefits:

  • Connects all AquiStar sensors
  • Available as individual items or as complete kit
  • Comes with Aqua4Plus software.

Coming soon...

Videos, Manuals & Downloads

Introducing AquiStar sensors from INW

Contact

Please email sales@vanwalt.com or click here to complete our enquiry form.

BLE 485

Advantages

The BLE 485 is a Bluetooth-low-energy wireless adapter connecting down-well loggers to a Windows 7, 8, 8.1 & 10 laptop or tablet device.

Benefits:

  • Hands-free operation of loggers with Bluetooth 4.0 connectivity
  • Ideal for difficult to access groundwater monitoring wells like those in restricted areas or behind fences and gates; or for motorway central reservations
  • Modbus RTU compatible
  • LED diagnostics
  • When speed of collecting data is important
  • Range 5 to 45 metres (dependant on atmospheric conditions and physical obstructions)
  • Battery operated with an estimated 5+ years of battery life
  • User replaceable batteries
  • Delivered with software and operational with Aqua4Plus and Aqua4Plus Lite software
  • Good value and faster than competitive alternatives.

Principle of operation:

  • The logger is connected to the top of the well with a cable
  • The cable connects to the Bluetooth unit with a standard, screw coupling
  • Bluetooth-low-energy technology links BLE485 to mobile or laptop
  • Software that runs on Windows 7, 8, 10 is provided
  • Data is downloaded from the groundwater loggers
  • Data can be exported to Excel for analysis.

Specifications: BLE 485

Mechanical Details
Bluetooth Technology 4.0+ compliant
Sleep, advertise and transmit modes supported
Built-in antenna
Power Internal battery 2 to 4 vdc
External 9 to 24 VDC
Serial RS-485 Technology Supports 9600, 19200 and 38400,57600, 115200 baud rates
RS-485 2 wire, Data A (-), Data B (+), grd
Industrial Bus
Indicators Multicolor LED's for wake state, on/off and other programmable indications
Modbus ASCII/RTU
Mechanical Enclosure: IP67
Material of construction: Anodized aluminum & polycarbonate
Environmental Operating temperature: -40 to 85oC
Approvals / Certifications FCC, IC, CE, ROHs
Bluetooth SIG declared

Videos, Manuals & Downloads

Coming soon...

Contact

Please email sales@vanwalt.com or click here to complete our enquiry form.