Description
Incorporating a 4-pole epoxy and graphite electrode cell, this Water Quality Logger is extremely accurate, durable and resistant to data interferences making it excellent for use in rugged field conditions. Powerful and easy-to-use software gives extensive control, including real-time monitoring, flexible programming, and versatile data display options.
- Water Quality sensor to measures conductivity, total dissolved solids and temperature
- High accuracy, research grade water quality logger
- 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 fluprppolymer 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.
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
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 - 2×1.5V AA Alkaline2
Auxiliary Power - 12 VDC – Nominal
- 6-15VDC – Range
Exp. Alkaline Battery Life
- 18 months at 15m polling interval7
Element Type - 30K ohm thermistor
Element Material - Epoxy bead/external housing
Units - Celsius, Fahrenheit, Kelvin
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
Probe Material - Epoxy/Graphite
Static Accuracy - ± 0.05% of measured value
Ranges - 0-100,000 or 0-200,000 or 0-300,000 μS/cm
Conductivity6 - 4.9-49,000 or 4.9-98,000 or 4.9-147,000 mg/L
TDS - 2-42 PSU
Salinity
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
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.
