G-3 Drain Gauge - PVC
Lysimeters are powerful tools that can help us better
understand the water balance. The Drain Gauge G2 and G3
are low-cost options for measuring deep drainage. The
Smart Field Lysimeter is the complete package for
measuring the water balance, allowing us to measuring
deep drainage, evapotranspiration, and storage.
The Drain Gauge is constructed from inert materials, so
chemicals won't react with the tube, the sensors, or the
collection reservoir. Scientists and technicians have used
the Mini Disk Infiltrometer to design irrigation systems,
demonstrate hydraulic conductivity, evaluate erosion
hazard, and gauge the impact of forest fires. It's ideal for
irrigation system design, classroom instruction, erosion
hazard evaluation, burn severity studies, and many other
applications.
Drain Gauge 3 Features
Monitor Groundwater Leaching
Use the Drain Gauge G3 to determine the volume of water
and chemicals draining from the vadose zone into
groundwater.
Identify Contamination
The one-and-a-half meter tall Drain Gauge is buried directly
in the ground to measure flow rate in unsaturated soils and
collect soil water samples for chemical analysis. Water
samples can be collected easily through a surface port to
analyze for chemicals, fertilizers, and other contaminants.
Measure Deep Percolation Accurately
One of the challenges with lysimeter measurements is that
water tends to flow around receptacles buried in the
ground. The drain gauge uses an ingenious duct and wick
design to apply a constant tension and keep the flow rate
within the gauge equivalent to the flow rate in the
surrounding soil.
Made from Non-reactive Materials
The Drain Gauge is constructed from inert materials, so
chemicals won’t react with the tube, the sensors, or the
collection reservoir.scientists and technicians have used the
Mini Disk Infiltrometer to design irrigation systems,
demonstrate hydraulic conductivity, evaluate erosion
hazard, and gauge the impact of forest fires. It’s ideal for
irrigation system design, classroom instruction, erosion
hazard evaluation, burn severity studies, and many other
applications.
Customize the Drain Gauge for Your Applications
The Drain Gauge G3 has two available materials for the
divergence control tube:
Stainless steel for collecting an undisturbed
monolith
PVC for collecting a repacked monolith
Enabling better global research outcomes in soil, plant & environmental monitoring.
www.ictinternational.com : sales@ictinternational.com.au : +612 6772 6770
G-3 Drain Gauge - PVC
The Drain Gauge G3 can be used with or without the
electronic sensor.
With the non-sensored option, the user can make
manual measurements of drainage.
With the sensored option, flux rate, electrical
conductivity, and temperature are constantly
monitored.
The sensor can easily be added to an already
installed collection unit.
Benefits
Replace your sensor easily without having to dig up
the entire drain gauge.
Completely sealed system protects from high water
tables
Larger sampling volume allows for more accurate
analysis.
Integrated EC sensor allows you to monitor when
solute fluxes occur.
Limits
No overflow port so water must be sampled
periodically
Stainless Steel DCT not suitable for heavy metals
Enabling better global research outcomes in soil, plant & environmental monitoring.
www.ictinternational.com : sales@ictinternational.com.au : +612 6772 6770
G-3 Drain Gauge - PVC
Specifications
DIMENSIONS:
Total Length: 147 cm
DCT length: 63.5 cm
DCT (Inside) Diameter: 25.4 cm
Reservoir Length: 81.3 cm
Reservoir (outside) Diameter: 11.5 cm
Access Tube Length: 180 cm standard, customizable
Access Tube, Outside Diameter: 6.0 cm (2” schedule 40 PVC)
Sample Evacuation Tube: 1.27 cm OD X 0.79 cm ID X 5 m
length (Standard)
Mass: 20 kg with Stainless Steel DCT, 14 kg with PVC DCT
RANGE:
Drainage: Water Depth: 0 to 3.5 m
Electrical Conductivity: 0 to 120 dS/m
Temperature: -40 to 50°C
RESOLUTION:
Drainage: 0.2 mm
Water Depth: 1 mm
Electrical Conductivity: 0.001 dS/m
Temperature: 0.1°C
ACCURACY:
Drainage: + 1.4 mm
Water Depth: + 0.2 % of full scale @ 20 °C
Electrical Conductivity: + 0.01 dS/m or + 10 % (whichever is
greater)
Temperature: + 1°C
SUCTION AT INTAKE:
110 cm (11 kPa)
SOLUTION COLLECTION CAPACITY:
3.1 L (6.1 cm of drainage) to bottom of wick. Additional 5.1 L
(10 cm of drainage) of reserve capacity in wick chamber
SOLUTION COLLECTION SURFACE AREA:
507 cm2 (25.4 cm inside diameter)
WETTED MATERIAL:
DCT (standard): 304 Stainless Steel 11 gauge
DCT (optional intert material): PVC
Wick: dry fired fiberglass
Root Inhibitor: Treflan (BioBarrierTM), removable
Sample Evacuation Tube: Polyethylene
Hydraulic Bridge Material: Diatomaceous Earth (DE)
All Other Parts: PVC
OPERATING TEMPERATURE:
0 to 50°C (Pressure transducer cannot be allowed to freeze
while submersed.)
POWER REQUIREMENTS:
3.6 – 15 VDC, 0.03 mA quiescent, 0.5 mA during 300 ms
measurement
MEASUREMENT TIME:
300 ms (milliseconds)
OUTPUT:
Serial TTL, 3.6 Volts Levels or SDI-12
CONNECTOR TYPES:
3.5 mm (stereo) plug, or stripped & tinned lead wires (3)
CABLE LENGTH:
5 m standard; custom lengths available upon request
DATA LOGGER COMPATIBILITY (NOT EXCLUSIVE):
Decagon Em50 Series, ProCheck, Campbell Scientific
SOFTWARE COMPATIBILITY:
ECH2O Utility (rev 1.64+), DataTrac3 (rev 3.4+)
Enabling better global research outcomes in soil, plant & environmental monitoring.
www.ictinternational.com : sales@ictinternational.com.au : +612 6772 6770
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