ECH2O EC-5
Tech Specs
TECHNICAL SPECIFICATIONS
Volumetric Water Content
Range
0 – 100 %
Resolution
0.001 m³/m³ VWC in mineral soils, 0.25% in growing media
Accuracy
Generic Calibration: ±0.03 m³/m³ typical in mineral soils that have solution EC <8 dS/m
Medium Specific Calibration: ±0.02 m³/m³ in any porous medium (± 2%)
Measurement Specifications
Measurement Volume
Communication Specifications
Output
10%–50% of excitation voltage (250–1,250 mV at 2,500 mV excitation)
Data Logger Compatibility
METER data loggers (ZL6, EM50/60 series, Em5b) or any data acquisition systems capable of switched 2.5–3.6 VDC excitation and single-ended voltage measurement at greater than or equal to 12-bit resolution.
NOTE: These calibration constants only apply to 2,500-mV excitation; use of these numbers with any other excitation voltage results in erroneous readings!
Physical Specifications
Dimensions
Length:Â 8.9 cm (3.50 in)
Width:Â 1.8 cm (0.71 in)
Height:Â 0.7 cm (0.28 in)
Prong Length
5.0 cm (1.97 in)
Operating Temperature Range
Minimum: -40.00 °C
Typical:Â NA
Maximum: 60.00 °C
NOTE:Â Sensors may be used at higher temperatures under certain conditions; contact Customer Support for assistance.
Cable Length
5 m (standard)
40 m (maximum custom cable length)
40 m (maximum custom cable length)
NOTE: Contact Customer Support if a nonstandard cable length is needed.
Connector Types
3.5-mm stereo plug connector or stripped and tinned wires
Electrical and Timing Characteristics
Supply Voltage (VIN to GND)
Minimum:Â 2.5 VDC at 10 mA
Typical:Â NA
Maximum:Â 3.6 VDC at 10 mA
Measurement Duration
Maximum:Â 10 ms
Other
Compliance
EM ISO/IEC 17050:2010 (CE Mark)
2014/30/EU
2011/65/EU
EN61326-1:2013
EN50581:2012
2014/30/EU
2011/65/EU
EN61326-1:2013
EN50581:2012
GSA
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