Digital piezometers - d-Piezo
YieldPoint's d-Piezo is a digital piezometer that integrates a MEMS pressure transducer with a micro-controller to measure water pressure and depth, outputting readings directly in kPa and degrees Celsius over an RS485 digital signal. Each instrument carries a unique ID and can be run over long cable distances without amplification.
- Range
- 0-1000 kPa (unvented)
- Output
- RS485, transmitted to a data logger up to 500 m over 2 x twisted pair
- Resolution
- 0.01 kPa; approx. 1 mm of water over 100 m range
Overview
In detail
Measurement
The d-Piezo measures pressure from 0 to 1000 kPa (unvented) with 0.01 kPa resolution, equivalent to roughly 1 mm of water over a 100 m range. Temperature is measured from -35°C to +85°C with 0.1°C resolution.
Connectivity
The output signal is transmitted as an RS485 digital signal at 9600 bits/s (9600,9,n,1), ASCII encoded, to a data logger up to 500 m away over two twisted pairs. RS485 signals tolerate wet conditions and can be transmitted up to 1000 m without amplification; each instrument carries a unique ID so arrays of d-Piezos can be daisy-chained and remotely monitored.
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Specifications
Technical specifications
- Range
- 0-1000 kPa (unvented)
- Resolution
- 0.01 kPa; approx. 1 mm of water over 100 m range
- Operating temperature
- -35°C to +85°C (0.1°C resolution)
- Output
- RS485, transmitted to a data logger up to 500 m over 2 x twisted pair
- Communication
- 9600 bits/s (9600,9,n,1), ASCII encoded, unique ID per instrument
Related
Often specified alongside
Geosystems
Vibrating Wire Strain Gauge SM-5
- Range
- 3000 µε
- Accuracy
- +/- 0.5% F.S.
- Temp
- −20 to +80°C
- Range
- 200 to 35,000 kPa (standard steps up to 35,000 kPa)
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