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New flowmeters, low consumption, according to the bubble bubble principle (self-cleaning), available :
HYDRO D1601: 1 meter water height (full scale)
HYDRO D1605: 5 meters water height (full scale)


Industrial sites, reservoirs, rivers, groundwater, wastewater treatment plants, environmental control, ...
Thanks to its compact compressed air generator, the HYDRO D1600 range measures the level by means of that of the injection pressure of a low air flow at the foot of the water column.
This pressure is applied to a silicon membrane sensor which delivers a signal proportional to the height of water upstream of the weir or of the contraction.
The level is then converted into flow by a "Q(H) curve" defined by a parametric formula or by a set of pairs of points (H,Q).
The measured level and the calculated flow are available in the form of an analog output, a serial copy, or from the SDI12, MODBUS, RTU or ASCII protocols.
  • Technical details

    It has the following elements and functions as standard :

    - Temperature compensation of the different measurements and outputs

    - Compensation of the water height measurement according to the different influence quantities

    - Provision of level measurement in the form of analog copy on a 4-20 mA or 0-10V output or digital message on SDI12 or RS232, RS485, USB, RTC, GSM,...

    - An RS232 type COM1 serial link for communication with a PC in terminal mode (for local configuration and operation), or in exchange with the HYDRO PC software for history operation according to a proprietary protocol

    - An RS232 or RS485 type COM2 link for digital copying of the measurement in ISP8 message format, in order to maintain upward compatibility with our old equipment (ALPHEE, DPN7)

    - A Human Machine Interface consisting of a 4-line LCD display of 20 alphanumeric characters and a 6-key touch keyboard

    - An order for 2 samplers

    - Alarm thresholds on programmable logic outputs

    It has as an option :

    - Modbus protocol on COM2 serial link when the ISP8 type message is not activated

    - “HYDROLOGIC current values” protocol on COM2 link when ISP8 or Modbus type messages are not used

    - A library (curves download): 71 standard HYDROLOGIC curves + 30 user curves per point + 20 user curves per formula

    - Associated measurements (pH, temperature, etc.)

    - An alert network - HYDROEXPRESS or HYDRO PC software for operation

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