Digital Display and Signal Conditioning Unit

Cao Digital Display

CAO is a range of display units including small display units (96x48 mm format) which receive different type of signals (mA, V, Ohm, thermocouple, Termoresistence). Some models are equipped with n.2 relay outputs in order to activate external devices using programmable thresholds. All models are equipped with optical led, it can be activate when the measurement is out from a programmable range.
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Wind alarm unit

It is used whenever the wind speed can damage the working of some systems like builder’s rotating crane and quay crane, construction sites, road networks, cable cars and chair-lifts protective covering for sport fields, etc. It shows the speed and the direction of the wind, and has two programmable set-points to activate alert and alarm systems; these systems are composed of a local optical indicator, a local acoustic buzzer and relays to activate remote systems.

Wind polar unit

It shows on digital display the instant and maximum wind speed value in knots, MPH, Km/H, m/sIt shows instant wind direction (alternately to max wind speed) and shows the wind direction on a polar display made by 36 led with the last 10 acquisitions information. It has 0-5 Vdc (and RS485, ASCII file) output for wind speed and direction. More units (up to 16 units) can be mounted together over a RS485 line.

First rain display and controller

First rain condition is the first 5 mm. of water rained in a given period of time. More than 5mm of rain it is treated as “further rain” condition. When connected to a rain gauge, informs through its relay about the rain condition status. Also, It shows on the display the total rain, the rain intensity and the duration of the rain event.

Modbus sensor box

Sensor conditioning unit to convert (Volt, Pt100 e Hz) signals into RS485 over RTU Modbus protocol. It can receive signals from different sensors on the market as: solar irradiance sensor, also pyranometers (configurable sensitivity value), temperature sensors (Pt100) and wind speed sensor (Hz).

Sensor transducer box

Signal conditioning unit to converter (Volt, Pt100, Thermocouples and Hz) signals into 4-20 mA. It can receive signals from different sensors on the market as: solar irradiance sensor, also pyranometers (configurable sensitivity value), temperature sensors (Pt100 and thermocouples) and wind speed sensor (Hz).