HD48…is available with active 4…20mA or 0…10V analogue output, or with the only RS485 MODBUS-RTU output.
HD49… is available with passive 4..20mA output. Versions with analogue output provide a signal suitable to be transmitted to a remote display, a recorder or a PLC. The versions with RS485 output are suitable for connection to a PC or a PLC.
Probe operating temperature: 0…+80°C. Also available with LCD (option L).
Working temperature of the electronics: -5°C…+60°C.
Power supply: 16…40Vdc or 24Vac for models HD48…, 12…40Vdc for models HD49…
Upon request, HD48… can be provided for 90…240Vac power supply, but only in 80x120mm housing, height 56mm, without display.
The HD3901 leaf wetness sensor detects the presence of condensation on its sensitive surface and has been designed to reproduce in an extremely accurate way the thermodynamic behaviour of a leaf. The leaf wetness degree is a basic information in the agricultural and floriculture fields to determine the most appropriate phytosanitary treatment to prevent mould and fungal infections in general that can affect the plants and crops in the presence
of condensation on the leaves.
HD9408.3B is a barometric transmitter that uses a piezoresistive high accuracy and temperature-compensated sensor. It allows to measure the atmospheric pressure in the range from 500…1200 hPa, providing extreme accuracy and time stability, with excellent repeatability, low hysteresis, and excellent temperature behavior.