HD48- RH & Temperature Active Transmitters
Humidity, Temperature
Temperature, relative humidity and dew point transmitters available with active 4÷20 mA or 0÷10 V analogue output, or with RS485 MODBUS-RTU output only
HD48 transmitters are designed for temperature and humidity control in conditioning and ventilation applications (HVAC/BEMS) in the following sectors: pharmacy, museums, clean rooms, ventilation ducts, industrial and civil sectors, crowded places, canteens, auditoria, gyms, high-density farms, greenhouses, etc.
Description
The models of the HD48… series are active transmitters and accept both direct and 24Vac alternating power supply; they have standard current (4…20mA) or voltage (0…10V) outputs, or a serial RS485 output*, depending on the model.
Available models:
- horizontal probe for duct mounting (TO),
- vertical probe for wall mounting (TV),
- probe with 2or 3 m cable (TC),
- fixed contact Pt100 probe for solar panel (TFP)
For the TO and TC versions, two probe temperature ranges are possible: standard -20…+80 °C and extended -40…+150 °C (option E). Temperature range of the thin film 1/3 DIN Pt100 probe for solar panel: -40…+85 °C.
Also available with LCD display (option L). Electronics working temperature: -20,,,+60 °C.
For Passive Transmitters, please refer to the HD49… series.
Technical Specification
| Protection Class: | IP65 |
|---|---|
| Power supply: | HD48… 24 Vac ± 10% or 18…40 Vdc HD48V… 24 Vac ± 10% or 18…40 Vdc HD48S… 12…30 Vdc |
| Power consumption: | HD48… 20 mA @ 24 Vdc and Iout=12 mA HD48V… 4 mA @ 24 Vdc HD48S… 2 mA @ 24 Vdc |
| connections: | PG9 cable gland |
| Connection to PC: | • RS232 serial port • RS485 serial port (for HD48S…). • USB port with optional adapters |
| Instrument Temperature/RH: | -20…+60 °C / 0…95 %RH |
| Storage temperature: | -20…+80 °C |
| Materials: | • housing: ABS • probe: PBT (TV) or Inox (TC/TO) with stainless steel grid (standard) or PTFE (option E) filter |
| Materials: | • housing: ABS • probe: PBT (TV) or Inox (TC/TO) with stainless steel grid (standard) or PTFE (option E) filter |
| Weight: | from 120 g approx. to 900 g approx. (depending on the model) |
