MOISTRON ™

Sensore di umidità a microonde

GeneralitÀ

Range di umidità
Il sensore può misurare fino alla saturazione del materiale
Condizioni operative
  • Temperatura (Oper.): 0°C / 85°C
  • Temperatura (Stor.): -55°C / +155°C
  • Umidità (moisture): 0% / 100%.
Contenitore
  • Acciaio inox AISI-316;
  • Grado di protezione (DIN 40 050): IC IP 67.
  • Accoppiamento: ceramica
  • Anello di chiusura: acciaio temperato
Dimensioni
  • Diametro esterno: 75 mm
  • Lunghezza: 120 mm

Electrical Specifications:

Power Supply
24V ac / dc ±10%
Protection Earth available.
Power Consumption:3W max.
Analog Output

Selectable between:

  • 4-20mA: 3-wire connection topology; 750 Ω max measurement resistor ±0,1% resolution.
  • 0-5V / 0-10V: 10k max connectable load; ±0,1% resolution
Digital Output
  • Activated with programmable threshold on measured moisture
  • NPN output
  • 30Vmax output level; 200mA max output current.
  • Fused against overcurrents.
  • Max drop voltage: 1V (@ 200mA output current)
Serial Interfaces

Selectable between:

  • RS-232:
    • Selectable baud rate (1200, 2400, 4800, 9600 and 19600 baud);
    • Asynchronous serial protocol studied for each moisture measurement application.
  • RS-485:
    • Selectable baud-rate (1200, 2400, 4800, 9600 and 19600 baud).
    • Protection diodes against voltage surges between different point of RS-485 network.
    • 120 Ohm termination resistor if required
    • Pull-up and pull-down resistor for proper serial lines biasing in idle mode (if required).
    • Network addressing available for multi-point measurements.
    • Asynchronous serial protocol defined for each moisture measurement application
External connectors
  • J1: Standard M12 4 poles plug:
    • Pole 1: Protection Earth
    • Pole 2: + 24Vdc (or 24V ac)
    • Pole 3: -24Vdc (or 24V ac)
    • Pole 4: Not Used.
  • J2: Standard M2 4 poles plug
    Digital/Analog and (Serial Interfaces) outputs choices:
    • Pole 1: GND (GND)
    • Pole 2: Digital out-NPN (RX)
    • Pole 3: Digital out-V/A (TX)
    • Pole 4: Not used (Not-used)