TW/NG-1 2 Wire Irrigation Decoder

2Wire Data Sheet 2021

The TW/NG-1 family brings a host of new features to existing two-wire irrigation decoder technology.

PERFORMANCE

• Long distances
• Many stations on at the same time
• Greater resistance to interference.
• Positive acknowledgement of commands received
• No exposed DC anywhere, tolerant to earth leakage in wiring
• Decoder and solenoid can be separated by up to 1000m
• High lightning immunity, backed by a warranty
• 5-year warranty

INSTALLATION

• Decoder programmed and tested using an App in an Android
  phone with NFC
• Tamper protection
• Record of who last altered the decoder’s data, date and time.
• Decoder tested using the App. Voltage at the decoder displayed
• Decoder can hold its geo-location and textual notes
• Decoder interface retrieves data from all decoders into a database
• Database can be loaded into a service engineer’s phone
• Stored geo-location used to give directions to the decoder, using
  Google Maps.

DECODERS WITH BUILT-IN SENSING

• TW/NG-1-CC Valve on/off plus contact closure and counting
  • Measures a volt-free contact open or closed. Used with
    the new generation of valves that sense correct opening or
  • Counts contact closures (de-bounced) up to 4 per second.
  • Used with a flow meter or tipping bucket rain gauge
• TW/NG-1-420 Valve on/off plus 4-20mA sensor reading
  • Loop excitation 24VDC up to 25mA
  • Variable pause for sensor warm-up time
  • 12 bit resolution, 0.2% Accuracy
  • Used with pressure or lake level sensing
  • Used with flow meters with 4-20mA output
• TW/NG-1-2.5 Valve on/off plus 0-2.5V sensor reading
  • Sensor power 24VDC up to 25mA
  • Variable sensor warm-up delay
  • 12 bit resolution, 0.2% Accuracy
  • Used with analog output moisture sensors, etc.

To order or for any enquiry please contact us by email or by phone.

Email: sales@twl-irrigation.com

Tel: 01346 531193