- Overview
- Specification
- Accessories
- Product Resources How to Buy
- Mimics the wetness state of a real leaf
- Measurement range: 0% to 100%
- Measurement response: 1 sec
- SDI-12 Standard V1.3
- Plug and Play
- 6 – 16V supply voltage
- Less than 40µA idle current
- Operating Temperature Range: –40°C to +80°C
The Tekbox leaf wetness sensor mimics the wetness state of a real leaf. The measurement value is proportional to the percentage of the sensor surface covered with water.
The sensor is equipped with a SDI-12 interface for measurement and calibration.
In case of a standalone application, a built-in temperature sensor can be queried for air temperature measurement. It is however no replacement for a dedicated air temperature sensor / radiation shield set up.
The sensor is ideal for SDI-12 agricultural yield applications.
Specification
| Measurement range: | 0 to 100% |
| Measurement principle: | capacitive measurement, PLL |
| Measurement response: | 1 sec |
| Operating Temperature Range: | - 40°C to + 80°C |
| Current consumption: | active 8mA (for 1 second); idle 30μA |
| Standard cable length: | 3m; any other length upon requirement |
Accessories
Hardware
Main components and software
Mountings and enclosures
Installation accessories
Cables and networks
Remote communications
Spares and consumables
Power options
Other
Product Resources
Manuals
- Tekbox Leaf Wetness Sensor Manual 293 KBDownloadFilename: Tekbox_Leaf_Wetness_Sensor_Manual
FAQs
- Setting up an M12 cable network to ensure a waterproof and secure connection.
Question
What is the best practice for setting up a M12 cable network to ensure a waterproof and secure connection..
Answer
It applies to:
GP2 for SDI-12 and logger networks.
Celora for SDI-12 networks.
All sensors with M12 connector cables.Examples of SDI-12 network and GP2 logger networks:
DO
When connecting multiple cables and T-piece together, it is essential that any M12 connector is tightened sufficiently:
• Ensure internal connector O-ring and opposite sealing face are free from dirt.
• Tighten the connector thumbscrews as much as you can by hand or use a torque driver set to 1Nm to be sure. See video:We recommend the Weidmuller “1900021000” torque driver:
• This will save lots of painstaking troubleshooting hours if you do have a loose connection and give you piece of mind that all connectors are correctly tightened.
• Untightened connectors can come undone and let water into the cable network which can damage wire cores and cause erroneous readings.
Connect in the office first and then transfer the network to the field. This way, you’re not trying to do it in unpleasant weather and the time pressures are off.
DON’T
Use duct tape. This will hold water against the connector. If tightened correctly, the connector will seal and hold.
Technical Notes
- LWS-SDI-12 application note 106 KBDownloadFilename: LWS-SDI-12_application_note