SDI-12 converter for analog signals
ECOMATIK dendrometers and temperature sensors (e.g. the LAT-B3) are supplied with a standard analog voltage output, making them compatible with a wide range of commercially available data loggers equipped with suitable analog input channels.
ECOMATIK Analog-to-SDI-12 Converter offers a convenient solution for applications where analog input channels are unavailable, limited in number, or where available analog input channels do not provide sufficient resolution and accuracy required for high-precision measurements.
The converter translates the analog voltage signal of the connected sensor into a digital SDI-12 signal (SDI-12 Version 1.3). It can also be used with third-party sensors, as long as they operate with 2.5 V excitation voltage and current draw is not more than 5 mA.
The converter is available in two versions: integrated and stand-alone:
The integrated version is factory-installed in the sensor cable and pre-configured for the respective sensor. Measurement values are output in µm for dendrometers and in °C for the LAT-B3 and other ECOMATIK temperature sensors.
The stand-alone version is equipped with a terminal block, allowing users to connect ECOMATIK dendrometers, ECOMATIK temperature sensors, or compatible third-party sensors.
Advantages
- The SDI-12-enabled measurement system used does not require its own analog input channels.
- The converter is optimized for measurements with our analog precision sensors and delivers highly accurate measurement data.
- The converter converts analog sensor signals directly into the corresponding physical unit (e.g. µm or °C). In the cable-integrated version, measurement values are output directly in the correct unit thanks to factory pre-configuration.
- In the stand-alone version, the converter provides two separate analog input channels.
- The operation of a larger number of sensors on a measurement system with only a single SDI-12 input channel is possible via the SDI-12 bus system.
- Wide supply voltage range from 3.6 to 24 V DC.
Limits
- Requires an SDI-12-capable measurement system for operation.
- The total SDI-12 bus length must not exceed 400 m.
- When multiple SDI-12 converters are used on the same bus, individual addresses must be assigned manually.
- In the stand-alone version, the measurement mode and conversion parameters must be configured manually.
Technical data
Sensor protocol | SDI-12 Version 1.3 |
Power supply voltage | 3.6 V to 24 V DC |
Warming up duration | 700 ms |
Power consumption | Sleep: 0.13 mA @ 5 V |
Noise-free resolution | 17 bits |
Channels | 2 |
Sensor input type | Single ended |
Supported SDI-12 commands | aM!, aMC!, aC!, aCC!, aD0!, aI!, aV!, ?!, aAb! (a, b = address) and extended SDI commands |
Cable assignment | Brown: Power supply 3.6–24 V DC |
Protection | Integrated: waterproof |
Size / Weight | Integrated: Ø 17 mm, L 123 mm (without cable) |
Cable length | Integrated version: standard 5 m (cable extension tested up to 100 m) |
Accessories & Compatible Products:
Compatible Sensors:
- Dendrometer (all models)
- Temperature sensors (T-series)
- Leaf sensors (LAT-series)
General information on order processing
Thank you for your interest in our products and services! Here you will find important information about the ordering process:
To our international customers: Please note, we ship worldwide! If we do not currently have a listed distributor in your country (a list can be found here) , please feel free to contact us directly.
Assessment of your needs
With your consideration and input, we determine which of our products best meet your needs. We are also happy to design fully-integrated measuring stations (plant, climate, soil sensors), including an independent power supply and mobile data transmission, depending on your requirements.
Do you require our assistance before placing an order?
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Are you already familiar with our products and know exactly what you need?
Perfect, then just write us an email! In your order, please state the diameter of your measuring objects in addition to the required cable lengths.