Modbus Temperatur Sensors

Digital communication is less susceptible to noise and signal loss. In addition, several sensors and devices can be connected with only one connection line (RS-485). This simplifies installation and saves costs. By the way, this also applies to PLCs: most PLCs are already equipped with a serial RS485 interface, so you no longer need analogue input cards.

Using Modbus, transmitters and sensors can be configured, monitored and diagnosed remotely. This is a significant advantage over analogue transmitters.

The devices can also transmit additional information such as device status, error codes or any calibration data. And of course a second measured value, such as with our combined temperature and humidity sensor.

Yes, our Modbus RTU sensors and transmitters are equipped with four LEDs so that the status of the devices can be seen at all times.

Our Modbus RTU temperature sensors and transmitters are available in three different designs:

As a pure Modbus RTU transmitter with M12 connectors on both sides. This transmitter is compatible with all Pt100 / Pt1000 temperature sensors with M12 connectors. If you need a matching sensor, we recommend our sheathed resistance thermometers.

As screw-in sensor with integrated Modbus RTU transmitter. The screw-in sensor is a good choice if you want to insert the sensor into the process using an existing thread.

As a sheathed resistance thermometer with integrated Modbus RTU transmitter. The sheathed probe is a good solution for particularly narrow installation spaces because it is flexible. It is also extremely robust and has a very wide temperature range.

The transmitters and probes can be configured using the dedicated configuration kit EVOPLATFORM SET. The kit contains a USB adapter and software for Windows PC.

Generally speaking, you can measure very high temperatures of up to 500 °C. Our most temperature resistant Modbus probe is the version with mineral insulated probe. Bear in mind that you must choose a sufficiently long sensor to keep the electronics and the plastic away from the heat. The PCB as the most temperature-sensitive component can withstand temperatures of up to 85 °C. Our experts are happy to advise you on choosing the right length!

We manufacture our Modbus RTU temperature sensors at our headquarters in Cremona, Italy. For you, this means short distances, uncomplicated logistics and fast delivery times

Regarding the response time of a sensor, the following rule of thumb applies: If you double the diameter, you quadruple the response time. So choose the diameter wisely!

As with all temperature sensors, the immersion length should be at least 5x the diameter of the sensor to avoid thermal bridges.