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What is the maximum cable length for a Modbus RTU network?

For Modbus communication, the total cable length per segment must not exceed 1.000 m. (Total cable length = sum of the main network line and all branches). Here

What is a PWM signal?

PWM or Pulse Width Modulation (also known as “Pulse Duration Modulation” or PDM), is a control signal, comparable to an analogue 0-10 Volt or 0-20 mA signal. It

Can I use a Sentera transmitter for agriculture or horticulture applications?

Sentera has products for a wide range of applications. Agriculture is one of those. Sentera products in this category measure CO2, soil moisture, relative humid

What is a potentiometer?

A potentiometer is a device to generate a control signal. A potentiometer is an electronic component that allows you to vary the resistance in a circuit. It co

How to measure air volume flow or air velocity?

A balanced ventilation system supplies fresh air to the building while it extracts stale air from the building. To check whether there is sufficient ventilation

How to interpret article codes of Sentera sensors?

How to interpret article codes of Sentera sensors? The Sentera article codes follow a certain logic. Every character in the code stands for a characteristic of

What should I pay attention to when creating a Modbus RTU network?

What is (RS485) Modbus RTU communication? Modbus RTU is an open serial protocol derived from the master/slave architecture (now client/server) originally develo

What is a control signal?

A control signal is typically used to control an electronic device. This can be a fan speed controller, a damper actuator, an EC fan, etc. An example: Telling a

What are the key components of an air handling unit?

The main parts of an air-handling unit (AHU) are shown on the drawing below. This picture will be used as an example; however, many other different combinations
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