Sentera – your partner in HVAC control solutions
FAQs related HVAC control solutions
General questions about Sentera devices
What is indoor air quality or IAQ?
What does ‘IP protection’ mean?
What is PI control?
What is a PWM signal?
What is a potentiometer?
What is a control switch for EC fans?
How to use a ventilation system during COVID-19?
How to connect a 0-10 Volt control signal?
What is a Common Ground?
What is the difference between VDC and VAC?
Modbus RTU – how to interconnect Sentera devices
How to adjust parameters of a Sentera device?
What is Modbus RTU communication?
What is PoM or Power over Modbus?
What cable to use for a Modbus network?
What is the maximum cable length for a Modbus RTU network?
What is the maximum current in a PoM network?
Can a Sentera device with Modbus RTU communication work stand alone?
How to restore the factory default settings of a Sentera device?
Can Sentera products communicate with non-Sentera products via Modbus RTU communication?
What is a Modbus Network Bus Terminator or NBT?
What should I pay attention to when creating a Modbus RTU network?
What is Baudrate in a Modbus RTU network?
Motor and fan related questions
What is a control signal?
What is the difference between an AC and EC motor?
How to regulate AC fan speed?
How to control EC fan speed?
Kick start versus Soft start - what is the difference?
Can I control multiple motors with one fan speed controller?
What motor insulation class is required in combination with a fan speed controller or VFD?
What is an electronic fan speed controller for AC motors?
What is a transformer fan speed controller for AC motors?
What is Ecodesign regulation EU 2019-1781?
What does IE2 mean for VFDs?
How to control ceiling fans with 3-speed motor?
How many EC fans can I control with a 0-10 Volt signal?
How do destratification fans work?
What type of fan speed controller should I choose?
How does an electric autotransformer work?
Sensors in an HVAC environment
How does an NDIR CO2 Sensor Work?
How to recalibrate a CO2 sensor?
Why to measure temperature and relative humidity?
What is relative humidity?
Why measure indoor temperature?
Why measure CO2?
Why to measure TVOC or indoor air quality?
Why measure CO in underground parking garages?
What is the difference between a transmitter, intelligent sensor and sensor controller?
Can I use a Sentera transmitter for agriculture or horticulture applications?
What is the difference between 3-wire and 4-wire connection?
How to measure air volume flow or air velocity?
What is dew point temperature?
How to interpret article codes of Sentera sensors?
Why is mechanical ventilation important in buildings?
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