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SEN01 NTC
SEN01NTC

Temperature sensor with NTC sensor

  • Temperature measurement for underfloor heating, swimming pools or sanitary installations
  • Equipped with a 55 cm NTC sensor – ideal for hard-to-reach places
  • Bus-controlled and powered by Qbus
  • 4 thermostat modes: Heating, Boost, Cooling, and Over/Under Temperature Alarm.

The SEN01NTC is a temperature sensor on a 55cm cable. For installation in pipes or floors, both in dry and wet environments. This sensor is powered by the bus and can be used for temperature measurement in underfloor heating, swimming pools, ...

Frequently Asked Questions

  • How do you read an existing configuration?

    This is a completely different procedure depending on the type of controller.

    • For the CTD controllers this goes as follows:

    In the SMIII via "File" or "Utilities / Setup / SD card", click on "Recover QDB from SD".

    After confirmation you choose the name and location where the file should be saved. The zipped QDB file is then read from the SD card of the CTD and saved. With a positive answer to the question "Unzip and open restored QDB?", All data will then be immediately available. If the data you were still working on was not sent or saved, you will first receive a notification to do so.

     

    • For a CTL controller follow the following procedure:

    Because this controller does not yet have a large memory, only limited data can be recovered. Ao the names are abbreviated to 12 characters and serial numbers are not stored anywhere.

    The first step is therefore to type in ALL serial numbers via SMII via "File / Modules". These 6-digit serial numbers can be found on every module (DIN rail, switch, detector, etc.). For the SWC0x switches, an extra option was provided to have them send their serial number via “Search for modules”.

    When you then click on the "down arrow", you can read all this limited information.

  • Always use the latest software for configuration.

    It is always recommended to use the most recent version. This version supports the newest modules and resolves all known bugs.

    If, for example, you enter a serial number and the correct module information does not appear, you are likely not working with the most recent software.

    A newer version will always be able to open the older files (.QDB) without data loss.

    The latest version of the System Manager software, along with the user manual and version history, can be found in the knowledge center.

Control

Operations via Qbus Control

  • Thermostat
    • Thermostat Economy
    • Thermostat Comfort

    Through System Manager, you can assign a Thermostat output to any contact of this module. You can then easily control this thermostat with Qbus Control.

    At the bottom, you can choose a regime, which are a number of pre-set temperatures. You can also choose to set the temperature yourself by swiping up/down.

    On the left side, you see the measured temperature, on the right side the set one.

    With the graph symbol in the top right corner, you can view the historical data.

    • Thermostat 24h EN
    • Thermostat 30d EN
    • Thermostat 7d EN
    • 24 hours: Here you see the status of this I/O for the last 24 hours. The line shows you the trend of the measured temperature, the bars show the set temperature.
    • 7 days: Here you see the status of this I/O for the last 7 days. The line shows you the trend of the measured temperature,
    • 30 days: Here you see the status of this I/O for the last 30 days. The line shows you the trend of the measured temperature,

Technical info for installers

  • Function description

    The SEN01NTC features an onboard NTC temperature sensor on a wire approximately 55cm long. The measurable temperature range can be set within a 63.5°C range between -30°C and 93.5°C. This sensor can be used, for example, to measure water temperature. A thermostat output with the same properties as described above will also be created for the SEN01NTC.

    The SEN01T module is a bus-controlled and bus-powered module with a digital temperature sensor (SEN01T) or an NTC temperature sensor on a 55cm long wire (SEN01NTC). These SEN01T modules can be installed by the installer in cabinets, stairs, walls, etc. We also offer drilled Niko central plates with a specific bore for the SEN01T temperature sensor. For the installer or end user who prefers a fully finished sensor module, the SEN01T is available as a fully finished Lithoss switch.

    The temperature sensor on the SEN01T can be used as a thermostat to display the temperature in the respective space and control the heating accordingly. 

    Four different outputs are immediately generated by the System Manager when creating a thermostat output and can be used in any relay module:

    1.     Heating = the ambient temperature is lower than the temperature of the selected program, the heating output activates.

    2.     Turbo = the ambient temperature is lower than the temperature of the selected program by a value greater than a specified limit; the turbo output activates (boost).

    3.     Alarm = the ambient temperature is more or less than maximum or minimum temperature limits; the alarm output activates.

    4.     Cooling = the ambient temperature is too high, the cooling output activates.

    The hysteresis for the heating and cooling output can be set between 0.5°C and 5°C.

     

  • Technical specifications

    General Specifications: 

    • Power Supply: bus connection
    • Ambient Temperature: 

      Operating Temperature: 10°C to 50°C

      Storage Temperature: -10°C to 60°C

    • Maximum Humidity: 93%, no condensation
    • Bus Load: 8mA at nominal voltage 13.8V.
    • Maximum Installation Height: 2,000 meters.

    Physical Specifications: 

    • Enclosure: Plastic, encapsulated in resin
    • Protection Rating: IP20, EN 60529
    • Installation: direct on the bus
    • Dimensions (HxW): 30mm x 23mm
    • Weight: approximately 10 grams

    Electrical Protection: 

    • Bus: 13.8VDC low voltage
    • Compliant with EN 60950 – 1:2006 

    CE

    • Qbus declares that this product meets all applicable European directives and regulations.
    • The EU Declaration of Conformity is available upon simple request.
  • Sizing
    SEN01 NTC Dimensionering
  • Explanation of symbols
    Symbool Dubbele isollatie

    Equipment where protection against the risk of electric contact is not only based on basic insulation but also on additional protection such as double insulation or reinforced insulation. There is no possibility for grounding.

     

    Symbool Gevaar Aandachtig lezen

    Before connecting the device, it is mandatory to read the manual of the respective product. ISO7000-0434

    Symbool Gevaarlijke spanning

    Power supply connection (230V) to the power supply connector. IEC 60417-5036

    Symbool CE

    CE conformity. All declarations of conformity are available upon request.

  • Warranty provision

    Standard Warranty Period: 2 years from delivery date.

    The warranty is no longer valid if the module has been opened! 

    Defective modules should be sent without seal along with a description of the defect to our service department:

    QBUS N.V.

    Joseph Cardijnstraat 19

    9420 Erpe-Mere

    Belgium

    T +32 53 60 72 10

    F +32 53 60 72 19

    Email: support@qbus.be

     

General

  • Safety regulations

    Read the complete manual before installing and activating the module.

    ATTENTION

    • The module must be installed, started, and maintained by a certified electrical installer in accordance with the legal requirements of the country.
    • The module can be used for permanent installation in indoor dry locations.
    • The module must not be opened. The warranty will be void if the module is opened!

Installation and wiring

  • Installation

    Connect the bus cable to the back of the SEN01NTC. 

  • Power supply

    The SEN01NTC is powered via the bus.

Each modules has an unique serial number. By this number the System Manager recognizes the modules.

This is completely explained in our knowledge center.

This module can switch up to 4 I/O’s in the same way as the SEN01T.

But this module has a black NTC sensor as standard. If different, the parameters of this sensor can be entered at the top via the specified “B-value” or if available via the more accurate Steinhart-Hart method.

This temperature sensor can trigger up to 4 separate bistable I/O’s. Each test can be greater or less than a selected temperature. Minimum -27°C, Maximum 100°C with a resolution of 1°C

After entering the serial number or selecting the module, following screen appears:

Qbus System Manager III Manual Update 04 2025 pdf image 418