Tension Sensor FSP-422

5 tension ranges from 0 - 50 cN up to 0 - 1000 cN

Stationary electronic tension sensors with non-rotating ceramic pins for threads and fibres

Max. line speed 6000 m/min

Tension meter is available with digital output for data processing with PC

Special Features

  • Universal mounting possibility - easy to install: Housing mounting or cylindrical hole mounting (mounting cut out: longhole R 19 mm, length 54 mm)
Mounting drawing tension sensor FSP-422
  • Non-rotating, exchangeable ceramic pins for line speed up to max. 6000 m/min
  • Tension sensor with integrated microprocessor controlled measuring amplifier
  • Digital output signal (RS 422) for connecting to a PC by using an adapter (RS 422 - RS 232)
  • Can be connected to PLC controls with digital input
  • Up to max. 32 sensors may be connected in one line
  • Each sensor can individually be addressed and set up
  • Simple connection to BUS-Systems using gateways
  • Easy adjustment to customised material by operator
  • Tension sensor with mechanical overload protection
  • Control lamp shows operative mode availability
  • The sensores are equipped with RS 422 interface. All sensors can be easily connected to a PC with COM interface. Therefore is a RS 422 - RS 232 interface converter, necessary available as accessory.

    Standard Features

    • Tension sensor with Aluminium housing
    • Power supply +15...24 V DC (regulated)
    • Certificate of Compliance with the order 2.1 according EN 10204 is included
    • Optionally available: Inspection Certificate 3.1 according EN 10204 with calibration report

    Available Models

    Head Width*
    SCHMIDT Calibration**
    with running filament
    approx. 300 m/min
    FSP-50-4220 - 5064PA: 0.12 mm
    FSP-100-4220 - 10064PA: 0.12 mm
    FSP-200-4220 - 20064PA: 0.12 mm
    FSP-500-4220 - 50064PA: 0.20 mm
    FSP-1000-4220 - 100064PA: 0.30 mm

    Other tension ranges and measuring head widths available on request.
    Other measuring units available, such as g or kg.
    * Outer dimensions of front plate
    ** Suitable for 95 % of applications PA = Polyamide Monofilament

    Calibration to customized material:
    If process material differs significantly from the SCHMIDT calibration material in diameter, rigidity or shape, special calibration using customer supplied samples is recommended. For this purpose a material sample of about 5 m should be supplied.

    Guide Pins

    Line Speed
    Pin Material
    Standard6000Oxid ceramic 5.2 mm

    Click the order-code, to get picture and drawing of the guide pins

    Spare Rollers


    Output signal: digital RS 422
    Up to 200 readings can be transfered per second.
    (internal sampling rate max. 57600 times/sec)

    Click picture for more information

    Accessories (optional)

    Tension Inspect 3-XX

    Software for sensors with digital output signal for displaying and saving readings on a PC (Win XP and higher; 32 Bit and 64 Bit) Up to 32 sensors can be connected and displayed.

    Click picture for more information


    From RS 422 to RS 232 with terminal strip
    Order number: EBK800

    Click picture form more information

    Connecting Cable

    Cat 5 cable with open ends for RS 422/RS 232 converter and power supply, Length 3 m
    Order number: EK0715

    Click picture for more information

    Connecting Cable

    Cat 5 cable for series connection of FS sensors, Length 3 m
    Order number: EK0711

    Click picture for more information

    Connecting Cable

    For connecting EBG-800 converter to PC, Length 2 m
    Order number: EK0643

    Click picture for more information

    Calibration Report (optional)

    Calibration Report

    Inspection Certificate 3.1 according DIN EN 10204 including a calibration report is optional available

    Click picture for more information

    Delivery Includes

    Tension sensor with transport packaging, operating instruction in german or english (as requested), Certificate of Compliance with the order 2.1 according EN 10204 free of charge


    Dimensions For PDF-file please
    click picture


    Calibration:According to SCHMIDT factory procedure
    Accuracy:1 % full scale and 1 digit or better
    other calibration material:
    3 % full scale and 1 digit or better
    Overload protection:100 % of tension range
    Measuring principle:Strain gauge bridge
    Measuring roller deflection:Max. 0.5 mm
    Natural frequency:Approx. 500 Hz, depending on tension range
    Signal processing:Digital RS 422
    Communication frequency:200 readings/s
    Temperature drift:Less than 0.05 % full scale/C
    Output signal:Standard: RS 422
    Temperature range:10 - 45 C
    Air humidity:85 % RH, max.
    Power supply:+15...24 V DC, 50 mA (regulated)
    Dimensions:See dimensions above
    Weight net (gross):Approx. 320 g (approx. 420 g)

    Specifications subject to change without notice!



    New Tension Meter


    With one click you can download the information sheet for our new tension sensor.


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