Tension Sensor TSR

5 Tension ranges available
from 0 - 10 N up to 0 - 200 N

Online tension sensor for flexible material, as wires, thin ropes and cable up to 10 mm Ø, as well as linear materials up to 10 mm width

Large, hardened guide rollers for minimized material deflection with 29.5 mm or 70 mm groove Ø

Stationary electronic tension sensor, single roller system, for mounting at an existing deflection pulley

Special Features

Tension sensor TSR with integrated measuring amplifier and high accuracy 1 % FS

Sensor for installation at an existing deflection pulley; the in- and outcoming angle β has to be 20° or more

Ball-bearing mounted steel or aluminium guide rollers 29.5 mm and 70 mm groove Ø,
– V-grooved (for material with max. 54 mm Ø)
– U-grooved (for material with 3 up to 10 mm Ø)
– tape grooved (for material with max. width of 10 mm)

Easy mounting of customer provided rollers – please contact us!

Various output signals are available
– analog: 0 – 1 V (standard), 0 – 10 V (optional)
– current: 4 – 20 mA (optional)
– analog DMS: mV/V (optional)

Easy installation, even afterwards, on existing machines

Easy calibration to customized material by operator – zero and gain calibration is required

Measuring principle – loadcell with hight quality strain gauge bridge

Tension sensor with mechanical overload protection

Standard Features

Tension sensor with rugged aluminium housing

Required 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

Lern more about the different tension measuring systems

You are not sure, which system is right for, or where the differences are? Here we explain it for you.

Available Models

ModelNominal Load
TSR-10N0 – 10 N
TSR-20N0 – 20 N
TSR-50N0 – 50 N
TSR-100N0 – 100 N
TSR-200N0 – 200 N

Anzeige SC-PM und Vorverstärker SCV-1For the tension sensor TSR we offer different display units for one or more sensors, as well as strain gauge amplifier.

Find further information at display units and amplifier


Calibration:According to SCHMIDT factory procedure
Accuracy:±1 % full scale and ±1 digit
other calibration material:
±3 % full scale 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:Analog
Temperature drift:Less than ±0.05 % full scale/ºC
Output signal:Standard: 0 – 1 V DC (analog) impedance: ≥ 5 kΩ
Option: 0 – 10 V DC (analog), 4 – 20 mA (current) or mV/V (DMS)
Damping (fg):Standard: 30 Hz (other values on request)
Temperature range:10 – 45 ºC
Air humidity:85 % RH, max.
Power supply:+15…24 V DC, max. 50 mA regulated
Code A10: max. +5 V DC, max. 20 mA regulated
Housing material:Aluminium
Dimensions:See dimensions
Weight, net (gross):Approx. 250 g (approx. 400 g)

Specifications subject to change without notice!

Tension sensor TSR can be easily mounted everywhere a deviating point respectively a guide roller is built in at the machine. These places can be used as measuring point, assumed the in and outgoing angle is constant.

Determining the Tension Range

Bestimmung des Messbereiches bei Einrollen-Sensoren Typ TSR

The tension range can be calculated for every wrapping angle with this formula:

Formular to determine the force of single roller tension senorsWhen selecting the nominal measurement force it is necessary to take into account the weight of the guide roll and raise the nominal load respectively, particularly when working with small nominal forces.

Guide Rollers

Order-CodeLine Speed vmax. … m/minRoller Material
Standard4000Hardened steel (max. Ø 4 mm)
Code R14000Hard chrome-plated steel (radius R5)
Code F4000Hard-coated aluminium
Code FB4000Tempered steel
Code B62000Hardened steel, width 6 mm
Code B102000Hardened steel, width 10 mm

Accessories (optional)

  1. Software Tension Inspect 3


    For displaying and saving readings on a PC (Win XP and higher; 32 bit and 64 bit). Only for sensors with RS-232 output.
    – Real-time reading
    – The readings are also shown in a X-Y- diagram (time/date-tension)
    – For data analysing the buffered diagram can be zoomed and scaled
    – Recording of the buffered readings as CSV-file (on user request)
    – Download of values to Excel
    Order number: SW-TI3

  2. Plug suitable for sensors of TS series,
    cable outlet 3.5 – 6 mm
    Order number: E10061

  3. Connecting Cable with 2 diode plugs

    Connecting cable with 2 diode plugs, for analog output and voltage signal.
    For connecting the TS sensor to the display unit SCD-1.
    Order number: EK0603, Length 3 m
    Order number: EK0605, Length 5 m
    Order number: EK0610, Length 10 m

  4. Connecting Cable with 1 diode plug and open ends

    Connecting cable with 1 diode plug and open ends, for analog output and current signal.
    For connecting sensors of TS series to the display unit SC-PM.
    Order number: EK0612, Length 3 m
    Order number: EK0614, Length 5 m
    Order number: EK0615, Length 10 m

  5. RS-232 Connecting Cable

    For tension sensor TSR with RS-232 interface – Code RS 232:
    This cable is needed to connect the sensor to a PC or an analog signal processing unit; AC adapter for 100 – 240 V power supply is included, 3 m long
    Order number: EK0640

  6. RS-232 Extension Cable


    Connecting cable for RS-232 connecting cable EK0640, length 2 m
    Order number: EK0643

Output Signal

Calibration Report

title page calibration certificate 3.1Inspection Certificate 3.1 according DIN EN 10204
including a calibration report is optional available.



Dimensions of tension sensor TSR to download:
Delivery Includes

Tension sensor TSR 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

How To Order

To order tension sensor TSR:

Please indicate the complete order number, e. g.:

Model with tension rangeCode output signal (if not standard)Code guide roller (if not standard)Complete Order No.

Instruction Manual

Download the instruction manual of tension sensor TSR and TSR with RS 232 output.

If you want to get a quote or want to place an order please contact us.

+49 (0)8638 9410-0

+49 (0)8638 4825