Tension Meter MST

3 Tension ranges form 1 - 500 cN up to 1 - 2000 cN

Electronic yarn tension meter with motorized take-up fixture for measuring and adjusting the tension of sewing machines to get best and highest quality stitched seams. Therefore e. g. yarn breaks can be adjusted under constant conditions (speed of the thread).
Tension meter to control the tension at sewing machines as well as the take-off tension of shuttles. 

Special Features

  • Yarn tension meter with tension range up to 2000 cN
  • Integrated electronic tension meter ET series
  • Storage of last, average, MAX MIN, PEAK-MAX, PEAK-MIN values as well as statistical analysis (average value) during a user-selected periode
  • Motorized take-up fixture to have constant speed of the thread 12 m/min
  • Special fixture to determine shuttle tension
  • Vacuum base for positioning the unit on the work plate when tension is measured at the sewing machine
tension meter MST-500 with sewing machine
  • Micropocessor technology with high steadiness
  • Easy to operate
  • Optionally available: Inspection Certificate 3.1 according EN 10204 with calibration report

Standard Features

  • Battery or mains operation (MST-2000 only mains operation)
  • Zero setting using a button before starting measuring
  • Changeable units cN and g
  • Output signal: analog 0 - 2 V DC
                           digital RS 232
General Information:
Besides strength and the kind of stitch the tension of the upper and under thread is important for the solidity and the image of the seam. Tension determines the stitching length.
seam with wrong thread tension seam with right thread tension
Too much threat results in
not sufficient linkage of the
threat with the used material
Seam with correct adjus-
ted thread tension


Available Models

ModelTension RangeSCHMIDT Calibration*
MST-5001 up to 500 cNPA: 0.20 mm
MST-10001 up to 1000 cNPA: 0.30 mm
MST-20001 up to 2000 cNPA: 0.50 mm
* Suitable for 95 % of applications - PA = Polyamide Monofilament

Standard Accessories

Vacuum Base

For fast, save placing the measuring device at the working base beside the sewing machine. The tension meter can be horizontal positioned in exactly measurement position.

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AC Adapter

12 V AC, 230 V AC (standard)

12 V AC, 115 V AC (optional, please request when you order)

Accessories (optional)

Tension Inspect 3

For displaying and saving readings on a PC (Win XP and higher; 32 bit and 64 bit)
Order number: SW-TI3

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Connecting Cable

for analog output
Order number: ETX-CC

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Connecting Cable

for RS 232 output
Order number: ETX-CA

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Order number: K99905
Adjustable height for measuring position above working plate 170 to 210 mm

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Calibration Report (optional)

Calibration Report

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

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Delivery Includes

Tension sensor with transport packaging, vacuum base, battery, AC-Adapter 230 V (option 115 V) and operating instruction in german or english (as requested)


Dimensions For PDF-file please
click picture


Calibration:According to SCHMIDT factory procedure
Accuracy:0,5 % from measuring value 1 digit or better
Overrange:10 % full scale, without accuracy guarantee
Overload protection:200 %
Measuring frequency:Max. 5 kHz
Damping:Moving averaging
Display:4 digit, 11 mm high
Display update time:2 times/s
Memory:Last, average, MAX, MIN, PEAK-MAX, PEAK-MIN
Output signal:Analog: 0 - 2 V DC, linearized, converter frequency 100 Hz
Digital: RS 232 (19200, 8, N, 1)
Vacuum base:Adjustable height for measuring position above working plate 120 to 220 mm
Temperature range:10 - 45 C
Air humidity:85 % RH, max.
Power supply:9 V E-Block, e. g. Longlife 9 V Lithium (approx. 1 h during motor operation or
80 h during operation tension meter)
or 12 V AC Adapter for 230 V AC, option 115 V AC
Housing material:Aluminium profile
Dimensions:See dimensions above
Weight, net (gross):Approx. 780 g (2000 g)

Specifications subject to change without notice!



New Tension Sensor


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


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