Tension Meter MST

3 Tension ranges available
from 1 - 500 cN up to 1 - 2000 cN

For fibers up to 2000 tex

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

CE mark

Special Features

Electronic yarn tension meter MST  with motorized take up with tension range up fixture

The electronic tension meter ETX is the basis of this instrument

Motorized take-up fixture to have constant speed of the thread 8 m/min

Storage of AVG, MIN, MAX and PEAK tension values of a user set time frame. These values can be recalled in the display

Adjustable electronic damping for better reading when tension is constantly fluctuating

Vacuum base for positioning the unit on the work plate when tension is measured at the sewing machine

Special fixture to determine shuttle tension

Output signal:
– analog 0 – 2 V DC
– digital RS-232

The tension meter MTS can be connected to a PC using the RS-232 interface to monitored readings constantly on a PC

Memory of max. 4000 displayed tension values split up to 255 series of measurements and statistics (Last, AVG, MIN and MAX of displayed values, MIN-PEAK and MAX-PEAK are values measured within a measuring frequency of 100 Hz)
Content of the memory

4 different memory modes can be selected by the operator:
– Mode S: only statistical values per series are displayed
– Mode L: statistics plus 10 displayed values of each series of measurement
– Mode C: statistics plus 4000 displayed values arbitrary split up to 255 series
– Mode F: as C plus higher sampling rate of 100 Hz = values/s

besonderheiten-pc-verbindungModel MST can be connected to a PC with the RS-232 cable. With optional available software SW-TI3 »Tension Inspect 3« readings can be displayed, statistically analyzed and saved. For more information see “Accessories”

Standard Features

Battery or mains operation (MST-2000 only mains operation)

Zero setting using a button before starting measuring

Microprocessor technology with high steadiness

Changeable units cN and g

Easy to operate

CE approved (tested for electromagnetic compatibility)

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

Tension meter MST on vacuum base beside a sewing machine

Seam with correct and incorrect adjusted thread tension

Left: Seam with correct adjusted thread tension
Right: Too much threat results in not sufficient linkage of the threat the the used material

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.

Available Models

ModelMeasuring Range
SCHMIDT Calibration Material*
MST-5001 up to 500 cNPA: 0.2 mm Ø
MST-10001 up to 1000 cNPA: 0.3 mm Ø
MST-20001 up to 2000 cNPA: 0.5 mm Ø
* Suitable for 95 % of applications – PA = Polyamide Monofilament

tension meter MST-500Tension Meter MST can be reconverted for special applications.

Find further information at special design


Calibration:According to SCHMIDT factory procedure
Accuracy:±1 % from measuring value ±1 digit or better
Overrange:10 % full scale, without accuracy guarantee
Overload protection:200 % full scale
Measuring principle:Strain gauge bridge
Measuring roller deflection:Max. 0.5 mm
Signal processing:Digital, 24 bit A/D converter
Damping:Adjustable electronic damping, averaging
Sampling rate internal:Approx. 5 kHz
Sampling rate:100 Hz: MIN-Peak and MAX Peak, 2 Hz: AVG, MIN, MAX
Display:LCD backlighted, 4 digit, 11 mm high
Display update time:2 times/s
Memory:Max. 4000 values plus statistics
Output signal:Analog: 0 – 2 V DC, linearized, sampling rate 100 Hz
Digital: RS-232 (19200, 8, N, 1)
Vacuum base:Adjustable height for measuring position above working plate 120 to 220 mm
Motor:Take-up fixture with speed of 8 m/min
Temperature range:10 – 45 ºC
Air humidity:85 % RH, max.
Power supply:9 V E-Block, e. g. Long living 9 V Lithium (approx. 1 h during motor operation or 80 h during operation tension meter)
or AC Adapter with 4 adapters (EU, USA, UK, AUS-NZL) for 100 – 240 V AC
Housing material:Aluminium profile
Dimensions:See dimensions
Weight, net (gross):Approx. 780 g (2000 g)

Specifications subject to change without notice!

Standard Accessories

  1. Vacuum Base


    Vacuum base for fast, save placing the measuring device at the working base beside the sewing machine. The tension meter MST can be horizontal positioned in exactly measurement position. Adjustable height for measuring position above working plate 120 to 220 mm. To save the vacuum base on the working plate, the rocker must be activated.

  2. AC Adapter

    AC adapter for tension meter MSTAC adapter with 4 adapters (EU/USA/UK/AUS-NZL) for 100 – 240 V AC adapter.
    This supplies the power of 15 V DC.


Accessories (optional)

  1. Software Tension Inspect 3


    For displaying and saving readings on a PC (Win XP and higher; 32 bit and 64 bit)
    – 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. RS-232 Connecting Cable


    Cable to connect the MST to PC using the RS-232 interface.
    Order number: EK0643

  3. USB Adapter

    USB-RS-232 Adapter

    Adapter from RS-232 to USB.
    Order number: EBG510

  4. Analog Connecting Cable


    Cable for the analog interface 0 – 2 V, 2 m long
    Order number: EK0661

  5. Tripod


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

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 meter MST to download.
Delivery Includes

Scope of delivery tension meter MSTTension meter MST with carrying case, vacuum base, battery, AC-Adapter with 4 adapters (EU/USA/UK/AUS-NZL) and operating instruction in German or English (as requested)

Instruction Manual

Download the instruction manual of tension meter MST.

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