Special Features
- The analog display of tension meter DX2 shows changing and fluctuating tensions fast and enables an optimal process adjustment
- The built-in material thickness compensator compensates different material diameters for a particular range (only DX2-1000 and higher ranges).
- Filament guide and roller shifting mechanism ensure easy acquisition of the running material
- Special finger support located on the rear side reduces the effort to move the outer roller assembly
- Custom-built configurations and special calibration are available
Standard Features
- Everything in operator’s view:
– the guide rollers
– the measured material
– the readings - Ball-bearing mounted, V-grooved guide rollers
- Each instrument is individually calibrated for highest accuracy
- 41 mm Ø scale
- Tension meter with rugged aluminium housing
- 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
Material thickness compensator
For better accuracy the material to be measured or a similar material with the same diameter should be inserted.
Finger Support
We recommend mounting a finger support for higher tension ranges of tension meter DX2
Determine the tension of the thread at a sewing machine with a tension meter DX2-1000-M
Available Models
| Model | Tension Ranges |
Measuring Head Width* |
SCHMIDT Calibration Material** | Material Thickness Compensator |
| DX2-50 | 10 – 50 cN | 66 mm | PA: 0.12 mm Ø | no |
| DX2-120 | 20 – 120 cN | 66 mm | PA: 0.12 mm Ø | no |
| DX2-200 | 20 – 200 cN | 66 mm | PA: 0.12 mm Ø | no |
| DX2-400 | 20 – 400 cN | 66 mm | PA: 0.20 mm Ø | no |
| DX2-1000 | 50 – 1000 cN | 66 mm | PA: 0.30 mm Ø | yes |
| DX2-2000 | 200 – 2000 cN | 116 mm | PA: 0.50 mm Ø | yes |
| DX2-5000 | 400 – 5000 cN | 116 mm | PA: 0.80 mm Ø | yes |
| DX2-8000 | 1000 – 8000 cN | 116 mm | PA: 1.00 mm Ø | yes |
| DX2-10K | 2.5 – 10 daN | 116 mm | PA: 1.00 mm Ø | yes |
| DX2-20K-L | 5 – 20 daN | 216 mm | PA: 1.50 mm Ø | yes |
Other tension ranges and measuring head widths available on request.
Other units of measure available – g or kg.
* Depending on model, either width of filament guide or outer distance between outside guide rollers
** 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.



SCHMIDT scales are manufactured according to the most stringent quality requirements. Printed scales are not used. Instead, each scale is individually marked for the instrument involved. This ensures highest quality. Our special procedure makes it possible to provide tension meter DX2
For tension range from 20 – 120 cN up to max. 400 – 5000 cN.


Besides strength and the kind of stich the tension of the upper and lower thread is important for the solidity and the image of the seam. Tension determines the stitching length. For measuring the upper and under thread of non-operating machines DX2 series is recommended. The tension meter is used after the yarn break and the thread unwinded by hand. The most used models are DX2-400, DX2-1000 and DX2-2000. These tension meters are often equipped with a memory pointer code M, to read the measuring value after finishing the measurement. Further tension meters for measuring the thread tension at sewing machines are the models ZF2 and Q, as well as series DT, ET and TS.
Left: Seam with correct adjusted thread tension