Selecting the right Tension Meter
- Selecting the Model
According to your desired use:Hand-held or stationary modelMechanical or electronic model
According to application:
- Selecting the Tension Range
e.g. max. yarn count
e. g. copper wire,
20 cN Filament: 25 tex 25 tex max. 0.05 mm Ø 50 cN PA: 0.12 mm Ø 50 tex max. 0.08 mm Ø 120 cN PA: 0.12 mm Ø 120 tex max. 0.13 mm Ø 200 cN PA: 0.12 mm Ø 200 tex max. 0.17 mm Ø 300 cN PA: 0.20 mm Ø 300 tex max. 0.20 mm Ø 400 cN PA: 0.20 mm Ø 400 tex 0.10 – 0.25 mm Ø 500 cN PA: 0.20 mm Ø 500 tex 0.10 – 0.25 mm Ø 1000 cN PA: 0.30 mm Ø 1000 tex 0.10 – 0.45 mm Ø 1500 cN PA: 0.30 mm Ø 1500 tex 0.15 – 0.50 mm Ø 2000 cN PA: 0.50 mm Ø 2000 tex 0.30 – 0.60 mm Ø 3500 cN PA: 0.80 mm Ø 3500 tex 0.35 – 0.80 mm Ø 5000 cN PA: 0.80 mm Ø 5000 tex 0.40 – 1.00 mm Ø 8000 cN PA: 1.00 mm Ø 8000 tex 0.50 – 1.20 mm Ø 10 daN PA: 1.00 mm Ø 10000 tex 0.70 – 1.40 mm Ø 20 daN PA: 1.50 mm Ø 20000 tex 1.50 – 2.00 mm Ø 30 daN PA: 1.50 mm Ø 30000 tex 1.50 – 2.50 mm Ø 50 daN Steel rope:
1.50 mm Ø (7x7x0.20)
50000 tex 1.50 – 3.00 mm Ø 60 daN Steel rope:
2.00 mm Ø (7x7x0.30)
60000 tex 1.80 – 3.50 mm Ø
Recommendations for typical textile and wire applications
* Tension measured in N (= Newton)
**Calibration with standard materials – such as polyamide monofilament (PA) – according to the SCHMIDT factory procedure has been proved to provide the best results for 95 % of all industrial applications..Note: We recommend selecting the tension range twice the tension you intend to measure. This has the advantage that you can measure higher than expected values. It also facilitates reading the measured tension on analog scales.
Tex-system is a weight numbering system (tex = weight in gram per 1000 m running length, that means 1 tex = 1 g/1000 m). It is used to describe the fineness of textile fibres, yarns, twines, etc. Even higher the tex-number, the stronger is the yarn. The tex-symbol is set behind the particular number, e. g. 120 tex.
120 tex x 2 means: There are twisted 2 yarns with 120 tex.
Fine yarns are declared with the description decitex (abbreviation = dtex). Therefor the weight adverts on continuus yarn in gram per 10000 m running length, theat means 1 dtex = 1 g/10000 m. Even higher the dtex-number, even stronger is the filament. In practice the specifications of chemical fibers occur mostly in dtex..
If your material to be measured differs in kind and diameter:
Please contact us for assistance to determine the right tension range and model. For this purpose a material sample of 5 m should be supplied.
- Select the Guide Rollers
according to the following criteria:Roller shape V-grooved or with asymmetrical groove…Roller shape U-grooved with radius or cylindrical…Roller material (hardcoated aluminium, plastic, steel, etc.)…Max. line speed of the measured material…
- Required AccessoriesAdjustable dampingSpecial leverMemory pointer
- Special Custom-Made Designs
We provide customer-supplied designs on request:Special tension rangesCustomized measuring head widths for applicationsCustomized distance between the two outer rollers to minimize material deflectionCalibration for material path other than verticalCalibration to different units, such as g or kg
For more information please contact us.
- Calibration using Customer-Supplied Material
This is recommended when the material to be measured differs significantly from the SCHMIDT calibration material in diameter, rigidity of shape etc. For this purpose a material sample of about 5 m should be supplied.
- Inspection Certificate 3.1
according EN 10204 with calibration report optional.
These Quality Certificates are optionally available and are recommended especially for ISO 9000 certified companies. Certificate of Compliance with the order 2.1 according EN 10204 is included.If you need assistance…
Should you need any help in selecting your tension meter, please contact us directly, or the service department of your machinery supplier. In any case, please furnish the following information:Description of application and machinery, pictureDescription of the material to be measured (Ø, type, characteristics, etc..)Line speed of the materialMaximum measuring head width or available access spaceRecommended or estimated tensionIf necessary, submit a material sample of about 5 m