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ZEF Digital Economical low tension measuring instrument

Made in GermanyPopular instrument with small rollers
Economical low tension measuring instrument for checking fibers, yarns and fine wires

  • Simple handling
  • Adjustable damping
  • Easy to read LCD display
  • Light weight
  • Everything in operator's view:
    - the guide rollers
    - the measured material
    - the readings
  • Housing made of high-strength plastic
  • »Auto-Zero setting« using a push button for measurement in different measuring positions
  • Slim filament guide with small guide rollers - ideal for limited access space
  • Filament guide and roller shifting mechanism ensure easy acquisition of the running material
  • Battery operated
  • Ball-bearing mounted, V-grooved guide rollers
  • Certificate of Compliance with the order 2.1 according DIN EN 10204 is included
  • Optionally available: Inspection Certificate 3.1 according DIN EN 10204 with calibration report

Tension Ranges
Model Ranges Measuring Head Width* mmSCHMIDT Calibration Material**  
ZEF-100 0.5-100.0 43PA: 0.12 mm Ø  
ZEF-200 1-200 43PA: 0.12 mm Ø  
Other units of measure are available, such as g.
* Width of filament guide
** Suitable for 95% of applications - PA = Polyamide Monofilament

Special calibration using customer supplied samples is recommended, if process material differs significantly from the SCHMIDT calibration material in diameter, rigidity or shape. For this purpose a material sample of about 5 m should be supplied.

ZEF Models
Miniature rollers make these models ideal for delicate yarns/fibers and fine wires as well as those application where access space is limited.

For Spandex and similar materials, specify model ZEF-100-T.

Complete Kit
Delivery includes:
Tension meter with carrying case and batteries, operating instructions in English or German as requested

Calibration: SCHMIDT factory procedure
Accuracy: ±1% full scale ± 1 digit or better
Overrange (approx.): 10% full scale, without accuracy guarantee
Overload protection: 100% of tension range
Measuring principle: Strain gauge bridge
Measuring roller deflection: 0.5 mm max.
Damping: adjustable
Signal processing: digital
A/D converter: 14 bit
Display: 3½-digit LCD, 10 mm high
Display update rate: 0.5 seconds
Self-frequency: 250 Hz
Autozero: ±20% full scale
Auto Power off: After 2 minutes of non-use
Temperature range: 10-45ºC
Air humidity: 85% RH, max.
Power supply: 2 size AAA batteries 1.5 V (about 30 hours of continuous use)
Housing material: Plastic (POM)
Housing dimensions: 157 x 85 x 32 mm (L x W x H)
Weight, net (gross): approx. 200 g (600 g)

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