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ZEF-ZED Economical, Limited Access Digital Tension Meter

Made in Germany4 capacities, 50, 100, 200 and 500 grams or cN

The new CHECK-LINE models ZEF and ZED Tension Meters employ a strain-gauge system for accurately measuring the running line tensions on a wide variety of yarns, fibers and fine wires. Its trigger-operated roller shifting mechanism makes it easy to acquire the running material.

Single-button automatic zero permits operation in any orientation while maintaining highest accuracy.

  • Easy-to-read LCD display with auto power off
  • Powered by rechargeable Lithium Ion batteries, 90 hr battery life with 3.5 hr charge
  • Supplied in an attractive foam-fitted carrying case
  • Simple 2-key operation
  • ZED V-grooved guide rollers are rated for speeds up to 2000 m/min, or optionally, 3500 m/min
  • Certificate of Compliance with the order 2.1 according DIN EN 10204 is included
  • Automatic ZERO in all positions
  • User adjustable DAMPING to "average-out" tension fluctuations
  • Optionally available: Inspection Certificate 3.1 according DIN EN 10204 with calibration report

Tension Ranges
ZEF-50-G 0.5 - 50.0 grams     
ZEF-100-G 0.5 - 100.0 grams     
ZEF-200-G 1 - 200 grams     
ZED-500-G 1 - 500 grams     
ZEF-50-CN 0.5 - 50.0 cN     
ZEF-100-cN 0.5 - 100.0 cN     
ZEF-200-CN 1 - 200 cN     
ZED-500-CN 1 - 500 cN     

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

For Spandex and similar materials, specify model ZEF-100-T.
ZED Models
This model is recommended for all other applications where miniaturized rollers are not necessary.

Complete Kit
All models are supplied in a foam-fitted carrying case with worldwide AC-Charger with interchangeable multi-plug adapters


Measuring PrincipleStrain Gauge
Accuracy±1% Full Scale, ±1 digit
Outer Roller DistanceZEF: 22mm (c:c)
ZED: 38mm (c:c)
Over range Readings10% Full Scale
Over range Protection100% Full Scale
Sensing Roller Deflection0.5mm (maximum)
Display TypeLCD, 10mm height
Display Update Rate0.5 seconds
Natural Frequency250 Hz
Auto Zero±20% Full Scale
Battery TypeLithium Ion, rechargeable
Battery Life90 Hours Continuous Use (Approx)
Roller MaterialHard-coated Aluminum (standard)
POM Plastic (Optional), specify suffix "-T"
Max Linear Speed ZEF900 m/min (standard)
2000 m/min (optional), specify suffix "-K"
450 m/min (option "T")
Max Linear Speed ZED2000 m/min (standard)
3500 m/min (optional), specify suffix "-K"
Operating Temperature50 to 100° F (10 to 45° C)
Housing MaterialHigh-Impact Plastic (POM)
Dimensions6.2 x 3.3 x 1.3" (157 x 85 x 32 mm)
Weight200 grams (Approx.)

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