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ZEF
Digital Economical low tension measuring instrument |
4 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. |
 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 | | Specific Test Report with calibration report optionally available |
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| Model |
Ranges | Measuring Head Width* mm | SCHMIDT Calibration Material** | Resolution |
| ZEF-100 |
0.5 - 100.0 cN | 43 | PA: 0.12 mm Ø | 0.1 cN |
| ZEF-200 |
1.0 - 200.0 cN | 43 | PA: 0.12 mm Ø | 1 cN |
| ZEF-50 |
0.50 - 50.0 cN | 43 | PA: 0.12 mm Ø | 0.1 cN | | |
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.
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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. |
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| All models are supplied in a foam-fitted carrying case with worldwide AC-Charger with interchangeable multi-plug adapters. |  |
| 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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