AB Lorentzen & Wettre Kağıt Yırtılma Mukavemeti Test Cihazı

AB Lorentzen & Wettre Kağıt Yırtılma Mukavemeti Test Cihazı

Automatic calculation of tearing resistance

L&W Tearing Tester measures tearing resistance according to the Elmendorf method. Menu-based set-up, pneumatic clamping of the test pieces and automatic calculations of the measured values, ensure stable and accurate test results.

L&W Tearing Tester uses the tearing principle according to the Elmendorf method, which is the classical method to measure tearing resistance in paper.

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User-friendly

L&W Tearing Tester is easy to use, because of its many advanced functions. An easy-to-read display, a simple keypad and interactive, menu-based set-up are a few of the features that have made this instrument a bestseller. The pneumatic clamping and pendulum release, contribute in making results stable and correct, regardless of operator.

Calculations, calibrations, internal tests, alarm functions, zero-setting, pendulum release and reporting of results are all handled by the built-in microprocessor. No correction for pendulum factor is necessary.

The serial output can be used to link the tearing tester to a PC for further statistical analysis of measured values.

 

Specifications
  • Built in compensation of pendulum friction and belt resistance
  • Easy to calibrate using the check weights which are included in delivery
  • Pneumatic clamps
  • The built-in microcomputer handles all calculations and set-up functions
  • Measured values are presented in mN, gf or scale units
  • Easily interchangeable pendulums
    Pendulum
    Light A
    Medium B
    Heavy C
    Test pieces torn
    Max tearing capacity
    8000 mN
    (800 gf)
    16000 mN
    (1600 gf)
    32000 mN
    (3200 gf)
    1
    SCAN P-11
    APPITA/AS 1301.400S
    max 1500 mN
    600–3000 mN
    2000–7500 mN
    4
    BS 4468
    ISO 1974
    DIN 53128
     400 –1600 mN
    800–3200 mN
    1600–6400 mN
    4
    PAPTAC D.9
    0–1500 mN
    600–3000 mN
    2000–8000 mN
    4
    TAPPI T414
    max 600 gf
    max 1200 gf
    max 2400 gf
    1 or more
Specification

L&W Tearing Tester – Code 009
Inclusive
Pendulum with two check weights


Measurement

Units
mN, gram force (gf) or scale parts
Capacity
see table on page 147


Results


 Measurement values
- individual tearing resistance
Statistics
- mean value
- standard deviation
- coefficient of variation
- maximum and minimum approved values of the series



Connections

Data

RS232C
- connectable to L&W Autoline Data Acquisition Workstation



Installation requirements

Power
25 W
Instrument air
 0.5–0.6 MPa (70–90 psi)


Options

Alternative pendulum A, B or C (according to the table).
Calibration weights 15–2 130 g, in 64 steps

Size

Dimensions

0.5 × 0.2 × 0.4 m
20 × 8 × 16 in

Volume

0.15 m³
5.3 ft³





Net weight

11 kg
24 lb

Gross weight

23 kg
35 lb

Standards

Applicable standards and sample length

APPITA/AS 1301 400S
BS 4468
PAPTAC D.9
DIN 53128
EN ISO 21974
NF Q 03011
ISO 1974
SCAN P11
TAPPI T414    

– 62 mm
– 62 mm or 63 mm
– 63 mm
– 62 mm or 63 mm
– 62 mm or 63 mm
– 62 mm or 63 mm
– 62 mm or 63 mm
– 62 mm
– 63 mm

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