Zawada NDT
WIRE ROPE INSPECTION

 

MD-20 WIRE ROPE TESTER
MD-25 WIRE ROPE TESTER

An Instrument to Detect Damage in Wire Ropes

MD-20 Wire Rope Tester Meraster S.A. instrument for NDT wire rope inspection examination non-destructive testing of wire ropesThe MD 20 / MD 25 Wire Rope Tester is a simple to use instrument to test the condition of small diameter ropes. It indicates the occurrence of rope defects that exceed the set level of detectability.

 It can also be used as a sensor head connected to the more advanced Meraster MD 120, which determines defects more accurately, or can be connected to a general purpose recorder.

 Applications
The instrument is designed to detect stepwise defects such as wire breaks and localised corrosion.

MD-20 set Meraster S.A. instrument for NDT wire rope inspection examination non-destructive testing of wire ropesOperation
The instrument's operation is based on the permanent magnet magnetic, a world renowned method developed by the Academy of Mining and Metalurgy in Cracow. During the rope's passage through the tester defects are signalled by a beep sound, a yellow light-emitting diode flashing and a red LED operates, remaining on until the instrument is switched off, using the on-off switch. If there are no defects in rope that exceed the detection value set, then the green LED is illuminated
 
 

Technical Data

  • Range of rope sizes

    • MD-20: 8 to 22 mm diameter
    MD-25: 10 to 25 mm diameter
    suitable for detecting any typically broken wire
  • Sensitivity:

    • Detection level, adjustable by ten-turn potentiometer
  • Speed of checked rope:

    • Recommended 0.1 to 2.5 m/s (6 to 150 m/min); results are independent of rope speed
  • Indicators:

    • 4 light-emitting diodes
    • LB (red) - low battery/charging
    • OK (green) - lack of rope defects
    • D (yellow) - defect (flashing at defect location)
    • DM (red) - faulty rope (continuous light)
  • Sound beeper
  • Supply:

    • Ni-Cd or NiMH 8.4-9V/100-160 mAh rechargeable battery (included)
    or 9V type 6F22 primary battery
    Rechargeable battery can be charged inside the instrument by internal circuits and external transformer/charger
    (230 V a.c. to 12-19 V d.c. version included)
  • Operating temperature:

    • standard MD 20/25: -10 to +40°C
    MD 20L: –25 to +40°C
  • Output socket:
    stereo jack coupling
    1. Damage detection signal
    2. Inductive transducer signal
  • Length: 205 mm
  • Width: 46 mm
  • Height with rollers (hand operated, full diameter range): 280 mm
  • Height with sliding guides for up to 18 mm diameter (mounted tester): 243 mm
  • Height without rollers and sliding guides (frictionless rope passage through the mounted tester): 163 mm
  • Weight: MD-20 4,5 kg / MD-25 4,9 kg

zawada@z-ndt.com Fax: ++48 32 376 7900 Phone: ++48 32 271 6231 www.z-ndt.com
Mail: Zawada NDT, ul. Tatarkiewicza 8, PL- 41-819 Zabrze, POLAND
Office: Zawada NDT, ul. Roosevelta 120 - 5. p. (MERASTER Building), 41-800 Zabrze, Poland