Test set for Steel Cables
- MD121
Standard range of sensing test heads can be used for ropes ranging from 8 to 105 mm diameter
Custom designed heads are also available. For smaller ropes our MD-20/25 hand-held head-tester can be used. The GP-series test/measuring heads are sources of signals at magnetic inspection of the steel wire ropes of various sizes. Recorded head signals indicate LD/LF rope defects of stepwise changes of the cross-section nature (wire breaks, pitting corrosion, etc.) and also LMA distributed rope steel cross-section reduction (corrosion, wear). Analysis of the head generated signals makes possible determining the rope cross-section reduction rate as well as the length and depth of the defected section of the rope. The MD121 recording system includes a specially designed MD121 Wire Rope Defectograph, a portable data recorder with chart recorder. This is new instrument based on embedded industrial computer system which allows real time watching signal traces on 7” display, printing traces on strip chart simultaneously and viewing recorded data after rope test, with many features as zooming traces, searching for pulses crossing set limit, etc. Recorded data can be transferred to PC with USB pen drive memory and can be viewed and analysed with PC version of MD121’ software . This unique instrument has been designed as a helpful and comfortable tool, to meet the special needs of rope experts in heavy industrial environments.
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File browsing mode screen view Strip chart recording method | Transparent window IP65 version and IP67 version |
| Specifications | |
| MD121 /GP System meets requirements of | European standard EN 12927-8 and other standards |
| Number of direct sensor channels | 3 total, two LF/LD and one LMA |
| Number of additional channels | 1, INTEGRAL created on base of main LF/LD signal |
| Defect positioning on rope length | Strip chart feed and/or screen view is synchronised with rope/test head feed at 1, 2, 5, 10 div/m of rope or constant feed 1, 2, 5, 10 div/s, when recorded; length measurement indications shown on screen and printed on strip chart margin |
| "Zoom replay" ratio | 20 div/m of rope or div/s in immediate zoom mode, after interruption of recording and next any zooming ratios are available in both axis, in file view mode (zooming-in is signal resolution limited only); Zoom-Out is not limited by user settings set during recording (whole signal is stored, no signal over-range) |
| Strip chart paper | Thermal sensitive 110 mm wide, length 20 to 30 m (roll) |
| Longitudinal data (sampling) resolution | 1 or 2.5 mm at synchro mode or up to 5000 samples/s at time base mode |
| Data Memory Capacity | Up to 10 km long non-interrupted rope test (one file) and up to 400 km long rope tests total at synchro mode |
| Rope speed range at compensation of speed | Influence to inductive sensor signals: 0.02 to 10 m/s |
| Operating conditions except printing | Temperature -20° to + 50° C, Relative humidity up to 95% |
| Operating conditions with chart printing | Temperature 0° to + 40° C, Relative humidity up 25 to 85% |
| Power | 100-240V ac; internal rechargeable Li Ion battery for 14.5 hours operation without printing or 10 hours operation with printing strip chart (at 20° C) |
| Dimensions and GrossWeight with standard equipment | 41*33*17 cm 8 kg |
| Wet and dust protection, except printing | IP65 for transparent window version or IP67 if housing without window |
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