We represent M/s Electro-Magfield Controls & Services, Chennai in supplying Portable Magnetic Crack Detectors. These are portable in nature, self-contained and housed in rugged aluminium and steel cases. Magnetizing cables in a wide selection of lengths and prod assemblies are available separately. Controls, indicators, either end output terminals or the remote control plug-in receptacle are located on the front panel for maximum visibility and convenience. The current control is in steps. At extra cost, stepless current control with built-in automatic demagnetizing facilities can be incorporated. The ammeters show the true magnetizing current in either the AC or HWDC mode operation.

Application:

• The FD portable magnetic particle test units provide an economical, convenient way to inspect wide range of parts for surface and near surface defects. These compact devices supply either Alternating Current or Half-Wave DC Current outputs. Used in conjunction with magnetic particles, both circular and longitudinal surface and near surface irregularities may be quickly detected. After inspection, the parts can be demagnetized.
• The model FD-1000 Series operates on 220 Volts, 1 Phase, & 50 Hz. The rated outputs (through a part of 3/5 Meter long cables and prods) make the units suitable for heavy-duty services in weld inspection application during fabrication or repair as well as for maintenance inspection of machinery and equipment.

Operation:

• These units supply both Alternating Current and Half-Wave Direct Current. Either dry or wet magnetic particles are used as indicators.
• Operation in AC mode offers maximum sensitivity and speed in locating surface defects. AC operation minimizes background interference, permitting better signal interpretation and thereby, increased defect identification sensitivity.