Duplex Ferrograph System (Figure 1-14). The Duplex Ferrograph System consists of the Dual Ferrograph
Analyzer, Direct Reading Ferrograph, and a ferroscope with camera. The duplex ferrograph is located in the curbside
(1) The dual ferrograph is designed with two stations for making ferrograms, side by side. Operated
simultaneously or separately, each ferrograph station magnetically precipitates ferrous wear particles from the samples
and deposits them selectively on a thin glass slide called an ogram. After the oil is washed away by a solvent, the
remaining particles are left affixed to the glass slide. The ferrograms are then analyzed with the ferroscope.
(2) The ferroscope is a special bichromatic microscope system developed for fast and efficient ferrogram
analysis. With both reflected and transmitted light and magnifications of 100X, 500X, and 800X, the ferroscope readily
identifies wear particle size, shape, texture, and color. The system includes a 35mm camera to record particulate data.
Also a polaroid camera is provided for instant analysis.
Figure 1-14. Duplex Ferrograph System