Mehrfach-Prüf-Gravelometer

A gravelometer (20) includes a base unit (30) comprising compressed air receiver tank (40) having wheels (42) and feet (44). Main frame (46) connects tank (40) to a media gun frame or mount (50) and includes a bore (52) for releasably receiving and supporting a media gun (54) having a mounting flange (70) so that media inlet (56) is upwardly oriented and gun barrel or media outlet (57) extends through gun mount (50). Media inlet (56) interconnects via elongated conduit (58) to a media supply system (60) which includes media supply hopper (62) and vibratory feeder assembly (64). A control system (80) having operator control panel (82) controls operations. A modular target box or chamber (90) is aided in being releasably connected to base unit (30) by locator pins (102). Chamber (90) includes media inlet (92), media outlet (94), which connects to spent media reclaim chamber (100), and specimen window (96) having a target holding toggle clamp (98).