Markland Specialty Engineering Ltd.
Rexdale, ON M9W 4M2  Canada
Mar 26, 2003 Model 502 can replace nuclear type density meters. It provides LCD local readout of percent solids, 4-20 mA output, two set-point relays, and RS-232/485 serial port. Sonic transducers fit flush with pipe wall, eliminating intrusions into flow, which avoids fouling with stringy sewage sludge. Microprocessor is housed in NEMA 4X enclosure and features diagnostics, pushbutton calibration and dynamic damping.

Emerson Process Management
Knoxville, TN 37932
Dec 03, 2002 Züllig COSMOS-25 provides suspended solids measurements. Able to be used in open channels or basins and pipelines, its multi-beam technology renders product less vulnerable to measurement discrepancies.