MSM400 Ultrasonic Monitoring and Control

Many years of practical experience have shown that measurement of ultrasonic attenuation in a slurry is directly proportional to the percentage of suspended solids. The MSM400 ultrasonic solids density monitoring and control system uses this principle to produce a digital display of suspended solids, plus an analogue output.

The microprocessor allows HART communication on a 4-20mA output signal. The MSM400 unit also has two control relays to provide set point switches; or selected alarms for sensor failure or other fault. Built-in clock and timer functions allow time based desludge operations for normal settlement tank systems.

The MSM400 ultrasonic solids density monitoring and control system is easily programmed to suit site conditions and comes complete with a range of user selectable calibration settings for simple initial set-up. For more demanding applications and best accuracy, the system can be calibrated against reference samples and analysed for percent solids in a laboratory.

All displays and output functions or scaling can be customer configured as required. Typical display would show % solids, ultrasonic attenuation value, relay and input status, plus a bar graph representing the reading as a percent of full scale.