SENSORS: Manufactured by Massa Products Corp., the M3 Zigbee enabled ultrasonic sensor design incorporates state-of-the-art ultrasonic technology to provide low cost non-contact distance measurement primarily for remote liquid level monitoring.
The M3 ultrasonic sensors stand out because of their affordability and reliability. The sensor transmits narrow beam sound pulses, processes return echoes, and produces several outputs dependent on the position of the target. The measurement is then transmitted by low power Zigbee radio to a ‘gateway’ and the information is presented to the user via LAN or web portal.
Operating on internal batteries with a typical life span of three to five years, the M3 family of sensors has a detection range of 4 inches ft to 13 ft. The distance measurement is transmitted via Digi International Xbee radios and gateway.
The M3 sensor contains advance on board diagnostics as well as many user adjustable output settings including measurement sampling rate, radio transmission rate, averaging of multiple distance measurements, loss-of-echo time-out as well as reporting battery voltage, temperature and other parameters.
The network also allows users to remotely program their sensors and read ranges for quick integration into their remote monitoring application.
Other features of the M3 ultrasonic sensor include: chemically resistant Kynar housing with 2-inch NPS fitting for mounting, built-in temperature compensation, diagnostic and monitoring outputs.
- Edited by Liz Taurasi