LTH 521SMART / 522SMART Ultrasonic Level Transmitters and Controllers have been designed for the measurement of chemicals, liquids and granular solids in tanks and silos. By using a powerful single chip, a high speed processor and enhanced manufacturing techniques the 521 and 522 transmitters provide stable readings, accuracy & reliable measurements in many applications.
LTH 521 and 522 transmitters feature calibration switches in the connection head enabling easy calibration. If the 521 & 522 transmitters are used as a two-threshold transmitter (Minimum & Maximum levels) calibration is performed by simply pressing two switches in a pre-established sequence.
For more complex applications the transmitters can be configured by a PC through the RS485 port using the “SMART” software enabling the user to set up minimum & maximum thresholds, pump controls or self diagnostic alarms. The 521 and 522 transmitters come as a standard 24vDC version with options for 24, 115 & 230vAC power supply versions.
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