30 → festo.com/didactic 1 Ultrasonic Level Transmitter Measurement device that uses sound waves to detect the level of liquid in the column of the Pressure, Flow, Level, and Temperature Process Learning Systems. This transmitter includes an ultrasonic sensor/ emitter installed on the flange of the column and a transmitter supporting the HART communication protocol. The device can be configured manually, but it is strongly recommended to use an optional Software Configurator. Recommended learning material, also order: “Ultrasonic Level Transmitter (HART)” → Page 165 Order no. 588337 2 Guided-Radar Level Transmitter Measurement device that uses electromagnetic waves to detect the level of liquid in the column of the Pressure, Flow, Level, and Temperature Process Learning Systems. Changes in the density, conductivity, and composition of the process fluid do not affect this sensor. This transmitter includes a rod probe to guide the signal in the column and a transmitter. It can be configured manually via its alphanumeric display and push-buttons, a software configurator is required to efficiently program advanced functions. Recommended learning material, also order: “Radar Level Transmitters” → Page 166 Hart* 589127 Bluetooth, Heartbeat, HART 611545 * Software configurator required → Page 101 3 Radar Level Transmitter Device that uses electromagnetic waves to detect the level of liquid in the column of the Pressure, Flow, Level, and Temperature Process Learning Systems. It includes a horn antenna to direct the signal and a transmitter. It can be configured manually via its alphanumeric display and push-buttons, a software configurator is required to efficiently program advanced functions. HART* 589125 Bluetooth, Heartbeat, HART 589125 * Software configurator required → Page 101 4 Capacitive Level Transmitter Level measurement device based on the change in the capacitance of a capacitor as the level of fluid constituting the capacitor varies. It includes a 4–20 mA output to monitor the level in the column and is compatible with the HART communication protocol. The device can also be configured manually via its alphanumeric display and push-buttons. Recommended learning material, also order: “Capacitive Level Transmitter” → Page 165 Order no. 588350 5 Vibrating Fork Level Switch Level limit switch that detects whether or not the level of water in the column has reached a set level. The fork of the switch is continuously excited at its natural resonance frequency. When the level of liquid reaches the fork, the frequency of oscillation changes. This is detected by the device which triggers a relay. The device allows continuous monitoring and is suitable for overspill-protection setups. Recommended learning material, also order: “Pressure and Level Switches” → Page 165 Order no. 588344 Industrial Instrumentation and Process Control > Components 1 2 3 4 5
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