Two Wire Level Transmitter

Two Wire Level Transmitter

Operating Principle:

A two-wire level transmitter is a device used in industrial applications to measure and transmit the level of liquid or bulk material in a tank, vessel, or other storage container. It is commonly used in industries such as oil and gas, chemical processing, water treatment, and pharmaceuticals.

The term "two-wire" refers to the electrical connection required for the transmitter. Unlike other types of transmitters that require separate power and signal wiring, a two-wire level transmitter operates using a single pair of wires for both power supply and signal transmission. This wiring configuration simplifies installation and reduces the cost of wiring infrastructure.

The two-wire level transmitter typically consists of two main components: a sensing element and a transmitter electronics module. The sensing element is responsible for measuring the level of the substance in the tank and converting it into an electrical signal. Common sensing technologies include pressure-based, capacitance-based, ultrasonic, and radar.

The transmitter electronics module receives the electrical signal from the sensing element and conditions it for transmission over the two-wire connection. It typically includes a signal amplifier, temperature compensation circuitry, and digital or analog signal conversion circuitry. The conditioned signal is then transmitted over the same pair of wires to a control system, where it can be further processed and used for monitoring or control purposes.

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