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1-5 Volts Output Pressure Transducers

1 to 5 volts dc output signal pressure transducers with a 4 volt output span proportional to the specified pressure range, with a 1Vdc output signal at the lowest input pressure and 5Vdc output signal at the highest input pressure.

Pressure transducers with a 1-5 Volts DC output provide a distinct voltage signal where 1Vdc signifies the lowest pressure in the measurement range (live zero) and 5Vdc corresponds to the highest pressure, offering a 4-volt output span directly proportional to the applied pressure. This output type is favored in many industrial and research settings for its clear diagnostic capabilities and straightforward integration with various data acquisition and control systems, making it a reliable choice for engineers and technicians requiring precise pressure monitoring with inherent fault detection advantages.

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Find out more about 1-5 Volts Output Pressure Transducers to determine which product options and capabilities will best meet your application requirements.

Pressure transducers featuring a 1-5 Vdc output signal are designed to provide a clear and reliable indication of measured pressure, commonly utilized within a wide array of industrial automation, process control, and research environments. A distinct characteristic of these devices is the “live zero” output of 1 Vdc when the transducer is subjected to the lowest pressure within its calibrated range (e.g., atmospheric pressure for a gauge sensor, or the lower limit of a compound range). This 1-volt signal at the low end of the measurement spectrum is particularly advantageous for system diagnostics, enabling monitoring systems to differentiate between a genuine minimum pressure reading and potential fault conditions such as a sensor power loss or a broken wire, which might otherwise be ambiguously represented by a 0-volt signal in transducers with a ground-referenced zero.

The operational output of these transducers spans 4 volts, from the 1 Vdc live zero up to 5 Vdc at the maximum specified pressure. This 4-volt range is linearly proportional to the full-scale pressure capacity of the transducer, ensuring a consistent and predictable relationship between the applied pressure and the resulting voltage signal. For engineers and technicians, this linearity simplifies the configuration of scaling factors within programmable logic controllers (PLCs), data acquisition systems (DAS), or digital display units. For example, in a transducer calibrated for a 0-200 bar range, 1V would correspond to 0 bar, 3V would represent 100 bar, and the full 5V output would indicate 200 bar, allowing for precise interpretation of the measured variable.

Typically, 1-5V output pressure transducers are configured as 3-wire devices, necessitating connections for a positive power supply, a common ground, and the signal output line. When integrating these sensors, design engineers must consider the input impedance of the connected instrumentation to prevent signal degradation or loading errors, ensuring the measurement system receives an accurate representation of the transducer’s output. While voltage signals, by their nature, can be more susceptible to electromagnetic interference (EMI) over extended cable lengths compared to current loop alternatives like 4-20mA, the 1-5V signal remains a preferred choice in many scenarios. These include applications with relatively short wiring runs, systems where data acquisition hardware is specifically designed for voltage inputs, or in battery-powered remote monitoring stations where the generally lower power consumption of voltage output transducers can be a significant benefit.

The utility of 1-5Vdc output pressure transducers is demonstrated across diverse applications. In industrial manufacturing, they are integral to monitoring hydraulic pressures in presses or injection moulding machines, and for overseeing pneumatic pressures in robotic actuators or material conveying systems. Within research and development laboratories, these transducers are frequently employed in test rigs, wind tunnels, or material testing apparatus where accurate and easily integrable pressure data is essential. The defined 1Vdc minimum output provides a stable baseline, facilitating the reliable implementation of alarm thresholds and process control interlocks, thereby enhancing system safety and operational efficiency in critical installations such as automated test cells or environmental control chambers. Careful consideration of the transducer’s pressure range, proof pressure, burst pressure, and compatibility with the process media are crucial selection criteria, alongside the electrical characteristics of the 1-5V output, to ensure long-term reliability and measurement accuracy.

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