Differential pressure transducers with amplified 0-5V, 1-5V, 0-10V, and 1-10V outputs for precise liquid and gas DP measurement in demanding industrial and research applications. Enhanced signal clarity and 3-wire configuration.
Differential pressure transducers with amplified voltage outputs, designed for precise and reliable measurement of the pressure difference between two points in liquid or gas systems. These transducers provide industry-standard output signals, including 0-5VDC, 1-5VDC, 0-10VDC, and 1-10VDC, ensuring compatibility with a wide array of data acquisition systems, process controllers, and monitoring instrumentation. The integrated amplification enhances signal strength and minimizes the impact of electrical noise, making them particularly well-suited for demanding industrial environments, long-distance signal transmission, and applications requiring high accuracy, such as process control, HVAC systems, and research laboratory setups. Live-zero output options are also available to provide an additional layer of reliability by indicating sensor failures.
20 pascal differential pressure transducer for clean rooms - Voltage output pressure transducer with 0-20 Pa range for cleanroom applications. Provides reliable pressure monitoring to prevent contamination in critical environments.- 20 Pa DP range 0-10V output air pressure sensor for building management use - A low range 20 Pa range differential pressure sensor, ideal for monitoring filters, ventilation ducts, and HVAC systems in commercial and residential buildings.
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Find out more about Voltage Output DP Transducers to determine which product options and capabilities will best meet your application requirements.
Differential pressure voltage output transducers are specialized sensors designed for precise measurement of the pressure difference between two points in a system containing liquids or gases. Unlike unamplified pressure sensors, these transducers incorporate integrated signal conditioning to provide an amplified voltage output, significantly improving signal strength and noise immunity, particularly beneficial in industrial and research environments.
These transducers are commonly offered with several standardized output ranges, including 0-5VDC, 1-5VDC, 0-10VDC, and 1-10VDC. The choice of a 3-wire configuration in these voltage output versions simplifies integration into many data acquisition systems, process controllers and instrumentation monitoring circuits. The three wires typically represent power supply, ground, and the amplified voltage output signal, providing a straightforward electrical interface.
The amplified voltage output is particularly advantageous in applications where the signal must travel longer distances, or where electromagnetic interference (EMI) or radio-frequency interference (RFI) is a concern. The amplified signal is less susceptible to degradation and noise, ensuring a more reliable pressure reading at the receiving end of the instrumentation monitoring system.
The selection of specific output ranges, such as 0-5VDC versus 0-10VDC, often depends on the input requirements of the connected data acquisition system or controller. Some systems are designed to accept a wider input range, while others are optimized for a narrower span. A 1-5VDC or 1-10VDC signal, starts the output above zero, to provide a live zero signal, which is used to indicate a sensor failure if the output goes to zero.
Consider a process control application in a chemical plant where the flow rate of a corrosive fluid needs to be precisely monitored. A differential pressure transducer with a 0-5VDC output could be installed across an orifice plate in the pipeline. The transducer’s amplified output signal, directly proportional to the pressure drop (and therefore flow rate), is then transmitted with minimal loss of fidelity to a PLC, which uses this information to control the process.
In HVAC systems, a voltage output differential pressure transducer can be employed to measure the pressure drop across air filters. As the filter becomes clogged, the pressure differential increases. This change is detected by the transducer, and the amplified voltage signal can be used to trigger an alarm, indicating the need for filter replacement. The robust signal from these transducers makes them suitable for such demanding industrial environments.
Another application lies in research laboratories, where precise pressure control is crucial. For instance, in a wind tunnel experiment, a 0-10VDC output differential pressure transducer might be used to measure the pressure difference across a test object, providing highly accurate data for aerodynamic analysis. The enhanced signal clarity minimizes errors that might otherwise be introduced by noise.
The robust signal conditioning inside the transducer allows them to operate reliably and minimizes sensitivity to external factors, making them a suitable choice for critical measurement and control applications where a robust sensor signal is paramount.
Product Help
Specifying voltage output differential pressure transducer requirements
Some questions to ask when defining the product requirements for a voltage output differential pressure transducer.
Differential pressure range
What is the highest differential pressure you need to measure?
Are the high and low pressure side always the same way round, or could they switch around? If the high and low pressure side is likely to reverse back and forth, then you will need to specify a bidirectional or compound range to cover the changing direction of pressure.
Do you need to change the dp range for a different process or location? Some differential pressure transducers allow the range to be adjusted by the user. Rangeable voltage signal dp transducers are adjusted manually by internal screws or buttons which are accessed by removing a waterproof lid or cap. Intelligent dp transmitters are adjusted via a in-built user interface, digital interface and associated software, or a special user hand terminal.
Static line pressure
What could be the highest pressure measured at either of the two process connections?
This is the general system pressure and is often significantly higher than the differential pressure measurement range. The static line pressure rating of amplified volts out dp transducers will vary enormously from one type to another, so it is important to pay special attention to this parameter, since it could lead to mechanical failure if an inadequate rating is selected.
Is there a risk that full static line pressure could be applied to one side of the voltage out differential pressure transducer? The line pressure rating does not necessarily mean that this pressure can be applied to one-side only. Most manufacturers will make it clear on their product data sheets whether the maximum static line pressure can only be applied on both sides simultaneously, or is protected from it being applied on one side only.
Overpressure
Is there a chance that the normal operating differential pressure range could be exceeded by a pressure surge or a process problem?
Maximum overpressure is the amount of differential pressure that the transducer can withstand beyond 100% of the dp range, without pushing the performance outside of specification limits.
The overpressure rating is typically expressed as multiples of the dp range, e.g. 2x, 4x.
Bidirectional or compound differential pressure ranges, which are a combination of a positive and negative pressure range component, should have two overpressure ratings.
If the volts output dp transducer will only allow full static line pressure to be applied to both sides at the same time, then take care to check the negative overpressure rating is adequate. Depending on the differential sensing technology utilised, the negative overpressure rating maybe significantly lower than the positive overpressure rating.
Where a voltage differential pressure transducer is protected against the full static line pressure being applied to one side only, then the positive and negative overpressure rating will equal the max static line pressure rating.
Checklist for voltage signal differential pressure transducer requirements
Define your volts output differential pressure transducer requirements using this checklist:
- Differential pressure range?
- Static line pressure?
- Overpressure?
- Media type?
- Media temperature range?
- Environmental conditions?
- Signal output? 0-10Vdc
- Power supply?
- Measurement accuracy?
- Electrical connection?
- Process connection?
- Certification?