These voltage output transducers will provide a linear signal of a few volts that is directly proportional to a specified vacuum range. Use these vacuum pressure transducers to measure over a portion of the vacuum range such as 0 to 500 mbar absolute or over the whole vacuum range such as 0 to -15 psi gauge. Depending on your application preference many of these transducers can be specified to measure vacuum either as a positive absolute pressure or a negative gauge pressure. Vacuum range pressure transducers with 5 or 10 volt full range output signals for measuring partial vacuums of a few mbar or full vacuums up to minus 1 bar (-15 psi).
- DMP343 Low Range Pneumatic Pressure Sensor - DMP343 pneumatic pressure sensor for measuring very low range pressures on pneumatic control systems, heating, ventilation and air conditioning systems (HVAC) .
- DPS300 User Switchable Pressure Range, Volts or Current Output Low DP Sensor - The DPS 300 is a low range HVAC differential pressure sensor. The lowest possible pressure range is 0...100 pascals. 2 or 3 switchable pressure ranges, plus volts or current output are included with most standard configurations.
- DMP331P Hygienic Flush Pressure Transmitter - Sanitary pressure sensor wth exposed diaphragm with no crevices for high temperatures up to 300 Degrees Celsius in ranges from 100mb up to 40 bar gauge or absolute
- DPS200 HVAC Differential Pressure Transmitter - Differential air pressure sensor with a 10 volt or a 4-20mA output for building ventilation applications. Ranges from 0 to 6 mbar up to 0 to 1000 mbar.
- DS200P Sanitary Low Range Pressure Gauge, Switch and Sensor - All in one electronic switch, gauge and sensor designed specifically for use in the food, drink and biomedical industry for measuring process pressures.
- DS200 Combined Pressure Switch, Gauge and Sensor - Three in one electronic pressure switch, digital pressure gauge and pressure sensor with pressure ranges from 100 mbar up to 600 bar (1.5 to 9000 psi).
- DMP331i High Accuracy Pressure Transmitter - High precision pressure transmitter with an accuracy of 0.1%FS BSL NLHR and digitally adjustable pressure ranges from 400mb up to 40 bar gauge & absolute.
- DS210 Combined Low Pressure Switch, Indicator and Sensor - Low range three in one pressure switch, pressure indicator and pressure sensor for use on pneumatics and HVAC applications.
- DPS Low Differential Pressure Transmitter - Ultra low differential pressure transmitter for HVAC applications with 4-20mA current loop or amplified voltage output signal in pressure ranges from 0.1 mb up to 1 bar differential.
- DMK331P Flush Diaphragm Pressure Sensor - Screw-in pressure transmitter with flush stainless steel 316L diaphragm for measuring pressures of fluids with very high viscosity from 900 up to 6000 psi
- 25 Ed Flame Proof Flush Diaphragm Pressure Transmitter - ATEX certified flame proof pressure transmitter with an open face pressure connection for use with pharmaceuticals or high viscosity media.
Specifying vacuum pressure transducer requirements
Some questions to ask when defining the product requirements for a vacuum pressure transducer.
What range of vacuum do you need to measure, is it over the whole range from atmospheric pressure to a high vacuum, or a partial vacuum such as reducing the pressure to 90% atmospheric pressure?
Are you measuring vacuum relative to full vacuum reading, which would need an absolute reference, or are you measuring vacuum relative to atmospheric pressure, which would require a gauge reference?
Voltage output type
What voltage output scaling is required for the vacuum transducer signal, e.g. 0-5V, 0-10V, 1-5V, or 0.5-4.5V?
How accurate does the vacuum reading need to be in % of full range or vacuum units such as mbar, Torr, inHg, mmHg or psi?
Do you have a preferred way of connecting the voltage output signal to your vacuum measurement instrumentation?
Do you need a connector or a cable supplied with the transducer?
What is the vacuum medium being measured? A vacuum measurement application often involves the removal of air, but it can involve any type of gas, and this may affect the suitability of materials used in the construction of the transducer, so it is an important consideration to ensure the long term reliability of the vacuum pressure transducer.
Do you have a preferred vacuum connection for mounting the transducer? The level of vacuum being applied can influence the type of connection required, particularly high vacuums where vacuum compatible materials and vacuum seal integrity becomes more restrictive.
Checklist for vacuum pressure transducer requirements
Define your vacuum pressure transducer requirements using this checklist:
- Vacuum range?
- Reference type?
- Voltage output type?
- Electrical connection?
- Media type?
- Process connection?