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522M35A

522M35A

522M35A

Product catalog summary
Description
Meggitt model 522M35A is a high-quality piezoelectric pressure sensor designed for measuring small dynamic pressure fluctuations in environments with high static pressure. It operates continuously at temperatures up to +938°F and intermittently up to +1040°F. The sensor features an all-welded Inconel and stainless steel construction with a 24-inch metal-sheathed, mineral-insulated integral hardline cable. It outputs a balanced, differential signal suitable for use with a differential input charge amplifier. Common applications include gas turbine combustion monitoring and high-pressure steam testing. The sensor is certified for use in explosive environments.

Key Features
  • Operation up to +986ºF (+530ºC) and +1040°F (+560°C) intermittently
  • Measures small dynamic pressures under high static pressure
  • Balanced differential output
  • Hermetically sealed
  • Integral hardline cable
  • All Inconel and stainless steel construction

Specifications
Dynamic Characteristics
  • Measurement range: ± 500 psi
  • Sensitivity: 17 pC/psi ± 20%
  • Resonance frequency: minimum 20 kHz
  • Sensitivity deviation over temperature: ± 10% typical
  • Vibration sensitivity: 0.05 pC/g typical

Electrical Characteristics
  • Output signal type: Balanced differential
  • Internal resistance at room temperature: 1 GΩ minimum
  • Insulation resistance at room temperature: 100 MΩ minimum
  • Internal resistance at maximum temperature: 50 kΩ minimum
  • Insulation resistance at maximum temperature: 10 kΩ minimum
  • Capacitance: 165 + 65 pF/ft

Environmental Characteristics
  • Operating temperature range: -67 to +986°F (-55 to +530°C)
  • Maximum intermittent exposure: +1040°F (+560°C)
  • Receptacle temperature range: -67 to +500°F (-55 to +260°C)
  • Humidity: Hermetically sealed
  • Maximum static pressure: 400 psi
  • Minimum bend radius of hardline cable: 0.3 inch

Physical Characteristics
  • Weight: 250 grams (8.8 oz)
  • Material: Transducer made of Inconel alloy; hardline cable and receptacle made of stainless steel

Calibration Data Supplied
  • Sensitivity: pC/psi
  • Internal resistance: Ω
  • Insulation resistance: Ω
  • Capacitance: pF

Notes
Intermittent temperature exposure is defined as 5 minutes over a 30-minute period.
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Catalog excerpts

522M35A-1

Enabling the Extraordinary To Fly To Rower To Live MEGGHT Piezoelectric dynamic pressure sensor MAIN KEYWAY Key features • +986°F (+530°C) operation; +1040°F (+560°C) intermittent operation • Small dynamic pressure measurements even under high static pressure • Balanced differential output • Hermetically sealed • Integral hardline cable • All Inconel and stainless steel construction INCHES [MILLIMETERS] Meggitt model 522M35A is a high quality piezoelectric pressure sensor designed to measure small dynamic pressure fluctuations, even in the presence of high static pressure. The sensor can also operate at very high temperatures; up to +938°F continuously and up to +1040°F intermittently. Model 522M35A features an all welded, Inconel and stainless steel construction with a 24 inch metal-sheathed, mineral-insulated integral hardline cable. Output is via an integral three-pin (one pin not used) receptacle. The output signal is a balanced, differential signal. A differential input charge amplifier is appropriate for use with this sensor. Common applications include: gas turbine combustion monitoring, high pressure steam and propulsion system testing. The unit with its mating cable is certified EExnA II T1-20°C <Tamb <399°C for use in explosive environments. Recommended compatible cables are the 6917M169-ZZZ, 6917M170-ZZZ and 6917M171-ZZZ or equivalent (ZZZ designates cable length in inches) which are low noise, twisted pair cable assemblies terminating to pigtail, BNC and PC06A-8-2P connector respectively.

 Open the catalog to page 1
522M35A-2

Enabling the Extraordinary To Fly To Rower To Live MEGGHT Piezoelectric dynamic pressure sensor Specifications The following performance specifications conform to ISA-RP-37.2 and are typical values, referenced at +75°F (+24°C), 4 mA, and 100 Hz, unless otherwise noted. Calibration data, traceable to National Institute of Standards and Technology (NIST), is supplied. Dynamic characteristics Measurement range Sensitivity Resonance frequency, minimum Sensitivity deviation over temperature -67°F to +986°F (-55°C to +530°C) Vibration sensitivity Electrical characteristics Output signal type Resistance...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.