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ESS501I Ceramic Pressure Sensor Module

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ESS501I Ceramic Thick Film Pressure Sensor Module

Based on Metallux ME501/505, ESS501I pressure sensor module is made with a ceramic base cell and a flush diaphragm and work following the piezoresistive principle. The Wheatstone bridge is screen printed on one side of the flush ceramic diaphragm which is, in turn, glued to the sensor’s body. The bridge faces the inside where a cavity is made. Signal conditioning electronics are added to generate 0.5…4.5 V ratiometric output, current loop 4…20 mA or 0…10 V non ratiometric output.

Pressure and temperature calibration are done electronically with the on-board ASIC and can be performed in bar or in psi. Electronics provide offset and span correction when temperature changes. Aging detection and compensation are constantly performed. This new method guarantees good precision and long-term stability.

Due to the excellent chemical immunity of the the Al2O3 ceramic, the ESS501I pressure sensor module are suitable for nearly all aggressive media.

Features & Benefits

  • Pressure range 0.5bar‐800bar
  • Excellent resistance to corrosion and abrasion
  • Absolute measurement available
  • Thermally compensated
  • Extended customization
  • Extended choice of measuring ranges

Applications

  • Cooling equipment & A/C system
  • Automotive and vehicle
  • Industrial process control
  • HVAC system
  • Refrigeration equipment
  • Air conditioning unit

ESS 5 Series Key Features

Technical Characteristics
Parameter
Description
Sensor typeFlush diaphragm, absolute (A), gauge (R) or sealed gauge (S)
TechnologyCeramic Piezoresistive
Diaphragm materialCeramic Al2O3 96% (standard), 99.6% or sapphire (on request)
Weight≤ 8g (ceramic cell only)
Response time≤ 1ms
Supply voltage2...30Vdc
Offset‐ 0.1 ± 0.1 mv/v(Other nominal values available on request)
Current cons.≤ 1.3mA @ 10V
Operating‐40℃...+135℃ (‐40 °F...+275 °F)
Storage temperature‐40℃...+150℃ (‐40 °F...+302 °F)
Impedance11 ± 30%kΩ
Metallux ME501ME505 Ceramic Pressure Sensor
Technical Characteristics
Nominal pressure FSObar0.5125102050100200400600800
Overload pressurebar1241015351001503505007501000
Burst pressurebar2361525651202005006509501250
Vacuum capabilitybar-0.1-0.5-1-1-1-1-1-1-1-1-1-1
Type-RA/R/SA/R/SA/R/SA/R/SA/R/SA/R/SSSSSS
Total thicknessmm6.156.176.236.306.356.556.706.707.057.327.558.05
Sensitivitymv/v1.4-2.42.0-3.62.3-3.52.3-4.03.1-5.52.4-4.04.0-6.03.0-4.82.5-3.93.1-4.83.1-4.82.0-3.5
Accuracy%/fs0.4/0.90.3/0.90.3/0.60.2/0.40.2/0.50.2/0.50.2/0.50.2/0.50.4/0.90.5/1.00.5/1.00.5/1.0
Thermal offset shift(typ./max.)%/fs/k± 0.005 / ± 0.04025 °C...85 °C(77 °F...185 °F)
Thermal span shift%/fs/k≤ ± 0.0100 °C...70 °C≤ ± 0.012-25 °C...0 °C / 70 °C...85 °C
Reliability tests-1000 hours @85 °C (185 °F) & 85 %RH500 thermal shocks ‐40°C...+150 °C (‐40 °F... +302 °F)