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ESS501 Ceramic Pressure Sensor

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Metallux ME501 Ceramic Thick Film Pressure Sensor 

Metallux ME501/ME505 pressure sensors are 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 and the diaphragm’s opposite side can therefore be exposed directly to the medium to be measured. Because of the Al2O3 ceramic excellent chemical resistance (aggressive gases, most of solvents and acids, etc.), no additional protection is normally required. Metallux ME501/ME505 sensors are thermally compensated by laser adjustable PTC resistors and the use of ceramic ensures a high linearity across the entire range of measurement, reducing effects of hysteresis to a minimum.

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)