85C Media Isolated mV Output Pressure Sensor

Brand: American Sensor Technologies Inc

85C Media Isolated mV Output Pressure Sensor

Brand: American Sensor Technologies Inc
The 85 Compensated is a small profile, media compatible, piezoresistive silicon pressure sensor packaged in a 316L stainless steel housing.

The 85 compensated is offered in a weldable package or with a variety of threaded fittings such as 1/4 and 1/8 NPT, 1/4 BSP as well as custom process fittings. The 85 compensated is designed for OEM applications where compatibility with corrosive media is required. The sensing package utilizes silicon oil to transfer pressure from the 316L stainless steel diaphragm to the sensing element. 

A ceramic substrate is attached to the package that contains laser-trimmed resistors for temperature compensation and offset correction. An additional laser trimmed resistor is included which can be used to adjust an external differential amplifier and provide span interchangeability to within ±1%. 

Please refer to the 85 uncompensated and constant voltage datasheets for more information on different features of the 85.
Features
  • Weldable and Threaded Process Fittings
  • -40º to +125ºC Operating Temperature Range
  • Up to ±0.1% Pressure Non Linearity
  • 1.0% Interchangeable Span (provided by gain set resistor)
  • Solid State Reliability

Specifications

Accuracy

  • ± 0.20 % of Span - Pressure Non-Linearity

Ambient Temperature Range

  • 25° C (77° F)

Applications

  • Fresh & Waste Water Measurements
  • Medical Equipment
  • Partial Vacuum Gas Measurement
  • Pressure Transmitter
  • Process Control
  • Tank Level Systems (RV & Industrial)

Approvals & Certifications

  • RoHS

BSP Connection

  • 1/4” BSP

Compensated Temperature

  • -20° to 85° C (-4° to 185° F)

Enclosure, Body Material

  • 316 Stainless Steel
  • 316L Stainless Steel

Hysteresis

  • ± 0.10 % of Span - Pressure Hysteresis
  • ± 0.25 % of Span - Thermal Hysteresis: Span & Offset

Insulation Resistance

  • 50 megaohms at 50 Vdc

Load Impedance

  • 5 megaohms - Output Load Resistance

Media

  • Liquids & Gases

NPT Connection

  • 1/4” NPT
  • 1/8” NPT

Operating Temperature - Sensor

  • -40° to 125° C (-40° to 257° F)

Output

  • ± 2 mV - Zero Pressure Output
  • 75-150 mV - Span Value

Output Noise

  • 1 µV Peak-to-Peak - Output Noise (10 Hz to 1 kHz)

Power Requirement

  • 1.5 mA - Supply Current

Pressure Range

  • psi: 0 to 500 (kPa: 0 to 3,447, bar: 0 to 34.47)

Pressure Type

  • Absolute
  • Gauge

Repeatability

  • ± 0.02 % of Span

Resistance

  • 2,000 to 5,800 ohms - Input Resistance
  • 4,000 to 6,000 ohms - Output Resistance

Response Time

  • 0.1 millisecond - Response Time (10 to 90 %)

Span - Minimum

  • 1 % - Interchangeable Span

Stability

  • ± 0.10 % of Span - Long Term Stability: Span & Offset
  • ± 0.25 % of Span - Long Term Stability: Offset

Storage Temperature

  • -50° to 125° C (-58° to 257° F)

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