Pressure Sensor
Products
  • Pressure range
    mmHg(1-15000)
    psi (0.014-300)
    kpa (0.1-2000)
    inH2O (0.4-8000)
    cmH2O (1-21000)
  • Pressure Output
    milliVolt
    Amplified
    Digital
    Current
  • Pressure Type
    Gauge
    Differential
    Absolute
  • Pressure Resolution
    14bits
    24bits
  • Package
    DIP
    SMT
    TO8/TO5
    Housing + Cable
  • Application
    Medical
    Industrial
    HVAC

Summer 2019, new released SA211 4-20mA output HVAC sensor

SA211 DATASHEET


The SA211Series Transmitter senses differential pressure and converts this pressure to aproportional high level 4-20mA output.   Thetransducer has been carefully calibrated before shipment to you and it shouldbe handled with the same care given any precision instrument.

Media Compatibility

The SA211 transducer is   designed to be used with clean dry air or non conducting gases.   Use with liquid or corrosives gasses will   damage the unit.

Environment
  The operating temperature limits of the SA211 are -25 to +70°C (-4°F to +158°F)

Pressure Connection

The SA211 is supplied   with two ports on the front side of the transducer and are marked “HIGH” and   “LOW”.   Use 1/8 inch ID push on tubing   to make pressure connections.   Ensure   that the proper pressure polarity is followed on Differential units by   connecting the most positive pressure to   “HIGH” connection of the transmitter.    For Unidirectional units, leave the “LOW” port

unconnected (Vented) and   connect only the   “HIGH” port.   

Mechanical Connection



The SA211 issupplied with 4 mounting tabs for wall installation.   Use standard dry wall anchors with screw diameterthat are less than 3.5mm in diameter. Space dry wall anchors per the mechanical drawing above and screw thetransmitter in place.   Orientation of thesensor is not of concern since the MEMS based sensor has little positionsensitivity.  

Electrical Connection


The SA211 is supplied with 3 electrical terminals available for wiring.   The middle center terminal should be NOTconnected.   A load resistor of 250 Ω isrecommended for 24 Vdc systems with Figure 1 showing a typical electricalinstallation. .   Use a supply voltagebetween 8-30Vdc for proper operation and never exceed the 32Vdc maximumvoltage.   For systems requiring differentload resistors, ensure the load resistor is within green area for yourspecified supply voltage