Compare Model Drawings, CAD & Specs Full Scale Range Analog Output Fitting Type Availability Price
228a baratron 0.2-1000 torr differential capacitance manometer with 2 trip points
Vacuum Pressure Transducer, Differential, 10 Torr, 0.25 in. OD Tube, 0-5 VDC, Bidirectional
10 Torr 0 - 5 VDC 0.25 in. OD tube
228a baratron 0.2-1000 torr differential capacitance manometer with 2 trip points
Pressure Transducer, Differential, 100 kPa, 3/8 in. OD Tube, 0-5 VDC, Bidirectional
100 kPa 0 - 5 VDC 0.1875 in. OD tube
228a baratron 0.2-1000 torr differential capacitance manometer with 2 trip points
Pressure Transducer, Differential, 200 mbar, ISO-KF & 1/4 in. Tube, 0-10 VDC, Unidirectional
200 mbar 0 - 10 VDC ISO-KF and 0.25 in. OD tube
228a baratron 0.2-1000 torr differential capacitance manometer with 2 trip points
Pressure Transducer, Differential, 50 in. H2O, 4 VCR Male, 0-1 VDC, Bidirectional
50 in. H2O 0 - 1 VDC 4 VCR male

Configuration Options

Description
  228a baratron 0.2-1000 torr differential capacitance manometer with 2 trip points 228A Differential Capacitance Manometer, 2 Trip Points, 228A Series

Specifications

  • Type
    Pressure Transducer
  • Sensor Type
    Capacitance Manometer
  • Measurement Type
    Differential
  • Full Scale Pressure Ranges
    0.2, 1, 2, 5, 10, 20, 50, 100, 200, and 1000 Torr and equivalents in kPa, mbar, inches H2O, and cm H2O
  • Analog Output
    0-1 VDC, 0-5 VDC, or 0-10 VDC > 10 kΩ load
  • Fitting Type
    Standard: 1/4 inch OD (6.4 mm) tubes
    Optional: Various
  • Electrical Connector
    15-pin high-density D-subminiature
  • Resolution
    0.01% of Full Scale
  • Accuracy
    0.50% of Full Scale unidirectional or bidirectional standard
    0.30% of Full Scale unidirectional or bidirectional
    0.30% of Reading (unidirectional only) optional
  • Zero Temperature Coefficient
    0.1% Full Scale/°C for standard accuracy specification
  • Span Temperature Coefficient
    0.04% of Reading/°C
  • Sensor Internal Volume
    Measurement Side (Px):1.4 cm
    Reference Side (Pr):9.0 cm
    (when equipped with standard 1/4-inch (6.4 mm) O.D. inlet and reference tubes)
  • Operating Temperature Range
    0° to 50°C
  • Maximum Overpressure
    Measurement Side (Px):120% of Full Scale or 20 psi (140 kPa), whichever is higher
    Reference Side (Pr):120% of Full Scale
  • Maximum Line Pressure
    40 psig (275 kPa)
  • Materials Exposed to Process Gases
    Measurement Side (Px):Inconel
    Reference Side (Pr):Inconel, ceramic, palladium, stainless steel, glass
  • Trip Points
    Two process pressure trip points, independently adjustable from -100% to +100% of Full Scale
  • Trip Relays
    DPDT contacts rated at 1.0 amps at 30 VDC or 0.3 amps at 120 VAC
  • Power Requirements
    ±15VDC (±5%) or +16 to +30VDC @ 75 mA, ripple less than 20 mV
  • Compliance
    CE, SEMI S2

Features

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