Hot Cathode Vacuum Transducer, Yttria, NW25 ISO-KF, RS485, 1 Relay

Technical Specs

  • Type
    Vacuum Gauge Module
  • Display
    No
  • Interface
    RS485
  • Digital Communication
    RS485
  • Relays
    1
  • Fitting Type
    NW25 ISO-KF
  • Absolute Measurement Range
    1.0 x 10-9 to 0.05 Torr
  • Operating Temperature
    0 - 40°C ambient, non-condensing
  • Maximum Bakeout Temperature
    200°C (with electronics removed)
  • Storage Temperature
    -40 - 70°C
  • Relay Contact Rating
    1 A at 30 VDC resistive load, 0.5 A at 125 VAC non-inductive
  • Power Requirements
    24 VDC ±15%, 12 Watts maximum
  • Internal Volume
    10.8 cm3 (0.66 in.3) to the port screen
  • Exposed Materials
    304 stainless steel, alumina, tantalum, tungsten, CuAg eutectic, Kovar
  • Electronic Casing and Flange
    Aluminum extrusion
  • Compliance
    CE, SEMI S2
  • Filament
    Yttria-coated Iridium
  • Connectors
    9-pin type D male
  • Units
    Torr
  • RS485 Adjustable Parameters
    Filament on/off, degas on/off, emission current select, filament select, set point (value, direction, and hysteresis)
  • RS485 Communications
    ASCII, 8 data bits, one stop-bit, no parity, no handshake (default values)
  • RS485 Baud Rates
    19200 Baud (default value)
  • RS485 Relay Configuration
    Single-pole, double-throw (SPDT)
  • Micro-Ion Gauge Sensitivity
    20 Torr, 15 mbar, 0.15 Pa
  • Overpressure Protection
    Transducer self-protects by turning off filament power at upper pressure limit (adjustable)
  • X-ray Limit
    <3 x 10-10 Torr, <4 x 10-10 mbar, <4 x10-10 Pa
  • Emission Current
    0.02 mA, 1.0 mA, or 4 mA
  • Degas
    Electron bombardment, 3 Watts with 2-minute timer

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