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Agilent FRG-720/730 Pirani Bayard-Alpert Gauge

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Code: #15661

Supplier: Agilent Technologies, Inc.

The FRG-720 and FRG-730 combine Agilent's Pirani and Bayard-Alpert sensor into a single compact design that provides measuring capability from 5 x 10-10 mbar to atmosphere (3.8 x 10-10 Torr to atmosphere). Combining these two technologies into a single unit reduces complexity and integration challenges while protecting the Bayard-Alpert sensor from premature burnout.

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  • - Combination gauge Bayard-Alpert and Pirani provides wide measurement range from 5 x 10-10 mbar to atmosphere
    - Pirani interlock – protects Bayard-Alpert sensor from premature burnout and contamination effects from high pressure operation
    - Long-life ytterium oxide-coated iridium filament brings a rugged design for a wide-range of applications
    - Set point control
    - LCD display option allows monitoring of pressure readings easily
    - Profibus communication option facilitates simplified network integration.

  • Measurement range (Air, O2, CO, N2)

    5 x 10-10 to 1000 mbar (3.8 x 10-10 to 760 Torr)

    Accuracy

    10-8 to 10-2 mbar/torr – ± 15% of reading

    Repeatability

    10-8 to 10-2 mbar/torr – ± 5% of reading

    Degas

    p < 7.2 x 10-6 mbar – electron bombardment, max. 3 min

    Pressure, maximum

    2 bar absolute

    Temperature

    Operation
    (ambient)

    Storage

    Bakeout at flange w/extension

    Bakeout at flange wo/extension

    Bakeout w/electroncs removed

    0 to 50 °C

    –20 to +70 °C

    150 °C

    80 °C

    150 °C

    Supply voltage

    20 to 28 VDC, 1.4 A on startup for 200 msec, 0.8 A operating

    Output signal analog
    Measurement range
    Voltage vs. pressure
    Error signal
    Minimum loaded impedance

    0 to 10 V
    0.774 to 10.0 V
    0.75 V/decade
    0.3/0.5 V
    10 kΩ

    Communication interface

    RS-232C

    Electrical connection

    D-sub, 15 pin, male

    Maximum cable length

    100 m (330 ft)

    Materials exposed to vacuum

    Yt2O3, Ir, Pt, Mo, Cu, W, NiFe, NiCr, stainless steel, glass

    Internal volume

    KF/CF

    24 cm3 (1.46 in3) /34 cm3 (2.1 in3)

    Weight

    KF/CF

    285g/550g

    Protection type

    IP30

    Setpoint relays (1) for FRG-730

    Range

    Relay contact

    Hysteresis

    Contact rating

    1 x 10-9 to 100 mbar

    n.o., potential free

    10% of reading

    30 V/0.5 A DC

    Profibus Option

    Baud rates

    9.6/19.2/93.75/187.5/500 kBaud; 1.5/12 mBaud

    Address

    2 switches (address 00 – 127) or network programmable

    Digital functions

    Read pressure, select units (Torr, mbar, Pa); degas function, Pirani full scale adjust; monitor gauge status; safe state allows definition of behavior in case of error; detailed alarm and warning information

    Analog functions

    0 to 10 V analog output pressure indication; two setpoint relays A + B

    Setpoint relays (2)

    Range

    Relay contact

    Hysteresis

    Contact rating

    1 x 10-9 to 100 mbar

    n.o., potential free

    10 % of reading

    60 V/0.5 A DC

 

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