Druck DPI740 Precision Pressure Indicator

Druck DPI740 Precision Pressure Indicator, barometer


SKU: DPI740 Categories: ,


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Product Overview: Druck DPI740 Precision Pressure Indicator



The DPI 740 is a portable battery powered precision barometer, providing outstanding capabilities in a hand-held package.This instrument can confidently be used in both laboratory and field applications as a first-class barometric reference device, with the recommended recalibration period being one year.


  • Ranges to 103 inHg absolute
  • Accuracy: ±0.004 inHg absolute
  • 6 digit resolution LCD display
  • Multiple pressure scales and aeronautical units
  • Alkaline or rechargeable batteries
  • Lightweight hand-held rugged design
  • RS 232 output


    The DPI 740 is a portable battery powered precision barometer, providing outstanding capabilities in a hand held package. The fundamental sensor technology employed within this instrument is the Druck resonant pressure transducer (RPT). This vibrating element sensor not only provides accuracies of ±0.004 inHg (±0.15 mbar) but equally important has a calibration stability of better than 100 ppm per year. The DPI 740 is widely used in laboratory and remote field applications for precision pressure reference.

    Pressure Measurement

    Operating Ranges22 to 34 inHg (750 to 1150 mbar) absolute
    1 to 38 inHg (35 to 1310 mbar) absolute
    1 to 77 InHg (35 to 2620 mbar) absolute
    1 to 103 inHg (35 to 3500 mbar) absolute
    Maximum Safe Working Pressure130 inHg (4375 mbar) absolute
    Pressure MediaCompatible with non-corrosive gases
    Insensitive to media density
    Readout and Display999999 capability LCD digits 0.54 in (13.6 mm) high with additional 16 text characters.
    Display OverloadInstrument capable of nominal 110% full scale (FS) for each range. Above this, error code will flash.
    Resolution0.0003 inHg (0.01 mbar)
    Response2 readings per second nominal on digital display
    Operating ModesA) Local pressure (QFE)
    B) Sea level pressure (QFF) from user set height
    C) Altitude above user set datum
    Process FeaturesMaximum/Minimum, tare and programmable filter available in all operating modes.
    Pressure Units24 pressure units plus altitude in feet (ft) or meters (m)


    Accuracy±0.02% FS
    For all pressure ranges includes: Combined non-linearity, hysteresis, repeatability, and temperature effects over 15°F to 120°F (-10°C to 50°C).
    Optional enhanced barometric accuracy available (see Option A).
    StabilityBetter than 100 ppm per annum.
    Temperature RangeOperating: 15°F to 120°F (-10°C to 50°C)
    Storage: -40°F to 160°F (-40°C to 70°C)
    SafetyElectrical and mechanical safety: EN61010
    EMC emissions: EN50081-1
    EMC immunity: EN50082-1
    Certification: CE Marked
    Position EffectNegligible
    Power SupplyThree each 1.5 V alkaline AA batteries for 20 hours nominal continuous operation. Programmable power down prolongs battery life. Battery low indicated by display symbol. Optional rechargeable NiCad batteries and external power adapter/charger unit available (see Option B).
    Communication InterfaceRS232 via six-way LEMO socket (see Option C)


    Pressure ConnectionAccepts 1/4 in OD / 5/32 in ID tubing (6 mm OD / 4 mm ID)
    Weight1.1 lb (0.5 kg) nominal
    Dimensions7.5 in x 3.5 in x 1.4 in (190 mm x 90 mm x 36 mm) nominal

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