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.
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.
|Operating Ranges||22 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 Pressure||130 inHg (4375 mbar) absolute|
|Pressure Media||Compatible with non-corrosive gases |
Insensitive to media density
|Readout and Display||999999 capability LCD digits 0.54 in (13.6 mm) high with additional 16 text characters.|
|Display Overload||Instrument capable of nominal 110% full scale (FS) for each range. Above this, error code will flash.|
|Resolution||0.0003 inHg (0.01 mbar)|
|Response||2 readings per second nominal on digital display|
|Operating Modes||A) Local pressure (QFE) |
B) Sea level pressure (QFF) from user set height
C) Altitude above user set datum
|Process Features||Maximum/Minimum, tare and programmable filter available in all operating modes.|
|Pressure Units||24 pressure units plus altitude in feet (ft) or meters (m)|
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).
|Stability||Better than 100 ppm per annum.|
|Temperature Range||Operating: 15°F to 120°F (-10°C to 50°C) |
Storage: -40°F to 160°F (-40°C to 70°C)
|Safety||Electrical and mechanical safety: EN61010 |
EMC emissions: EN50081-1
EMC immunity: EN50082-1
Certification: CE Marked
|Power Supply||Three 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 Interface||RS232 via six-way LEMO socket (see Option C)|
|Pressure Connection||Accepts 1/4 in OD / 5/32 in ID tubing (6 mm OD / 4 mm ID)|
|Weight||1.1 lb (0.5 kg) nominal|
|Dimensions||7.5 in x 3.5 in x 1.4 in (190 mm x 90 mm x 36 mm) nominal|