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HIGH ACCURACY BAROMETRIC
PRESSURE TRANSMITTER
FAST RESPONSE AND LONG TERM RELIABILITY
Barometric (Absolute)
Pressure Ranges
500-1100 hPa (mb) to
800-1100 hPa (mb)
PX2780 Series
Standard
Applications
U Environmental
Monitoring Systems
U Weather Measurement
Systems
U Environmental
Data Logging
U Laboratory and Test
Station Monitoring
PRESSURE TRANSDUCERS
B
The PX2780 high accuracy
barometric pressure transducers are
designed for applications in industry
and science where accuracy, fast
dynamic response and long term
stability are important. The sensor
and electronics are packaged
in a rugged stainless steel and
polyester case. A removable 5-pin
terminal strip makes fast and secure
connections. A high accuracy
ceramic sensor is coupled with a
digital compensation circuit using a
custom ASIC to assure consistent
accuracy and reliability over a broad
range of environmental conditions.
There is also a sleep mode where
the unit only draws 1 micro amp
that allows almost instant turn on/
reading for remote applications.
SPECIFICATIONS
Accuracy: See table on next page
Resolution: 0.1 hPa (mb)
Long Term Stability: <±0.1 hPa
(mb)/year
Warm-Up Time: <1 second
Warm-Up Shift: <0.1 hPa (mb) maximum
Response Time: <100 ms
Proof Pressure: 1500 hPa (mb)
PX2780-600B5V shown
larger than actual size.
Burst Pressure: 2000 hPa (mb)
Storage Temperature: -60 to 120°C
(-76 to 248°F)
Operating Temperature: -40 to 60°C
(-40 to 140°F)
Compensated Range: -40 to 60°C
(-40 to 140°F)
Zero Shift:
Barometric: <±0.18% full scale/50°C
(<±0.2% full scale/100°F)
Sensitivity Effects: <±0.09% full
scale/50°C (<±0.1% full scale/100°F)
B-1
Excitation: 9.5 to 28 Vdc (3 mA
operate mode, 1 µA sleep mode)
3- or 4-wire circuit
Output: 0 to 5 Vdc
Full Scale Span Setting: ±5 mV
Zero Setting: ±5 mV
Output Impedance: <10 Ω
Electrical Connection: Removable
5-pin terminal strip
Pressure Connection:
Pressure Media: Non-condensing air
or gas
Weight: 137 g (4.8 oz)
Mounting: Mounting plate
1
⁄
8" barbed fitting
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76.7
(3.02)
59.9
(2.36)
2X ø 0.140
2X Ø .140
MOUNTING HOLES
FOR #6 OR #4 SCREW
25.4
(1.0)
90.3
(3.56)
60
(2.36)
BARBED PRESSURE FITTING
2X Ø .290
2X ø 0.290
CONNECTOR, 5 POSITION
BL 3.5 SCREW CLAMP
Dimensions: mm (inch)
ø = diameter
ACCURACY [hPa (mbar)] RSS*
RANGE (hPa)
TEMPERATURE 500 600 800
20°C (68°F) ±0.6 ±0.5 ±0.3
0 to 40°C (32 to 104°F) ±1.2 ±1.0 ±0.6
-20 to 50°C (-4 to 122°F) ±2.0 ±1.5 ±1
-40 to 60°C (-40 to 140°F) ±2.5 ±2.0 ±1.5
Non-linearity ±0.5 ±0.4 ±0.25
Hysteresis ±0.06 ±0.05 ±0.03
Non-repeatability ±0.04 ±0.03 ±0.02
* RSS of end point non-linearity, hysteresis, non-repeatability and calibration uncertainty
DP25B-E shown smaller
than actual size. For details
visit omega.com/dp25b
To Order
MODEL NUMBER BAROMETRIC RANGES (ABSOLUTE PRESSURE)
PX2780-500B5V
PX2780-600B5V
PX2780-600NB5V
PX2780-800B5V
PX2780-800NB5V
Comes complete with NIST traceable calibration certificate and operator’s manual.
Ordering Examples: PX2780-800B5V, high accuracy barometric transmitter with 0 to 5 Vdc
output, range 500 to 1100 hPa (mb).
PX2780-600NB5V, high accuracy barometric transmitter with 0 to 5 Vdc output, range 600 to
1060 hPa (mb).
B-2
500 to 1100 hPa (mb)
600 to 1100 hPa (mb)
600 to 1060 hPa (mb)
800 to 1100 hPa (mb)
800 to 1060 hPa (mb)
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