Low range differential pressure transmitter. Ranges 0 - 25, 0 - 50, 0 - 100, 0 - 150, 0- 300, 0 - 500, 0 1000, 0 -1600 and 0 - 2500 Pascals, accuracy +- 1% (optional +- 0.4%) with 4 - 20mA or 0 - 10v outputs. Can be supplied with optional integral LCD display. Over range pressure 10psi. Can also be used for flow measurement in ducts using the AV-EP insertion multipoint air velocity probe.
The PA267 is designed for overpressure, under pressure, and differential pressure measurements of air and other neutral gases. It is recommended that for applications where control is involved, the high accuracy version is used. The measurement cell uses an advanced design of capacitive ele-ment to ensure excellent linearity and zero stability. The differential pressure to be measures induces a movement of the stainless steel diaphragm which is converted to an electronic output signal by a capacitance measurement and a unique electronic circuit.
2 accuracy levels to suit the application
Available in ranges as low as 0-25Pa
Overpressure safety margin 10 psi
IP65 housing with 20mm cable entry and gland
Specification
Accuracy
Standard High
Overall
+/- 1.00% fsd +/- 0.40% fsd
Linearity
+/- 0.98% fsd +/- 0.33% fsd
Hysteresis
+/- 0.20% fsd +/- 0.20% fsd
Repeatability
+/- 0.10% fsd +/- 0.10% fsd
Temperature error
<+/- 0.06% accross range at 21° C
Overpressure
10 psi
Rupture
10 psi
Pressure connections
Push fit for 6mm ID tube
Output - current
4-20mA, load = 100 to 800 ohms
Output - voltage
0-10Vdc ( outut impedance < 100k ohms )
Power supply ( 4-20mA )
9 - 30 Vdc
Power suppky ( 0-10v )
9-30Vac or 12-40Vdc
Reaction speed
20mS without filter, 40 mS with filter
Electrical connections
Screw terminal for 1.5mm2 max. cable
Diaphragm
Stainless steel
Housing
Glass filled polycarbonate to UL94V-0
Protection
IP65
Operating temperature
-18°C to +65° C
Dimensions
158 x 80 x 60mm max
Weight
255 grams
Product Codes: NB For 0.4% accuracy add –AH suffix For voltage output add –V suffix PA267-25 0 to 25Pa PA267-50 0 to 50Pa PA267-100 0 to 100Pa PA267-150 0 to 150Pa PA267-300 0 to 300Pa PA267-500 0 to 500Pa PA267-1000 0 to 1000Pa PA267-1600 0 to 1600Pa PA267-2500 0 to 2500Pa PA267-LCD Integral LCD option A ‘duct fixing kit’ is supplied with the PA267 con-sisting of 2m of 6mm ID plastic tubing, 2 x pilot tubes, 4 x fixing screws.
Velocity Measurement: The PA267 can be used for accurate air velocity meas-urement in applications such as variable fan speed con-trol in VAV applications. If the BEMS control system is not capable of calculating the velocity from the differ-ential pressure reading (performing a square root extraction) then an IO-VP/AV module can be used to provide a velocity output to the controller.
NB The units are calibrated with the transducer in the vertical position. The zero adjustment may be used to cor-rect any shift in output resulting in mounting the unit other than vertically.
For further information,
technical advice, or a
quotation please call or
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us. If you are not sure which
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PA267
Field mounting air DP transmitter in IP65 enclosure, range 0 - 100 pascals to 0-2500 pascals, accuracy 1% FSD, O/P 4-20mA or 0-10v, power supply 10 - 30 vDC.
Tel +44 (0)
845 9000 601 Fax +44 (0) 845 9000 602
info@omniinstruments.co.uk
Tel +1-866-849-3441
Fax +1-866-628-8055
info@omniinstruments.net
Tel +61 (0)282 442 363 Fax +61 (0)294 751 278 info@omniinstruments.com.au
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