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WirelessHART Pressure Transmitter SITRANS P280
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Mode of operation
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Measuring principle
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piezo-resistive
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Measured variable
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Gauge and absolute pressure
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Gauge pressure input
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Measuring range
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Overload limit/Bursting pressure
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0 ... 2 bar g
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5 bar g (72.5 psi g)
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0 ... 10 bar g
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50 bar g (363 psi g)
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0 ... 50 bar g
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250 bar g (1740 psi g)
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0 ... 200 bar g
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650 bar g (7250 psi g)
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0 ... 400 bar g
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650 bar g (7250 psi g)
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Units
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mbar, bar, mmH2O, inH2O, atm, Torr, gcm², kgcm², mPa, kPa, Pa, psi, mmHG, mmH2O, ftH2O, inHG, inH2O
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Absolute pressure input
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Measuring range
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Overload limit/Bursting pressure
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0 ... 2 bar a
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5 bar a (72.5 psi a)
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0 ... 10 bar a
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50 bar a (363 psi a)
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0 ... 50 bar a
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250 bar a (1740 psi a)
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0 ... 200 bar a
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650 bar a (7250 psi a)
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0 ... 400 bar a
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650 bar a (7250 psi a)
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Units
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mbar, bar, mmH2O, inH2O, atm, Torr, gcm², kgcm², mPa, kPa, Pa, psi, mmHG, mmH2O, ftH2O, inHG, inH2O
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Output
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Output signal
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2.4 GHz Wireless signal with TSMP (Time Synchronized Mesh Protocol)
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Measuring accuracy
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as per EN60770-1
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Error in measurement
(including hysteresis and repeatability, at 25 °C (77 °F))
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max. ± 0.325 % of sensor's span
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Long-term drift
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max. ≤ 0.25 % of sensor's/yearly span
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Ambient temperature effect
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max. ≤ 0.025 %/K of sensor's span
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Rated conditions
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Ambient conditions
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Ambient temperature
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-40 ... +80 °C (-40 ... +176 °F) (in ambient temperatures below -20 °C (-4 °F) and above +70 °C (158 °F), readability of the display is limited.)
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Storage temperature
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-40 ... +85 °C (-40 ... +185 °F)
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Relative humidity
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< 95 %
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Climatic class
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4K4H in accordance with
EN 60721-3-4
(stationary use at locations not protected against weather)
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Degree of protection
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IP65/NEMA 4
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Design
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Enclosure material
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low-copper die-cast aluminum, GD-AISi12
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Shock resistance
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in accordance with DIN EN 60068-2-29/03.95
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Resistance to vibration
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in accordance with DIN EN 60068-2-6/12.07
20 ≤ f ≤ 2000 Hz
0.01 g²/Hz
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Weight
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1.5 kg (3.31 lb)
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1.6 kg (3.53 lb)
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Dimensions (W x H x D)
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See Dimensional drawing
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Process connection
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- G½B male thread as per EN837-1
- ½-14 NPT
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Sensor break
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Is recognized
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Display (with illumination)
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104 x 80 pixels
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adjustable
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- Number of spaces after comma
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adjustable
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Setting options
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- on site with 3 push buttons
- with SIMATIC PDM or HART Communicator
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Auxiliary power
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Battery
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3.6 V DC
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Communication
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Radio
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WirelessHART V7.1 conforming
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Transmission frequency band
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2.4 GHz (ISM-Band)
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Transmission range under reference conditions
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Up to 250 m (line of sight) in outside areas
Up to 50 m (greatly dependent on obstacles) in inside areas
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Communication interfaces
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- HART communication with HART modem
- WirelessHART
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Certificates and approvals
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Wireless communication approvals
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R&TTE
FCC
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Classification according to PED 97/23/EC
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Gases: Fluid group 1
Liquids: Fluid group 1;
meets requirements as per Section 3, Subsection 3 (good engineering practice)
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