WirelessHART Pressure Transmitter SITRANS P280

Mode of operation

Measuring principle

piezo-resistive

Measured variable

Gauge and absolute pressure

Gauge pressure input

Measuring range

Overload limit/Bursting pressure

0 ... 2 bar g

5 bar g (72.5 psi g)

0 ... 10 bar g

50 bar g (363 psi g)

0 ... 50 bar g

250 bar g (1740 psi g)

0 ... 200 bar g

650 bar g (7250 psi g)

0 ... 400 bar g

650 bar g (7250 psi g)

Units

mbar, bar, mmH2O, inH2O, atm, Torr, gcm², kgcm², mPa, kPa, Pa, psi, mmHG, mmH2O, ftH2O, inHG, inH2O

Absolute pressure input

Measuring range

Overload limit/Bursting pressure

0 ... 2 bar a

5 bar a (72.5 psi a)

0 ... 10 bar a

50 bar a (363 psi a)

0 ... 50 bar a

250 bar a (1740 psi a)

0 ... 200 bar a

650 bar a (7250 psi a)

0 ... 400 bar a

650 bar a (7250 psi a)

Units

mbar, bar, mmH2O, inH2O, atm, Torr, gcm², kgcm², mPa, kPa, Pa, psi, mmHG, mmH2O, ftH2O, inHG, inH2O

Output

Output signal

2.4 GHz Wireless signal with TSMP (Time Synchronized Mesh Protocol)

Measuring accuracy

as per EN60770-1

Error in measurement
(including hysteresis and repeatability, at 25 °C (77 °F))

max. ± 0.325 % of sensor's span

Long-term drift

max. ≤ 0.25 % of sensor's/yearly span

Ambient temperature effect

max. ≤ 0.025 %/K of sensor's span

Rated conditions

Ambient conditions

Ambient temperature

-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.)

Storage temperature

-40 ... +85 °C (-40 ... +185 °F)

Relative humidity

< 95 %

Climatic class

4K4H in accordance with
EN 60721-3-4
(stationary use at locations not protected against weather)

Degree of protection

IP65/NEMA 4

Design

Enclosure material

low-copper die-cast aluminum, GD-AISi12

Shock resistance

in accordance with DIN EN 60068-2-29/03.95

Resistance to vibration

in accordance with DIN EN 60068-2-6/12.07

20 ≤ f ≤ 2000 Hz

0.01 g²/Hz

Weight

• without battery

1.5 kg (3.31 lb)

• with battery

1.6 kg (3.53 lb)

Dimensions (W x H x D)

See Dimensional drawing

Process connection

• G½B male thread as per EN837-1
• ½-14 NPT

Sensor break

Is recognized

• Displays and controls

Display (with illumination)

• Size of display

104 x 80 pixels

• Number of digits

adjustable

• Number of spaces after comma

adjustable

Setting options

• on site with 3 push buttons
• with SIMATIC PDM or HART Communicator

Auxiliary power

Battery

3.6 V DC

Communication

Radio

WirelessHART V7.1 conforming

Transmission frequency band

2.4 GHz (ISM-Band)

Transmission range under reference conditions

Up to 250 m (line of sight) in outside areas

Up to 50 m (greatly dependent on obstacles) in inside areas

Communication interfaces

• HART communication with HART modem
• WirelessHART

Certificates and approvals

Wireless communication approvals

R&TTE

FCC

Classification according to PED 97/23/EC

Gases: Fluid group 1

Liquids: Fluid group 1;

meets requirements as per Section 3, Subsection 3 (good engineering practice)