SITRANS P280 WirelessHART Pressure Transmitter

Mode of operation

Measuring principle

piezo-resistive

Measured variable

Gauge and absolute pressure

Gauge pressure input

Measuring range

Overload limit/Burst pressure

0 ... 1.6 bar (0 ... 23 psi)

4 bar (58 psi)

0 ... 10 bar (0 ... 145 psi)

20 bar (290 psi)

0 ... 50 bar (0 ... 725 psi)

100 bar (1450 psi)

0 ... 200 bar (0 ... 2900 psi)

400 bar (5801 psi)

0 ... 320 bar (0 ... 4641 psi)

640 bar (9282 psi)

Units

mbar, bar, m4H₂O, i4H₂O, atm, Torr, gcm?, kgcm?, Pa, kPa, MPa, psi, mmHG, mmH₂O, ftH₂O, inHG, inH₂O

Absolute pressure input

Measuring range

Overload limit/Burst pressure

0 ... 1.6 bar a (0 ... 23 psi a)

4 bar a (58 psi a)

0 ... 10 bar a (0 ... 145 psi a)

20 bar a (290 psi a)

0 ... 50 bar a (0 ... 725 psi a)

100 bar a (1450 psia)

0 ... 200 bar a (0 ... 2900 psia)

400 bar a (5801 psia)

0 ... 320 bar a (0 ... 4641 psia)

640 bar a (9282 psia)

Units

mbar, bar, m4H₂O, i4H₂O, atm, Torr, gcm?, kgcm?, Pa, kPa, MPa, psi, mmHG, mmH₂O, ftH₂O, inHG, inH₂O

Output

Output signal

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

Measuring accuracy

According to IEC 60770-1

Error in measurement at limit setting including hysteresis and reproducibility

typically 0.17 % of span, max. 0.25 % of sensor span

Long-term stability

max. ± 0.25 % of sensor/year span

Effect of ambient temperature

max. ± 0.2 %/10 K of sensor 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

Permissible medium temperature

-40 ... 85 °C (-40 ... +185 °F)

Design

Enclosure material

low-copper die-cast aluminum, GD-AISi12 (Fe)

Shock resistance

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

Resistance to vibration

in accordance with EN 60068-2-6/ 12.07

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

• G?B male thread to EN 837-1
• ?-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 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

General product safety

CSA_US/C, CE, UL

Classification according to pressure equipment directive (PED 2014/68/EU)

Gases: Fluid group 1

Liquids: Fluid group 1;

meets requirements as per article 4, paragraph 4 (good engineering practice)