SIEMENS
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Siemens IK PI · 2015
Industrial Wireless Communication
WirelessHART
SITRANS P280 for gauge and absolute pressure
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Overview
SITRANS P280 for flexible and cost-effective applications in
pressure monitoring
•
Supports the WirelessHART standard (HART V 7.1)
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Very high security level for wireless data transmission
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Built-in local user interface (LUI) with 3-button operation
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Optimum display and readability using graphics display
(104 x 80 pixels) with integrated background illumination
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Stand-by (deep sleep phase) can be activated and deacti-
vated on the device with a push of a button
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Battery power supply
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Battery service live up to 5 years
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Extend battery service life with HART modem interface which
can be shut off
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Optimized power consumption through new design, and
increase in battery service life
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Simple configuration thanks to SIMATIC PDM
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Device meets IP65 degree of protection
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Can be used for absolute and gauge pressure measurements
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Benefits
The SITRANS P280 is a pressure transmitter that features
Wireless HART as the standard communication interface.
Also available is a wired interface to connect a HART modem:
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Flexible pressure measurements
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Save costs on writing for difficult installation conditions.
Wireless technology offers cost advantages in cases where
extensive wiring cots would normally apply.
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It enables additional hitherto unfeasible measuring points,
particularly for monitoring purposes.
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Easy installation on moveable equipment parts
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Enables cost-effective temporary measurements, for example
for process optimizations.
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Optimum addition to wired communication and expansion of
solution options for system solutions in process automation
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Application
The SITRANS P280 is a WirelessHART field device for measuring
absolute and gauge pressure.
The measuring ranges for absolute and gauge pressure
measurements are 0 to 1.6, 10, 50, 200 and 320 bar (0 to 23,
145, 725, 2900 and 4641 psi).
The sensor is integrated into the transmitter casing.
On the wireless communication side, the transmitter supports
the WirelessHART standard. For initial commissioning in
particular, a HART modem can be connected to the transmitter.
You can alternatively opt for simple and easy local operation
using the pushbuttons w/o any additional handset devices.
It can be used in all industries and applications in non-explosive
areas.
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Design
The SITRANS P280 has a robust aluminum enclosure and is
suitable for outside use. It conforms with the IP65 safety class.
The operating temperature range is -40 to +80 °C (-40 to
+176 °F). Power supply is provided through an integrated
battery, which is available as an accessory. The device is only
approved for operation with this battery.
The aerial features a rotatable joint which can be used for
directional alignment. Wireless signals can thus be optimally
received and transmitted.
A special highlight is the option for direct operation on the
device. The operating strategy used in this case seamlessly
integrates into the strategy of all new Siemens field devices.
Using the device's control buttons, it is easy to turn the HART
modem interface of the device on and off. The device can be put
to passive status and reactivated at any time. This helps to ex-
tend the service life of the battery.
The SITRANS P280 transmitter features a ceramic measuring
cell for gauge and absolute pressure measurements.
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Function
The SITRANS P280 can integrate itself into a WirelessHART
network. It can be parameterized and operated through this
network. Measured process values are transported via the net-
work to the SIEMENS IE/WSN-PA link.
Field device data received by the IE/WSN-PA LINK is transmitted
to the connected systems, for example the process control sys-
tem SIMATIC PCS 7. For an introduction to the mode of operation
of WirelessHART, please see the FI 01 catalogue, section 9 or
.
Detailed information on IE/WSN-PA can be found in the FI 01
catalogue, section 8 or
.
© Siemens AG 2014