SIEMENS
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Siemens IK PI · 2015
Industrial Wireless Communication
WirelessHART
SITRANS TF280, WirelessHART
6
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Overview
SITRANS TF280 for flexible and cost-effective temperature
measurements
•
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 lighting
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Stand-by (deep sleep phase) on device can be turned on and
off 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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Housing meets IP65 degree of protection
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Supports all Pt100 sensors as per IEC 751/DIN EN 60751
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Benefits
The SITRANS TF280 is a temperature 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 temperature measurement
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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 also 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 TF280 is a WirelessHART field device for
measuring temperature with a Pt100 sensor.
This sensor can be installed directly on the field device, or con-
nected at an offset with a cable connection. On the wireless
communication side, the transmitter supports the WirelessHART
standard. A HART modem can be connected to the transmitter
particularly for initial parameterization.
It can be used in all industries and applications in non-explosive
areas.
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Design
The SITRANS TF280 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
extend the service life of the battery.
The SITRANS TF280 transmitter features a cable gland or a
Pt100 sensor including protective piping.
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Function
The SITRANS TF280 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 catalog chapter 8 or at
.
Detailed information on IE/WSN-PA LINK can be found
in the FI 01 catalog chapter 8 or at
.
© Siemens AG 2014