Specifications

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Siemens FI 01 · 2015 US Edition
Temperature Measurement
Transmitters for field mounting
SITRANS TF280 WirelessHART
2
Integration of a meshed network into SIMATIC PCS 7
■ Configuration
Configuration of the SITRANS TF280 transmitter may be carried
out as follows:
• Initial commissioning for the SITRANS TF280 with SIMATIC
PDM is generally carried out via a HART modem or the inte-
grated local user interface, since the network ID and join Key
must be set up on the device before it can be accepted and
integrated into the WirelessHART network.
• Once it is integrated into the network, the device can be con-
veniently operated with the WirelessHART network or onsite
with a HART modem or via the local user interface.
■ Technical specifications
The SITRANS TF280 can be mechanically installed in two ways:
• Direct at the measuring point with a M20x1.5 thread.
A connection to other threads can be done via the adapter.
• Remotely from the Pt100 sensor, which is connected to the
transmitter via a cable.
The data in the following table refer to the transmitter only ex-
cluding a connected sensor, except as noted otherwise.
SIMATIC
system
SIMATIC ET 200
with HART support
ES OS MS
IE/WSN-
PA LINK
SITRANS
AW210
SITRANS
AW200
SITRANS
AW210
SITRANS
TF280
SITRANS
P280
DP/PA
LINK
Industrial Ethernet
PROFIBUS
Wireless
HART
PROFIBUS PA
Input
Sensor
• Sensor type Pt100 as per
IEC 751/DIN EN 60751
1)
• Connection Two, three or four-wire system
• Measuring range
-200 ... +850 °C (-328 ... 1560 °F)
Cable length SITRANS TF280 and
Pt100 sensor element
 3m
Measuring accuracy
2)
Accuracy < 0.04 % of the measuring range
Long-term drift < 0.035 % of the measuring range
in first year
Ambient temperature effect max. 0.1 °C/10 K
Rated conditions
Ambient temperature -40...+80°C (-40...+176°F)
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 pro-
tected against weather)
Degree of protection IP65/NEMA 4
Max. permissible temperature at
transmitter for directly mounted
Pt100
80 °C (176 °F)
Design
Enclosure Die-cast aluminum
Shock resistance
in accordance with
DIN EN 60068-2-29 / 03.95
Resistance to vibration
DIN EN 60068-2-6/12.07
Weight
• without battery 1.5 kg (3.3 lb)
• with battery 1.6 kg (3.5 lb)
Dimensions (W x H x D)
See "Dimensional drawing"
Thread for cable gland/
sensor connection
M20x1.5
other threads via adapter
Material of protective tubes and
process connection (only for pre-
mounted sensor pipe)
Stainless steel 1.4404 (AISI 316L,
UNS S 31603, X2CrNiMo17-12-2)
Cable between transmitter and
sensor element
 3 m für two-, three- or four-wire
connections
Cable resistance < 1  (setting
range in m 0...9999)
Sensor break
Recognized
© Siemens AG 2015