Temperature transmitters
Overview
Compact and head transmitters / SITRANS TH100 Slim (Pt100)
Compact and head transmitters / SITRANS TH100 Slim (Pt100)
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Overview
SITRANSTH100Slim is particularly suited for the production of com
pact thermometers with integrated transmitter.
Its cylindrical stainless steel enclosure is simply welded to the basic
body of the compact thermometer.
Its compact design makes the SITRANSTH100Slim the ideal solu
tion for manufacturers from a wide variety of industries.
For the parameterization, the SIPROM T software is used in combin
ation with the modem for SITRANS TH100/TH200.
Benefits
•
Transmitter in 2-wire system with M12 device plug for mounting
on compact thermometer.
•
Solution for easy and space-saving temperature measurements in
a variety of industries.
•
Programmable; as a result, the sensor connection, measuring
range and much more are programmable.
Application
The SITRANSTH100Slim transmitter can be used in combination
with Pt100 compact resistance thermometers for temperature
measurement in all industries. Thanks to its compact design, it can
be mounted to all kinds of designs.
The output signal is a load-independent direct current of 4 to 20mA
which is proportional to the temperature.
Parameterization is implemented over the PC using the parameteriz
ation software SIPROM T and the modem for
SITRANSTH100/TH200. If you already have a "Modem for
SITRANSTK" (article number 7NG3190-6KB), you can continue to
use this for parameterization of the SITRANSTH100.
Function
Mode of operation
The measured signal supplied by a Pt100 resistance thermometer (2, 3 or 4-wire connection) is amplified in the input stage. The voltage,
which is proportional to the input variable, is then converted into digital signals by a multiplexer in an analog-to-digital converter. They are
converted in the microcontroller in accordance with the sensor characteristic and additional parameters (measuring range, damping, ambi
ent temperature, etc.).
The signal prepared in this way is converted in an analog-to-digital converter into a load-independent direct current of 4to 20mA.
An EMC filter protects the input and output circuits against electromagnetic interferences.
A/D
D/A
Input
Pt100 Resistance thermometer
EMC_1 Input level with protective components
IC Constant current source
MUX Multiplexer
A/D Analog-digital converter
Output
D/A Digital-analog converter
U/I Voltage transformers, current
transformers, constant voltage
and reference voltage source
EMC_2 Output level with protective components
U
aux
Auxiliary power supply
I
out
Output current
Microcontroller
μC Linearization functions and storage
of all data
U
aux
, I
out
6
5
3
4
EMC_1
Pt100
MUX
µC
U
I
EMC_2
4 ... 20 mA
+
-
SITRANSTH100Slim, function block diagram
Siemens FI 01 · 2023
Temperature transmitters
Temperature Measurement
© Siemens AG 2023
Temperature transmitters
Compact and head transmitters / SITRANS TH100 Slim (Pt100)
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Selection and ordering data
SITRANSTH100Slim
temperature transmitters for
Pt100
Article No.
For welding to compact thermometers
2-wire system, 4...20mA, programmable,
without galvanic isolation
•
Without explosion protection 7NG3150-0NN00
Accessories
Modem
Modem with USB interface and SIPROMT
software
7NG3092-8KN
Technical specifications
SITRANS TH100 Slim (Pt100)
Input
Resistance thermometer
Measured variable Temperature
Input type Pt100 according to IEC60751
Characteristic curve Temperature-linear
Connection type 2, 3, 4-wire connection
Resolution 14bit
Measuring accuracy < 0.25°C (0.45°F)
Repeatability < 0.1 °C (0.18 °F)
Measuring current Approx. 0.4mA
Measuring cycle < 0.7s
Measuring range -60...+160 °C (-76...+320 °F)
Measuring span 25...220°C (45...396°F)
Unit °C or °F
Offset Programmable:
-100...+100°C (-180...+180°F)
Wire resistance Max. 20Ω (total from feeder and return
conductor)
Noise suppression 50 and 60Hz
Output
Output signal 4...20mA, 2-wire
Auxiliary power 8.5...36 V DC (30V for Ex)
Max. load (U
aux
– 8.5V)/0.023A
Overrange 3.6...23mA, continuously adjustable
(factory setting: 3.84...20.5mA)
Error signal (in the event of sensor breakage) 3.6...23mA, continuously adjustable
(factory setting: 3.6mA or 22.8mA)
Damping time 0 ... 30 s
Protection Against reverse polarity
Resolution 12bit
Accuracy at 23 °C (73.4 °F) < 0.1% of measuring span
Temperature influence < 0.13%/10°C (0.13%/18°F)
Effect of auxiliary power < 0.02% of measuring span/V
Effect of load impedance < 0.055% of max. measuring span/100Ω
Long-term drift
•
< 0.025% of the max. measuring span in
the first month
•
< 0.035% of the max. measuring span
after one year
•
< 0.05% of the max. measuring span after
5 years
Ambient conditions
Ambient temperature range -40...+85°C (-40...+185°F)
Storage temperature range -40...+85°C (-40...+185°F)
Relative humidity 98%, with condensation
Electromagnetic compatibility According to EN 61326 and NAMUR NE21
Structural design
Weight 42g (0.093lbs)
Dimensions See dimensional drawing
Technical specifications (continued)
SITRANS TH100 Slim (Pt100)
Material 316L stainless steel
Degree of protection according to IEC60529
•
Enclosure IP67
Software requirements for SIPROM T
PC operating system Windows10, 7, ME, 2000 and XP; also
Windows 95, 98 and 98SE, but only in
connection with RS232 modem
Factory setting:
•
Pt100 (IEC 751) in the 3-wire connection
•
Measuring range: 0...100°C (32...212°F)
•
Fault current in the event of sensor breakage: 22.8mA
•
Sensor offset: 0°C (0°F)
•
Damping 0.0s
Dimensional drawings
3 (0.12)
2 (0.78)
56 (2.20)
68 (2.68)
Ø18 (0.71)
(Ø0.64 +0.0/-0.004)
Ø16,3 +0.0/-0.1
M12 device plug
Transmitter
housing
M12x1
SITRANSTH100Slim, dimensions in mm (inch)
Siemens FI 01 · 2023
Temperature Measurement
© Siemens AG 2023
Temperature transmitters
Compact and head transmitters / SITRANS TH100 Slim (Pt100)
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Circuit diagrams
Auxiliary power U
N. C.
N. C.
Sensor
connections
3 6
54
63
54
U+
U-
SITRANSTH100Slim, auxiliary power and sensor connection
Pt100
Pt100Pt100
3
4
6
5
3
4
6
5
3
4
6
5
SITRANSTH100Slim, sensor connection assignment
Siemens FI 01 · 2023
Temperature Measurement
© Siemens AG 2023