Siemens SITRANS TW User manual

SITRANS T measuring instruments for temperature
Transmitters for rail mounting
SITRANS TW
four-wire system, universal, HART
3/38 Siemens FI 01 · 2010
3
■ Overview
The user-friendly transmitters for the control room
The SITRANS TW universal transmitter is a further development
of the service-proven SITRANS T for the 4-wire system in a
mounting rail housing. With numerous new functions it sets new
standards for temperature transmitters.
With its diagnostics and simulation functions the SITRANS TW
provides the necessary insight during commissioning and oper-
ation. And using its HART interface the SITRANS TW can be
conveniently adapted with SIMATIC PDM to every measurement
task.
All SITRANS TW control room devices are available in a non-
intrinsically safe version as well as in an intrinsically safe version
for use with the most stringent requirements.
■ Application
The SITRANS TW transmitter is a four-wire rail-mounted device
with a universal input circuit for connection to the following sen-
sors and signal sources:
• Resistance thermometers
• Thermocouple elements
• Resistance-based sensors/potentiometers
• mV sensors
• As special version:
- V sources
- Current sources
The 4-wire rail-mounted SITRANS TW transmitter wire is de-
signed for control room installation. It must not be mounted in
potentially explosive atmospheres.
All SITRANS TW control room devices are available in a non-
intrinsically safe version as well as in an intrinsically safe version
for use with the most stringent requirements.
■ Function
Features
• Transmitter in four-wire system with HART interface
• Housing can be mounted on 35 mm rail or 32 mm G rail
• Screw plug connector
• All circuits electrically isolated
• Output signal: 0/4 to 20 mA or 0/2 to 10 V
• Power supplies: 115/230 V AC/DC or 24 V AC/DC
• Explosion protection [EEx ia] or [EEx ib] for measurements
with sensors in the hazardous area
• Temperature-linear characteristic for all temperature sensors
• Temperature-linear characteristic can be selected for all tem-
perature sensors
• Automatic correction of zero and span
• Monitoring of sensor and cable for open-circuit and short-cir-
cuit
• Sensor fault and/or limit can be output via an optional sensor
fault/limit monitor
• Hardware write protection for HART communication
• Diagnostic functions
• Slave pointer functions
Mode of operation
The signal output by a resistance-based sensor (two-wire, three-
wire, four-wire system), voltage source, current source or ther-
mocouple is converted by the analog-to-digital converter
(1, function diagram) into a digital signal. This is evaluated in the
microcontroller (2), corrected according to the sensor character-
istic, and converted by the digital-to-analog converter (6) into an
output current (0/4 to 20 mA) or output voltage (0/2 to 10 V). The
sensor characteristics as well as the electronics data and the
data for the transmitter parameters are stored in the non-volatile
memory (3).
AC or DC voltages can be used as the power supply (13). Any
terminal connections are possible for the power supply as a re-
sult of the bridge rectifier in the power supply unit. The PE con-
ductor is required for safety reasons.
A HART modem or a HART communicator permit parameteriza-
tion of the transmitter using a protocol according to the HART
specification. The transmitter can be directly parameterized at
the point of measurement via the HART output terminals (10).
The operation indicator (4) identifies a fault-free or faulty operat-
ing state of the transmitter. The limit monitor (9) enables the sig-
naling of sensor faults and/or limit violations. In the case of a cur-
rent output, the current can be checked on a meter connected
to test socket (12).
Diagnosis and simulation functions
The SITRANS TW comes with extensive diagnosis and simula-
tion functions.
Physical values can be defined with the simulation function. It is
thus possible to check the complete signal path from the sensor
input to Inside the control system without additional equipment.
The slave pointer functions are used to record the minimum and
maximum of the plant’s process variable.
HART modem/
communicator
Current test
0/4 ... 20 mA
Output
U or I
Power
sup-
ply
unit
EEPROM
7
3
13
UH
A
D
6
5
µC
A
12
11
10
A
D
RTD
TC
12
9
4
8
© Siemens AG 2009

SITRANS T measuring instruments for temperature
Transmitters for rail mounting
SITRANS TW
four-wire system, universal, HART
3/39
Siemens FI 01 · 2010
3
■ Integration
System configuration
Possible system configurations
The SITRANS TW transmitter as a four-wire rail-mounted device
can be used in a number of system configurations: as a stand-
alone version or as part of a complex system environment, e.g.
with SIMATIC S7. All device functions are available via HART
communication.
Communication options through the HART interface:
• HART communicator
• HART modem connected to PC/laptop on which the appropri-
ate software is available, e.g. SIMATIC PDM
• HART-compatible control system (e.g. SIMATIC S7-400 with
ET 200M)
■ Technical specifications
SITRANS TW
transmitter
Control system
or
Load
HART
communi-
cator or
HART
modem
PC/laptop with
SIMATIC PDM
A
UH
RS-232-C
SIMATIC S7-400
ET 200M
SIMATIC PDM
4...20 mA
Input
Selectable filters to suppress the
line frequency 50 Hz, 60 Hz, also 10 Hz for spe- cial applications (line frequency
filter is similar with measuring fre-
quency)
Resistance thermometer
Measured variable Temperature
Measured range Parameterizable
Measured span Min. 25 °C (45 °F) x 1/scaling
factor
Sensor type
• DIN IEC 751 Pt100 (DIN IEC 751)
• Acc. to JIS C 1604-81 Pt100 (JIS C1604-81)
• Acc. to DIN 43760 Ni100 (DIN 43760)
• Special type (RRTD ≤500 Ω)Multiples or parts of the defined
characteristic values can be
parameterized (e.g. Pt500, Ni120)
Voltage measurement Temperature-linear, resistance-
linear or customer-specific
Type of connection • Normal connection
• Sum or parallel connection
• Mean-value or differential
connection
Connection 2, 3 or 4-wire circuit
Measuring range limits Depending on type of connected
thermometer (defined range of
resistance thermometer)
Sensor breakage monitoring Monitoring of all connections for
open-circuit (function can be
switched off)
Sensor short-circuit monitoring Parameterizable response thresh-
old (function can be switched off)
Resistance-based sensors,
potentiometers
Measured variable Ohmic impedance
Measured range Parameterizable
Measured span Min. 10 Ω
Voltage measurement Resistance-linear or customer-
specific
Type of connection • Normal connection
• Differential connection
• Mean-value connection
Connection 2, 3 or 4-wire circuit
Input range 0 ... 6000 Ω;
with mean-value and difference cir-
cuits: 0 ... 3000 Ω;
Sensor breakage monitoring Monitoring of all connections for
open-circuit (function can be
switched off)
Sensor short-circuit monitoring Parameterizable response thresh-
old (function can be switched off)
© Siemens AG 2009

SITRANS T measuring instruments for temperature
Transmitters for rail mounting
SITRANS TW
four-wire system, universal, HART
3/40 Siemens FI 01 · 2010
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Thermocouple elements
Measured variable Temperature
Measured range Parameterizable
Measured span Min. 50 °C (32.22 °F) x 1/scaling
factor
Measuring range limits Depend. on type of thermocouple
element
Thermocouple
• Type B Pt30 %Rh/Pt6 %Rh (DIN IEC 584)
• Type C W5 %-Re (ASTM 988)
• Type D W3 %-Re (ASTM 988)
• Type E NiCr/CuNi (DIN IEC 584)
• Type J Fe/CuNi (DIN IEC 584)
• Type K NiCr/Ni (DIN IEC 584)
• Type L Fe-CuNi (DIN 43710)
• Type N NiCrSi-NiSi (DIN IEC 584)
• Type R Pt13 %Rh/Pt (DIN IEC 584)
• Type S Pt10 %Rh/Pt (DIN IEC 584)
• Type T Cu/CuNi (DIN IEC 584)
• Type U Cu/CuNi (DIN 43710)
Special type
(-10 mV ≤UTC ≤100 mV)
Voltage measurement Temperature-linear, voltage-linear
or customer-specific
Type of connection • Normal connection
• Sum connection
• Mean-value connection
• Differential connection
Cold junction compensation None, internal measurement, exter-
nal measurement or predefined
fixed value
Sensor breakage monitoring Function can be switched off
mV sensors
Measured variable DC voltage
Measured range Parameterizable
Measured span Min. 4 mV
Input range -120 ... +1000 mV
Voltage measurement Voltage-linear or customer-specific
Overload capacity of inputs Max. ±3.5 V
Input resistance ≥1MΩ
Sensor current Approx. 180 µA
Sensor breakage monitoring Function can be switched off
V sources
Measured variable DC voltage
Measured range Parameterizable
Voltage measurement Voltage-linear or customer-specific
Input range/min. span
• Devices with 7NG3242-xxxx1or
7NG3242-xxxx 0with U/I plug -1.2 V ... +10 V/0.04 V
• Devices with 7NG3242-xxxx2-12 V ... +100 V/0.4 V
• Devices with 7NG3242-xxxx3-120 V ... +140 V/4.0 V
Sensor breakage monitoring Not possible
µA, mA sources
Measured variable DC voltage
Measured range Parameterizable
Voltage measurement Current-linear or customer-
specific
Input range/min. span
• Devices with 7NG3242-xxxx4-12 µA ... +100 µA/0.4 µA
• Devices with 7NG3242-xxxx5-120 µA ... +1000 µA/4 µA
• Devices with 7NG3242-xxxx6-1.2 mA ... +10 mA/0.04 mA
• Devices with 7NG3242-xxxx7or
7NG3242-xxxx 0with U/I plug -12 mA ... +100 mA/0.4 mA
• Devices with 7NG3242-xxxx8-120 mA ... +1000 mA/4 mA
Sensor breakage monitoring Not possible
Output
Output signal Load-independent direct current
0/4 ... 20 mA, can be switched to
load-independent DC voltage
0/2 ... 10 V using plug-in jumpers.
Current 0/4 ... 20 mA
• Overrange -0.5 ... +23.0 mA, continuously
adjustable
• Output range following sensor fault -0.5 ... +23.0 mA, continuously
adjustable
•Load ≤650 Ω
• Open-circuit voltage ≤30 V
Voltage 0/2 ... 10 V
• Overrange -0.25 ... +10.75 V, continuously
adjustable
• Output range following sensor fault -0.25 ... +10.75 V, continuously
adjustable
• Load resistance ≥1kΩ
• Load capacitance ≤10 nF
• Short-circuit voltage ≤100 mA (not permanently short-
circuit-proof)
• Electrical damping
- Adjustable time constant T63 0 ... 100 s, in steps of 0.1 s
• Current source/voltage source Continuously adjustable within the
total operating range
Sensor fault/limit signalling By operation indicator, relay output
or HART interface
Operation indicator Flashing signal
• Limit violation Flashing frequency 5 Hz
• Overrange Flashing frequency 1 Hz
Relay output Either as NO or NC contact with
1 changeover contact
• Switching capacity ≤150 W, ≤625 VA
• Switching voltage ≤125 V DC, ≤250 V AC
• Switching current ≤DC 2.5 A
Overrange Signalling of sensor or line break-
age and sensor short-circuit
Limit monitoring
• Operating delay 0 ... 10 s
• Monitoring functions of limit
module • Sensor fault (breakage and/or
short-circuit)
• Lower and upper limit
• Window (combination of lower
and upper limits)
• Limit and sensor fault detection
can be combined
• Hysteresis Parameterizable between 0 and
100 % of measuring range
© Siemens AG 2009

SITRANS T measuring instruments for temperature
Transmitters for rail mounting
SITRANS TW
four-wire system, universal, HART
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Power supply
Universal power supply unit 115/230 V AC/DC or 24 V AC/DC
Tolerance range for power supply
• With 115/230 V AC/DC PSU 80 ... 300 V DC; 90 ... 250 V AC
• With 24 V AC/DC PSU 18 ... 80 V DC; 20.4 ... 55.2 V AC
(in each case interruption-resistant
up to 20 ms in the complete toler-
ance range)
Tolerance range for mains fre-
quency 47 ... 63 Hz
Power consumption with
• 230 V AC ≤5 VA
• 230 V DC ≤5 W
• 24 V AC ≤5 VA
• 24 V DC ≤5 W
Electrical isolation
Electrically isolated circuits Input, output, power supply and
sensor fault/limit monitoring output
are electrically isolated from one
another. The HART interface is
electrically connected to the out-
put.
Working voltage between all electri-
cally isolated circuits The voltage Ueff between any two
terminals must not exceed 300 V
Measuring accuracy
Measurement error
• Error in the internal cold junction ≤3°C±0,1 °C/10 °C
(≤5.4 °F ±0,18 °F/18 °F)
• Error of external cold junction ter-
minal 7NG3092-8AV ≤0.5 °C ±0,1 °C/10 °C
(≤0.9 °F ±0.18 °F/18 °F)
• Digital output See "Digital error"
• Analog output IAN or UAN ≤0.05 % of span in addition to
digital error
Influencing effects (referred to the
digital output) Compared to the max. span:
• Temperature drift ≤0.08 %/10 °C (≤0.08 %/18 °F)
≤0.2 % in the range -10 ... +60 °C
(14 ... 140 °F)
• Long-term drift ≤0.1 %/year
Influencing effects referred to the
analog output IAN or UAN
Compared to the span:
• Temperature drift ≤0.08 %/10°C (≤0.08 %/18 °F)
≤0.2 % in the range -10 ... +60 °C
(14 ... 140 °F)
• Power supply ≤0.05 %/10 V
• Load with current output ≤0.05 % with change from
50 ... 650 Ω
• Load with voltage output ≤0.1 % with change in load current
from 0 ... 10 mA
• Long-term drift (start-of-scale
value, span) ≤0.03 %/month
Response time (T63 without electri-
cal damping) ≤0.2 s
Electromagnetic compatibility According to EN 61326 and
NAMUR NE21
Certificate and approvals
ATEX To DIN EN 50014: 1997,
EN 50020: 1994
Intrinsic safety to EN 50 020
• for 7NG3242-xAxxx II (1) G D [EEx ia/ib ] IIB
• for 7NG3242-xBxxx II (1) G D [EEx ia/ib ] IIC
EC-Type Examination Certificate TÜV (German Technical Inspec-
torate) 01 ATEX 1675
Rated conditions
Installation conditions
Location (for devices with explo-
sion protection)
• Transmitters Outside the potentially explosive
atmosphere
•Sensor Within the potentially explosive
atmosphere zone 1 (also in zone 0
in conjunction with the prescribed
protection requirements for the
sensor)
Ambient conditions
Permissible ambient temperature -25 ... +70 °C (-13 ... +158 °F)
Permissible storage temperature -40 ... +85 °C (-40 ... +185 °F)
Climatic class
• Relative humidity 5 ... 95 %, no condensation
Design
Weight Approx. 0.24 kg (0.53 lb)
Enclosure material PBT, glass-fibre reinforced
Degree of protection to IEC 529 IP20
Degree of protection to VDE 0100 Protection class I
Type of installation 35-mm top hat rail (1.38 inch)
(DIN EN 50022) or 32-mm G-type
rail (1.26 inch) (DIN EN 50035)
Electrical connection/process con-
nection Screw plug connectors,
max. 2.5 mm² (0.01 inch²)
Parameterization interface
Protocol HART, version 5.9
Load with connection of
• HART communicator 230 ... 650 Ω
•HARTmodem 230 ... 500 Ω
Software for PC/laptop SIMATIC PDM version V5.1 and
later
© Siemens AG 2009

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Transmitters for rail mounting
SITRANS TW
four-wire system, universal, HART
3/42 Siemens FI 01 · 2010
3
Digital error
Resistance thermometer
Resistance-based sensors
Thermocouple elements
Voltage/current sources
Input Measured range Max. permissi-
ble line resis-
tance
Digital error
°C (°F) Ω°C (°F)
DIN IEC 751
•Pt10 -200 ... +850
(-328 ... +1562) 20 3.0 (5.4)
•Pt50 -200 ... +850
(-328 ... +1562) 50 0.6 (1.1)
• Pt100 -200 ... +850
(-328 ... +1562) 100 0.3 (0.5)
• Pt200 -200 ... +850
(-328 ... +1562) 100 0.6 (1.1)
• Pt500 -200 ... +850
(-328 ... +1562) 100 1.0 (1.8)
• Pt1000 -200 ... +850
(-328 ... +1562) 100 1.0 (1.8)
JIS C 1604-81
•Pt10 -200 ... +649
(-328 ... +1200) 20 3.0 (5.4)
• Pt50 -200 ... +649
(-328 ... +1200) 50 0.6 (1.1)
• Pt100 -200 ... +649
(-328 ... +1200) 100 0.3 (0.5)
DIN 43760
• Ni50 -60 ... +250
(-76 ... +482) 50 0.3 (0.5)
• Ni100 -60 ... +250
(-76 ... +482) 100 0.3 (0.5)
• Ni120 -60 ... +250
(-76 ... +482) 100 0.3 (0.5)
• Ni1000 -60 ... +250
(-76 ... +482) 100 0.3 (0.5)
Input Measured
range Max. permissi- ble line resis-
tance
Digital error
ΩΩΩ
Resistance
(linear) 0...24 50.08
0...47 15 0.06
0...94 30 0.06
0...188 50 0.08
0...375 100 0.1
0...750 100 0.2
0 ... 1500 75 1.0
0 ... 3000 100 1.0
0 ... 6000 100 2.0
Input Measured range Digital error1)
1) Accuracy data refer to the largest error in the complete measuring range
°C (°F) °C (°F)
Type B 0 ... +1820
(+32 ... +3308) 3 (5.4)
Type C 0 ... +2300
(+32 ... +4172) 2 (3.6)
Type D 0 ... +2300
(+32 ... +4172) 1 (1.8)
Type E -200 ... +1000
(-328 ... +1832) 1 (1.8)
Type J -210 ... +1200
(-346 ... +2192) 1 (1.8)
Type K -200 ... +1372
(-328 ... +2502) 1 (1.8)
Type L -200 ... +900
(-328 ... +1652) 2 (3.6)
Type N -200 ... +1300
(-328 ... +2372) 1 (1.8)
Type R -50 ... +1760
(-58 ... +3200) 2 (3.6)
Type S -50 ... +1760
(-58 ... +3200) 2 (3.6)
Type T -200 ... +400
(-328 ... +752) 1 (1.8)
Type U -200 ... +600
(-328 ... +1112) 2 (3.6)
Input Measuring range Digital error
mV sources (linear) mV µV
-1 ...+16 35
-3 ... +32 20
-7 ... +65 20
-15 ... +131 50
-31 ... +262 100
-63 ... +525 200
-120 ... +1000 300
V sources (linear) VmV
-1.2 ... +10 3
-12 ... +100 30
-120 ... +140 300
µA/mA sources (linear) µA/mA µA
-12 ... +100 µA0.05
-120 ... +1000 µA0.5
-1.2 ... +10 mA 5
-12 ... +100 mA 50
-120 ... +1000 mA 500
© Siemens AG 2009

SITRANS T measuring instruments for temperature
Transmitters for rail mounting
SITRANS TW
four-wire system, universal, HART
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3
■ Ordering examples ■ Ordering information
The order number structure shown below is used to specify a
fully functioning transmitter. The selection of the operating data
(type of source, measuring range, characteristic etc.) is made
according to the following rules:
• Operating data already set in factory to default values:
The default settings can be obtained from the list of parame-
terizable operating data (see "Special operating data"). The
presets can be modified by the customer to match the require-
ments precisely.
• Operating data set on delivery according to customer require-
ments:
Supplement the Order No. by "-Z" and add the Order code
"Y01". The operating data to be set can be obtained from the
list of parameterize operating data. The Order codes A 77to
K77for operating data to be set need only be specified in the
order if they deviate from the default setting.
The default setting is used if no Order code is specified for op-
erating data.
The selected parameters are printed on the transmitter's rating
plate.
Desired transmitter Parameter: Ordering
design
Standard Special
Example 1:
SITRANS TW,
transmitter in four-wire system
7NG3242-1AA00
(stock item)
• with explosion protection ATEX
• 230 V AC/DC power supply
• current output
• without sensor fault/limit monitor
- Sensor PT100, three-wire circuit X
- Measuring range 0 ... 150 °C X
- Temperature-linear characteristic X
- Filter time 1 s X
- Output 4 ... 20 mA, line filter 50 Hz X
- Output driven to full-scale in event
of like breakage X
Example 2:
SITRANS TW,
transmitter in four-wire system
7NG3242-0BB10-Z
Y01 + S76 + A05 + Y30 + H10
Y01: see Order code
Y30: MA=0; ME= 950; D=C
• without explosion protection
• 24 V AC/DC power supply
• Voltage output
• Sensor fault/limit monitor
- Rating plate in English S76
- Sensor NiCr/Ni, type K A05
- Cold junction internal X
- Measuring range 0 ... 950 °C Y30
- Temperature-linear characteristic X
- Filter time 1 s X
- Output 0 ... 10 V, line filter 50 Hz H10
- Output driven to full-scale in event
of like breakage X
- Limit monitoring switched off X
Example 3:
SITRANS TW,
transmitter in four-wire system
7NG3242-0BA01-Z
Y01 + A40 + Y32 + G07 + H11 + J03
Y01: see Order code
Y32: MA=0; ME= 5; D=V
• without explosion protection
• 24 V AC/DC power supply
• Current output
• without sensor fault/limit monitor
- Voltage input, measuring
range -1.2 V ... +10 V A40
- Measuring range 0 ... 5 V Y32
- Source-proportional characteristic X
- Filter time 10 s G07
- Output 0 ... 20 mA, line filter 60 Hz H11
- No monitoring for sensor fault (X) J03
© Siemens AG 2009

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Transmitters for rail mounting
SITRANS TW
four-wire system, universal, HART
3/44 Siemens FI 01 · 2010
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}Available ex stock.
D) Subject to export regulations AL:N, ECCN: EAR99H.
Selection and Ordering data Order No.
SITRANS TW universal transmitter
for rail mounting, in four-wire system
(order instruction manual separately)
}7 N G 3 2 4 2 - 77777
Explosion protection
• without }0
• for inputs [EEx ia] or [EEx ib] }1
Power supply
• 115/230 V AC/DC }A
• 24 V AC/DC }B
Output signal
• 0/4 ... 20 mA (can be switched to 0/2 ... 10 V) }A
• 0/2 ... 10 V (can be switched to 0/4 ... 20 mA) B
Sensor fault/limit monitor
• without (retrofitting not possible) }0
• relay with changeover contact 1
Input for
• Temperature sensor, resistance-based sen-
sor and mV sensor with measuring range
-120 ... +1000 mV DC and with U/I plug
}0
• Voltage input (V sources) 1)
Measuring range:
1) Observe max. values with Ex version.
- DC -1.2 ... +10 V 1
- DC -12 ... +100 V (not Ex version) 2
- DC -120 ... +140 V (not Ex version) 3
• Current input (µA, mA sources) 1)
Measuring range:
- DC -12 ... +100 µA4
- DC -120 ... +1000 µA5
- DC -1.2 ... +10 mA 6
- DC -12 ... +100 mA 7
- DC -120 ... +1000 mA 8
Further designs Order code
Please add "-Z" to Order No. and specify
Order code(s) (see "List of parameterizable
operating data").
• Customer-specific setting of operating data
(see "List of parameterizable operating
data")
Note:
specify in plain text: „see Order code“
Y01
• Meas. point description (max. 16 char.) Y23
• Text on front of device (max. 32 char.) Y24
• HART tag (max. 8 characters) Y25
• with test report P01
• with shorting plug to HART communication
for 0 mA or 0 V S01
• with plug for external cold junction compen-
sation S02
• with U/I plug
(-1.2 ... +10 V DC or -12 ... +100 mA) S03
Language of rating plate
(together with Y01 order code only)
•Italian S72
•English S76
• French S77
• Spanish S78
Selection and Ordering data Order No.
Accessories
CD for measuring instruments for
temperature
}A5E00364512
with documentation in German, English,
French, Spanish, Italian, Portuguese and
SIPROM T parameterization software
Instruction Manual for SITRANS TW
• German/English }A5E00054075
• French/Italian/Spanish }A5E00064515
Cold junction terminal }7NG3092-8AV
U/I plug
(-1.2 ... +10 V DC pr -12 ... +100 mA) }7NG3092-8AW
SIMATIC PDM operating software see Chapter 9
HART modem
• with RS232 interface }
D) 7MF4997-1DA
• with USB interface }
D) 7MF4997-1DB
© Siemens AG 2009

SITRANS T measuring instruments for temperature
Transmitters for rail mounting
SITRANS TW
four-wire system, universal, HART
3/45
Siemens FI 01 · 2010
3
■ List of parameterizable operating data (Order codes A 77+ B 77... E 77)
Operating data acc. to default setting Order No. with Order code: 7NG3242 - 77777-Z Y01
Order codes: A 77... E 77777 +777 +777 +777 +777
Sensor
Thermocouples Connection Cold junction
compensation Measuring ranges
Type Temperature range
B: Pt30 %Rh/Pt6 %Rh 0 ... 1820 °C A 0 0 Standard B 0 1 None C 0 0 -30...+60°C
-20...+20°C
0...40°C
0...60°C
0...80°C
0 ... 100 °C
0 ... 120 °C
E
E
E
E
E
E
E
0
0
0
0
0
0
0
0
1
2
3
4
5
6
C:W5 %Re 0 ... 2300 °C A 0 1 Sum n 1) n = 2 B 0 2 Internal C 1 0
D:W3 %Re 0 ... 2300 °C A 0 2 ... . . . Fixed val. 0 °C C 2 0
E:NiCr/CuNi -200 ... +1000 °C A 0 3 n = 10 B 1 0 20 °C C 2 2
J:Fe/CuNi (IEC) -210 ... +1200 °C A 0 4 Difference 2) Diff1 B 3 1 50 °C C 2 5
K:NiCr/Ni -200 ... +1372 °C A 0 5 Diff2 B 3 2 60 °C C 2 6
L: Fe/CuNi (DIN) -200 ... +900 °C A 0 6 Mean-val. 2) MW B 4 1 70 °C C 2 7
N:NiCrSi/NiSi -200 ... +1300 °C A 0 7 Special value 7) Y 1 0 0 ... 150 °C E 0 7
R:Pt13 %Rh/Pt -50 ... +1760 °C A 0 8 External meas.
(through Pt100
DIN IEC 751) 7)
Y 1 1 0 ... 200 °C
0 ... 250 °C
0 ... 300 °C
0 ... 350 °C
0 ... 400 °C
0 ... 450 °C
0 ... 500 °C
0 ... 600 °C
0 ... 700 °C
0 ... 800 °C
0 ... 900 °C
0...1000°C
0...1200°C
0...1400°C
0...1600°C
0...1800°C
50 ... 100 °C
50 ... 150 °C
100 ... 200 °C
100 ... 300 °C
100 ... 400 °C
200 ... 300 °C
200 ... 400 °C
200 ... 500 °C
300 ... 600 °C
500 ... 1000 °C
600 ... 1200 °C
800 ... 1600 °C
Special range 7)
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
Y
0
0
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
0
S:Pt10 %Rh/Pt -50 ... +1760 °C A 0 9
T:Cu/CuNi (IEC) -200 ... +400 °C A 1 0
U:Cu/CuNi (DIN) -200 ... +600 °C A 1 1
Resistance thermometer
(or max. permissible line resistance see
„Technical specifications“)
Connection Connection Line resis-
tance 3)
Pt100 (DIN IEC) -200 ... +850 °C A 2 0 Standard B 0 1 2-wire-system C 3 2 0 ΩD 0 0
Pt100 (JIS) -200 ... +649 °C A 2 1 Sum n 4) n = 2 B 0 2 3-wire-system C 3 3 10 ΩD 1 0
Ni100 (DIN) -60 ... +250 °C A 2 2 ... . . . 4-wire-system C 3 4 20 ΩD 2 0
n = 10 B 1 0 50 ΩD 5 0
Parallel n 5) n = 0.1 B 2 1 Special val.7) Y 2 0
n= 0.2 B 2 2
n= 0.5 B 2 5
Special value 6) 7) Y 0 0
Difference 2) Diff1 B 5 1
Diff2 B 5 2
Mean-val. 2) MW B 6 1
Resistance-based sensors, potentiome-
ters Connection Connection Line resis- tance 3) Measuring ranges
(or max. permissible line resistance see
„Technical specifications“) A 3 0 Standard B 0 1 2-wire-system C 3 2 0 ΩD 0 0 0 ... 100 ΩE 4 0
Difference 2) Diff1 B 5 1 3-wire-system C 3 3 10 ΩD 1 0 0 ... 200 ΩE 4 1
Diff2 B 5 2 4-wire-system C 3 4 20 ΩD 2 0 0 ... 500 ΩE 4 2
Mean val.2) MW B 6 1 50 ΩD 5 0 0 ... 1000 ΩE 4 3
Special val. 7) Y 2 0 0 ... 2500 ΩE 4 4
0 ... 5000 Ω 8) E 4 5
0 ... 6000 Ω 8) E 4 6
Special range 7) Y 3 1
mV, V and µA, mA sensors 9) A 4 0 Meas. range with Order No. 7NG 3242 - 77777-Z Y01 E 5 0
0-120 ... +1000 mV
1) n = number of thermocouple elements to be connected in series
2) See „Circuit diagrams“ for meaning of type circuit
3) Line resistance of channels 1 and 2, for max. permissible line resistance see
„Technical specifications“ (only with C32, not with C33 and C34)
4) n = number of resistance thermometers to be connected in series
5) 1/n = number of resistance thermometers to be connected in parallel
6) Combination of series and parallel connection of resistance thermometers
7) Operating data: see „Special operating data“
8) This range does not apply to mean-value and difference circuits.
9) The max. permissible currents and voltages according to conformity cer-
tificate must be observed in devices with explosion protection.
10) Without detection of line breakage
1-1,2 ... +10 V 10)
2-12 ... +100 V 10)
3-120 ... +140 V 10)
4-12 ... +100 µA 10)
5-120 ... +1000 µA 10)
6-1,2 ... +10 mA 10)
7-12 ... +100 mA 10)
8-120 ... +1000 mA 10)
Special range 7) Y 3 2
© Siemens AG 2009

SITRANS T measuring instruments for temperature
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■ List of parameterizable operating data (Order codes F 77... K 77)
Operating data according to default setting Order No. with Order code: 7NG3242 - 77777-Z Y01
Order codes: F 77... K 77777 +7 77 +777 +777 +777
Sensor
Thermocouple elements Voltage
measure-
ment
Filter
time1) Output sig- nal and line
filter 2)
Failure signal Limit
monitor 3)
Type Temperature range
B: Pt30 %Rh/ 0 ... 1820 °C A 0 0 Temperature-
linear F 0 0 0 s G 0 0 4 ... 20 mA/ 2...10V
with line filter:
with line break-
age/fault: Limit monitor- ing ineffective
(but sensor
fault signalling
with closed-
circuit opera-
tion)
K 0 0
C:W5 %Re 0 ... 2300 °C A 0 1 0.1 s G 0 1
D:W3 %Re 0 ... 2300 °C A 0 2 Voltage-
linear F 1 0 0.2 s G 0 2
E:NiCr/CuNi -200 ... +1000 °C A 0 3 0.5 s G 0 3 50 Hz H 0 0 to full scale J 0 0
J:Fe/CuNi (IEC) -210 ... +1200 °C A 0 4 1 s G 0 4 60 Hz H 0 1 to start of scale J 0 1
K:NiCr/Ni -200 ... +1372 °C A 0 5 2 s G 0 5 10 Hz 4) H 0 2 hold last value J 0 2
L: Fe/CuNi (DIN) -200 ... +900 °C A 0 6 5 s G 0 6 0 ... 20 mA/
0...10V
with line filter:
N:NiCrSi/NiSi -200 ... +1300 °C A 0 7 10 s G 0 7 no monitoring J 0 3
R:Pt13 %Rh/Pt -50 ... +1760 °C A 0 8 20 s G 0 8 Effective 5) Y 7 0
S:Pt10 %Rh/Pt -50 ... +1760 °C A 0 9 50 s G 0 9 50 Hz H 1 0 Safety value 5) Y 6 0
T:Cu/CuNi (IEC) -200 ... +400 °C A 1 0 100 s G 1 0 60 Hz H 1 1
U:Cu/CuNi (DIN) -200 ... +600 °C A 1 1 Special
time 5) Y 5 0 10 Hz H 1 2
Resistance thermometer
(max. permissible line resistances see
„Technical specifications“)
Voltage
measure-
ment
Filter
time1)
same as for
thermocou-
ple ele-
ments
Output sig-
nal and line
filter 2)
same as for
thermocou-
ple elements
Failure signal Limit
monitor 3)
same as for
thermocouple
elements
Pt100 (DIN IEC) -200 ... +850 °C A 2 0 Temperature-
linear F 0 0 with line break- age/fault:
Pt100 (JIS) -200 ... +649 °C A 2 1
Ni100 (DIN) -60 ... +250 °C A 2 2 Resistance-
linear F 2 0 to full scale J 0 0
to start of scale J 0 1
hold last value J 0 2
no monitoring J 0 3
Safety value 5) Y 6 0
with line break-
age or short-cir-
cuit/fault:
to full scale J 1 0
to start of scale J 1 1
hold last value J 1 2
no monitoring J 1 3
Safety value 5) Y 6 1
Resistance-based sensors, potenti-
ometers Voltage
measure-
ment
Filter
time1)
same as for
thermocou-
ple ele-
ments
Output sig-
nal and line
filter 2)
same as for
thermocou-
ple elements
Failure signal Limit
monitor 3)
same as for
thermocouple
elements
(max. permissible line resistances see
„Technical specifications“) A 3 0 Resistance-
linear F 2 0 with line break- age/fault:
to full scale J 0 0
to start of scale J 0 1
hold last value J 0 2
no monitoring J 0 3
Safety value 5) Y 6 0
mV, V and µA, mA sources A 4 0 Voltage
measure-
ment
Filter
time1)
same as for
thermocou-
ple ele-
ments
Output sig-
nal and line
filter 2)
same as for
thermocou-
ple elements
Limit
monitor 3)
same as for
thermocouple
elements
Source pro-
portional F 3 0
1) Software filter to smooth the result
2) Filter to suppress line disturbances on the measured signal.
3) If signalling relay present
4) for special appliciations
5) Operating data: see „Special operating data“
© Siemens AG 2009

SITRANS T measuring instruments for temperature
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■ Special operating data
Order
code Plain text required Options
Y00 N=. Factor N for multiplication with the charac-
teristic values of resistance thermometers
Range of values: 0.10 to 10.00
1. Example: 3 x Pt500 parallel:
N = 5/3 = 1.667;
2. Example: Ni120: N = 1.2
Y10 TV=. Temperature TV of the fixed cold junction
D=Dimension; range of values: C, K, F, R
Y11 RL=. Line resistance RL in Ωfor compensation of
cold junction line of external Pt100
DIN IEC 751
Range of values: 0.00 to 100.00
Y20 RL1=.
RL2=.
Line resistances RL of channel 1 (RL1) and
channel 2 (RL2) in Ωif the resistance ther-
mometer or the resistance-based sensor is
connected in a two-wire system
Range of values depending on type of sen-
sor: 0.00 to 100.00
Y30 MA=.
ME=.
Start-of-scale value MA and full-scale value
ME for thermocouples and resistance ther-
mometers
(Range of values depending on type of sen-
sor)
D=Dimension, range of values: C, K, F, R)
Y31 MA=.
ME=.
Start-of-scale value MA and full-scale value
ME for resistance-based sensors or potenti-
ometers in Ω
Range of values: 0.00 to 6,000.00
Y32 MA=.
ME=.
D=
Start-of-scale value MA and full-scale value
ME for mV, V, µA and mA sources
Range of values depending on type of sen-
sor: -120.00 to 1,000.00
Dimension (mV entered as MV, V as V,
µA as UA, mA as MA)
Y50 T63=.Response time T63 of software filter in s
Range of values: 0.0 to 100.0
Safety value S of signal output in mA or in V
corresponding to the set type of output.
Range of values
- with current output: -0.50 to 23.00
- with voltage output: -0.25 to 10.75
Y60 S=. Safety value S with line breakage of sensor
Y61 S=. Safety value S with line breakage or short-
circuit of sensor
Y70 UG=.
OG=.
H=.
K=
A=
T=.
Lower limit value (dimension as defined by
measuring range)
Upper limit value (dimension as defined by
measuring range)
Hysteresis (dimension as defined by mea-
suring range)
Switch on/off combination of limit function
and sensor fault detection; J=on; N=off
(standard: J)
Type of relay output: A=open-circuit opera-
tion; R=closed-circuit operation (standard: R)
Switching delay T of relay output in s
Range of values: 0.0 to 10.0 (standard: 0.0)
© Siemens AG 2009

SITRANS T measuring instruments for temperature
Transmitters for rail mounting
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four-wire system, universal, HART
3/48 Siemens FI 01 · 2010
3
■ Schematics
Sensor input connections
Connection diagram for the input signal
Channel 1 is the measured variable between the terminals 2 and 3 on the input plug. With a difference or mean-value circuit, the
calculation of the measured value is defined by the type of measurement. Otherwise the measured value is determined via channel
1. The following code is used for the type of measurement:
The short-circuit jumpers shown in the circuits must be inserted
in the respective system on site.
Further sources:
9 mV sources with two-wire system
(7NG3242-xxxx0)
10 V sources with two-wire system
(7NG3242-xxxx[1-3])
11 mA/mA sources with two-wire system
(7NG3242-xxxx[4-8])
12 Voltage measurement -1,2 to 10 V with U/I
plug 7NG3092-8AW (7NG3242-xxxx0)
13 Current measurement -12 to 100 mA with
U/I plug 7NG3092-8AW (7NG3242-xxxx0)
Thermocouples:
5 Determination of cold junction temperature using
built-in Pt100 or fixed reference temperature
6 Determination of cold junction temperature using
external Pt100; resistance can be parameterized
for line compensation
7 Determination of cold junction temperature using
cold junction terminal 7NG3092-8AV
8 Difference/mean-value circuit with internalcold
junction temperature
Resistance thermometers, resistance-based
sensors, potentiometers:
1 Two-wire system; resistance can be
parameterized for line compensation
2 Three-wire system
3 Four-wire system
4 Difference/mean-value circuit; 2
resistors can be parameterized
for line compensation
R, RTD R, RTD R1, RTD1R2, RTD2
TC Pt100 TC1
TC2
TC 7NG3092-8AV
R, RTD
TC
-120 ... 1000 mV
12 3 4
56 7 8
910 11
12 13
7NG3092-8AW
-1,2 ... 10 V -12 ... 100 mA
I+ I-U+ U-
4321 4321
+- +-
432 4321
+-
4321 1
+
-
4321 4321
+
-
Pt10
+
-
4321
41
4321 4321 4321 4321
+
-
+
-
4321
+-
-+
Type of measurement Calculation of measured value
Single channel Channel 1
Differential connection 1 Channel 1 - Channel 2
Differential connection 2 Channel 2 - Channel 1
Mean-value 1 ½ ⋅(Channel 1 + Channel 2)
© Siemens AG 2009

SITRANS T measuring instruments for temperature
Transmitters for rail mounting
SITRANS TW
four-wire system, universal, HART
3/49
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3
Connection diagram for power supply, input and outputs
Relay output
■ Dimensional drawings
Dimensions for control room mounting, rail mounting in mm (inches)
Connected terminals
Closed-circuit operation
(relay opens when error)
• Device switched off 10 and 11
• Device switched on and no error 9 and 11
• Device switched on and error 10 and 11
Open-circuit operation
(relay closes when error)
• Device switched off 10 and 11
• Device switched on and no error 10 and 11
• Device switched on and error 9 and 11
1 to 4 Signal input (see "Sensor input connections" for possible
types of connection)
5, 6 Analog output (U or I output parameterizable using plug-in
jumpers)
7, 8 Connection with HART communication for local
parameterization
9 to 11 Output for sensor fault/limit monitor as relay contact
(see below for possible parameterization)
12 PE connection
13, 14 Power supply input (protected against reverse polarity)
Relay output HART
SensorLimit
monitor
HART/Power supply
connection
14 13 12 11 10 9 8 7 6 5 4 3 2 1
UH
+-
+-
~~
© Siemens AG 2009