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SITRANS T measuring instruments for temperature

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

Ω

Ω

Ω

Resistance 
(linear)

0 ... 24

5

0.08

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 error

1)

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

µ

V

-1  ... +16

35

-3 ... +32

20

-7 ... +65

20

-15 ... +131

50

-31 ... +262

100

-63 ... +525

200

-120 ... +1000

300

V sources (linear)

V

mV

-1.2 ... +10

3

-12 ... +100

30

-120 ... +140

300

µ

A/mA sources (linear)

µ

A/mA

µ

A

-12 ... +100

µ

A

0.05

-120 ... +1000

µ

A

0.5

-1.2 ... +10 mA

5

-12 ... +100 mA

50

-120 ... +1000 mA

500

© Siemens AG 2009

Содержание SITRANS TW

Страница 1: ...sors 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 sou...

Страница 2: ...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 ...

Страница 3: ...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 xxxx7 or 7NG3242 xxxx 0 with U I plug 12 mA 100 mA 0 4 mA Devices with 7NG3242 xxxx8 120 ...

Страница 4: ...t 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 approva...

Страница 5: ... 0 3 0 5 Input Measured range Max permissi ble line resis tance Digital error Ω Ω Ω Resistance linear 0 24 5 0 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...

Страница 6: ... 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 ev...

Страница 7: ... 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 chara...

Страница 8: ...on 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 Ω D 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 Ω D 1 0 Ni100 DIN 60 250 C A 2 2 4 wire system C 3 4 20 Ω D 2 0 n 10 B 1 0 50 Ω D 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 ...

Страница 9: ...hermometer 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 ...

Страница 10: ...ion 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...

Страница 11: ...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 temperatur...

Страница 12: ...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 sen...

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