Electrical
temperature measurement
Miniature resistance thermometer
For sanitary applications
Model TR21-B, for orbital welding
WIKA data sheet TE 60.27
®
Applications
■■ Sanitary applications
■■ Food and beverage industry
■■ Bio and pharmaceutical industry, production of active
ingredients
Special features
■■ Sensor can be calibrated without having to open the
process
■■ Simple and fast connection using an M12 plug connector
■■ With direct sensor output (Pt100/Pt1000 in 3 or 4-wire
version) or integrated transmitter with 4 ... 20 mA output
signal, individually parameterisable with free-of-charge
WIKAsoft-TT PC configuration software.
■■ Wetted parts from stainless steel 1.4435
■■ Self-draining and dead-space minimised, materials and
surface finish qualities in accordance with standards of
hygienic design
Resistance thermometer with flow-through housing,
model TR21-B
Description
The model TR21-B resistance thermometer provides
temperature measurement in sanitary applications and can
be used for the measurement of liquid and gaseous media
in the range of -50 ... +250 °C. For application in hazardous
areas, intrinsically safe versions are available.
To integrate it into the process, the patented thermowell
model TW61 (patent, property right applied for under no.
DE 102010037994 and US 12 897.080) is directly orbitally
welded into a pipeline.
The connection ends are straight and prepared for orbital
welding. The process connections meet the stringent
requirements, in terms of materials and design, of hygienic
measuring points. All electrical components are protected
against moisture (IP 67 or IP 69 K).
The resistance thermometer is available with direct
sensor output or integrated transmitter, which can be
configured individually via the PC configuration software
WIKAsoft-TT. Measuring range, damping, error signalling per
NAMUR NE43 and TAG no. can be adjusted.
For easy calibration or maintenance, the sensor is removable
without having to break into the process or disconnect the
electrical connection. Thus hygiene risks can be minimised
and downtimes can be reduced.
The spring loading, integrated into the union nut, guarantees
the contact between the sensor tip and the bottom of the
thermowell and thus ensures a short response time and
lasting high accuracy.
Insertion length, process connection, sensor and connection
method can each be selected for the respective application
within the order information. The electrical connection is
made via an M12 x 1 circular connector.
WIKA data sheet TE 60.27 ∙ 11/2014
Data sheets showing similar products:
Thermowells for sanitary applications; model TW22; see data sheet TW 95.22
Thermowell for sanitary applications, for orbital welding; model TW61; see data sheet TW 95.61
Resistance thermometer, with flange connection; model TR22-A; see data sheet TE 60.22
Resistance thermometer, for orbital welding; model TR22-B; see data sheet TE 60.23
Miniature resistance thermometer, with flange connection; model TR21-A; see data sheet TE 60.26
Page 1 of 10
Specifications
Thermometer with transmitter and output signal 4 ... 20 mA (models TR21-B-xTT, TR21-B-xTB)
Temperature range
Measuring element
Connection method
Tolerance value of the measuring element
per IEC 60751
Measuring span
Measuring deviation of the transmitter per IEC 60770
Total measuring deviation in accordance with IEC 60770
Basic configuration
Analogue output
Linearisation
Linearisation error
Switch-on delay, electrical
Warming-up period
Current signals for error signalling
Sensor short-circuit
Sensor current
Load RA
Effect of load
Power supply UB
Max. permissible residual ripple
Power supply input
Power supply effect
Influence of the ambient temperature
Electromagnetic compatibility (EMC) 7)
Temperature units
Info data
Configuration and calibration data
Response time (per IEC 60751)
Electrical connection
Explosion protection (option)
-50 ... +150 °C (-58 ... +302 °F), -50 ... +250 °C (-58 ... +482 °F) 1)
■■ Pt1000
■■ Face-sensitive Pt1000 2)
2-wire The lead resistance is recorded as an error in the measurement.
Class A 3)
Minimum 20 K, maximum 300 K
±0.25 K
Measuring deviation of the measuring element + the transmitter
Measuring range 0 ... 150 °C (32 ... 302 °F), other measuring ranges are adjustable
4 ... 20 mA, 2-wire
Linear to temperature per IEC 60751
±0.1 % 5)
Max. 4 s (time before the first measured value)
After approx. 4 minutes, the instrument will function to the specifications (accuracy)
given in the data sheet.
Configurable in accordance with NAMUR NE43
downscale ≤ 3.6 mA
upscale ≥ 21.0 mA
Not configurable, in accordance with NAMUR NE43 downscale ≤ 3.6 mA
< 0.3 mA (self-heating can be ignored)
RA ≤ (UB - 10 V) / 23 mA with RA in Ω and UB in V
±0.05 % / 100 Ω
DC 10 ... 30 V
10 % generated by UB < 3 % ripple of the output current
Protected against reverse polarity
±0.025 % / V (depending on the power supply UB)
0.1 % of span / 10 K Ta
2004/108/EC, EN 61326 emission (group 1, class B) and interference immunity
(industrial application) 6), configuration at 20 % of the full measuring range
Configurable °C, °F, K
TAG no., description and user message can be stored in transmitter
Permanently stored
t50 < 3.2 s t90 < 7.3 s
M12 x 1, 4-pin circular connector
Intrinsically safe to Ex i (ATEX) gas/dust, per directive 94/9/EC
(for further information see “Further specifications for explosion-protected version”)
Thermometer with direct sensor output with Pt100 (model TR21-B-xPx) or Pt1000 (model TR21-B-xRx)
Temperature range
Measuring element
Temperature at the connector
Connection method
Tolerance value of the measuring element
per IEC 60751
Response time (per IEC 60751)
Electrical connection
Explosion protection (option)
-50 ... +150 °C (-58 ... +302 °F), -50 ... +250 °C (-58 ... +482 °F)
Pt100 (measuring current: 0.1 ... 1.0 mA)
Face-sensitive Pt100 (measuring current 0.1 ... 1.0 mA) 2)
Pt1000 (measuring current: 0.1 ... 0.3 mA)
Face-sensitive Pt1000 (measuring current 0.1 ... 0.3 mA) 2)
Max. 85 °C (185 °F)
■■ 3-wire With a cable length of 30 m or longer, measuring deviations can occur
■■ 4-wire The lead resistance can be ignored
■■ Class AA (1/3 DIN) 4)
■■ Class A 3)
t50 < 3.2 s t90 < 7.3 s
M12 x 1, 4-pin circular connector
Intrinsically safe to Ex i (ATEX) gas/dust, per directive 94/9/EC
(for further information see “Further specifications for explosion-protected version”)
■■
■■
■■
■■
For detailed specifications for Pt sensors, see Technical information IN 00.17 at www.wika.com.
Readings in % refer to the measuring span
1) The temperature transmitter should therefore be protected from temperatures over 85 °C (185 °F).
2) Through their small design, face-sensitive measuring resistors serve to reduce the heat dissipation with short insertion lengths. Available for the temperature range up to 150 °C (302 °F).
For thermowell insertion lengths of less than 11 mm, face-sensitive measuring resistors are generally used.
3) Class accuracy A only valid in the temperature range -30 ... +150 °C (-22 ... +302 °F) or -30 ... +250 °C (-22 ... +482 °F), otherwise class B
4) Class accuracy AA (1/3 DIN) only valid in the temperature range 0 ... 150 °C (32 ... 302 °F)
5) ±0.2 % for measuring ranges with a lower limit less than 0 °C (32 °F)
6) Use resistance thermometers with shielded cable, and ground the shield on at least one end of the lead, if the lines are longer than 30 m or leave the building. The instrument must be
operated grounded.
7) During interference consider an increased measuring deviation of up to 2 %.
Page 2 of 10
WIKA data sheet TE 60.27 ∙ 11/2014
Case
Material
Ingress protection
■■ Case with connected connector
■■ Coupler connector, not connected
Weight in kg
Stainless steel
IP 67 and IP 69K per IEC 60529/EN 60529
The stated ingress protection only applies when plugged in using mating
connectors that have the appropriate ingress protection.
IP 67 per IEC 60529/EN 60529
approx. 0.3 ... 2.5 (depending on version)
Ambient conditions
Ambient temperature range
■■ Standard version (model TR21-B-Zxx)
■■ Explosion-protected version
- Models TR21-B-xTT, TR21-B-xTB
- Models TR21-B-xPx, TR21-B-xRx
Storage temperature range
Climate class per IEC 60654-1
■■ Standard version (model TR21-B-Zxx)
■■ Explosion-protected version
- Models TR21-B-xTT, TR21-B-xTB
- Models TR21-B-xPx, TR21-B-xRx
Maximum permissible humidity per IEC 60068-2-30 var. 2
Shock
Salt fog
Accuracy 8)
Thermowell model TW61
Designs
Nominal widths of pipe
Surface roughness
-50 ... +85 °C (-58 ... +185 °F)
-40 ... +85 °C (-40 ... +185 °F)
-50 ... +85 °C (-58 ... +185 °F)
-40 ... +85 °C (-40 ... +185 °F)
Cx (-50 ... +85 °C or -58 ... +185 °F, 5 ... 95 % r. h.)
Cx (-40 ... +85 °C or -40 ... +185 °F, 5 ... 95 % r. h.)
Cx (-50 ... +85 °C or -58 ... +185 °F, 5 ... 95 % r. h.)
100 % r. h., condensation allowed
IEC 60068-2-27
IEC 60068-2-11
-1 Kelvin
■■ Flow-through housing
■■ Angular housing
cf. tables of dimensions
Per DIN 11866 row A, B:
Standard: Ra < 0.8 μm
Option: Ra < 0.4 μm electropolished
Per DIN 11866 row C, ASME-BPE:
Standard: Ra < 0.76 μm
Option: Ra < 0.38 μm electropolished
Materials
Connection to thermometer
Thermowell diameter
Neck tube length M
Pressure ratings
Pipe lengths TL and L1, thermowell insertion length U1
others on request
Per DIN 11866 row A, B: stainless steel 1.4435
Per DIN 11866 row C, ASME-BPE: stainless steel 316L
G 3/8"
cf. tables of dimensions
The neck tube length M is adjusted to the length A of 60 mm.
further lengths to customer specifications
cf. tables of dimensions
cf. tables of dimensions
8) Measured at 100 °C
WIKA data sheet TE 60.27 ∙ 11/2014
Page 3 of 10
Further specifications for explosion-protected version (optional)
■■ Thermometer with transmitter and output signal 4 ... 20 mA (models TR21-B-xTT, TR21-B-xTB)
Marking:
Hazardous gas
atmosphere
II 1G Ex ia IIC T1 - T6 Ga
II 1/2G Ex ia IIC T1 - T6 Ga/Gb
II 2G Ex ia IIC T1 - T6 Gb
Hazardous dust
atmosphere
II 1D Ex ia IIIC T135 °C Da
II 1/2D Ex ia IIIC T135 °C Da/Db
II 2D Ex ia IIIC T135 °C Db
Temperature
class
T6
T5
T4
T3
T2
T1
Power Pi
750 mW
650 mW
550 mW
Ambient temperature
range (Ta)
-40 ... +45 °C
-40 ... +60 °C
-40 ... +85 °C
-40 ... +85 °C
-40 ... +85 °C
-40 ... +85 °C
Ambient temperature
range (Ta)
-40 ... +40 °C
-40 ... +70 °C
-40 ... +85 °C
Maximum surface temperature (Tmax) at
the sensor or thermowell tip
TM (medium temperature) + self-heating (15 K)
Pay attention to the specific conditions for safe use.
Maximum surface temperature (Tmax) at
the sensor or thermowell tip
TM (medium temperature) + self-heating (15 K)
Pay attention to the specific conditions for safe use.
Safety-related maximum values for the current loop circuit (+ and - connections):
Parameters
Hazardous gas atmosphere
Hazardous dust atmosphere
Terminals
Voltage Ui
Current li
Power Pi
Effective internal capacitance Ci
Effective internal inductance Li
Maximum self-heating at the sensor or thermowell tip
+/DC 30 V
120 mA
800 mW
29.7 nF
Negligible
15 K
+/DC 30 V
120 mA
750/650/550 mW
29.7 nF
Negligible
15 K
■■ Thermometer with direct sensor output with Pt100 (model TR21-B-xPx) or Pt1000 (model TR21-B-xRx)
Marking:
Marking
II 1G Ex ia IIC T1 - T6 Ga
II 1/2G Ex ia IIC T1 - T6 Ga/Gb
II 2G Ex ia IIC T1 - T6 Gb
Temperature
class
T6
T5
T4
T3
T2
T1
Marking
Power Pi
II 1D Ex ia IIIC T135 °C Da
II 1/2D Ex ia IIIC T135 °C Da/Db
II 2D Ex ia IIIC T135 °C Db
750 mW
650 mW
550 mW
Ambient temperature
range (Ta)
-50 ... +80 °C
-50 ... +85 °C
-50 ... +85 °C
-50 ... +85 °C
-50 ... +85 °C
-50 ... +85 °C
Ambient temperature
range (Ta)
-50 ... +40 °C
-50 ... +70 °C
-50 ... +85 °C
Maximum surface temperature (Tmax) at
the sensor or thermowell tip
TM (medium temperature) + self-heating
Pay attention to the specific conditions for safe use
(17).
Maximum surface temperature (Tmax) at
the sensor or thermowell tip
TM (medium temperature) + self-heating
Pay attention to the specific conditions for safe use
(17).
Safety-related maximum values for the current loop circuit (connections in accordance with pin assignment 1 - 4):
Parameters
Gas applications
Dust applications
Terminals
Voltage Ui
Current li
Power Pi
Effective internal capacitance Ci
Effective internal inductance Li
Maximum self-heating at the sensor or thermowell tip
1-4
DC 30 V
550 mA
1,500 mW
Negligible
Negligible
(Rth) = 335 K/W
1-4
DC 30 V
250 mA
750/650/550 mW
Negligible
Negligible
(Rth) = 335 K/W
Page 4 of 10
WIKA data sheet TE 60.27 ∙ 11/2014
Overview of the process connections
14000996.01
Flow-through housing
14000996.01
Angular housing
WIKA data sheet TE 60.27 ∙ 11/2014
Page 5 of 10
Dimensions of the process connections in mm (thermowells model TW61)
1)
2)
14000996.01
Flow-through housing
1) In the event of replacement, calculate the
sensor insertion length, l1, as follows:
l1 (TR21-B) = U1 + M + 3 mm
2) The tolerance specification is dependent
on the spring travel of the sensor/probe
Nominal width Nominal pressure
of pipe
in bar
3) 4)
Outer diameter
of pipe
Pipe
schedule
s
TL
Thermowell
insertion length
Neck tube
length
DN / OD
PN
10
15
20
25
32
40
50
65
80
100
25
25
25
25
25
25
25
16
16
12.5
13
19
23
29
35
41
53
70
85
104
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.0
2.0
2.0
70
70
80
100
110
120
160
210
260
310
6
9
11
18
18
18
30
30
45
45
51
48
46
39
39
39
27
27
32
32
8 (13.5)
10 (17.2)
15 (21.3)
20 (26.9)
25 (33.7)
32 (42.4)
40 (48.3)
50 (60.3)
65 (76.1)
80 (88.9)
25
25
25
25
25
25
25
25
16
16
13.5
17.2
21.3
26.9
33.7
42.4
48.3
60.3
76.1
88.9
1.6
1.6
1.6
1.6
2.0
2.0
2.0
2.0
2.0
2.3
64
68
72
110
120
130
130
180
220
260
6
9
11
11
18
18
18
30
30
45
51
48
46
46
39
39
39
27
27
32
1/2"
13.8
13.8
13.8
13.8
13.8
13.8
13.8
13.8
12.7
19.05
25.4
38.1
50.8
63.5
76.2
101.6
1.65
1.65
1.65
1.65
1.65
1.65
1.65
2.11
95.2
101.6
108.0
120.6
146.0
158.8
171.4
209.6
6
9
11
18
18
30
30
45
51
48
46
39
39
27
27
32
DIN 11866 row A or metric
DIN 11866 row B or ISO
DIN 11866 row C or ASME BPE
3/4"
1"
1 1/2"
2"
2 1/2"
3"
4"
ØD
Pipe length
U1
M
3) Maximum operating temperature 150 °C
4) All thermowells of this series that are internally pressurised, with a nominal diameter (DN) > 25 mm, are manufactured and tested to module H of the Pressure Equipment Directive, 97/23/EC.
Page 6 of 10
WIKA data sheet TE 60.27 ∙ 11/2014
Angular housing
14000996.01
6)
5)
5) In the event of replacement, calculate the sensor insertion length, l1, as follows:
l1 (TR21-B) = U1 + M + 3 mm
6) The tolerance specification is dependent on the spring travel of the sensor/probe
Nominal
Nominal
Outer diameter
width of pipe pressure in bar of pipe
7) 8)
ØD
Pipe
schedule
s
Pipe
length
Pipe
length
L1
U1
Neck tube
length
DN / OD
PN
10
15
20
25
32
40
50
65
80
100
25
25
25
25
25
25
25
16
16
12.5
13
19
23
29
35
41
53
70
85
104
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.0
2.0
2.0
35
35
40
50
55
60
80
105
130
155
55
55
63
77
87
97
126
165
201
241
14
18
18
30
30
30
30
45
45
45
43
39
39
27
27
27
27
32
32
32
8 (13.5)
10 (17.2)
15 (21.3)
20 (26.9)
25 (33.7)
32 (42.4)
40 (48.3)
50 (60.3)
65 (76.1)
80 (88.9)
25
25
25
25
25
25
25
25
16
16
13.5
17.2
21.3
26.9
33.7
42.4
48.3
60.3
76.1
88.9
1.6
1.6
1.6
1.6
2.0
2.0
2.0
2.0
2.0
2.3
32
34
36
55
60
65
65
90
110
130
55
55
58
81
91
102
108
145
173
203
14
16
18
30
30
30
30
45
45
45
43
41
39
27
27
27
27
32
32
32
1/2"
3/4"
13.8
13.8
13.8
13.8
13.8
13.8
13.8
13.8
12.7
19.05
25.4
38.1
50.8
63.5
76.2
101.6
1.65
1.65
1.65
1.65
1.65
1.65
1.65
2.11
47.6
50.8
54.0
60.3
73.0
79.4
85.7
104.8
71
71
79
94
118
134
150
190
14
18
18
30
30
45
45
45
43
39
39
27
27
32
32
32
DIN 11866 row A or metric
DIN 11866 row B or ISO
DIN 11866 row C or ASME BPE
1"
1 1/2"
2"
2 1/2"
3"
4"
TL
Thermowell
insertion length
M
7) Maximum operating temperature 150 °C
8) All thermowells of this series that are internally pressurised, with a nominal diameter (DN) > 25 mm, are manufactured and tested to module H of the Pressure Equipment Directive, 97/23/EC.
WIKA data sheet TE 60.27 ∙ 11/2014
Page 7 of 10
Accessories
Model
Special features
Order no.
Programming unit
Model PU-448
■■ Easy to use
11606304
■■ LED status/diagnostic displays
■■ Compact design
■■ No further voltage supply is needed for either the programming unit or for the transmitter
Adapter cable M12 to PU-448
Adapter cable for the connection of a model TR21-B resistance thermometer to the
PU-448 programming unit
14003193
Configuration software WIKAsoft-TT
Configuration software
(multilingual) as a download
from www.wika.com
Page 8 of 10
WIKA data sheet TE 60.27 ∙ 11/2014
Connecting PU-448 programming unit
14004919.01
Adapter cable PU-448 to M12
TR21-B
Electrical connection
Pin
Signal
Description
1
2
3
4
L+
VQ
LC
10 ... 30 V
not connected
0V
not connected
Load diagram
The permissible load depends on the loop supply voltage.
For communication with the instrument with programming
unit PU-448, a max. load of 350 Ω is admissible.
WIKA data sheet TE 60.27 ∙ 11/2014
Output signal Pt100 sensor
M12 x 1, 4-pin circular connector
1083
833
Load RA in Ω
Output signal 4 ... 20 mA
M12 x 1, 4-pin circular connector
583
Not for instruments
with Ex version
0
10
2430 36
Voltage UB in V
Page 9 of 10
Hygienic design
Neck tube
Dead-space minimised
Measuring insert
Thermowell
ATEX directive (option)
94/9/EG, II 1G Ex ia IIC T1 - T6 Ga
II 1/2G Ex ia IIC T1 - T6 Ga/Gb
II 2G Ex ia IIC T1 - T6 Gb
II 1D Ex ia IIIC T135 °C Da
II 1/2D Ex ia IIIC T135 °C Da/Db
II 2D Ex ia IIIC T135 °C Db
Process tube
Approvals (option)
■■ IECEx, ignition protection type “i” - intrinsic safety, ignition
The patented hygienic design of the TW61 flow-through
housing enables dead-space minimised, invasive
temperature measurement and, through self-draining, a
flexible mounting position.
CE conformity
Pressure equipment directive
97/23/EC, PS > 200 bar, module H, pressure accessory
For thermowells > DN 25 (1") and for the associated marking
on the measuring instrument or thermowell, WIKA confirms
conformity with the 97/23/EC Pressure Equipment Directive
in accordance with the conformity assessment procedure,
module H.
For thermowells with nominal widths of ≤ DN 25 (1"), an
EC conformity evaluation in accordance with the Pressure
Equipment Directive (PED) is not permitted. Those are
designed and manufactured without CE marking in line with
the applicable sound engineering practice (PED article 3,
chapter 3).
protection type “iD” - dust protection through intrinsic
safety, international certification for the Ex area
■■ 3-A, food, USA
Certificates (option)
■■ 2.2 test report
■■ 3.1 inspection certificate
■■ DKD/DAkkS certificate
■■ Hygiene certificate
Certificate Flow-through housing
3-A
yes, for all dimensions
Angular housing
yes, from
DIN 11866 row A: DN 32
DIN 11866 row B: DN 33.7
DIN 11866 row C: DN 1 ½"
Patents, property rights
Dead-space free welding nipple for thermowell model TW61,
registered under no. DE 102010037994 and US 12 897.080
Approvals and certificates, see website
EMC directive 1)
2004/108/EC, EN 61326 emission (group 1, class B) and
interference immunity (industrial application)
1) Only for built-in transmitter
Ordering information
Model / Approval / Sensor or transmitter output / Sensor specification or transmitter configuration / Process temperature /
Thermowell / Process connection / Material wetted parts / Insertion length U1 / Electrical accessories / Certificates / Options
Page 10 of 10
WIKA data sheet TE 60.27 ∙ 11/2014
WIKA Alexander Wiegand SE & Co. KG
Alexander-Wiegand-Straße 30
63911 Klingenberg/Germany
Tel.
+49 9372 132-0
Fax
+49 9372 132-406
[email protected]
www.wika.de
11/2014 EN
© 2010 WIKA Alexander Wiegand SE & Co. KG, all rights reserved.
The specifications given in this document represent the state of engineering at the time of publishing.
We reserve the right to make modifications to the specifications and materials.