Mechanical
temperature measurement
Bimetal thermometer
Model 54, industrial series
WIKA data sheet TM 54.01
for further approvals
see page 6
Applications
■■ General process instrumentation in the chemical and
petrochemical industries, oil and gas industries, energy
and water/wastewater industries
■■ Temperature measurement in harsh and aggressive
environments
■■ With liquid damping also suitable for applications with high
vibrations
Special features
■■ Scale ranges from -70 ... +500 °C
■■ Case and stem from stainless steel
■■ Bimetal with zero point adjustment at the back of the case
■■ Individual stem length from 63 ... 1,000 mm
■■ DNV GL approval (option)
Description
The model 54 bimetal thermometer has been developed and
is manufactured in accordance with the EN 13190 standard.
The thermometer meets the high requirements of the process
industries.
Fig. left: bimetal thermometer model A5402
Especially in the chemical and petrochemical, oil and Fig. right: bimetal thermometer, adjustable stem and
gas, power engineering and shipbuilding industries, the dial version model S5412
temperature measuring instrument manufactured from
stainless steel is used successfully. Through the high ingress
protection of the thermometer (IP65) and its liquid damping,
operation under high vibration conditions is possible.
The model 54 satisfies the high requirements for resis-
tance against aggressive media. As an option, the casing,
the stem and the process connection can be made from
316Ti (1.4571).
To allow optimum fitting to the process, individual insertion
lengths and different process connections can be selected.
WIKA data sheet TM 54.01 ∙ 07/2017 Page 1 of 7
Standard version
Measuring element Insertion length L1
Bimetal coil 63 ... 1,000 mm
minimum/maximum length is dependent on the measuring
Nominal size in mm range and diameter
63, 80, 100, 160
Permissible ambient temperature at case
Connection designs -20 ... +60 °C (others on request)
S Standard (male thread connection) 1)
1 Plain stem (without thread) Temperature limits for storage and transport
2 Male nut -20 ... +60 °C (EN 13190)
3 Union nut
4 Compression fitting (sliding on stem) Permissible operating pressure at the stem
5 Union nut with fitting max. 25 bar, static
1) Not for version “adjustable stem and dial”
Ingress protection
Model overview IP65 per IEC/EN 60529
Model NS Design
A5400 63 Back mount (axial)
Options
A5401 80
A5402 100 ■■ Scale range °F, °C/°F (dual scale)
A5403 160 ■■ Liquid damping up to max. 250 °C (at the sensor)
R5440 63 Lower mount (radial) ■■ DNV GL approval in connection with liquid damping, not
with adjustable stem and dial design or NS 160, vibration
R5441 80
loading 25 ... 200 Hz, 5 g (for further information see
R5442 100
certificate No. 40156-01 HH)
R5443 160 ■■ Laminated safety glass, polycarbonate
S5410 63 Back mount, adjustable stem and dial ■■ Stem diameter 6, 10 mm
S5411 80 ■■ Ingress protection IP66
■■ Special measuring ranges or dial printing to customer
S5412 100
specifications (on request)
S5413 160 ■■ Version per ATEX
Accuracy class
Class 1 per EN 13190
Working range
Normal (1 year): Measuring range (EN 13190)
Short time (24 h max.): Scale range (EN 13190)
Case, ring
Stainless steel 1.4301 (304)
Stem, process connection
Stainless steel 1.4571 (316Ti)
Elbow behind the case
Aluminium, only with lower mount version
Dial
Aluminium, white, black lettering
Window
Instrument glass
Pointer
Aluminium, black, adjustable pointer
Page 2 of 7 WIKA data sheet TM 54.01 ∙ 07/2017
Scale ranges and measuring ranges 1) (EN 13190)
Scale graduation per WIKA standard
Scale range Measuring range 1) Scale spacing Scale range Measuring range 1) Scale spacing
in °C in °C in °C in °F in °F in °F
-70 ... +70 -50 ... +50 2 -80 ... +120 -40 ... +100 2
-70 ... +30 -60 ... +20 1 -80 ... +240 -50 ... +210 2
-50 ... +50 -40 ... +40 1 -20 ... +120 0 ... 100 2
-50 ... +100 -30 ... +80 2 0 ... 200 20 ... 180 2
-50 ... +300 0 ... 250 5 0 ... 250 30 ... 220 2
-50 ... +500 0 ... 450 5 30 ... 300 60 ... 270 5
-30 ... +50 -20 ... +40 1 30 ... 400 80 ... 350 5
-20 ... +60 -10 ... +50 1 50 ... 300 80 ... 270 5
-20 ... +80 -10 ... +70 1 50 ... 400 100 ... 350 5
-20 ... +100 0 ... 80 2 100 ... 800 200 ... 700 5
-20 ... +120 0 ... 100 2 200 ... 700 250 ... 650 5
0 ... 60 10 ... 50 1 200 ... 1.000 300 ... 900 5
0 ... 80 10 ... 70 1
1) The measuring range is indicated on the dial by two triangular marks.
0 ... 100 10 ... 90 1 Only within this range is the stated error limit valid per EN 13190.
0 ... 120 10 ... 110 2
0 ... 160 20 ... 140 2
0 ... 200 20 ... 180 2
0 ... 250 30 ... 220 2
0 ... 300 30 ... 270 5
0 ... 400 50 ... 350 5
0 ... 500 50 ... 450 5
Connection designs
Design standard (male thread connection) 2)
3073050.05
Standard insertion length l1 = 100, 160, 200, 250 mm
Nominal size Process connection Dimensions in mm
NS G i SW d4 Ød
63, 80, 100, 160 G ½ B 14 27 26 8
G¾B 16 32 32 8
½ NPT 19 22 - 8
Legend:
¾ NPT 20 30 - 8 G Male thread SW Spanner width
i Thread length Ød Stem diameter
1) Not for version “adjustable stem and dial”
Ø d4 Diameter of the sealing collar l2 active length
Design 1, plain stem (without thread)
Standard insertion lengths I1 = 100, 140, 160, 200, 240, 290 mm
3073050.05
Basis for design 4, compression fitting
Nominal size Dimensions in mm
NS d1 Ød a for a for
axial adjustable stem and dial
63, 80, 100, 160 18 8 15 25 Legend:
a Distance to the case/ Ød Stem diameter
articulated joint l2 active length
Ø d1 Plain diameter
WIKA data sheet TM 54.01 ∙ 07/2017 Page 3 of 7
Design 2, male nut
Standard insertion length l1 = 140, 180, 230 mm
3073050.05
Nominal size Process connection Dimensions in mm
NS G i SW Ød
63, 80, 100, 160 G ½ B 20 27 8
M18 x 1.5 12 24 8
Legend:
G Male thread Ø d Stem diameter
i Thread length incl. collar l2 active length
SW Spanner width
Design 3, union nut
Standard insertion length l1 = 126, 186, 226, 276 mm
3073050.05
Nominal size Process connection Dimensions in mm
NS G i SW Ød
63, 80, 100, 160 G ½ B 8,5 27 8
G¾B 10.5 32 8
M24 x 1.5 13.5 32 8
Legend:
G1 Female thread Ø d Stem diameter
i Thread length l2 active length
SW Spanner width
Design 4, compression fitting (sliding on stem)
Insertion length l1 = variable
3073050.05
Length L = l1 + 40 mm
Nominal size Process connection Dimensions in mm
NS G i SW d4 Ød
63, 80, 100, 160 G ½ B 14 27 26 8
G¾B 16 32 32 8 Sealing ring
½ NPT 19 22 - 8
¾ NPT 20 30 - 8
Legend:
G Male thread SW Spanner width
i Thread length Ø d Stem diameter
Ø d4 Diameter of the sealing collar l2 active length
Design 5, union nut and fitting
Standard insertion length l1 = 100, 160, 200, 250 mm
3073050.05
Nominal size Process connection Dimensions in mm
NS G i SW d4 Ød
63, 80, 100, 160 G ½ B 14 27 26 8
G¾B 16 32 32 8
½ NPT 19 22 - 8
Legend:
¾ NPT 20 30 - 8 G Male thread SW Spanner width
i Thread length Ø d Stem diameter
Ø d4 Diameter of the sealing collar l2 active length
Page 4 of 7 WIKA data sheet TM 54.01 ∙ 07/2017
Dimensions in mm
Back mount (axial) Lower mount (radial)
3280897.01
3280919.01
NS Dimensions in mm Weight in kg
b b1 1) b2 ØD Ød Ø d4 F 1) R U
63 20 35 38 68 8 2) 26 47 0.20 0.30
80 20 35 38 77 8 2) 26 56 0.25 0.35
100 22 37 40 107 8 2) 26 66 0.35 0.45
160 25 40 43 161 8 2) 26 96 0.50 0.60
Adjustable stem and dial version
3280854.01
NS Dimensions in mm Weight
b b3 ØD Ød F in kg
63 20 63 68 8 2) 66 0.35
80 20 63 77 8 2) 66 0.40
100 22 65 107 8 2) 66 0.50
160 25 68 161 8 2) 66 0.65
1) With scale ranges ≥ 0 ... 300 °C the dimensions increase by 40 mm R Back mount (BM)
2) Option: Stem Ø 6, 10 mm U Lower mount (LM)
WIKA data sheet TM 54.01 ∙ 07/2017 Page 5 of 7
Thermowell
In principle, the operation of a mechanical thermometer
without a thermowell with low process-side loading (low
pressure, low viscosity and low flow velocities) is possible.
However, in order to enable exchanging the thermometer
during operation (e.g. instrument replacement or calibration)
and to ensure a better protection of the instrument and
also the plant and the environment, it is advisable to use a
thermowell from the extensive WIKA thermowell portfolio.
For further information on the calculation for the thermowell,
see Technical information IN 00.15.
Approvals
Logo Description Country
EU declaration of conformity European Union
ATEX directive (option)
Hazardous areas
EAC (option) Eurasian Economic Community
■■ Import certificate
■■ Permission for commissioning
■■ Hazardous areas
GOST (option) Russia
Metrology, measurement technology
KazInMetr (option) Kazakhstan
Metrology, measurement technology
- MTSCHS (option) Kazakhstan
Permission for commissioning
BelGIM (option) Belarus
Metrology, measurement technology
UkrSEPRO (option) Ukraine
Metrology, measurement technology
Uzstandard (option) Uzbekistan
Metrology, measurement technology
DNV GL (option) International
■■ Ships, shipbuilding (e.g. offshore)
■■ Hazardous areas
- CRN (option) Canada
Safety (e.g. electr. safety, overpressure, ...)
Certificates (options)
■■ 2.2 Test report
■■ 3.1 inspection certificate
■■ DKD/DAkkS calibration certificate
Approvals and certificates, see website
Page 6 of 7 WIKA data sheet TM 54.01 ∙ 07/2017
Ordering information
Model / Nominal size / Scale range / Connection design / Connector size / Insertion length l1 / Options
© 04/2008 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.
WIKA data sheetTM 54.01 ∙ 07/2017 Page 7 of 7
07/2017 EN
WIKA Alexander Wiegand SE & Co. KG
Alexander-Wiegand-Straße 30
63911 Klingenberg/Germany
Tel. +49 9372 132-0
Fax +49 9372 132-406
info@wika.de
www.wika.de
