measuring
Bimetallic Thermometers
•
monitoring
for industrial applications,
Accuracy Class 1
•
analysing
T2
TBI-I... / -S...
OO
Fast response times
OO
Large selection of standard versions
OO
Special versions at customer request
OO
Nominal sizes: 63, 80 and 100 mm
OO
Temperatures: -30 ... +50 °C to 0 ... 500 °C
1/11 - 2017
KOBOLD companies worldwide:
ARGENTINA, AUSTRALIA, AUSTRIA, BELGIUM, BULGARIA, CANADA, CHILE, CHINA, COLoMBIA,
CZECHIA, EGYPT, FRANCE, GERMANY, GREAT BRITAIN, HUNGARY, INDIA, INDONESIA, ITALY,
MALAYSIA, MEXICO, NETHERLANDS, PERU, POLAND, Republic of Korea, ROMANIA,
SINGAPORE, SPAIN, SWITZERLAND, TAIWAN, THAILAND, TUNISIA, turkey, USA, VIETNAM
KOBOLD Messring GmbH
Nordring 22-24
D-65719 Hofheim/Ts.
Head Office:
+49(0)6192 299-0
+49(0)6192 23398
info.de@kobold.com
www.kobold.com
1
Bimetallic Thermometers with Immersion Probe and Thermowells Model TBI-S
Application and Description
The bimetallic thermometers are used on site for direct
temperature measurement. A wide range of standard versions
allows a variety of applications. Furthermore special versions
are manufactured to customer specification.
Special areas of application are for example heavy industrial
plants, piping and vessels, machines etc.
The devices are installed into a thermowell with adjusting
screw. Simply screw in the thermowell, plug in the
thermometerand clamp with the adjusting screw.
Method of Operation
The measuring element of the bimetallic thermometer is a
fast-response bimetallic helix. It is manufactured from two
cold-welded strips of metal with different thermal coefficients
of expansion and it becomes twisted as a function of
temperature.The rotary motion is transferred with low friction
to the pointer.
Features
OO High-quality, low-friction, particularly stable bimetallic
system in accuracy class 1
OO Short temperature damping time with optimised
adaptation of the protective tube to the special light-metal
bulb
OO Reduced vibration effects with ruggedised and
overtemperature protected bimetallic element
OO Extremely solid and torsionally strong case
OO Fast and perfect measuring-point sealing with specially
roughened protective tube thread
Technical Details
Permissable operating
pressure of thermowell: 6 bar with copper alloy
25 bar with steel St 35 or
stainless steel 1.4571
Measuring element: bimetallic helix
Dial angle: approximately 270°
Range of application: continuous measuring range
short-time (< 1 h): 1.1 meas. range
Accuracy: category 1 (according to DIN 16203)
Display correction: adjusting pointer
Casing: stainless steel 1.4301
Connection: bottom or centre back
Protective tube: copper alloy, St 35, st. steel 1.4571
Connection
construction:
smooth, D = 8 mm with collar
for protective tube
Window:
instrument glass
Dial face: aluminium matt finish with fine
graduation, dial and inscription
black
Pointer:
aluminium black, trimming pointer
Order Details (Example: TBI-SRD 35 045 1 R)
Nominal
Connection
size
TBI-SRD..
63 mm
TBI-SRE..
80 mm
TBI-SRF..
100 mm
TBI-SUF..
100 mm
..35.. = -30 ... +50 °C, division 1 °C
..26.. = -20 ... +60 °C, division 1 °C
centre back ..06.. = 0 ... +60 °C, division 1 °C
..08.. = 0 ... +80 °C, division 1 °C
..10.. = 0 ... +100 °C,
division 2 °C1)
..12.. = 0 ... +120 °C,
division 2 °C/
..16.. = 0 ... +160 °C,
bottom
division 2 °C ..20.. = 0 ... +200 °C,
division 5 °C ..25.. = 0 ... +250 °C,
division 5 °C Please specify options in writing
2
with Thermowell
Measuring range
1)
Length (L1)
..063..= 63 mm
..100..= 100 mm
..160..= 160 mm
..200..= 200 mm
Material
Connection
..00.. = without thermowell st. steel 1.4571
..1.. = copper alloy
..2.. = St 35
..3.. = st. steel 1.4571
..R = G ½ male
Length (L2)
..043..= 43 mm
..080..= 80 mm
..140..= 140 mm
..180..= 180 mm
..00.. = without thermowell st. steel 1.4571
..2.. = St 35
..3.. = st. steel 1.4571
..S = welded
Not with bottom connection
www.kobold.com
No responsibility taken for errors;
subject to change without prior notice.
1/11 - 2017
Model
Bimetallic Thermometers with Threaded Connection Suitable for Thermowells according to DIN
Model TBI-I
Application and Description
The bimetallic thermometers are used on site for direct
temperature measurement. A wide range of standard
versions allows a variety of applications. Furthermore special
versions are manufactured to customer specification. The
device is installed directly or by screwing into a thermowell
according to DIN.
Method of Operation
The measuring element of the bimetallic thermometer is a
fast-response bimetallic helix. It is manufactured from two
cold-welded strips of metal with different thermal coefficients
of expansion and it becomes twisted as a function of
temperature. The rotary motion is transferred with low friction
to the pointer.
Features
OO High-quality, low-friction, particularly stable bimetallic
system in accuracy class 1
OO Short temperature damping time with optimised
adaptation of the thermowell to the special light-metal
bulb
OO Reduced vibration effects with ruggedised and
overtemperature protected bimetallic element
OO Extremely solid and torsionally strong case
OO Fast and perfect measuring-point sealing with specially
roughened thread
Order Details (Example: TBI-IRD 35 045 3 G)
1/11 - 2017
Model
Nominal
Connection
size
TBI-IRD..
63 mm
TBI-IRE..
80 mm
TBI-IRF..
100 mm
TBI-IUF..
100 mm
centre back
bottom
No responsibility taken for errors;
subject to change without prior notice.
Technical Details
Permissable operating
pressure of thermowell: max. 25 bar
Measuring element: bimetallic helix
Dial angle: approximately 270°
Range of application: continuous measuring range
short-time (< 1 h): 1.1 meas. range
Accuracy: category 1 (acc. to DIN 16203)
Display correction: adjusting pointer
Casing: stainless steel 1.4301
Immersion tube: stainless steel1.4571
Connection: bottom or centre back
Connection
construction:
G ½ male thread
Immersion probe: D = 8 mm
Window: instrument glass
Dial face: aluminium matt finish with fine
graduation, dial and inscription
black
Pointer: aluminium black, trimming pointer
Option:
dual scale °C/°F
scaling °F
gliding mark pointer
max. pointer
Measuring range
..35.. = -30 ... +50 °C, division 1 °C
..26.. = -20 ... +60 °C, division 1 °C
..06.. = 0 ... +60 °C, division 1 °C
..08.. = 0 ... +80 °C, division 1 °C
..10.. = 0 ... +100 °C, division 2 °C
..12.. = 0 ... +120 °C, division 2 °C
..16.. = 0 ... +160 °C, division 5 °C
..25.. = 0 ... +250 °C, division 5 °C
..30.. = 0 ... +300 °C, division 5 °C ..40.. = 0 ... +400 °C, division 5 °C
..50.. = 0 ... +500 °C, division 5 °C
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Probe
Length (L1)
Material
Connection
..063..= 63 mm
..100..= 100 mm
..160..= 160 mm ..3.. = st. st. 1.4571 ..G = G ½ male
..200..= 200 mm
..250..= 250 mm
3
Bimetallic Thermometers Model TBI-S /TBI-I
Dimensions
with smooth immersion probe and thermowells
Thermowell
Model
TBI-SU...
48
¯8
¯8
¯8
Dimensions in [mm]
b
63
16
80
17
100
21
¯8
¯8
F1
F2
100
70
78
¯10
¯10 ¯10
¯10
l2
l2
33
33
13
G1/2AG1/2A
¯26 ¯26
¯10
¯10
Dimensions see Order Details
Dimensions in [mm]
D (NG)
¯24
l1
l2
l1
G1/2A
¯26
¯8
13
33
13
¯18
l1
¯18
¯24
¯24
SW27 SW27
SW27
¯18
D (NG)
F1
16
F1
¯D
16
b
b
b
¯D
16
for welding in
48
F2
F1
¯D
¯D
F2
¯D
¯D
48
for screwing in
F2
Model
TBI-SR...
with thread connection for thermowells according to DIN
Model
TBI-IR... (from 300 °C)
Model
TBI-IR... (up to 250 °C)
b bModel
TBI-IU...
a a
¯D
F
F
l1
a
¯8
¯8
F
SW27
SW27
SW27
l1
l1
¯D
¯D
¯8
¯8
G1/2A
30
SW27
SW27
l1
¯8
SW27
SW27
l1 l1
G1/2A
G1/2A
¯26
¯26
b
¯D
¯D
¯D
¯D
G1/2A
13
l1
G1/2A
G1/2A
b
b b
30 30
¯8
l1 l1
13 13
¯26
b b
¯D
¯D
b
SW27
SW27
G1/2A
G1/2A
¯26 ¯26
G1/2A
¯26 ¯8 ¯8
¯8
Dimensions in [mm]
D (NG)
b
D (NG)
b
D (NG)
a
b
F
63
29
63
46
100
17
44
83
80
30
80
47
35
100
52
100
4
Dimensions in [mm]
www.kobold.com
No responsibility taken for errors;
subject to change without prior notice.
1/11 - 2017
Dimensions in [mm]
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