Page 1
TI01100T/09/EN/02.13
71226928
Products Solutions Services
Technical Information
Omnigrad M TR15, TC15
Modular thermometer with extension neck,
barstock thermowell, available with a flange or as
a weld-in unit
TR15 Resistance thermometer (RTD)
TC15 Thermometer with thermocouple (TC)
Application
• Universal range of application
• Particularly suitable for steam and gas applications with high process pressures
and temperatures
• Measuring range:
– Resistance insert (RTD): –200 to 600 °C (–328 to 1 112 °F)
– Thermocouple (TC): –40 to 1 100 °C (–40 to 2 012 °F)
• Static pressure range up to 400 bar (5 800 psi)
• Degree of protection up to IP68
Head transmitter
All Endress+Hauser transmitters are available with enhanced accuracy and reliability
compared to directly wired sensors. Easy customizing by choosing one of the
following outputs and communication protocols:
• Analog output 4 to 20 mA
• HART
• PROFIBUS® PA
• FOUNDATION Fieldbus™
Your benefits
• High degree of flexibility thanks to modular design with standard terminal heads
• High compatibility with a design according to DIN 43772
• Extension neck to protect the head transmitter from overheating
• Fast response time with reduced/tapered tip form
• Types of protection for use in hazardous locations:
®
as per DIN EN 50446 and customer-specific immersion lengths
– Intrinsic Safety (Ex ia)
– Non-sparking (Ex nA)
Page 2
Function and system design
Measuring principle Resistance thermometer (RTD)
These resistance thermometers use a Pt100 temperature sensor according to IEC 60751. The
temperature sensor is a temperature-sensitive platinum resistor with a resistance of 100 Ω at
0 °C (32 °F) and a temperature coefficient α = 0.003851 °C-1.
There are generally two different kinds of platinum resistance thermometers:
• Wire wound (WW): Here, a double coil of fine, high-purity platinum wire is located in a ceramic
support. This is then sealed top and bottom with a ceramic protective layer. Such resistance
thermometers not only facilitate very reproducible measurements but also offer good long-term
stability of the resistance/temperature characteristic within temperature ranges up to
600 °C (1 112 °F). This type of sensor is relatively large in size and it is comparatively sensitive to
vibrations.
• Thin film platinum resistance thermometers (TF): A very thin, ultrapure platinum layer,
approx. 1 μm thick, is vaporized in a vacuum on a ceramic substrate and then structured
photolithographically. The platinum conductor paths formed in this way create the measuring
resistance. Additional covering and passivation layers are applied and reliably protect the thin
platinum layer from contamination and oxidation, even at high temperatures.
The primary advantages of thin film temperature sensors over wire wound versions are their smaller
sizes and better vibration resistance. A relatively low principle-based deviation of the resistance/
temperature characteristic from the standard characteristic of IEC 60751 can frequently be observed
among TF sensors at high temperatures. As a result, the tight limit values of tolerance category A as
per IEC 60751 can only be observed with TF sensors at temperatures up to approx. 300 °C (572 °F).
For this reason, thin-film sensors are generally only used for temperature measurements in ranges
below 400 °C (932 °F).
Omnigrad M TR15, TC15
Thermocouples (TC)
Thermocouples are comparatively simple, robust temperature sensors which use the Seebeck effect
for temperature measurement: if two electrical conductors made of different materials are connected
at a point, a weak electrical voltage can be measured between the two open conductor ends if the
conductors are subjected to a thermal gradient. This voltage is called thermoelectric voltage or
electromotive force (emf.). Its magnitude depends on the type of conducting materials and the
temperature difference between the "measuring point" (the junction of the two conductors) and the
"cold junction" (the open conductor ends). Accordingly, thermocouples primarily only measure
differences in temperature. The absolute temperature at the measuring point can be determined
from these if the associated temperature at the cold junction is known or is measured separately and
compensated for. The material combinations and associated thermoelectric voltage/temperature
characteristics of the most common types of thermocouple are standardized in the IEC 60584 and
ASTM E230/ANSI MC96.1 standards.
2
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Omnigrad M TR15, TC15
A
= 20-250V DC/AC
» 50/60Hz
4...20 mA
24V DC / 30 mA
B
C
°C
Measuring system
A0010494
1 Application example
A Mounted thermometer with head transmitter installed.
B RIA16 field display unit - The display unit records the analog measuring signal from the head transmitter and
shows this on the display. The LC display shows the current measured value in digital form and as a bar graph
indicating a limit value violation. The display unit is looped into the 4 to 20 mA circuit and gets the required
energy from there. More information on this can be found in the Technical Information (see "Documentation").
C Active barrier RN221N - The RN221N (24 V DC, 30 mA) active barrier has a galvanically isolated output for
supplying voltage to loop-powered transmitters. The universal power supply works with an input supply
voltage of 20 to 250 V DC/AC, 50/60 Hz, which means that it can be used in all international power grids.
More information on this can be found in the Technical Information (see "Documentation").
3
Page 4
Equipment architecture
E
1 2
3
5
6
ILIL
L
10 mm
(0.4 in)
U
U1
5
4
6
Omnigrad M TR15, TC15
A0011012
2 Thermometer design
1 Insert with head transmitter mounted (example with 3 mm (0.12 in))
2 Insert with terminal block mounted (example with 6 mm (0.24 in))
3 Terminal head
4 Version without thermowell
5 Thermowell from barstock material
6 Process connection: with or without a flange
E Extension neck length
L Total thermowell length
IL Insertion length
U Length of conical tip
U1 Immersion length; length of the part of the thermowell in contact with the process from the tip to the sealing
surface of the flange
Thermometers from the Omnigrad M TR15 and TC15 series have a modular design. The terminal
head is used as a connection module for the mechanical and electrical connection of the insert. The
position of the actual thermometer sensor in the insert ensures that it is mechanically protected. The
insert can be exchanged and calibrated without interrupting the process. Either ceramic terminal
blocks or transmitters can be fitted to the internal base washer. The thermowell is made from
barstock and is available with diameters measuring 18, 24 or 26 mm (0.71, 0.94 or 1.02 in). The tip
of the thermowell is tapered. The thermometer is installed in the system (pipe or tank) using a
flange connection or by welding the thermometer in place (→ 20).
Measurement range
• RTD: –200 to 600 °C (–328 to 1 112 °F)
• TC: –40 to 1 100 °C (–40 to 2 012 °F)
Performance characteristics
Operating conditions Ambient temperature
Terminal head Temperature in °C (°F)
Without mounted head transmitter Depends on the terminal head used and the cable gland or fieldbus
With mounted head transmitter –40 to 85 °C (–40 to 185 °F)
With mounted head transmitter and
display
connector, see 'Terminal heads' section
–20 to 70 °C (–4 to 158 °F)
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Omnigrad M TR15, TC15
0
5
10
15
20
25
30
35
40
45
100 200 300 400
v (m/s)
A
B
0
4 8 12 16
0
15
30
50
65
80
100
115
130
145
v (ft/s)
U1 (mm)
U1 (in)
50
165
160
0
5
10
15
20
25
30
35
40
45
100 200 300 400
v (m/s)
0
4 8 12 16
0
15
30
50
65
80
100
115
130
145
v (ft/s)
U1 (mm)
U1 (in)
Process pressure (static)
Process connection Standard Max. process pressure
Weld-in version - ≤400 bar (5 800 psi)
Flange
EN1092-1 or ISO
7005-1
ANSI B16.5 150 or 300 psi depending on the flange pressure rating
JIS B 2220 20K, 25K or 40K depending on the flange pressure rating
20, 40, 50 or 100 bar depending on the flange pressure rating
PNxx
Permitted flow velocity depending on the immersion length
The highest flow velocity tolerated by the thermometer diminishes with increasing immersion length
exposed to the stream of the fluid. In addition it is dependent on the diameter of the thermometer
tip, on the kind of measuring medium, on the process temperature and on the process pressure. The
following figures exemplify the maximum permitted flow velocities in water and superheated steam
at a process pressure of 5 MPa (50 bar).
3 Permitted flow velocity depending on the immersion length
A Medium water at T = 50 °C (122 °F)
B Medium superheated steam at T = 400 °C (752 °F)
U1 Immersion length thermowell, material 1.4571 (316Ti)
v Flow velocity
----- Thermowell diameter 18 mm (0.71 in), U = 65 mm (2.56 in)
- - - Thermowell diameter 24 mm (0.94 in), U = 125 mm (4.9 in)
Shock and vibration resistance
• RTD: 3G / 10 to 500 Hz according to IEC 60751
• TC: 4G / 2 to 150 Hz according to IEC 60068-2-6
A0011123
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Omnigrad M TR15, TC15
A
AA
-200 -100 0 100 200 300 400 500 600°C
0.5
1.0
1.5
2.0
B
2.5
3.0
- 0.5
- 1.0
- 1.5
- 2.0
- 2.5
- 3.0
B
A
AA
Max. deviation (°C)
Max. deviation (°C)
Accuracy
RTD resistance thermometer as per IEC 60751
Class Max. tolerances (°C) Characteristics
Cl. AA, former 1/3
± (0.1 + 0.0017 · |t|
1)
)
Cl. B
Cl. A ± (0.15 + 0.002 · |t|
Cl. B ± (0.3 + 0.005 · |t|
1)
)
1)
)
Temperature ranges for compliance with the
tolerance classes
Wire wound
sensor (WW):
Cl. A Cl. AA
–100 to
–50 to +250 °C
+450 °C
Thin-film version
Cl. A Cl. AA
(TF):
• Standard
• iTHERM
StrongSens
®
–30 to +300 °C
–30 to +300 °C
0 to +150 °C
0 to +200 °C
1) |t| = absolute value °C
In order to obtain the maximum tolerances in °F, the results in °C must be multiplied by a factor
of 1.8.
Permissible deviation limits of thermoelectric voltages from the standard characteristic for
thermocouples as per IEC 60584 or ASTM E230/ANSI MC96.1:
Standard Type Standard tolerance Special tolerance
IEC 60584 Class Deviation Class Deviation
1) |t| = absolute value °C
Standard Type Standard tolerance Special tolerance
ASTM E230/ANSI
MC96.1
1) |t| = absolute value °C
J (Fe-CuNi) 2 ±2.5 °C (–40 to 333 °C)
±0.0075 |t|
K (NiCr-NiAl) 2 ±2.5 °C (–40 to 333 °C)
±0.0075 |t|
Deviation, the larger respective value applies
J (Fe-CuNi) ±2.2 K or ±0.0075 |t|
K (NiCr-NiAl) ±2.2 K or ±0.02 |t|
±2.2 K or ±0.0075 |t|
(0 to 1 260 °C)
1)
(333 to 750 °C)
1)
(333 to 1 200 °C)
1)
(–200 to 0 °C)
1 ±1.5 °C (–40 to 375 °C)
±0.004 |t|
1 ±1.5 °C (–40 to 375 °C)
±0.004 |t|
1)
(0 to 760 °C) ±1.1 K or ±0.004 |t|
1)
(375 to 750 °C)
1)
(375 to 1 000 °C)
(0 to 760 °C)
1)
±1.1 K or ±0.004 |t|
(0 to 1 260 °C)
A0008588-EN
1)
1)
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Omnigrad M TR15, TC15
Response time
Calculated at an ambient temperature of approx. 23 °C by immersing in running water (0.4 m/s flow
rate, 10 K excess temperature):
Thermowell, U = length of tapered tip
Thermometer type Outer diameter t
Resistance
thermometer
18 mm (0.71 in)
(measuring probe
Pt100, TF/WW)
24 mm (0.94 in)
Thermowell, U = length of tapered tip
Thermometer
type
Thermocouple
Outer
diameter
18 mm
(0.71 in)
24 mm
(0.94 in)
t
(x)
t
50
t
90
t
50
t
90
(x)
U =
⁶⁵⁄₇₃ mm (².⁵⁶⁄₂.₈₇ in)
U =
¹²⁵⁄₁₃₃ mm
U =
275 mm (10.83 in)
Outer diameter
(tapered tip)
(⁴.⁹²⁄₅.₂₄ in)
t
50
t
90
t
50
t
90
22 s 22 s -
9 mm (0.35 in)
60 s 60 s -
31 s 31 s 31 s
12.5 mm (0.5 in)
96 s 96 s 96 s
Grounded Ungrounded
U =
⁶⁵⁄₇₃ mm
(².⁵⁶⁄₂.₈₇ in)
U =
¹²⁵⁄₁₃₃ mm
(⁴.⁹²⁄₅.₂₄ in)
U =
275 mm
(10.83 in)
U =
⁶⁵⁄₇₃ mm
(².⁵⁶⁄₂.₈₇ in)
U =
¹²⁵⁄₁₃₃ mm
(⁴.⁹²⁄₅.₂₄ in)
U =
275 mm
(10.83 in)
7 s 7 s - 7.5 s 7.5 s -
18 s 18 s - 19 s 19 s -
17 s 15 s 15 s 18 s 16 s 16 s
47 s 43 s 43 s 50 s 46 s 46 s
Insert: Tested in accordance with IEC 60751 in flowing water (0.4 m/s at 30 °C):
Sensor type Diameter ID Response time Thin film (TF)
iTHERM® StrongSens 6 mm (0.24 in) t
3 mm (0.12 in) t
TF Sensor
6 mm (0.24 in) t
3 mm (0.12 in) t
WW Sensor
6 mm (0.24 in) t
3 mm (0.12 in) t
Thermocouple (TPC100)
grounded
6 mm (0.24 in) t
3 mm (0.12 in) t
Thermocouple (TPC100)
ungrounded
6 mm (0.24 in) t
50
t
90
50
t
90
50
t
90
50
t
90
50
t
90
50
t
90
50
t
90
50
t
90
50
t
90
<3.5 s
<10 s
2.5 s
5.5 s
5 s
13 s
2 s
6 s
4 s
12 s
0.8 s
2 s
2 s
5 s
1 s
2.5 s
2.5 s
7 s
Response time for the sensor assembly without transmitter.
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Omnigrad M TR15, TC15
Insulation resistance
Dielectric strength
Self heating
Calibration
• RTD:
Insulation resistance according to IEC 60751 > 100 MΩ at 25 °C between terminals and sheath
material measured with a minimum test voltage of 100 V DC
• TC:
Insulation resistance according to IEC 1515 between terminals and sheath material with a test
voltage of 500 V DC:
– > 1 GΩ at 20 °C
– > 5 MΩ at 500 °C
Tested at a room temperature for 5 s:
• 6 mm (0.24 in): ≥1 000 V DC between terminals and insert sheath
• 3 mm (0.12 in): ≥250 V DC between terminals and insert sheath
RTD elements are passive resistances that are measured using an external current. This
measurement current causes a self-heating effect in the RTD element itself which in turn creates an
additional measurement error. In addition to the measurement current, the size of the measurement
error is also affected by the temperature conductivity and flow velocity of the process. This selfheating error is negligible when an Endress+Hauser iTEMP® temperature transmitter (very small
measurement current) is connected.
Endress+Hauser provides comparison temperature calibration from
–80 to +1 400 °C (–110 to +2 552 °F) based on the International Temperature Scale (ITS90).
Calibrations are traceable to national and international standards. The calibration certificate is
referenced to the serial number of the thermometer. Only the insert is calibrated.
Insert:
⌀6 mm (0.24 in) and 3 mm (0.12 in)
Temperature range without head transmitter with head transmitter
–80 to –40 °C (–110 to –40 °F) 200 (7.87)
–40 to 0 °C (–40 to 32 °F) 160 (6.3)
0 to 250 °C (32 to 480 °F) 120 (4.72) 150 (5.91)
250 to 550 °C (480 to 1 020 °F) 300 (11.81)
550 to 1 400 °C (1 020 to 2 552 °F) 450 (17.72)
Minimum insertion length of insert in mm (in)
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Omnigrad M TR15, TC15
Material
Extension neck and thermowell.
The temperatures for continuous operation specified in the following table are only intended as
reference values for use of the various materials in air and without any significant compressive load.
The maximum operation temperatures are reduced considerably in some cases where abnormal
conditions such as high mechanical load occur or in aggressive media.
Material name Short form Recommended max.
temperature for
continuous use in
air
AISI 316L/
1.4404
1.4435
AISI 316Ti/
1.4571
AISI A105/
1.0460
Duplex
SAF2205/
1.4462
Inconel600/
2.4816
Hastelloy
C276/ 2.4819
X2CrNiMo17-12-2
X2CrNiMo18-14-3
X6CrNiMoTi17-12-2 700 °C (1 292 °F) • Properties comparable to AISI316L
C22.8 450 °C (842 °F) • Heat-resistant steel
X2CrNiMoN22-5-3 300 °C (572 °F) • Austenitic ferritic steel with good
NiCr15Fe 1 100 °C (2 012 °F) • A nickel/chromium alloy with very good
NiMo16Cr15W 1 100 °C (2 012 °F) • A nickel-based alloy with good resistance to
650 °C (1 202 °F)
Properties
1)
• Austenitic, stainless steel
• High corrosion resistance in general
• Particularly high corrosion resistance in
chlorine-based and acidic, non-oxidizing
atmospheres through the addition of
molybdenum (e.g. phosphoric and sulfuric
acids, acetic and tartaric acids with a low
concentration)
• Increased resistance to intergranular
corrosion and pitting
• Compared to 1.4404, 1.4435 has even
higher corrosion resistance and a lower
delta ferrite content
• Addition of titanium means increased
resistance to intergranular corrosion even
after welding
• Broad range of uses in the chemical,
petrochemical and oil industries as well as
in coal chemistry
• Can only be polished to a limited extent,
titanium streaks can form
• Resistant in nitrogen-containing
atmospheres and atmospheres that are low
in oxygen; not suitable for acids or other
aggressive media
• Often used in steam generators, water and
steam pipes, pressure vessels
mechanical properties
• High resistance to general corrosion, pitting,
chlorine-induced or transgranular stress
corrosion
• Comparatively good resistance to
hydrogeninduced stress corrosion
resistance to aggressive, oxidizing and
reducing atmospheres, even at high
temperatures
• Resistant to corrosion caused by chlorine
gas and chlorinated media as well as many
oxidizing mineral and organic acids, sea
water etc.
• Corrosion from ultrapure water
• Not to be used in a sulfur-containing
atmosphere
oxidizing and reducing atmospheres, even at
high temperatures
• Particularly resistant to chlorine gas and
chloride as well as to many oxidizing
mineral and organic acids
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Omnigrad M TR15, TC15
Material name Short form Recommended max.
temperature for
continuous use in
air
AISI A182 F11/
1.7335
Titanium /
3.7035
1.5415 16Mo3 530 °C (986 °F) • Alloyed creep-resistant steel
13CrMo4-5 550 °C (1 022 °F) • Low alloy, heat-resistant steel with
- 600 °C (1 112 °F) • A light metal with very high corrosion
Properties
chromium and molybdenum additions
• Better corrosion resistance compared to
nonalloy steels, not suitable for acids and
other aggressive media
• Often used in steam generators, water and
steam pipes, pressure vessels
resistance and strength values
• Very good resistance to many oxidizing
mineral and organic acids, saline solutions,
sea water etc.
• Prone to fast embrittlement at high
temperatures through the absorption of
oxygen, nitrogen and hydrogen
• Compared to other metals, titanium reacts
readily with many media (O2, N2, Cl2, H2) at
higher temperatures and/or increased
pressure
• Can only be used in chlorine gas and
chlorinated media at comparatively low
temperatures (<400 °C)
• Particularly well suited as pipe material for
boiler construction, super heater tube,
superheated steam and collecting pipe,
stove and line pipes, for heat exchangers
and for the purposes of oil-refining
industries
Family of temperature transmitters
1) Can be used to a limited extent up to 800 °C (1472 °F) for low compressive loads and in non-corrosive
media. Please contact your Endress+Hauser sales team for further information.
Components
Thermometers fitted with iTEMP® transmitters are an installation-ready complete solution to
improve temperature measurement by significantly increasing accuracy and reliability, when
compared to direct wired sensors, as well as reducing both wiring and maintenance costs.
PC programmable head transmitters
They offer a high degree of flexibility, thereby supporting universal application with low inventory
storage. The iTEMP® transmitters can be configured quickly and easily at a PC. Endress+Hauser
offers free configuration software which can be downloaded from the Endress+Hauser Website.
More information can be found in the Technical Information.
HART® programmable head transmitters
The transmitter is a 2-wire device with one or two measuring inputs and one analog output. The
device not only transfers converted signals from resistance thermometers and thermocouples, it also
transfers resistance and voltage signals using HART® communication. It can be installed as an
intrinsically safe apparatus in Zone 1 hazardous areas and is used for instrumentation in the
terminal head (flat face) as per DIN EN 50446. Swift and easy operation, visualization and
maintenance by PC using operating software, Simatic PDM or AMS. For more information, see the
Technical Information.
PROFIBUS® PA head transmitters
Universally programmable head transmitter with PROFIBUS® PA communication. Conversion of
various input signals into digital output signals. High accuracy over the complete ambient
temperature range. Swift and easy operation, visualization and maintenance using a PC directly from
the control panel, e. g. using operating software, Simatic PDM or AMS. For more information, see
the Technical Information.
10
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Omnigrad M TR15, TC15
107.5 (4.23)
68.5 (2.7)
28
(1.1)
78 (3.1)
15.5 (0.6)
107.5 (4.23)
91.6 (3.61)
28
(1.1)
78 (3.1)
15.5 (0.6)
FOUNDATION Fieldbus™ head transmitters
Universally programmable head transmitter with FOUNDATION Fieldbus™ communication.
Conversion of various input signals into digital output signals. High accuracy over the complete
ambient temperature range. Swift and easy operation, visualization and maintenance using a PC
directly from the control panel, e.g. using operating software such as ControlCare from Endress
+Hauser or NI Configurator from National Instruments. For more information, see the Technical
Information.
Advantages of the iTEMP® transmitters:
• Dual or single sensor input (optionally for certain transmitters)
• Unsurpassed reliability, accuracy and long-term stability in critical processes
• Mathematical functions
• Monitoring of the thermometer drift, sensor backup functionality, sensor diagnostic functions
• Sensor-transmitter matching for dual sensor input transmitters, based on Callendar/Van Dusen
coefficients
Terminal heads
All terminal heads have an internal shape and size in accordance with DIN EN 50446 flat face and a
thermometer connection of M24x1.5, G1/2" or 1/2" NPT thread. All dimensions in mm (in). The
cable glands in the diagrams correspond to M20x1.5 connections. Specifications without head
transmitter installed. For ambient temperatures with head transmitter installed, see "Operating
conditions" section.
TA30A Specification
• Available with one or two cable entries
• Protection class: IP66/68 (NEMA Type 4x encl.)
• Temperature: –50 to +150 °C (–58 to +302 °F) without cable
gland
• Material: aluminum, polyester powder coated
Seals: silicone
• Threaded cable entry: G ½", ½" NPT and M20x1.5;
• Protection armature connection: M24x1.5
• Head color: blue, RAL 5012
• Cap color: gray, RAL 7035
• Weight: 330 g (11.64 oz)
• Ground terminal, internal and external
A0009820
• With 3-A® symbol
TA30A with display window Specification
• Available with one or two cable entries
• Protection class: IP66/68 (NEMA Type 4x encl.)
• Temperature: –50 to +150 °C (–58 to +302 °F) without cable
gland
• Material: aluminum, polyester powder coated
Seals: silicone
• Threaded cable entry: G ½", ½" NPT and M20x1.5
• Protection armature connection: M24x1.5
• Head color: blue, RAL 5012
Cap color: gray, RAL 7035
• Weight: 420 g (14.81 oz)
• With TID10 display
• Ground terminal, internal and external
• With 3-A® symbol
A0009821
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TA30D Specification
107.5 (4.23)
110 (4.3)
28
(1.1)
78 (3.1)
15.5 (0.6)
!83 (3.3)
114 (4.5)
11
(0.43)
68 (2.7)
41.5 (1.63)
116 (6.54)
25 (1)
84 (3.3)
73 (2.87)
• Available with one or two cable entries
• Protection class: IP66/68 (NEMA Type 4x encl.)
• Temperature: –50 to +150 °C (–58 to +302 °F) without cable
gland
• Material: aluminum, polyester powder coated
Seals: silicone
• Threaded cable entry: G ½", ½" NPT and M20x1.5
• Protection armature connection: M24x1.5
• Two head transmitters can be mounted. In the standard
version, one transmitter is mounted in the terminal head
cover and an additional terminal block is installed directly
on the insert.
• Head color: blue, RAL 5012
• Cap color: gray, RAL 7035
• Weight: 390 g (13.75 oz)
• Ground terminal, internal and external
A0009822
• With 3-A® symbol
TA30P Specification
• Protection class: IP65
• Max. temperature: –40 to +120 °C (–40 to +248 °F)
• Material: polyamide (PA), antistatic
Seals: silicone
• Threaded cable entry: M20x1.5
• Protection armature connection: M24x1.5
• Head and cap color: black
• Weight: 135 g (4.8 oz)
• Types of protection for use in hazardous locations: Intrinsic
Safety (G Ex ia)
• Ground terminal: only internal via auxiliary clamp
Omnigrad M TR15, TC15
12
A0012930
TA20B Specification
• Protection class: IP65
• Max. temperature: 80 ˚C (176 ˚F)
• Material: polyamide (PA)
• Cable entry: M20x1.5
• Head and cap color: black
• Weight: 80 g (2.82 oz)
• 3-A® marked
A0008663
Page 13
Omnigrad M TR15, TC15
84 (3.3)
95 (3.9)
57 (2.2)
122 (4.8)
28 (1.1)
114 (4.49)
119 (4.7)*
28 (1.1)
89 (3.5)
41 (1.61)
64 (2.52)
79 (3.11)
53 (2.1)
54 (2.13)
81 (3.2)
28 (1.1)
!55 (2.17)
TA21E Specification
• Protection class: IP65
• Max. temperature: 130 °C (266 °F) silicone, 100 °C (212 °F)
rubber seal without cable gland (observe max. permitted
temperature of the cable gland!)
• Material: aluminum alloy with polyester or epoxy coating,
rubber or silicone seal under the cover
• Cable entry: M20x1.5 or plug M12x1 PA
• Protection armature connection: M24x1.5, G 1/2" or NPT
1/2"
• Head color: blue, RAL 5012
• Cap color: gray, RAL 7035
• Weight: 300 g (10.58 oz)
• 3-A® marked
A0008669
TA20J Specification
• Protection class: IP66/IP67
• Max. temperature: 70 °C (158 °F)
• Material: 316L (1.4404) stainless steel, rubber seal under the
cover (hygienic design)
• 4 digits 7-segments LC display (loop powered with
optional4 to 20 mA transmitter)
• Cable entry: 1/2" NPT, M20x1.5 o plug M12x1 PA
• Protection armature connection: M24x1.5 or 1/2" NPT
• Head and cap color: stainless steel, polished
• Weight: 650 g (22.93 oz) with display
• Humidity: 25 to 95 %, no condensation
• 3-A® marked
The programming is executed through 3 keys at the bottom of
the display.
A0008866
* dimensions with optional display
TA20R Specification
• Protection class: IP66/67
• Max. temperature: 100 °C (212 °F)
• Material: SS 316L (1.4404) stainless steel
• Cable entry: 1/2" NPT, M20x1.5 or plug M12x1 PA
• Head and cap color: stainless steel
• Weight: 550 g (19.4 oz)
• LABS-free
• 3-A® marked
A0008667
13
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Omnigrad M TR15, TC15
Maximum ambient temperatures for cable glands and fieldbus connectors
Type Temperature range
Cable gland ½" NPT, M20x1.5 (non Ex) –40 to +100 °C (–40 to +212 °F)
Cable gland M20x1.5 (for dust ignition-proof area) –20 to +95 °C (–4 to +203 °F)
Fieldbus connector (M12x1 PA, 7/8" FF) –40 to +105 °C (–40 to +221 °F)
14
Page 15
Omnigrad M TR15, TC15
L
E
!33 (1.3)
!42 (1.65)
1 2
3
IL
U1
U
!33 (1.3)
!44 (1.73)
10
(0.4)
M24x1.5
!11 (0.43)
M4x1
!33 (1.3)
!42 (1.65)
10 (0.4)
75 (3)
!6
(0.24)
T
1.5 (0.06)
!18/24/26
(0.71/0.94/1.02)
!3.5/6.5
(0.14/0.26)
4 (0.16)
!9/12.5
(0.35/0.5)
!ID
!ID
Design
All dimensions in mm (in).
4 Dimensions of the Omnigrad M TR15 and TC15
1 Insert with terminal block mounted
2 Insert with head transmitter mounted
3 Insert with flying leads
T Thread neck tube connection to thermowell
E Extension neck length
L Total length of thermowell
IL Insertion length = E + L + 10 mm (0.4 in)
U Length of conical tip
U1 Immersion length; length of the part of the thermowell in contact with the process from the tip to the sealing
surface of the flange
ID Insert diameter 3 mm (0.12 in) or 6 mm (0.24 in)
Tolerance h7 for weld-in versions with thermowell diameter 18/24/26 mm (0.71/0.94/1.02
in)
A0011015
15
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Omnigrad M TR15, TC15
Insert
Sensor Standard thin-film iTHERM® StrongSens Wire wound
Sensor design;
connection method
Vibration resistance of
the insert tip
Measuring range;
accuracy class
Diameter 3 mm (¹⁄₈ in), 6 mm (¹⁄₄ in) 6 mm (¹⁄₄ in) 3 mm (¹⁄₈ in), 6 mm (¹⁄₄ in)
Insert type TPR100 iTHERM® TS111 TPR100
TC
Selection in order code A B E F
Sensor design; material 1x K; INCONEL600 2x K; INCONEL600 1x J; 316L 2x J; 316L
Measuring range acc. to:
DIN EN 60584 –40 to 1 200 °C –40 to 750 °C
ANSI MC 96.1 0 to 1 250 °C 0 to 750 °C
TC Standard, accuracy IEC 60584-2; class 1
Insert type TPC100
Diameter 3 mm (0.12 in) or 6 mm (0.24 in), depending on the selected tip shape
1x Pt100, 3- or 4-wire, mineral
(–58 to +752 °F), Class A or AA
Depending on the application different inserts are available for the assembly:
insulated
Up to 3g
–50 to +400 °C
1x Pt100, 3- or 4-wire, mineral
insulated
Enhanced vibration resistance
> 60g
–50 to +500 °C
(–58 to +932 °F), Class A or AA
ASTM E230-03; special
1x Pt100, 3- or 4-wire,
mineral insulated
Up to 3g
–200 to +600 °C (–328 to +1 112 °F), Class A or AA
2x Pt100, 3-wire, mineral
insulated
Weight
1 to 5 kg (2.2 to 11 lbs) for standard options.
16
Page 17
Omnigrad M TR15, TC15
L
D
K
d
b
f
Process connection
Spare parts
Standard connection flange or as weld-in connection.
Flange with standard designation of the dimensions
A0010471
For detailed information on the flange dimensions
refer to the following flange standards:
• ANSI/ASME B16.5
• ISO 7005-1
• EN 1092-1
• JIS B 2220 : 2004
The flange material must be the same as of the stem of
the thermowell. Models in Hastelloy® have flanges in
basic material 316L/1.4404 and a disc in Hastelloy® on
the surface in contact with the process media. The
standard surface finish of the coupling side of flanges
ranges from 3.2 to 6.4 µm (Ra). Other types of flanges
can be supplied on request.
• The thermowell TW15 is available as spare part (→ 25)
• The gasket set M24x1.5, aramid+NBR (material no. 60001329) is available as spare part
• Inserts (→ 25)
– RTD insert TPR100
– iTHERM® StrongSens TS111
– TC insert TPC100
The inserts are made from mineral insulated cable (MgO) with a sheath in AISI316L/1.4404 (RTD)
or Inconel600 (TC).
If spare parts are required, refer to the following equation:
Insertion length IL = E + L + 10 mm (0.4 in)
• Extension neck welded with threaded connection to terminal head. DIN flat face, different
connections to separate thermowell, (order number TN15-...)
• Thermo-conductive paste HS340, 100 g (material no. 60007126)
• Ceramic terminal block 3-wire (42 mm), 5 pieces (material no. 60005544)
• Ceramic terminal block 6-wire (42 mm), 5 pieces (material no. 60005545)
• Ceramic terminal block 4-wire (42 mm), 5 pieces (material no. 60007934)
17
Page 18
Wiring
3
5
6
RTD
3
4
5
6
RTD
1
2
3-wire
4-wire
Power supply
head transmitter and
analog output 4 to 20 mA,
or bus connection
(red) (red)
(red) (red)
(white) (white)
(white)
mA
-
+
+
1
-
2
7
6
5
4
3
1
2
7
6
5
4
3
Sensor input 2
Sensor input 1
RTD - and 3-wire: 4
RTD 3-wire:
Bus connection
and supply voltage
Display connection
red
white
red
red
red
white
white
(black)
(black)
(yellow)
1 x Pt100
1 x Pt100
2 x Pt100
red
red
white
black
4 wires 3 wires 3 wires
white
red
red
black
yellow
red
white
red
white
Omnigrad M TR15, TC15
Wiring diagrams for RTD
Type of sensor connection
Head mounted transmitter TMT18x (single input)
A0016433-EN
Head mounted transmitter TMT8x (dual input)
Terminal block mounted
Wiring diagrams for TC
18
Thermocouple wire colors
As per IEC 60584 As per ASTM E230
• Type J: black (+), white (-)
• Type K: green (+), white (-)
• Type J: white (+), red (-)
• Type K: yellow (+), red (-)
A0008848-EN
A0008591-EN
Page 19
Omnigrad M TR15, TC15
-
+
6
4
1
2
Power supply
head transmitter and
analog output 4...20 mA
or bus connection
-
+
+
1
-
2
7
6
5
4
3
1
2
7
6
5
4
3
Sensor
input 2
Sensor
input 1
Bus connection
and supply voltage
Display connection
TC
TC
1 x TC
2 x TC
-
+
-
+
+
-
Head mounted transmitter TMT18x (single
input)
A0012698-EN
Terminal block mounted
Head mounted transmitter TMT8x (dual input)
A0012699-EN
A0012700
19
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Installation conditions
L
U1
L
1
2
3
4
Omnigrad M TR15, TC15
Orientation
Installation instructions
No restrictions.
A0011013
5 Installation examples
1-2 In pipes with a small cross section the thermowell tip should reach or extend slightly past the center line of
the pipe (=L).
3-4 Angled installation.
The immersion length of the thermometer influences the accuracy. If the immersion length is too
small then errors in the measurement are caused by heat conduction via the process connection and
the container wall. If installing into a pipe then the immersion length should be at least half of the
pipe diameter (see 1 and 2). A further solution could be an angled (tilted) installation (see 3 and 4).
When determining the immersion length all thermometer parameters and the process to be
measured must be taken into account (e.g. flow velocity, process pressure).
• Installation possibilities: Pipes, tanks or other plant components
• Recommended minimum immersion length: 150 mm (5.91 in)
The immersion length should correspond to at least 8 times of the thermowell diameter. Example:
Thermowell diameter 24 mm (0.94 in) x 8 = 192 mm (7.56 in).
• ATEX certification: Always take note of the installation regulations!
20
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Omnigrad M TR15, TC15
∆T in K
20
40
60
80
100
120
50 100 150 200 250 300 mm
250 °C (482 °F)
400 °C (752 °F)
600 °C (1112 °F)
2 4 6 8 10
12 in
Extension neck length
Terminal head heating
Process temperature
Extension neck length
The extension neck is the part between the process connection and the terminal head. It is normally
made of a tube with dimensional and physical characteristics (diameter and material) which are the
same as of the tube in contact with the medium. The connection situated in the upper part of the
neck allows for orientation of the terminal head. As illustrated in the following diagram, the
extension neck length influences the temperature in the terminal head. This temperature must
remain within the limit values defined in the "Operating conditions" section.
A0011769-EN
6 Heating of the terminal head consequent to the process temperature. Temperature in terminal head =
ambient temperature 20 °C (68 °F) + ΔT
21
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Certificates and approvals
Omnigrad M TR15, TC15
CE Mark
Hazardous area approvals
Other standards and guidelines
PED approval
Material certification
The device meets the legal requirements of the EC directives if applicable. Endress+Hauser confirms
that the device has been successfully tested by applying the CE mark.
For further details on the available Ex versions (ATEX, CSA, FM etc.), please contact your nearest
Endress +Hauser sales organization. All relevant data for hazardous areas can be found in separate
Ex documentation.
• EN 60079: ATEX certification for hazardous areas
• IEC 60529: Degree of protection of housing (IP code)
• IEC 61010-1: Protection Measures for Electrical Equipment for Measurement, Control, Regulation
and Laboratory Procedures
• IEC 60751: Industrial platinum resistance thermometers
• IEC 60584 and ASTM E230/ANSI MC96.1: Thermocouples
• DIN 43772: Thermowells
• DIN EN 50446: Terminal heads
• IEC 61326-1: Electromagnetic compatibility (EMC requirements)
The thermometer complies with paragraph 3.3 of the Pressure Equipment Directive 97/23/CE and is
not marked separately.
The material certificate 3.1 (according to EN 10204) can be requested separately. The "short form"
certificate includes a simplified declaration with no enclosures of documents related to the materials
used in the construction of the single sensor and guarantees the traceability of the materials through
the identification number of the thermometer. The data related to the origin of the materials can
subsequently be requested if necessary.
Test on thermowell
Test report and calibration
Thermowell pressure tests are carried out in accordance with the specifications in DIN 43772. With
regard to thermowells with tapered or reduced tips that do not comply with this standard, these are
tested using the pressure of corresponding straight thermowells. Sensors for use in hazardous areas
are also always subjected to a comparative pressure during the tests. Tests according to other
specifications can be carried out on request. The liquid penetration test verifies that there are no
cracks in the welded seams of the thermowell.
The "Factory calibration" is carried out according to an internal procedure in a laboratory of Endress
+Hauser accredited by the European Accreditation Organization (EA) according to ISO/IEC 17025. A
calibration which is performed according to EA guidelines (SIT/Accredia or DKD/DAkks calibration)
may be requested separately. The calibration is performed on the replaceable insert of the
thermometer. In the case of thermometers without a replaceable insert, the entire thermometer from the process connection to the tip of the thermometer - is calibrated.
Ordering information
Detailed ordering information is available from the following sources:
• In the Product Configurator on the Endress+Hauser website: www.endress.com → Select country →
Instruments → Select device → Product page function: Configure this product
• From your Endress+Hauser Sales Center: www.endress.com/worldwide
Product Configurator - the tool for individual product configuration
• Up-to-the-minute configuration data
• Depending on the device: Direct input of measuring point-specific information such as
measuring range or operating language
• Automatic verification of exclusion criteria
• Automatic creation of the order code and its breakdown in PDF or Excel output format
• Ability to order directly in the Endress+Hauser Online Shop
22
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Omnigrad M TR15, TC15
Accessories
Various accessories, which can be ordered with the device or subsequently from Endress+Hauser, are
available for the device. Detailed information on the order code in question is available from your
local Endress+Hauser sales center or on the product page of the Endress+Hauser website:
www.endress.com.
Communication-specific accessories
Configuration kit TXU10 Configuration kit for PC-programmable transmitter with setup software and
interface cable for PC with USB port
Order code: TXU10-xx
Commubox FXA195
HART
Commubox FXA291 Connects Endress+Hauser field devices with a CDI interface (= Endress+Hauser
HART Loop Converter
HMX50
Wireless HART adapter
SWA70
Fieldgate FXA320 Gateway for the remote monitoring of connected 4-20 mA measuring devices via a
For intrinsically safe HART communication with FieldCare via the USB interface.
For details, see "Technical Information" TI00404F
Common Data Interface) and the USB port of a computer or laptop.
For details, see "Technical Information" TI00405C
Is used to evaluate and convert dynamic HART process variables to analog current
signals or limit values.
For details, see "Technical Information" TI00429F and Operating Instructions
BA00371F
Is used for the wireless connection of field devices.
The WirelessHART adapter can be easily integrated into field devices and existing
infrastructures, offers data protection and transmission safety and can be operated
in parallel with other wireless networks with minimum cabling complexity.
For details, see Operating Instructions BA061S
Web browser.
For details, see "Technical Information" TI00025S and Operating Instructions
BA00053S
Service-specific accessories
Fieldgate FXA520 Gateway for the remote diagnostics and remote configuration of connected HART
measuring devices via a Web browser.
For details, see "Technical Information" TI00025S and Operating Instructions
BA00051S
Field Xpert SFX100 Compact, flexible and robust industry handheld terminal for remote configuration
and for obtaining measured values via the HART current output (4-20 mA).
For details, see Operating Instructions BA00060S
Accessories Description
Applicator Software for selecting and sizing Endress+Hauser measuring devices:
• Calculation of all the necessary data for identifying the optimum measuring
device: e.g. pressure loss, accuracy or process connections.
• Graphic illustration of the calculation results
Administration, documentation and access to all project-related data and
parameters over the entire life cycle of a project.
Applicator is available:
• Via the Internet: https://wapps.endress.com/applicator
• On CD-ROM for local PC installation.
23
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Omnigrad M TR15, TC15
Konfigurator
W@M Life cycle management for your plant
FieldCare FDT-based plant asset management tool from Endress+Hauser.
+temperature
Software for selecting and configuring the product depending on the measuring
task, supported by graphics. Includes a comprehensive knowledge database and
calculation tools:
• For temperature competence
• Quick and easy design and sizing of temperature measuring points
• Ideal measuring point design and sizing to suit the processes and needs of a wide
range of industries
The Konfigurator is available:
On request from your Endress+Hauser sales office on a CD-ROM for local PC
installation.
W@M supports you with a wide range of software applications over the entire
process: from planning and procurement, to the installation, commissioning and
operation of the measuring devices. All the relevant device information, such as
the device status, spare parts and device-specific documentation, is available for
every device over the entire life cycle.
The application already contains the data of your Endress+Hauser device. Endress
+Hauser also takes care of maintaining and updating the data records.
W@M is available:
• Via the Internet: www.endress.com/lifecyclemanagement
• On CD-ROM for local PC installation.
It can configure all smart field units in your system and helps you manage them. By
using the status information, it is also a simple but effective way of checking their
status and condition.
For details, see Operating Instructions BA00027S and BA00059S
System components
Accessories Description
Field display unit RIA16 The display unit records the analog measuring signal from the head transmitter
and shows this on the display. The LC display shows the current measured value in
digital form and as a bar graph indicating a limit value violation. The display unit is
looped into the 4 to 20 mA circuit and gets the required energy from there.
For details, see the "Technical Information" document TI00144R/09/en
RN221N Active barrier with power supply for safe separation of 4-20 mA standard signal
circuits. Offers bidirectional HART transmission.
For details, see "Technical Information" TI00073R and Operating Instructions
BA00202R
RNS221 Supply unit for powering two 2-wire measuring devices solely in the non-Ex area.
Bidirectional communication is possible via the HART communication jacks.
For details, see "Technical Information" TI00081R and Brief Operating
Instructions KA00110R
24
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Omnigrad M TR15, TC15
Documentation
Technical Information:
• iTEMP® Temperature head transmitter
– TMT180, PC-programmable, single-channel, Pt100 (TI00088R/09/en)
– PCP TMT181, PC-programmable, single-channel, RTD, TC, Ω, mV (TI00070R/09/en)
– HART® TMT182, single-channel, RTD, TC, Ω, mV (TI078R/09/en)
– HART®TMT82, two-channel, RTD, TC, Ω, mV (TI01010T/09/en)
– PROFIBUS® PA TMT84, two-channel, RTD, TC, Ω, mV (TI00138R/09/en)
– FOUNDATION FieldbusTM TMT85, two-channel, RTD, TC, Ω, mV (TI00134R/09/en)
• Inserts:
– Resistance thermometer insert Omniset TPR100 (TI268t/02/en)
– Thermocouple insert Omniset TPC100 (TI278t/02/en)
– iTHERM® TS111 Insert for installation in thermometers (TI01014T/09/en)
• Thermowell:
Thermowell for temperature sensors Omnigrad M TW15 (TI00265T/02/en)
• Application example:
– RN221N Active barrier, for supplying loop-powered transmitters (TI073R/09/en)
– RIA16 Field display unit, loop-powered (TI00144R/09/en)
Supplementary ATEX documentation:
• Omnigrad TRxx, Omniset TPR100, TET10x, TPC100, TEC10x ATEX II 3GD EEx nA
(XA00044r/09/a3)
• RTD/TC Thermometer Omnigrad TRxx, TCxx, TxCxxx, ATEX II 1GD or II 1/2GD Ex ia IIC T6...T1
(XA00072R/09/a3)
• iTHERM® TS111, TM211 Omnigrad TST310, TSC310 Omniset TPR100, TPC100 IECEx Ex ia IIC
T6…T1 (XA00100R/09/a3)
25
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www.addresses.endress.com
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