Dual Input Temperature Transmitter
with FOUNDATION Fieldbus™ communication
Application
• Temperature transmitter with 2 universal input channels and
FOUNDATION Fieldbus™ protocol for the conversion of
different input signals into digital output signals
• The temperature transmitter stands out due to signal
reliability, long-term stability, high precision and advanced
diagnostics (important in critical processes)
• For the highest level of safety, availability and risk reduction
• Universal input usable for resistance thermometer (RTD),
thermocouple (TC), resistance transmitter (Ω), voltage
transmitter (mV)
• DIN B style transmitter to fit in the smallest terminal heads or
in remote housings in accordance with DIN EN 50446
• Optional installation in field housings even for use in
Ex d areas
• Mounting bracket pipe or wall for the field housing
Your benefits
• Easy and standardized communication via FOUNDATION
Fieldbus™ H1
• Straightforward design of measuring points in Ex-areas
through FISCO/FNICO conformity in accordance with
IEC 600079-27
• Safe operation in hazardous areas thanks to international
approvals such as FM IS, NI; CSA IS, NI; ATEX Ex ia, Ex nA
for intrinsically safe installation in zone 1 and zone 2
• High accuracy through sensor-transmitter matching
• Reliable operation with sensor monitoring and device
hardware fault recognition
• Several mounting versions and sensor connection
combinations
• Rapid no-tools wiring due to optional spring terminal
technology
Page 2
iTEMP TMT85
RTD/TC
1 x RTD/TC /
2 x RTD/TC
RTD/TC
m
n
0 - 10 bar
0 - 10 bar
Visualisation and monitoring
e. g. P View, FieldCare
and diagnostic software
High speed Ethernet
(HSE) 100 Mbit/s
32 devices per segment
Field controller
linking
device
ENDRESS+HAUSER
ENDRESS+HAUSER
linking
device
linking
device
H1
31.25 kbit/s
H1 IEC 61158-2
H1 FISCO
Measuring point with
installed TMT85
Measuring point with
installed TMT85
Function and system design
Measuring principleElectronic recording and conversion of various input signals in industrial temperature measurement.
Measuring system
A0007667
Application examples
m
Two sensors with measuring input (RTD or TC) in remote installation with the following advantages: drift warning,
sensor backup function and temperature-dependent switching
n
Built-in head transmitter - 1 x RTD/TC or 2 x RTD/TC as redundancy
Endress+Hauser is a producer of a wide range of resistance thermometers, thermocouples and
matching thermowells.
In conjunction with these components, the temperature head transmitter forms a complete measuring
point for various applications in the industrial sector.
Device architecture
System integration via FOUNDATION Fieldbus™
2Endress+Hauser
A0007668-EN
Page 3
iTEMP TMT85
The temperature head transmitter is a two-wire device with two measuring inputs. Using
FOUNDATION Fieldbus™, the device transfers converted signals from resistance thermometers and
thermocouples in addition to other resistance and millivolt signals. The device is powered via the
FOUNDATION Fieldbus™ H1 bus and can be installed as an intrinsically safe apparatus in zone 1
hazardous areas. The device is used for instrumentation purposes in the terminal head form B as per
DIN EN 50446. Data transfer takes place via the following function blocks:
• 2 x 3 analog input (AI),
• 1 x standard PID controller (PID) and
• 1 x input selector (ISEL).
Sensor diagnosis functions
Sensor diagnoses such as cable open circuit, short-circuit, cable corrosion, wiring error and device
hardware error are supported. In addition, the work area of the sensor and the ambient temperature
are monitored.
2-channel functions
These functions increase the reliability and availability of the process values:
• Sensor backup switches to the second sensor if the primary sensor fails.
• Drift warning or alarm if the deviation between sensor 1 and sensor 2 is less than or greater than a
predefined limit value.
• Temperature-dependent switching between sensors which have advantages in different ranges.
Input
Measured variableTemperature (temperature linear transmission behavior), resistance and voltage.
Measuring rangeThe transmitter records different measuring ranges depending on the sensor connection and input
signals (see "Type of input").
Type of inputIt is possible to connect two sensors which are independent of each other. The measuring inputs are
not galvanically isolated from each other.
Type of inputDesignationMeasuring range limits
Resistance thermometer
(RTD)
as per IEC 60751
(α = 0.00385)
as per JIS C1604-81
(α = 0.003916)
as per DIN 43760
(α = 0.006180)
as per Edison Copper Winding
No.15 (α = 0.004274)
as per Edison Curve
(α = 0.006720)
as per GOST
(α = 0.003911)
Pt100
Pt200
Pt500
Pt1000
Pt100
Ni100
Ni120
Cu10
Ni120
Pt50
Pt100
-200 to +850 °C (-328 to +1562 °F)
-200 to +850 °C (-328 to +1562 °F)
-200 to +250 °C (-328 to +482 °F)
-200 to +250 °C (-238 to +482 °F)
-200 to +510 °C (-328 to +950 °F)
-60 to +250 °C (-76 to +482 °F)
-60 to +150 °C (-76 to +302 °F)
-100 to +260 °C (-148 to +500 °F)
-70 to +270 °C (-94 to +518 °F)
-200 to +1100 °C (-328 to +2012 °F)
-200 to +850 °C (-328 to +1562 °F)
as per GOST
(α = 0.004280)
Cu50, Cu100
Pt100 (Callendar-Van
Dusen)
Polynomial nickel
Polynomial copper
-200 to +200 °C (-328 to +392 °F)
10 to 400 Ω
10 to 2000 Ω
10 to 400 Ω
10 to 2000 Ω
10 to 400 Ω
10 to 2000 Ω
Endress+Hauser3
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Type of inputDesignationMeasuring range limits
• Connection type: 2-wire, 3-wire or 4-wire connection, sensor current: ≤ 0.3 mA
• For 2-wire circuit, compensation for wire resistance possible (0 to 30 Ω)
• For 3-wire and 4-wire connection, sensor wire resistance up to max. 50 Ω per wire
iTEMP TMT85
Resistance transmitterResistance Ω10 to 400 Ω
Thermocouples (TC)
as per IEC 584, Part 1
as per ASTM E988
as per DIN 43710
as per GOST
R8.8585-2001
Voltage transmitter (mV)Millivolt transmitter
Type A (W5Re-W20Re)
Type B (PtRh30-PtRh6)
Type E (NiCr-CuNi)
Type J (Fe-CuNi)
Type K (NiCr-Ni)
Type N (NiCrSi-NiSi)
Type R (PtRh13-Pt)
Type S (PtRh10-Pt)
Type T (Cu-CuNi)
Type C (W5Re-W26Re)
Type D (W3Re-W25Re)
Type L (Fe-CuNi)
Type U (Cu-CuNi)
Type L (NiCr-CuNi)
• 2-wire connection
• Internal cold junction (Pt100, Class B)
• External cold junction: value adjustable from -40 to +85 °C (-40 to +185 °F)
• Maximum sensor resistance 10 kΩ (if the sensor resistance is greater than 10 kΩ, an error message is output in
accordance with NAMUR NE89)
(mV)
0 to +2500 °C (+32 to +4532 °F)
+40 to +1820 °C (+104 to +3308 °F)
-270 to +1000 °C (-454 to +1832 °F)
-210 to +1200 °C (-346 to +2192 °F)
-270 to +1372 °C (-454 to +2501 °F)
-270 to +1300 °C (-454 to +2372 °F)
-50 to +1768 °C (-58 to +3214 °F)
-50 to +1768 °C (-58 to +3214 °F)
-260 to +400 °C (-436 to +752 °F)
0 to +2315 °C (+32 to +4199 °F)
0 to +2315 °C (+32 to +4199 °F)
-200 to +900 °C (-328 to +1652 °F)
-200 to +600 °C (-328 to +1112 °F)
-200 to +800 °C (-328 to +1472 °F)
10 to 2000 Ω
+500 to +1820 °C (+932 to +3308 °F)
-200 to +800 °C (-328 to +1472 °F)
-20 to 100 mV
Recommended temperature range:
0 to +2500 °C (+32 to 4532 °F)
-150 to +1000 °C (-238 to +1832 °F)
-150 to +1200 °C (-238 to +2192 °F)
-150 to +1200 °C (-238 to +2192 °F)
-150 to +1300 °C (-238 to +2372 °F)
+50 to +1768 °C (+122 to +3214 °F)
+50 to +1768 °C (+122 to +3214 °F)
-150 to +400 °C (-238 to +752 °F)
0 to +2000 °C (+32 to +3632 °F)
0 to +2000 °C (+32 to +3632 °F)
-150 to +900 °C (-238 to +1652 °F)
-150 to +600 °C (-238 to +1112 °F)
When assigning both sensor inputs, the following connection combinations are possible:
Sensor input 1
Sensor
input 2
RTD or resistance
transmitter, 2-wire
RTD or resistance
transmitter, 3-wire
RTD or resistance
transmitter, 4-wire
Thermocouple (TC),
voltage transmitter
RTD or resistance transmitter, 2-wire
ÂÂ-Â
ÂÂ-Â
----
ÂÂÂÂ
RTD or resistance transmitter, 3-wire
RTD or resistance transmitter, 4-wire
Thermocouple
(TC), voltage
transmitter
4Endress+Hauser
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iTEMP TMT85
Output
Output signal• FOUNDATION Fieldbus™ H1, IEC 61158-2
• FDE (Fault Disconnection Electronic) = 0 mA
• Data transmission rate: supported baud rate = 31.25 kBit/s
• Signal coding = Manchester II
•Output data:
Available values via AI blocks: temperature (PV), temp sensor 1 + 2, terminal temperature
• LAS (link active scheduler), LM (link master) function is supported:
Thus, the head transmitter can assume the function of a link active scheduler (LAS) if the current
link master (LM) is no longer available. The device is supplied as a BASIC device. To use the device
as an LAS, this must be defined in the distributed control system and activated by downloading the
configuration to the device.
• In accordance with IEC 60079-27, FISCO/FNICO
Breakdown informationStatus message in accordance with FOUNDATION Fieldbus™ specification.
Linearization/transmission
Temperature linear, resistance linear, voltage linear
behavior
Mains voltage filter50/60 Hz
Galvanic isolationU = 2 kV AC (sensor input to the output)
Switch-on delay8 s
Data of the FOUNDATION
Fieldbus interface
Basic Data
Device Type11CE (hex)
Device Revision02
Node addressDefault: 247
ITK Version6.0.1
ITK-Certification Driver-No.IT085900
Link Master (LAS) capableyes
Link Master / Basic Device selectable
Number VCRs44
Number of Link-Objects in VFD50
yes; Default: Basic Device
Virtual communication references (VCRs)
Permanent entries1
Fully configurable entries43
Link Settings
Slot time8
Min. Inter PDU delay10
Max. response delay * slot time24
Endress+Hauser5
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Blocks
Block descriptionBlock index
Resource Block
Transducer Block Sensor 1
Transducer Block Sensor 2
Transducer Block Display
Transducer Block Adv. Diag.
Function block AI1
Function block AI2
Function block AI3
Function block AI4
Function block AI5
Function block AI6
Function block PID
Function block ISEL
1) The values in brackets are valid if all the AI blocks (AI1-AI6) are instantiated.
Brief description of the blocksResource Block
The Resource Block contains all the data that clearly identify and characterize the device. It is like an
electronic device nameplate. In addition to parameters that are needed to operate the device on the
fieldbus, the Resource Block also makes other information available such as the order code, device ID,
hardware version, firmware version, etc.
Transducer Block "Sensor 1" and "Sensor 2"
The Transducer Blocks of the head transmitter contain all the measurement-related and devicespecific parameters that are relevant for measuring the input variables.
Display Transducer
The parameters of the "Display" Transducer Block allow the configuration of the optional display.
Advanced Diagnostic
All the parameters for automatic monitoring and diagnosis are grouped together in this Transducer
Block.
Analog Input (AI)
In the AI function block, the process variables from the Transducer Blocks are prepared for subsequent
automation functions in the control system (e.g. scaling, limit value processing).
PID
This function block contains input channel processing, proportional integral-differential control (PID)
and analog output channel processing. The following can be implemented: basic controls, feedforward
control, cascade control and cascade control with limiting.
Input Selector (ISEL)
The block for selecting a signal (Input Selector Block - ISEL) allows the user to choose up to four inputs
and generates an output based on the configured action.
Resistance thermometer
(RTD) according to standard
IEC 60751:2008Pt100 (1)
IEC 60751:2008Pt1000 (4)0.08 °C (0.14 °F)
GOST 6651-94Pt100 (9)0.07 °C (0.13 °F)
Thermocouples (TC)
according to standard
IEC 60584-1Typ K (36)
IEC 60584-1Typ S (39)0.97 °C (1.75 °F)
GOST R8.8585-2001Typ L (43)2.18 °C (3.92 °F)
1) Using fieldbus transmitted measured value
0 to +200 °C (32 to +392 °F)
0 to +800 °C (32 to +1472 °F)
Measured error for resistance thermometer (RTD) and resistance transmitters
Measured error (±)Non-repeatability (±)
1)
StandardDesignationMeasuring range
MaximumRelating to measured
IEC 60751:2008
IEC 60751:2008Pt200 (2)≤ 0.30 °C (0.54 °F)0.11 °C (0.2 °F) + 0.018%
IEC 60751:2008Pt500 (3)-200 to +510 °C
IEC 60751:2008
JIS C1604:1984Pt100 (5)-200 to +510 °C
GOST 6651-94Pt50 (8)-185 to +1100 °C
GOST 6651-94Pt100 (9)-200 to +850 °C
DIN 43760 IPTS-68Ni100 (6)
DIN 43760 IPTS-68Ni120 (7)
OIML R84:2003 / GOST
6651-2009
OIML R84:2003 / GOST
6651-2009
OIML R84:2003 / GOST
6651-2009
OIML R84:2003 / GOST
6651-2009
OIML R84:2003 / GOST
6651-94
Pt100 (1)
-200 to +850 °C
(-328 to +1562 °F)
(-328 to +950 °F)
Pt1000 (4)
Cu50 (10)
Cu100 (11)
Ni100 (12)
Ni120 (13)
Cu50 (14)-50 to +200 °C
-200 to +250 °C
(-328 to +482 °F)
(-328 to +950 °F)
(-301 to +2012 °F)
(-328 to +1562 °F)
-60 to 250 °C
(-76 to 482 °F)
-60 to +250 °C
(-76 to +482 °F)
-60 to +180 °C
(-76 to +356 °F)
(-58 to +392 °F)
≤ 0.12 °C (0.21 °F)0.06 °C (0.11 °F) +
≤ 0.16 °C (0.29 °F)0.05 °C (0.09 °F) +
≤ 0.09 °C (0.16 °F)
≤ 0.20 °C (0.36 °F)0.1 °C (0.18 °F) + 0.008%
≤ 0.11 °C (0.2 °F)
≤ 0.05 °C (0.09 °F)
≤ 0.11 °C (0.2 °F)0.09 °C (0.16 °F) +
≤ 0.06 °C (0.11 °F)
≤ 0.05 °C (0.09 °F)≤ 0.03 °C (0.05 °F)
≤ 0.11 °C (0.2 °F)0.1 °C (0.18 °F) + 0.004%
Digital
value
0.006% x (MW - MBA)
x (MW - MBA)
0.015% x (MW - MBA)
0.03 °C (0.05 °F) +
0.013% x (MW - MBA)
0.05 °C (0.09 °F) +
0.006% x (MW - MBA)
x (MW - MBA)
0.05 °C (0.09 °F) +
0.006% x (MW - MBA)
0.006% x (MW - MBA)
0.05 °C (0.09 °F) +
0.003% x (MW - MBA)
x (MW - MBA)
Digital value
0.08 °C (0.14 °F)
0.31 °C (0.56 °F)
1)
≤ 0.05 °C (0.09 °F)
≤ 0.13 °C (0.23 °F)
≤ 0.08 °C (0.14 °F)
≤ 0.05 °C (0.09 °F)
≤ 0.04 °C (0.07 °F)
≤ 0.11 °C (0.2 °F)
≤ 0.05 °C (0.09 °F)
≤ 0.03 °C (0.05 °F)
≤ 0.05 °C (0.09 °F)
≤ 0.04 °C (0.07 °F)
≤ 0.07 °C (0.13 °F)
8Endress+Hauser
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iTEMP TMT85
Resistance transmitters
1) Using fieldbus transmitted measured value
Resistance Ω10 to 400 Ω32 mΩ-15 mΩ
10 to 2000 Ω300 mΩ-
MW = Measured value
MBA = Measuring range start of the respective sensor
Measured error for thermocouples (TC) and voltage transmitters
Thermocouples (TC)
according to standard
IEC 60584-1
IEC 60584-1Type B (31)+500 to +1820 °C
IEC 60584-1 / ASTM
E988-96
ASTM E988-96
IEC 60584-1Type E (34)-150 to +1000 °C
IEC 60584-1Type J (35)
IEC 60584-1Type K (36)
IEC 60584-1Type N (37)-150 to +1300 °C
IEC 60584-1Type R (38)
IEC 60584-1Type S (39)
IEC 60584-1Type T (40)-150 to +400 °C
DIN 43710Type L (41)-150 to +900 °C
DIN 43710Type U (42)-150 to +600 °C
GOST R8.8585-2001Type L (43)-200 to +800 °C
Designation Measuring range
Type A (30)0 to +2500 °C
(+32 to +4532 °F)
(+932 to +3308 °F)
Type C (32)
0 to +2000 °C
(+32 to +3632 °F)
Type D (33)
(-238 to +2192 °F)
-150 to +1200 °C
(-238 to +2192 °F)
(-238 to +2372 °F)
+50 to +1768 °C
(+122 to +3214 °F)
(-238 to +752 °F)
(-238 to +1652 °F)
(-238 to +1112 °F)
(-328 to +1472 °F)
≤ 200 mΩ
Measured error (±)Non-repeatability (±)
1)
Digital
MaximumRelating to measured value
≤ 1.33 °C (2.39 °F)0.8 °C (1.44 °F) + 0.021% x
MW
≤ 1.50 °C (2.7 °F)1.5 °C (2.7 °F) - 0.06% x
(MW - MBA)
≤ 0.66 °C (1.19 °F)0.55 °C (1 °F) + 0.0055% x
MW
≤ 0.75 °C (1.35 °F)0.75 °C (1.44 °F) - 0.008%
x MW
≤ 0.22 °C (0.4 °F)0.22 °C (0.40 °F) - 0.006%
x (MW - MBA)
≤ 0.27 °C (0.48 °F)0.27 °C (0.49 °F) - 0.005%
x (MW - MBA)
≤ 0.35 °C (0.63 °F)0.35 °C (0.63 °F) - 0.005%
x (MW - MBA)
≤ 0.48 °C (0.86 °F)0.48 °C (0.86 °F) - 0.014%
x (MW - MBA)
≤ 1.12 °C (2.0 °F)1.12 °C (2 °F) - 0.03% x
MW
≤ 1.15 °C (2.07 °F)1.15 °C (2.07 °F) - 0.022%
x MW
≤ 0.36 °C (0.47 °F)0.36 °C (0.47 °F) - 0.04% x
(MW - MBA)
≤ 0.29 °C (0.52 °F)0.29 °C (0.52 °F) - 0.009%
x (MW - MBA)
≤ 0.33 °C (0.6 °F)0.33 °C (0.6 °F) - 0.028% x
(MW - MBA)
≤ 2.2 °C (4.0 °F)2.2 °C (4 °F) - 0.015% x
(MW - MBA)
≤ 0.52 °C (0.94 °F)
≤ 0.67 °C (1.21 °F)
≤ 0.33 °C (0.59 °F)
≤ 0.41 °C (0.74 °F)
≤ 0.07 °C (0.13 °F)
≤ 0.08 °C (0.14 °F)
≤ 0.11 °C (0.20 °F)
≤ 0.16 °C (0.29 °F)
≤ 0.76 °C (1.37 °F)
≤ 0.74 °C (1.33 °F)
≤ 0.11 °C (0.20 °F)
≤ 0.07 °C (0.13 °F)
≤ 0.10 °C (0.18 °F)
≤ 0.15 °C (0.27 °F)
Voltage transmitter (mV)-20 to 100 mV10 μV-4μV
1) Using fieldbus transmitted measured value
Sample calculation with Pt100, measuring range 0 to +200 °C (32 to +392 °F), ambient temperature
+25 °C (+77 °F), supply voltage 24 V:
Measured error = 0.06 °C + 0.006% x (200 °C - (-200 °C)):0.084 °C (0.151 °F)
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iTEMP TMT85
Sample calculation with Pt100, measuring range 0 to +200 °C (32 to +392 °F), ambient temperature
+35 °C (+95 °F), supply voltage 30 V:
Measured error = 0.06 °C + 0.006% x (200 °C - (-200 °C)):0.084 °C (0.151 °F)
Influence of ambient temperature = (35 - 25) x (0.002% x 200 °C - (-200 °C)),
min. 0.005 °C
Influence of supply voltage = (30 - 24) x (0.002 % x 200 °C - (-200 °C)),
min. 0.005 °C
0.08 °C (0.144 °F)
0.048 °C (0.086 °F)
Total measured error: √(Measured error² + influence of ambient temperature² +
influence of supply voltage²:
0.126 °C (0.227 °F)
Sensor transmitter matchingRTD sensors are one of the most linear temperature measuring elements. Nevertheless, the output
must be linearized. To improve temperature measurement accuracy significantly, the device enables
the use of two methods:
• Callendar-Van Dusen coefficients (Pt100 resistance thermometer)
The Callendar-Van Dusen equation is described as:
-100
3
The coefficients A, B and C are used to match the sensor (platinum) and transmitter in order to
improve the accuracy of the measuring system. The coefficients for a standard sensor are specified
in IEC 751. If no standard sensor is available or if greater accuracy is required, the coefficients for
each sensor can be determined specifically by means of sensor calibration.
• Linearization for copper/nickel resistance thermometers (RTD)
The polynomial equations for nickel are described as:
-100
3
The equations for copper, subject to temperature, are described as:
T = -50 °C to 200 °C (-58 °F to 392 °F)
T = -180 °C to -50 °C (-292 °F to -58 °F)
These coefficients A, B and C are used for the linearization of nickel or copper resistance
thermometers (RTD). The exact values of the coefficients derive from the calibration data and are
specific to each sensor.
Sensor transmitter matching using one of the above-named methods significantly improves the
temperature measurement accuracy of the entire system. This is due to the fact that to calculate the
temperature measured, the transmitter uses the specific data pertaining to the connected sensor
instead of using the standardized sensor curve data.
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iTEMP TMT85
Operational influencesThe data concerning the various measured errors correspond to a standard deviation of 2 σ (Gaussian
normal distribution)
DesignationStandardAmbient temperature:
effect (
±) when ambient temperature changes by
Supply voltage:
effect (
±) when supply voltage changes by 1 V
1 °C (1.8 °F)
1)
Digital
MaximumRelating to measured value MaximumRelating to measured
Resistance thermometer (RTD)
Pt100 (1)
Pt200 (2)
Pt500 (3)
Pt1000 (4)
Pt100 (5)JIS C1604:19840.002% x (MW - MBA),
Pt50 (8)
Pt100 (9)
Ni100 (6)DIN 43760 IPTS-68
IEC60751:2008
GOST 6651-94
≤ 0.02 °C (0.036 °F)0.002% x (MW - MBA).
min. 0.005 °C (0.009 °F)
≤ 0.026 °C (0.047 °F)-≤ 0.026 °C (0.047 °F)-
≤ 0.014 °C (0.025 °F)0.002% x (MW - MBA),
min. 0.009 °C (0.016 °F)
0.002% x (MW - MBA),
≤ 0.01 °C (0.018 °F)
min. 0.004 °C (0.007 °F)
min. 0.005 °C (0.009 °F)
≤ 0.03 °C (0.054 °F)0.002% x (MW - MBA),
min. 0.01 °C (0.018 °F)
≤ 0.02 °C (0.036 °F)0.002% x (MW - MBA),
min. 0.005 °C (0.009 °F)
-
≤ 0.005 °C (0.009 °F)
Ni120 (7)--
Cu50 (10)
Cu100 (11)0.002% x (MW - MBA),
Ni100 (12)
Ni120 (13)--
Cu50 (14)OIML R84:2003 /
Resistance transmitters (Ω)
10 to 400 Ω
10 to 2000 Ω
OIML R84:2003 /
GOST 6651-2009
GOST 6651-94
-
≤ 0.008 °C (0.014 °F)
min. 0.004 °C (0.007 °F)
≤ 0.004 °C (0.007 °F)
≤ 0.008 °C (0.014 °F)-
≤ 6 mΩ0.0015% x (MW - MBA),
min. 1.5 mΩ
≤ 30 mΩ0.015% x (MW - MBA),
min. 15 mΩ
-
-
1)
Digital
value
≤ 0.12 °C (0.21 °F)0.002% x (MW - MBA).
min. 0.005 °C (0.009 °F)
≤ 0.014 °C (0.025 °F)0.002% x (MW - MBA),
min. 0.009 °C (0.016 °F)
0.002% x (MW - MBA),
≤ 0.01 °C (0.018 °F)
min. 0.004 °C (0.007 °F)
0.002% x (MW - MBA),
min. 0.005 °C (0.009 °F)
≤ 0.03 °C (0.054 °F)0.002% x (MW - MBA),
min. 0.01 °C (0.018 °F)
≤ 0.02 °C (0.036 °F)0.002% x (MW - MBA),
min. 0.005 °C (0.009 °F)
≤ 0.005 °C (0.009 °F)
≤ 0.008 °C (0.014 °F)
0.002% x (MW - MBA),
min. 0.004 °C (0.007 °F)
≤ 0.004 °C (0.007 °F)
≤ 0.008 °C (0.014 °F)
≤ 6 mΩ0.0015% x (MW - MBA),
min. 1.5 mΩ
≤ 30 mΩ0.015% x (MW - MBA),
min. 15 mΩ
-
-
-
-
1) Using fieldbus transmitted measured value
DesignationStandard
Thermocouples (TC)
Type A (30)IEC 60584-1
Type B (31)IEC 60584-1
Type C (32)IEC 60584-1 /
ASTM E988-96
Ambient temperature:
effect (±) when ambient temperature changes by
1 °C (1.8 °F)
1)
Digital
MaximumRelating to measured value MaximumRelating to measured
≤ 0.14 °C (0.25 °F)0.0055% x MW,
min. 0.03 °C (0.05 °F)
≤ 0.06 °C (0.11 °F)-≤ 0.06 °C (0.11 °F)-
≤ 0.09 °C (0.16 °F)0.0045% x MW,
min. 0.03 °C (0.05 °F)
Supply voltage:
±) when supply voltage changes by 1 V
effect (
1)
Digital
value
≤ 0.14 °C (0.25 °F)0.0055% x MW,
min. 0.03 °C (0.005 °F)
≤ 0.09 °C (0.16 °F)0.0045% x MW,
min. 0.03 °C (0.05 °F)
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iTEMP TMT85
Ambient temperature:
DesignationStandard
Type D (33)ASTM E988-96≤ 0.08 °C (0.14 °F)0.004% x MW,
Type E (34)
Type J (35)
Type K (36)
Type N (37)
Type R (38)
Type S (39)
Type T (40)
Type L (41)DIN 43710
Type U (42)DIN 43710
Type L (43)GOST R8.8585-
Voltage transmitter (mV)
-20 to 100 mV-
IEC 60584-1
2001
effect (±) when ambient temperature changes by
1 °C (1.8 °F)
1)
Digital
min. 0.035 °C (0.063 °F)
≤ 0.03 °C (0.05 °F)0.003% x (MW - MBA),
min. 0.016 °C (0.029 °F)
≤ 0.02 °C (0.04 °F)0.0028% x (MW - MBA),
min. 0.02 °C (0.036 °F)
≤ 0.04 °C (0.07 °F)0.003% x (MW - MBA),
min. 0.013 °C (0.023 °F)
≤ 0.04 °C (0.07 °F)0.0028% x (MW - MBA),
min. 0.020 °C (0.036 °F)
≤ 0.06 °C (0.11 °F)0.0035% x MW,
min. 0.047 °C (0.085 °F)
≤ 0.05 °C (0.09 °F)-≤ 0.05 °C (0.09 °F)-
≤ 0.01 °C (0.02 °F)-≤ 0.01 °C (0.02 °F)-
≤ 0.02 °C (0.04 °F)-≤ 0.02 °C (0.04 °F)-
≤ 0.01 °C (0.02 °F)-≤ 0.01 °C (0.02 °F)-
≤ 0.02 °C (0.04 °F)-≤ 0.02 °C (0.04 °F)-
≤ 3 μV-≤ 3 μV-
Supply voltage:
effect (
±) when supply voltage changes by 1 V
1)
Digital
≤ 0.08 °C (0.14 °F)0.004% x MW,
min. 0.035 °C (0.063 °F)
≤ 0.03 °C (0.05 °F)0.003% x (MW - MBA),
min. 0.016 °C (0.029 °F)
≤ 0.02 °C (0.04 °F)0.0028% x (MW - MBA),
min. 0.02 °C (0.036 °F)
≤ 0.04 °C (0.07 °F)0.003% x (MW - MBA),
min. 0.013 °C (0.023 °F)
≤ 0.04 °C (0.07 °F)0.0028% x (MW - MBA),
min. 0.020 °C (0.036 °F)
≤ 0.06 °C (0.11 °F)0.0035% x MW,
min. 0.047 °C (0.085 °F)
1) Using fieldbus transmitted measured value
MW = Measured value
MBA = Measuring range start of the respective sensor
Long term drift resistance thermometer (RTD) and resistance transmitter
DesignationStandard
Pt100 (1)IEC 60584-1≤ 0.03 °C (0.05 °F) + 0.024% x
Pt200 (2)IEC 60584-1≤ 0.17 °C (0.31 °F) + 0.016% x
Pt500 (3)IEC 60584-1 /
ASTM E988-96
Pt1000 (4)ASTM E988-96≤ 0.034 °C (0.06 °F) + 0.02% x
Long term drift (±)
After 1 yearAfter 3 yearsAfter 5 years
measuring span
measuring span
≤ 0.067 °C (0.121 °F) + 0.018% x
measuring span
measuring span
Maximum
≤ 0.042 °C (0.076 °F)+ 0.035% x
measuring span
≤ 0.28 °C (0.5 °F) + 0.022% x
measuring span
≤ 0.111 °C (0.2 °F)+ 0.025% x
measuring span
≤ 0.056 °C (0.1 °F) + 0.029% x
measuring span
≤ 0.051 °C (0.092 °F) + 0.037% x
measuring span
≤ 0.343 °C (0.617 °F) + 0.025% x
measuring span
≤ 0.137 °C (0.246 °F) + 0.028% x
measuring span
≤ 0.069 °C (0.124 °F)+ 0.032% x
measuring span
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iTEMP TMT85
DesignationStandard
Pt100 (5)
Pt50 (8)≤ 0.055 °C (0.01 °F) + 0..023% x
Pt100 (9)≤ 0.03 °C (0.054 °F)+ 0.024% x
Ni100 (6)≤ 0.025 °C (0.045 °F) + 0.016% x
Ni120 (7)≤ 0.02 °C (0,036 °F) + 0.018% x
Cu50 (10)≤ 0.053 °C (0.095 °F) + 0.013% x
Cu100 (11)≤ 0.027 °C (0.049 °F) + 0.019% x
Ni100 (12)DIN 43710≤ 0.026 °C (0.047 °F)+ 0.015% x
Ni120 (13)DIN 43710≤ 0.021 °C (0.038 °F) + 0.017% x
Cu50 (14)GOST R8.8585-
Resistance transmitters (Ω)
10 to 400 Ω-≤ 10 mΩ + 0.022% x measuring
10 to 2000 Ω-≤ 144 mΩ + 0.019% x measuring
IEC 60584-1
2001
Long term drift (±)
After 1 yearAfter 3 yearsAfter 5 years
≤ 0.03 °C (0.054 °F)+ 0.022% x
measuring span
measuring span
measuring span
measuring span
measuring span
measuring span
measuring span
measuring span
measuring span
≤ 0.056 °C (0.1 °F)+ 0.009% x
measuring span
span
span
≤ 0.042 °C (0.076 °F) + 0.032% x
measuring span
≤ 0.089 °C (0.16 °F) + 0.032% x
measuring span
≤ 0.042 °C (0.076 °F) + 0.034% x
measuring span
≤ 0.042 °C (0.076 °F) + 0.02% x
measuring span
≤ 0.032 °C (0.058 °F) + 0.024% x
measuring span
≤ 0.084 °C (0.151 °F) + 0.016% x
measuring span
≤ 0.042 °C (0.076 °F) + 0.026% x
measuring span
≤ 0.04 °C (0.076 °F) + 0.02% x
measuring span
≤ 0.034 °C (0.061 °F) + 0.022% x
measuring span
≤ 0.089 °C (0.16 °F) + 0.011% x
measuring span
≤ 14 mΩ + 0.031% x measuring
span
≤ 238 mΩ + 0.026% x measuring
span
≤ 0.051 °C (0.092 °F) + 0.034% x
measuring span
≤ 0.1 °C (0.18 °F)+ 0.035% x
measuring span
≤ 0.051 °C (0.092 °F) + 0.037% x
measuring span
≤ 0.047 °C (0.085 °F) + 0.021% x
measuring span
≤ 0.036 °C (0.065 °F) + 0.025% x
measuring span
≤ 0.094 °C (0.169 °F) + 0.016% x
measuring span
≤ 0.047 °C (0.085 °F) + 0.027% x
measuring span
≤ 0.046 °C (0.083 °F) + 0.02% x
measuring span
≤ 0.038 °C (0.068 °F) + 0.023% x
measuring span
≤ 0.1 °C (0.18 °F) + 0.011% x
measuring span
≤ 16 mΩ + 0.033% x measuring
span
≤ 294 mΩ + 0.028% x measuring
span
Long term drift thermocouple (TC) and voltage transmitter
DesignationStandard
Type A (30)
Type B (31)≤ 0.5 °C (0.9 °F)≤ 0.75 °C (1.35 °F)≤ 1.0 °C (1.8 °F)
Type C (32)≤ 0.15 °C (0.27 °F) + 0.018% x
Type D (33)≤ 0.21 °C (0.38 °F) + 0.015% x
Type E (34)JIS C1604:1984≤ 0.06 °C (0.11 °F) + 0.018% x
Type J (35)
Type K (36)≤ 0.09 °C (0.162 °F) + 0.017% x
Type N (37)
Type R (38)≤ 0.31 °C (0.558 °F) + 0.011% x
IEC60751:2008
GOST 6651-94
DIN 43760 IPTS-68
Long term drift (±)
After 1 yearAfter 3 yearsAfter 5 years
Maximum
≤ 0.17 °C (0.306 °F) + 0.021% x
measuring span
measuring span
measuring span
measuring span
≤ 0.06 °C (0.11 °F) + 0.019% x
measuring span
(MW + 150 °C (270 °F))
≤ 0.13 °C (0.234 °F) + 0.015% x
(MW + 150 °C (270 °F))
(MW - 50 °C (90 °F))
≤ 0.27 °C (0.486 °F) + 0.03% x
measuring span
≤ 0.24 °C (0.43 °F) + 0.026% x
measuring span
≤ 0.34 °C (0.61 °F)+ 0.02% x
measuring span
≤ 0.09 °C (0.162 °F) + 0.025% x
measuring span
≤ 0.1 °C (0.18 °F) + 0.025% x
measuring span
≤ 0.14 °C (0.252 °F) + 0.023% x
measuring span
≤ 0.2 °C (0.36 °F) + 0.02% x
measuring span
≤ 0.5 °C (0.9 °F) + 0.013% x
measuring span
≤ 0.38 °C (0.683 °F) + 0.035% x
measuring span
≤ 0.34 °C (0.61 °F) + 0.027% x
measuring span
≤ 0.47 °C (0.85 °F)+ 0.02% x
measuring span
≤ 0.13 °C (0.234 °F) + 0.026% x
measuring span
≤ 0.14 °C (0.252 °F) + 0.027% x
measuring span
≤ 0.19 °C (0.342 °F) + 0.024% x
measuring span
≤ 0.28 °C (0.5 °F) + 0.02% x
measuring span
≤ 0.69 °C (1.241 °F) + 0.011% x
measuring span
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iTEMP TMT85
A
B
C
120 mm
(4.72 in)
120 mm
(4.72 in)
DesignationStandard
Type S (39)
Type T (40)≤ 0.09 °C (0.162 °F) + 0.011% x
OIML R84:2003 /
Type L (41)≤ 0.06 °C (0.108 °F) + 0.017% x
Type U (42)≤ 0.09 °C (0.162 °F) + 0.013% x
Type L (43)OIML R84:2003 /
Voltage transmitter (mV)
-20 to 100 mV-≤ 2 μV + 0.022% x measuring
GOST 6651-2009
GOST 6651-94
Influence of reference point
Long term drift (±)
After 1 yearAfter 3 yearsAfter 5 years
≤ 0.31 °C (0.558 °F) + 0.011% x
measuring span
measuring span
measuring span
measuring span
≤ 0.08 °C (0.144 °F) + 0.015% x
measuring span
span
Pt100 DIN EN 60751 Cl. B, internal reference point for thermocouples TC
(cold junction)
Installation conditions
≤ 0.5 °C (0.9 °F) + 0.013% x
measuring span
≤ 0.15 °C (0.27 °F)+ 0.013% x
measuring span
≤ 0.1 °C (0.18 °F)+ 0.022% x
measuring span
≤ 0.14 °C (0.252 °F)+ 0.017% x
measuring span
≤ 0.12 °C (0.216 °F) + 0.02% x
measuring span
≤ 3.5 μV + 0.03% x measuring
span
≤ 0.7 °C (1.259 °F) + 0.011% x
measuring span
≤ 0.2 °C (0.36 °F) + 0.012% x
measuring span
≤ 0.14 °C (0.252 °F) + 0.022% x
measuring span
≤ 0.2 °C (0.360 °F)+ 0.015% x
measuring span
≤ 0.17 °C (0.306 °F) + 0.02% x
measuring span
≤ 4.7 μV + 0,033% x measuring
span
Installation instructions• Mounting location:
A0016762
A: Terminal head as per DIN EN 50446 form B, direct installation onto insert with cable entry (middle hole 7 mm (0.28 in))
B: Separated from process in field housing, wall or pipe mounting
C: With DIN rail clip on mounting rail as per IEC 60715 (TH35)
• Orientation:
No restrictions
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iTEMP TMT85
Environment
Ambient temperature range-40 to +85 °C (-40 to +185 °F), for hazardous areas see Ex documentation (XA, CD).
Storage temperature-40 to +100 °C (-40 to +212 °F)
AltitudeUp to 4000 m (4374.5 yd) above mean sea level in accordance with IEC 61010-1, CSA 1010.1-92
Climate classAs per IEC 60654-1, Class C
Humidity• Condensation as per IEC 60068-2-33 permitted
• Max. rel. humidity: 95% as per IEC 60068-2-30
Degree of protection• IP00 with screw terminals. In the installed state, it depends on the terminal head or field housing
used.
• IP30 with spring terminals
• IP66/67 when installed in field housing TA30A, TA30D or TA30H
Shock and vibration
resistance
Electromagnetic
compatibility (EMC)
Measuring categoryMeasuring category II as per IEC 61010-1. The measuring category is provided for measuring on power
Degree of contaminationPollution degree 2 as per IEC 61010-1.
10 to 2000 Hz for 5g as per IEC 60068-2-6
CE compliance
EMC to all relevant requirements of the IEC/EN 61326- series and NAMUR NE21. For details see
declaration of conformity.
Maximum measured error <1% of measuring range
Interference immunity: as per IEC/EN 61326 series (industrial environment) / NAMUR NE21
Interference emissions: as per IEC 61326-1 Class B
circuits that are directly connected electrically with the low-voltage network.
Endress+Hauser15
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Mechanical construction
24.1 (0.95)
33 (1.3)
44 (1.73)
7 (0.28)
5(0.2)
B
C
A
28.1 (1.11)
107.5 (4.23)
68.5 (2.
7)
28
(1.1)
78 (3.1)
15.5 (0.6)
Design, dimensionsSpecifications in mm (in)
Head transmitter
Model with screw terminals
≥
Pos. A: Spring range L
Pos. B: Fixing elements for detachable measured value display
Pos. C: Interface for contacting measured value display
5 mm (not applicable to US - M4 mounting screws)
iTEMP TMT85
A0007301
A0007672
Model with spring terminals. The same dimensions except for height of housing.
Field housings
All terminal heads have an internal shape and size in accordance with DIN EN 50446, flat face and a
thermometer connection of M24x1.5. Cable glands: M20x1.5
TA30A Specification
• Two cable entries
• Temperature: -50 °C to +150 °C (-58 °F to +302 °F) without
cable gland
• 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)
A0009822
Maximum ambient temperature for cable glands and fieldbus connectors
TypeTemperature range
Cable gland polyamide ½" NPT, M20x1.5 (non-Ex)-40...+100 °C (-40...+212 °F)
Fieldbus connector (M12x1 PA, 7/8" FF)-40...+105 °C (-40...+221 °F)
iTEMP TMT85
Weight• Head transmitter: approx. 40 to 50 g (1.4 to 1.8 oz)
• Field housing: see specifications
MaterialAll materials used are RoHS-compliant.
Head transmitter
• Housing: Polycarbonate (PC), complies with UL94 HB flammability standard (HB: horizontal burning
test)
•Terminals
Screw terminals: Nickel-plated brass and gold-plated contact
Spring terminals: Tin-plated brass, contact spring V2A
• Potting: WEVO PU 403 FP / FL, according to UL94 V0 flammability standard (V0: vertical burning
test)
Field housing: see specifications
Operability
Display and operating
elements
There are no display or operating elements present at the head transmitter.
Optional the plug-on display TID10 can be used in connection with the head transmitter. It will display
information regarding the actual measured value and the measurement point identification. In the
event of a fault in the measurement chain this will be displayed in inverse color showing the channel
ident and diagnostics code. DIP-switches can be found on the rear of the display. This enables the
hardware set-up such as the FOUNDATION Fieldbus
TM
hardware write protection.
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iTEMP TMT85
Pluggable display TID10
If the transmitter is installed in a field housing and used with a display, a housing with glas window
needs to be used.
Remote operationThe configuration of FOUNDATION Fieldbus™ functions and of device-specific parameters is
performed via fieldbus communication. Special configuration systems provided by various
manufacturers are available for this purpose. For further information please contact your local
Endress+Hauser sales center.
A0009818
Certificates and approvals
CE-markThe measuring system meets the legal requirements of the applicable EC guidelines. These are listed
in the corresponding EC Declaration of Conformity together with the standards applied.
Endress+Hauser confirms successful testing of the device by affixing to it the CE mark.
Hazardous area approvalsFor further details on the available Ex versions (ATEX, CSA, FM, etc.), please contact your nearest
Endress+Hauser sales organisation. All relevant data for hazardous areas can be found in separate Ex
documentation. If required, please request copies from us or your Endress+Hauser sales organisation.
ULRecognized component (see www.ul.com/database, search for keyword "E225237")
Other standards and
guidelines
Certification FOUNDATION
Fieldbus™
• IEC 60529:
Degrees of protection through housing (IP code)
• IEC 61158-2:
Fieldbus standard
• IEC 60068-2-27 and IEC 60068-2-6:
Shock and vibration resistance
•NAMUR
International user association of automation technology in process industries
The temperature transmitter is certified and registered by the Fieldbus Foundation. The device thus
meets all the requirements of the specifications following:
• Certified according to FOUNDATION Fieldbus™ specification
• The device meets all the specifications of the FOUNDATION Fieldbus™ H1
• Interoperability Test Kit (ITK), revision status 6.0.1 (device certification no. available on request): the
device can also be operated with certified devices of other manufacturers
• Physical layer conformance test of the FOUNDATION Fieldbus™ (FF-830 FS 2.0)
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iTEMP TMT85
Ordering information
Detailed ordering information is available from the following sources:
• In the Product Configurator on the Endress+Hauser website:
www.endress.com→ Click "Corporate" → Select your country → Click "Products" → Select the product
using the filters and search field → Open product page → The "Configure" button to the right of the
product image opens the Product Configurator.
• 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 data
• Automatic creation of the order code and its breakdown in PDF or Excel output format
• Ability to order directly in the Endress+Hauser Onlineshop
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.
The following accessories are contained in the scope of delivery:
• Multi-language Brief Operating Instructions as hard copy
• Optional mounting material for field housings (pipe or wall mounting)
Device-specific accessories
TypeOrder code
Display TID10 for Endress+Hauser head transmitters iTEMP TMT8x,
pluggable
TID10 service cable for remote operation of the display for service work;
length 40 cm
Field housing TA30x for Endress+Hauser head transmitterTA30x-xx
Adapter for DIN rail mounting, DIN rail clip as per IEC 60715 (TH35)
without securing screws
Standard - DIN mounting set (2 screws + springs, 4 securing disks and 1
display connector cover)
US - M4 mounting screws (2 screws M4 and 1 display connector cover)71044062
Fieldbus connector (FF):
È 7/8"
NPT½"
È 7/8"
M20
Stainless steel wall mounting bracket for field housing TA30x
Stainless steel pipe mounting bracket for field housing TA30x
TID10-xx
71086650
51000856
71044061
71082009
71082008
71123339
71123342
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iTEMP TMT85
Service-specific accessories
AccessoriesDescription
ApplicatorSoftware 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.
W@M
Life cycle management for your plant
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.
System components
FieldCareFDT-based plant asset management tool from Endress+Hauser.
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
AccessoriesDescription
RID14The 8-channel digital indicator displays the measured values, calculated values and
status information of the fieldbus users in a FOUNDATION Fieldbus
the listener mode, the device listens to the set fieldbus addresses and displays their
specific values. Furthermore, values available on the bus can be displayed via function block interconnection.
TM
network. In
For details: see the Technical Information document TI00145R/09/en and
Operating Instructions BA00282R/09/en
TM
RID16The field indicator with 8 channels and FOUNDATION Fieldbus
the measured values, calculated values and status information of the fieldbus users
in a FOUNDATION Fieldbus
set fieldbus addresses and displays their specific values. Furthermore, values available on the bus can be displayed via function block interconnection.
TM
network. In the listener mode, the device listens to the
protocol displays
For details: see the Technical Information document TI00146R/09/en and
Operating Instructions BA00284R/09/en
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iTEMP TMT85
Documentation
• Operating instructions "iTEMP TMT85" (BA00251R/09/en) online and associated Brief Operating
Instructions "iTEMP TMT85" (KA00252R/09) as hard copy
• Operating instructions "Guideline FOUNDATION Fieldbus Function Blocks" (BA00062S/04/en)
• Ex supplementary documentation:
ATEX II 1G Ex ia IIC: XA00069R/09/a3
ATEX II 3G Ex nA II: XA01006T/09/a3
ATEX II 3D Ex tc IIIC: XA01006T/09/a3
ATEX II 2(1)G Ex ia IIC: XA01012T/09/a3
ATEX II 2G Ex d IIC und ATEX II 2D Ex tb IIIC: XA01007T/09/a3