Endress+Hauser iTEMP TMT85 User manual

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TI00134R/09/EN
71209219
Technical Information
iTEMP®TMT85
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
•TheiTEMP
®TMT85 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
•Severalmountingversions and sensor connection
combinations
• Rapid no-tools wiring due to optional spring terminal
technology

TMT85
2Endress+Hauser
Function and system design
Measuring principle Electronic 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
A0007668-EN
System integration via FOUNDATION Fieldbus™
RTD/TC 1 x RTD/TC /
2 x RTD/TC
RTD/TC
mn
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

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Endress+Hauser 3
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 variable Temperature (temperature linear transmission behavior), resistance and voltage.
Measuring range The transmitter records different measuring ranges depending on the sensor connection and input
signals (see "Type of input").
Type of input It is possible to connect two sensors which are independent of each other. The measuring inputs are
not galvanically isolated from each other.
Type of input Designation Measuring range limits Min.
span
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)
as per GOST
(α= 0.004280)
Pt100
Pt200
Pt500
Pt1000
Pt100
Ni100
Ni1000
Cu10
Ni120
Pt50
Pt100
Cu50, Cu100
Pt100 (Callendar-Van
Dusen)
Polynomial nickel
Polynomial copper
-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 +649 °C (-328 to +1200 °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)
-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
10 K
10 K
10 K
10 K
10 K
10 K
10 K
10 Ω
100 Ω
10 Ω
100 Ω
10 Ω
100 Ω

TMT85
4Endress+Hauser
When assigning both sensor inputs, the following connection combinations are possible:
• 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 Ωper wire
Resistance transmitter Resistance Ω10 to 400 Ω
10 to 2000 Ω
10 Ω
100 Ω
Thermocouples (TC)
as per IEC 584, Part 1
as per ASTM E988
as per DIN 43710
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)
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)
Recommended temperature range:
0 to +2000 °C (+32 to +3632 °F)
+100 to +1500 °C (+212 to +2732 °F)
0 to +750 °C (+32 to +1382 °F)
+20 to +700 °C (+68 to +1292 °F)
0 to +1100 °C (+32 to +2012 °F)
0 to +1100 °C (+32 to +2012 °F)
0 to +1400 °C (+32 to +2552 °F)
0 to +1400 °C (+32 to +2552 °F)
-185 to +350 °C (-301 to +662 °F)
0 to +2000 °C (+32 to +3632 °F)
0 to +2000 °C (+32 to +3632 °F)
0 to +750 °C (+32 to +1382 °F)
-185 to +400 °C (-301 to +752 °F)
50 K
50 K
50 K
50 K
50 K
50 K
50 K
50 K
50 K
50 K
50 K
• 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)
Voltage transmitter
(mV)
Millivolt transmitter
(mV)
-20 to 100 mV 5 mV
Type of input Designation Measuring range limits Min.
span
Sensor input 1
RTD or resis-
tance transmit-
ter, 2-wire
RTD or resis-
tance transmit-
ter, 3-wire
RTD or resis-
tance transmit-
ter, 4-wire
Thermocouple
(TC), voltage
transmitter
Sensor
input 2
RTD or resistance
transmitter, 2-wire   -Â
RTD or resistance
transmitter, 3-wire   -Â
RTD or resistance
transmitter, 4-wire ----
Thermocouple (TC),
voltage transmitter    Â

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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 information Status message in accordance with FOUNDATION Fieldbus™ specification.
Linearization/transmission
behavior
Temperature linear, resistance linear, voltage linear
Mains voltage filter 50/60 Hz
Galvanic isolation U = 2 kV AC (sensor input to the output)
Current consumption ≤11 mA
Switch-on delay 8 s
Data of the FOUNDATION
Fieldbus interface
Basic Data
Virtual communication references (VCRs)
Link Settings
Device Type 11CE (hex)
Device Revision 02
Node address Default: 247
ITK Version 6.0.1
ITK-Certification Driver-No. IT085900
Link Master (LAS) capable yes
Link Master / Basic Device selecta-
ble
yes; Default: Basic Device
Number VCRs 44
Number of Link-Objects in VFD 50
Permanent entries 1
Fully configurable entries 43
Slot time 8
Min. Inter PDU delay 10
Max. response delay * slot time 24

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6Endress+Hauser
Blocks
Brief description of the blocks Resource 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 device-
specific 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.
Block description Block index1)
1) The values in brackets are valid if all the AI blocks (AI1-AI6) are instantiated.
Execution time
(macro cycle ≤500 ms)
Block class
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
400
500
600
700
800
900
1000
1100
(1200)
(1300)
(1400)
1200 (1500)
1300 (1600)
-
-
-
-
-
30 ms
30 ms
30 ms
30 ms (not instantiated)
30 ms (not instantiated)
30 ms (not instantiated)
25 ms
20 ms
Extended
Manufacturer-specific
Manufacturer-specific
Manufacturer-specific
Manufacturer-specific
Extended
Extended
Extended
Extended
Extended
Extended
Standard
Standard

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Power supply
Electrical connection
A0007285-EN
Terminal assignment of head transmitter.
Supply voltage U = 9 to 32 V DC, polarity independent (max. voltage Ub= 35 V)
Performance characteristics
Response time 1 s per channel
Reference operating
conditions
• Calibration temperature: + 25 °C ± 5 K (77 °F ± 9 °F)
•Supplyvoltage:24VDC
• 4-wire circuit for resistance adjustment
Resolution Resolution A/D converter = 18 bit
Maximum measured error
-
+
+
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/
service interface
TC, mV
RTD, 4-, 3- and 2-wire:Ω
RTD, 3- and 2-wire:Ω
TC, mV
white
red
red
white
white
red
red
(black)
(yellow)
(black)
The accuracy data are typical values and correspond to a standard deviation of ± 3σ(normal
distribution), i.e. 99.8% of all the measured values achieve the given values or better values.
Designation Performance characteristics
Resistance thermometers (RTD)
Cu100, Pt100, Ni100, Ni120
Pt500
Cu50, Pt50, Pt1000, Ni1000
Cu10, Pt200
0.1 °C (0.18 °F)
0.3 °C (0.54 °F)
0.2 °C (0.36 °F)
1 °C (1.8 °F)
Thermocouples (TC)
Type: K, J, T, E, L, U
Type: N, C, D
Type: S, B, R
typ. 0.25 °C (0.45 °F)
typ. 0.5 °C (0.9 °F)
typ. 1.0 °C (1.8 °F)
Measuring range Performance characteristics
Resistance transmitters (Ω)10 to 400 Ω
10 to 2000 Ω
± 0.04 Ω
± 0.8 Ω
Voltage transmitters (mV) -20 to 100 mV ± 10 μV

TMT85
8Endress+Hauser
Sensor transmitter matching
RTD 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:
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:
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.
Non-repeatability As per EN 61298-2
Long-term stability ≤0.1 °C/year (≤0.18 °F/year) in reference operating conditions
Influence of ambient tempe-
rature (temperature drift)
3
-100
3
-100
Physical input measuring range of sensors Non-repeatability
10 to 400 ΩCu10, Cu50, Cu100, Pt50, Pt100, Ni100,
Ni120
15 mΩ
10 to 2000 ΩPt200, Pt500, Pt1000, Ni1000 100 ppm x measured value
-20 to 100 mV Thermocouples type: C, D, E, J, K, L, N, U 4 μV
-5 to 30 mV Thermocouples type: B, R, S, T 3 μV
Impact on accuracy when ambient temperature changes by 1 K (1.8 °F):
Input 10 to 400 Ω0.001% of the measured value, min. 1 mΩ
Input 10 to 2000 Ω0.001% of the measured value, min. 10 mΩ
Input -20 to 100 mV 0.001% of the measured value, min. 0.2 μV
Input -5 to 30 mV 0.001% of the measured value, min. 0.2 μV

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Example Pt100: 0.00385 x 100 Ω/K = 0.385 Ω/K
Example of calculating the measured error with ambient temperature drift:
• Input temperature drift ϑ= 10 K (18 °F), Pt100, measuring range 0 to 100 °C (32 to 212 °F)
• Maximum process temperature: 100 °C (212 °F)
• Measured resistance value: 138.5 Ω(DIN EN 60751) at maximum process temperature
Typical temperature drift in Ω: (0.001% of 138.5 Ω) * 10 = 0.01385 Ω
Conversion to Kelvin: 0.01385 Ω/ 0.385 Ω/K = 0.04 K (0.054 °F)
Influence of reference point
(cold junction)
Pt100 DIN EN 60751 Cl. B, internal reference point for thermocouples TC
Installation conditions
Installation instructions •Mountinglocation:
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
Typical sensitivity of resistance thermometers
Pt: 0.00385 * Rnom/K Cu: 0.0043 * Rnom/K Ni: 0.00617 * Rnom/K
Typical sensitivity of thermocouples
B: 10 μV/K C: 20 μV/K D: 20 μV/K E: 75 μV/K J: 55 μV/K K: 40 μV/K
L: 55 μV/K N: 35 μV/K R: 12 μV/K S: 12 μV/K T: 50 μV/K U: 60 μV/K
AB
C
120 mm
(4.72 in)
120 mm
(4.72 in)

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10 Endress+Hauser
Environment conditions
Ambient temperature range -40 to +85 °C (-40 to +185 °F), for hazardous areas see Ex documentation (XA, CD) and "Approvals"
section.
Storage temperature -40 to +100 °C (-40 to +212 °F)
Altitude up to 4000 m (4374.5 yd) above mean sea level in accordance with IEC 61010-1, CSA 1010.1-92
Climate class as 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
10 to 2000 Hz for 5g as per IEC 60068-2-6
Electromagnetic
compatibility (EMC)
CE EMC compliance
The device meets all of the requirements mentioned in IEC 61326-1, 2007 and NAMUR NE21:2006.
This recommendation is a consistent determination whether the devices used in laboratories and in
process control systems are immune to interference, thus increasing their functional safety.
Measuring category Measuring category II as per IEC 61010-1. The measuring category is provided for measuring on power
circuits that are directly connected electrically with the low-voltage network.
Degree of contamination Pollution degree 2 as per IEC 61010-1.
ESD (electrostatic discharge) IEC 61000-4-2 6 kV cont., 8 kV air
Electromagnetic fields IEC 61000-4-3 0.08 to 4 GHz 10 V/m
Burst (fast transients) IEC 61000-4-4 1 kV
Surge IEC 61000-4-5 1 kV asym.
Conducted RF IEC 61000-4-6 0.01 to 80 MHz 10 V

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Endress+Hauser 11
Mechanical construction
Design, dimensions Specifications in mm (in)
Head transmitter
A0007301
Model with screw terminals
Pos. A: Spring range L
≥ 5 mm (not applicable to US - M4 mounting screws)
Pos. B: Fixing elements for detachable measured value display
Pos. C: Interface for contacting measured value display
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
24.1 (0.95)
33 (1.3)
44 (1.73)
7 (0.28)
5 (0.2)
B
C
A
28.1 (1.11)
TA30A Specification
A0009820
• Two cable entries
• Temperature: -50 °C to +150 °C (-58 °F to +302 °F) without
cable gland
• Material: aluminum, polyester powder coated
Seals: silicone
• Cable entry incl. glands: ½"NPT and M20x1.5
• Head color: blue RAL 5012
• Cap color: gray RAL 7035
• Weight: 330 g (11.64 oz)
107.5 (4.23)
68.5 (2.7)
28
(1.1) 78 (3.1)
15.5 (0.6)

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12 Endress+Hauser
TA30A with display window in cover Specification
A0009821
• Two cable entries
• Temperature: -50 °C to +150 °C (-58 °F to +302 °F) without
cable gland
• Material: aluminum, polyester powder coated
Seals: silicone
• Cable entry incl. glands: ½"NPT und M20x1.5
• Head color: blue RAL 5012
• Cap color: gray RAL 7035
• Weight: 420 g (14.81 oz)
TA30H Specification
A0009832
• Flameproof (XP) version, explosion-protected, captive screw
cap, with two cable entries
• Temperature: -50 °C to +150 °C (-58 °F to +302 °F) for rub-
ber seal without cable gland (observe max. permitted tem-
perature of the cable gland!)
• Material: aluminum; polyester powder coated
• Cable entry glands: ½"NPT, M20x1.5
• Head color: blue RAL 5012
• Cap color: gray RAL 7035
• Weight: 640 g (22.6 oz)
TA30H with display window in cover Specification
A0009831
• Flameproof (XP) version, explosion-protected, captive screw
cap, with two cable entries
• Temperature: -50 °C to +150 °C (-58 °F to +302 °F) for rubber
seal without cable gland (observe max. permitted tempera-
ture of the cable gland!)
• Material: aluminum; polyester powder coated
• Cable entry glands: ½"NPT, M20x1.5
• Head color: blue RAL 5012
• Cap color: gray RAL 7035
• Weight: 860 g (30.33 oz)
107.5 (4.23)
91.6 (3.61)
28
(1.1)78 (3.1)
15.5 (0.6)
125 (4.92)
89.5 (3.52)
28
(1.1) 78 (3.01)
20.5 (0.8)
125 (4.92)
115 (4.53)
28
(1.1) 78 (3.01)
20.5 (0.8)

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Weight • Head transmitter: approx. 40 to 50 g (1.4 to 1.8 oz)
• Field housing: see specifications
Material All 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
Terminals Choice of screw or spring terminals (see "Design, dimensions" diagram) for sensor and fieldbus wires:
TA30D Specification
A0009822
• Two cable entries
• Temperature: -50 °C to +150 °C (-58 °F to +302 °F) without
cable gland
• Material: aluminum, polyester powder coated
Seals: silicone
• Cable entry incl. glands: ½"NPT, M20x1.5
• Two head transmitters can be mounted. In the standard ver-
sion, 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)
Maximum ambient temperature for cable glands and fieldbus connectors
Type Temperature range
Cable gland polyamide ½" NPT, M20x1.5 (non-Ex) -40...+100 °C (-40...+212 °F)
Cable gland polyamide M20x1.5 (for dust ignition-proof area) -20...+95 °C (-4...+203 °F)
Cable gland brass ½" NPT, M20x1.5 (for dust ignition-proof area) -20...+130 °C (-4...+266 °F)
Fieldbus connector (M12x1 PA, 7/8" FF) -40...+105 °C (-40...+221 °F)
107.5 (4.23)
110 (4.3)
28
(1.1) 78 (3.1)
15.5 (0.6)
Terminals version Wire version Conductor cross-section
Screw terminals (with latches at
the fieldbus terminals for easy
connection of a handheld terminal,
e.g. FieldXpert, FC475)
Rigid or flexible ≤2.5 mm2(14 AWG)
Spring terminals
Stripped length = min. 10 mm
(0.39 in)
Rigid or flexible 0.2 mm2to 1.5 mm2(24...16 AWG)
Flexible with wire-end ferrules
without plastic ferrule
0.25 mm2to 1.5 mm2(24...16 AWG)
Flexible with wire-end ferrules
with plastic ferrule
0.25 mm2to 0.75 mm2(24...18 AWG)
No ferrules have to be used when connecting flexible wires to spring terminals.

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14 Endress+Hauser
Human interface
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 FieldbusTM hardware write protection.
A0009818
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 operation The 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.
Certificates and approvals
CE-Mark The device meets the legal requirements of the EC directives. Endress+Hauser confirms that the device
has been successfully tested by applying the CE mark.
Hazardous area approvals ATEX approval
TMT85 ATEX II 1G Ex ia IIC T6/T5/T4
Power supply (Terminals + and -) Ui≤17.5 V DC
Ii≤500 mA
Ci≤5 nF
Li= negligibly small
or Ui≤24 V DC
Ii≤250 mA
Suitable for connecting to a fieldbus system as per the FISCO/FNICO model
Sensor circuit (Terminals 3 to 7) U0≤7.2 V DC
I0≤25.9 mA
P0≤46.7 mW
Ci= negligibly small
Li= negligibly small
Max. connection data Ex ia IIC
Ex ia IIB
Ex ia IIA
L0= 20 mH
L0= 50 mH
L0= 100 mH
C0= 0.7 μF
C0= 4.6 μF
C0= 6.0 μF

TMT85
Endress+Hauser 15
Application:
• Equipment category: potentially explosive gas and air mixtures (G)
• Category 1 zone 0, 1 or 2
Application (ATEX II 3G Ex nA II T6/T5/T4):
• Equipment category: potentially explosive gas and air mixtures (G)
•Categoryzone2
Application (ATEX II 3D):
• Equipment category: potentially explosive dust and air mixtures (D)
•Categoryzone22
FM approval
Labeling: IS / I / 1 / ABCD / T4, Entity* or FISCO*;
I / 0 / AEx ia IIC / T4 Ta, Entity* or FISCO*
NI / I / 2 / ABCD / T4, NIFW* or FNICO*;
FM XP, NI, DIP I, II, III / 1+2 / A-G
*= Entity, FISCO, NIFW and FNICO parameters in accordance with control drawings (CD)
Application:
• Intrinsic safety
• Non-incendive
Temperature range
T6
T5
T4
Zone 1, 2:
Ta = -40 °C to +55 °C (-40 °F to 130 °F)
Ta = -40 °C to +70 °C (-40 °F to 158 °F)
Ta = -40 °C to +85 °C (-40 °F to 185 °F)
Zone 0:
Ta = -20 °C to +40 °C (-4 °F to 104 °F)
Ta = -20 °C to +50 °C (-4 °F to 122 °F)
Ta = -20 °C to +60 °C (-4 °F to 140 °F)
TMT85 ATEX II 1G Ex ia IIC T6/T5/T4
For zone 0: potentially explosive steam and air mixtures may only occur under following
atmospheric conditions:
• - 20 °C ≤Ta ≤+60 °C (- 4 °F ≤Ta ≤+140 °F)
•0.8bar≤p ≤1.1 bar (11.6 psi ≤p ≤16 psi)
TMT85 ATEX
• II 2G Ex d IIC T6…T4 Gb
• II 2D Ex tb IIIC T85 °C…T105 °C Db
IEC
• Ex d IIC T6…T4 Gb
• Ex tb IIIC T85 °C…T105 °C Db
Power supply (terminals + and -) U ≤35 V DC
Output FOUNDATION Fieldbus™
Current consumption ≤11 mA
Temperature range T6
T5
T4
-40 °C ≤Ta ≤+65 °C
-40 °C ≤Ta ≤+80 °C
-40 °C ≤Ta ≤+85 °C
Maximum suface temperature housing T85°C
T100°C
T105°C
-40 °C ≤Ta ≤+65 °C
-40 °C ≤Ta ≤+80 °C
-40 °C ≤Ta ≤+85 °C
TMT85 ATEX II 3G Ex nA II T6/T5/T4
ATEX II 3D
Power supply (terminals + and -) U ≤35 V DC
Output FOUNDATION Fieldbus™
Current consumption ≤11 mA
Temperature range T6
T5
T4
Ta = -40 °C to + 55 °C (-40 °F to 130 °F)
Ta = -40 °C to + 70 °C (-40 °F to 158 °F)
Ta = -40 °C to + 85 °C (-40 °F to 185 °F)

TMT85
16 Endress+Hauser
For connection data see table on ATEX approval ATEX II 1G
CSA approval (Canadian Standard Association)
Labeling:
Class I, Div. 1, Groups A, B, C, D, Entity* or FISCO*;
Ex ia IIC
Class I, Div.2, Groups A, B, C, D, NIFW* or FNICO*;
Ex nA IIC
CSA XP, NI, DIP I, II, III / 1+2 / A-G
*= Entity, FISCO, NIFW and FNICO parameters in accordance with control drawings (CD)
Application:
• Intrinsic safety
• Non-incendive
For connection data see table on ATEX approval ATEX II 1G
For 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.
UL Recognized component to UL61010-1
Other standards and
guidelines
• IEC 60529:
Degrees of protection through housing (IP code)
• IEC 61158-2:
Fieldbus standard
• IEC 61326-1:2007:
Electromagnetic compatibility (EMC requirements)
• IEC 60068-2-27 and IEC 60068-2-6:
Shock and vibration resistance
•NAMUR
International user association of automation technology in process industries
Certification FOUNDATION
Fieldbus™
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)
Ordering information
Detailed ordering information is available from the following sources:
• In the Product Configurator on the Endress+Hauser website:
www.endress.com ÈSelect country È Instruments ÈSelect device ÈProduct 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

TMT85
Endress+Hauser 17
Accessories
The following accessories are contained in the scope of delivery:
• Multi-language Brief Operating Instructions as hard copy
• Supplementary documentation ATEX:
ATEX Safety instructions (XA), Control Drawings (CD)
• Operating Instructions on CD-ROM
• Mounting material for head transmitter
• Optional mounting material for field housings (pipe or wall mounting)
Optional accessories
Service-specific accessories
Type Order code
Display TID10 for Endress+Hauser head transmitters iTEMP®TMT8x,
pluggable
TID10-xx
TID10 service cable for remote operation of the display for service work;
length 40 cm
71086650
Field housing TA30x for Endress+Hauser head transmitter TA30x-xx
Adapter for DIN rail mounting, DIN rail clip as per IEC 60715 (TH35) 51000856
Standard - DIN mounting set (2 screws + springs, 4 securing disks and 1
display connector cover)
71044061
US - M4 mounting screws (2 screws M4 and 1 display connector cover) 71044062
Fieldbus connector (FF):
•NPT½"
È7/8"
• M20 È7/8"
71082009
71082008
Stainless steel wall mounting bracket for field housing TA30x
Stainless steel pipe mounting bracket for field housing TA30x
71123339
71123342
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 parame-
ters 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.
Konfigurator+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 ins-
tallation.

TMT85
18 Endress+Hauser
System components
W@M Life cycle management for your plant
W@M supports you with a wide range of software applications over the entire pro-
cess: from planning and procurement, to the installation, commissioning and oper-
ation 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.
FieldCare FDT-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
Accessories Description
RID14 The 8-channel digital indicator displays the measured values, calculated values and
status information of the fieldbus users in a FOUNDATION FieldbusTM network. In
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 func-
tion block interconnection.
For details: see the Technical Information document TI145R/09/en and
Operating Instructions BA282R/09/en
RID16 The field indicator with 8 channels and FOUNDATION FieldbusTM protocol displays
the measured values, calculated values and status information of the fieldbus users
in a FOUNDATION FieldbusTM network. In the listener mode, the device listens to the
set fieldbus addresses and displays their specific values. Furthermore, values availa-
ble on the bus can be displayed via function block interconnection.
For details: see the Technical Information document TI146R/09/en and
Operating Instructions BA284R/09/en

TMT85
Endress+Hauser 19
Documentation
• Operating instructions "iTEMP®TMT85" (BA00251R/09/en) on CD-ROM 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: XA069R/09/a3
ATEX II 3G Ex nA II: XA073R/09/a3
ATEX II 3D Ex tD A22: XA074R/09/a3
ATEX II 2(1)G Ex ia IIC: XA01012T/09/a3
ATEX II 2G Ex d IIC and ATEX II 2D Ex tb IIIC: XA01007T/09/a3

TMT85
www.addresses.endress.com