• Optional: stainless steel housing for EEx d application
Your benefits
• Universally programmable with HART
• Illuminated display, rotatable
• Operation, visualisation and maintenance with PC,
• Two-wire technology, analog output 4 to 20 mA
• Undervoltage detection
• Highly accurate in entire operating temperature range
protocol for operating the device on site using
handheld terminal (DXR375) or remotely via the PC
various input signals
e.g. using FieldCare or
ReadWin
®
2000 operating software
®
protocol
®
protocol for
• Sensor monitoring:
Failure conditioning, corrosion detection
to NAMUR NE 89
• Failure conditioning in event of sensor break or sensor
short-circuit, adjustable to NAMUR NE 43
• EMC to NAMUR NE 21, CE
• Approvals:
ATEX (EEx ia, EEx d and dust ignition-proof), FM and
CSA (IS, NI, XP and DIP)
• Galvanic isolation
• Output simulation
• Min./max. process value recorded
TI00107R/09/en
71190515
Page 2
Function and system design
I
O
PMC731:PIC0001
Online
1>GroupSelect
2PV
0.7bar
HELP
TMT142
Commubox
FieldCare,
ReadWin 2000
®
DXR375
HART Communication
®
RN221N
®
Measuring principleElectronic recording, conversion and display of input signals in industrial temperature measurement.
Measuring system
TMT142
Example of an application of the field transmitter
The iTEMP® HART® temperature field transmitter TMT142 is a two-wire transmitter with an analogue output,
an input for resistance thermometers and resistance transmitters in 2-wire, 3-wire or 4-wire connection,
thermocouples and voltage transmitters. The LC display shows the current measured value digitally and as a
bar graph with an indicator for limit value violation. The TMT142 can be operated via the HART
®
protocol
using a handheld terminal (DXR375) or PC (FieldCare or ReadWin® 2000 operating software).
Corrosion detection
Sensor connection line corrosion can corrupt the measured value. For this reason, the device gives you the
opportunity to detect corrosion for thermocouples and resistance thermometers with a 4-wire connection
before measured value corruption takes place.
2Endress+Hauser
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TMT142
Input
Measured variableTemperature (temperature linear transmission behaviour), resistance and voltage
Measuring rangeThe transmitter records different measuring ranges depending on the sensor connection and input signals (see
'Type of input').
Type of input
InputDesignationMeasuring range limits
Resistance thermometer (RTD)
To IEC 60751
(α = 0.00385)
To JIS C1604-81
(α = 0.003916)
To DIN 43760
(α = 0.006180)
To Edison Copper Winding No.15
(α = 0.004274)
To SAMA
(α = 0.003923)
To Edison Curve
(α = 0.006720)
To GOST
(α = 0.003911)
To GOST
(α = 0.004280)
Pt100
Pt200
Pt500
Pt1000
Pt100
Ni100
Ni1000
Cu10
Pt100
Ni120
Pt50
Pt100
Cu50, Cu100
Polynomial RTD
Pt100 (Callendar - van Dusen)
• Type of connection: 2-wire, 3-wire or 4-wire connection
• With 2-wire circuit, compensation of wire resistance possible (0 to 30 Ω)
• With 3-wire and 4-wire connection, sensor wire resistance to max. 50 Ω per
wire
• Sensor current: ≤ 0.3 mA
-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)
-100 to 700 °C (-148 to 1292 °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)
-200 to 850 °C (-328 to 1562 °F)
-200 to 850 °C (-328 to 1562 °F)
Resistance transmitterResistance Ω10 to 400 Ω
10 to 2000 Ω
Thermocouples (TC)
To NIST monograph 175,
IEC 584
to ASTM E988
to DIN 43710
Voltage transmitter (mV)Millivolt transmitter (mV)-20 to 100 mV
1) Increasing inaccuracy for temperatures < 300 °C (< 572 °F)
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)
• Internal cold junction (Pt100)
• External cold junction: configurable value -40 to +85 °C (-40 to +185 °F)
• Max. sensor resistance 10 kΩ (if sensor resistance is greater than 10 kΩ,
error message as per NAMUR NE 89)
1)
+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)
Endress+Hauser3
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Output
Ub
40 V
1261
1011
250
11 V
0
34.25 V16.75 V
Supply voltage (V DC)
Load ( )W
TMT142
Output signal
Analog output4 to 20 mA, 20 to 4 mA (can be inverted)
Signal encodingFSK ± 0.5 mA via current signal
Data transmission rate1200 baud
Galvanic isolationU = 2 kV AC (input/output)
Failure informationFailure information as per NAMUE NE43:
Failure information is created if the measuring information is missing or not valid. A complete list of all the
errors occurring in the measuring system is created.
UnderrangingLinear drop from 4.0 to 3.8 mA
OverrangingLinear increase from 20.0 to 20.5 mA
Load (HART®)
Failure, e.g. sensor breakage; sensor short
circuit
R
b max.
= (U
- 11 V) / 0.023 A (current output)
b max.
≤ 3.6 mA ("low) or ≥ 21.6 mA ("high"), can be selected
The "high" alarm setting can be set between 21.6 mA and 23 mA,
thus providing the flexibility needed to meet the requirements of
various control systems.
Linearisation/transmission
Temperature linear, resistance linear, voltage linear
behaviour
st
Filter1
order digital filter: 0 to 60 s
Current consumption• 3.6 to 23 mA
• Minimum current consumption ≤ 3.5 mA
• Current limit ≤ 23 mA
Protocol-specific data
®
HART
Version5
Write protection
Device description files (DD)Information and files are available free of charge at:
Load (communication resistor)
Switch-on delay4 s (during switch-on operation I
Hardware setting for activating write protection
www.endress.com
www.hartcomm.org
≤ 4 mA)
a
min. 250
Ω
A0010971-EN
4Endress+Hauser
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TMT142
Electrical connection
Power supply
Supply voltageU
= 11 to 40 V (8 to 40 V without display), reverse polarity protection
b
Power must be fed to the device from an 11 to 40 VDC power supply in accordance with NEC Class
02 (low voltage/current) with short-circuit power limit to 8 A/150 VA.
-20 to 100 mVThermocouple type: C, D, E, J, K, L, N
-5 to 30 mVThermocouple type: B, R, S, T, U
Repeatability0.03% of the physical input range (15 Bit)
Resolution A/D conversion: 18 Bit
With the "Advanced Electronics" option:
0.015% of the physical input range (16 Bit)
Influence of supply voltage≤ ±0.005%/V deviation from 24 V, related to the full scale value
Long-term stability≤ 0.1 K (0.18 °F)/year or ≤ 0.05%/year
Data under reference conditions. % relates to the set span. The larger value applies.
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TMT142
Influence of ambient
temperature (temperature
drift)
Total temperature drift = input temperature drift + output temperature drift
Effect on the accuracy when ambient temperature changes by 1 K (1.8 °F)
Input 10 to 400 Ω0.002% of measured value0.001% of measured value
Input 10 to 2000 Ω0.002% of measured value0.001% of measured value
Input -20 to 100 mVtyp. 0.002% of measured value (maximum
Input -5 to 30 mVtyp. 0.002% of measured value (maximum
Output 4 to 20 mAtyp. 0.002% of measured value (maximum
1) Only with the "Advanced Electronics" option
Typical sensitivity of resistance thermometers:
Pt: 0.00385 * R
Example Pt100: 0.00385 x 100 Ω/K = 0.385 Ω/K
Typical sensitivity of thermocouples:
B: 10 μV/K at
1000 °C (1832 °F)
L: 55 μV/K at 500
°C (932 °F)
/KCu: 0.0043 * R
nominal
C: 20 μV/K at
1000 °C (1832 °F)
N: 35 μV/K at 500
°C (932 °F)
value = 1.5 x typ.)
value = 1.5 x typ.)
value = 1.5 x typ.)
D: 20 μV/K at
1000 °C (1832 °F)
R: 12 μV/K at
1000 °C (1832 °F)
/KNi: 0.00617 * R
nominal
E: 75 μV/K at 500 °C
(932 °F)
S: 12 μV/K at 1000
°C (1832 °F)
typ. 0.001% of measured value1 (maximum
value = 1.5 x typ.)
typ. 0.001% of measured value
value = 1.5 x typ.)
typ. 0.001% of span
1.5 x typ.)
J: 55 μV/K at
500 °C (932 °F)
T: 50 μV/K at
100 °C (212 °F)
1
(maximum value =
nominal
1)
1
1
(maximum
/K
K: 40 μV/K at
500 °C (932 °F)
U: 60 μV/K at
500 °C (932 °F)
Example for calculating measured error for ambient temperature drift:
Input temperature drift Δϑ = 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 (IEC 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 cold junctionPt100 DIN IEC 751 Cl. B (internal cold junction with thermocouples TC)
Installation
Installation instructionsMounting location
Direct mounting on the temperature sensor or indirect mounting using mounting bracket
(see 'Accessories').
Endress+Hauser7
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Environment
Ambient temperature limits• Without display: -40 to +85 °C (-40 °F to +185 °F)
• With display: -40 to +70 °C (-40 °F to +158 °F)
For use in hazardous areas, see Ex certificate
The display can react slowly for temperatures < -20 °C (< -4 °F). Readability of the display cannot be
guaranteed at temperatures < -30 °C (-22 °F).
Storage temperature• Without display: -40 to +100 °C (-40 °F to +212 °F)
• With display:-40 to +85 °C (-40 °F to +185 °F)
AltitudeUp to 2000 m (6560 ft) above sea level according to IEC 61010-1, CSA 1010.1-92
Climate classAs per EN 60 654-1, Class C
Degree of protectionIP 67, NEMA 4x
Shock and vibration resistance3g / 2 to 150 Hz as per IEC 60 068-2-6
TMT142
Electromagnetic compatibility
(EMC)
CondensationPermitted
Installation categoryI
Pollution degree2
Interference immunity and interference emission as per EN 61 326-1 (IEC 1326) and NAMUR NE 21
0.08...2 GHz 10 V/m; 1.4...2 GHz 30 V/m to EN 61000-4-3
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TMT142
°C
°F
%
K
10
0
20
30
40
50
60
70
80
90
100
!
Ê
Ë
Ì
Í
Î
Ï
Ð
Mechanical construction
Design, dimensionsDie cast aluminum housing for general purpose or as option stainless steel housing
Dimensions in mm (and inches in brackets)
Display rotatable in 90°-stages
Weight• Approx. 1.6 kg (3.53 lb) (aluminium housing)
• Approx. 4.2 kg (9.26 lb) (stainless steel housing)
Material
TerminalsCables / wires up to max. 2.5 mm
HousingNameplate
Die-cast aluminum housing AlSi10Mg/AlSi12 with powder
coating on polyester basis
LC display of the field transmitter (illuminated, can be rotated in 90 stages)
1: Bar graph display in 0 % stages with indicators for overranging/underranging
2: 'Caution' display
3: Unit display K, °F, °C or %
4: Measured value display (digit height 20.5 mm / 0.81 ")
5: Status and information display
6: 'Communication' display
7: 'Programming disabled' display
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TMT142
Operating elementsNo operating elements are present directly on the display. The device parameters of the field transmitter are
configured using the DXR375 handheld terminal or a PC with Commubox FXA191 and operating software
(e.g. FieldCare or ReadWin
Remote operationConfiguration
See ’Operating elements’
Interface
®
communication via transmitter power supply (e.g. RN221N; see 'Measuring system').
HART
Configurable device parameters (selection)
Sensor type and type of connection, engineering units (°C/°F), measuring ranges, internal/external cold
junction, compensation of wire resistance with 2-wire connection, failure mode, output signal
(4 to 20/20 to 4 mA), digital filter (damping), offset, TAG+descriptor (8+16 characters), output simulation,
customized linearisation, recording of min./max. process value, analog output: channel 1 (C1)
®
2000).
Certificates and approvals
CE markThe device meets the statutory requirements of the EC directives. Endress+Hauser confirms successful testing
of the device by affixing to it the CE mark.
Ex approvalInformation about currently available Ex versions (ATEX, FM, CSA, etc.) can be supplied by your E+H Sales
Centre on request. All explosion protection data are given in a separate documentation which is available upon
request.
ULRecognized component to UL 3111-1
Other standards and
guidelines
CSA GPCSA General Purpose
• IEC 60529:
Degrees of protection through housing (IP code)
• IEC 61010:
Protection measures for electrical equipment for measurement, control, regulation and laboratory
procedures
Active barrier• Active barrier RN221 for non-hazardous areas or as Ex version
AccessoriesDescription
Commubox FXA195 HART
Commubox FXA291
WirelessHART adapter
Fieldgate FXA320
Fieldgate FXA520
• Cable gland NPT 1/2" D4-8.5, IP68
• Cable entry adapter M20x1.5 to NPT 1/2"
• G ½" EEx-d/XP
• NPT ½" Aluminum
Order code: HAW569-A11A for non-hazardous areas
Order code: HAW569-B11A for Ex areas ATEX 2(1)G EEx ia IIC
Order code: RN221-... see "Documentation"
For intrinsically safe HART communication with FieldCare via the USB interface.
For details, see "Technical Information" TI404F/00
Connects Endress+Hauser field devices with a CDI interface (= Endress+Hauser
Common Data Interface) and the USB port of a computer or laptop.
For details, see "Technical Information" TI405C/07
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/04
Gateway for the remote monitoring of connected 4-20 mA measuring devices via a
Web browser.
For details, see "Technical Information" TI025S/04
Gateway for the remote diagnostics and remote configuration of connected HART
measuring devices via a Web browser.
For details, see "Technical Information" TI025S/04
51004949
51006845
51004387
51004489
51004916
51004490
Endress+Hauser11
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TMT142
System components and
Recorders
AccessoryDescription
Graphic Data Manager
Memograph M
Multi channel recorder
Ecograph T
RN221NActive barrier with power supply for safe separation of 4-20 mA standard signal cir-
RNS221Supply unit for powering two 2-wire measuring devices solely in the non-Ex area.
RB223One or two-channel, loop-powered barrier for the safe separation of 4 to 20 mA stan-
RIA14, RIA16Loop powered field indicator for 4 to 20 mA current loops, RIA14 with explosion
RIA15Process display, digital loop powered display for 4 to 20 mA current loops.
The Memograph M graphic data manager provides information on all the relevant
process variables. Measured values are recorded correctly, limit values are monitored
and measuring points analyzed. The data are stored in the 256 MB internal memory
and also on a SD card
or USB stick.
For details, see "Technical Information" TI133R/09
Multi-channel data recording system with LC color grafic display (120 mm / 4.7"
screen size), galvanically isolated universal inputs (U, I, TC, RTD), digital input, transmitter power supply, limit relay, communication interfaces (USB, Ethernet, RS232/
485), internal Flash memory and CompactFlash card.
For details, see "Technical Information" TI115R/09
cuits. Offers bidirectional HART transmission.
For details, see "Technical Information" TI073R/09
Bidirectional communication is possible via the HART communication jacks.
For details, see "Technical Information" TI081R/09
dard signal circuits. Bidirectional communication is possible via the HART communication jacks.
For details, see "Technical Information" TI132R/09
proof enclosure.
For details, see "Technical Informations" TI143R/09 and TI144R/09
For details, see "Technical Information" TI1040K/09
12Endress+Hauser
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TMT142
Documentation
• Field of activities brochure 'Temperature measurement' (FA006T/09/en)