Endress+Hauser iTEMP TMT72 Operating Instructions Manual

Temperature transmitter

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BA01854T/09/EN/06.24-00

71659021

2024-04-27

Valid as of version

01.01 (device version)

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iTEMP TMT72

Temperature transmitter

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Page 1 Products Solutions Services BA01854T/09/EN/06.24-00 71659021 2024-04-27 Valid as of version 01.01 (device version) Operating Instructions iTEMP TMT72 Temperature transmitter...
Page 3: Table Of Contents
TMT72 Table of contents Table of contents About this document ....4 Commissioning ....35 Document function .
Page 4: About This Document
About this document iTEMP TMT72 About this document Document function These Operating Instructions contain all the information required in the various life cycle phases of the device: from product identification, incoming acceptance and storage, to installation, connection, operation and commissioning, through to troubleshooting, maintenance and disposal.
Page 5: Symbols In Graphics
For an overview of the scope of the associated Technical Documentation, refer to the following: • Device Viewer (www.endress.com/deviceviewer): Enter the serial number from the nameplate • Endress+Hauser Operations app: Enter serial number from nameplate or scan matrix code on nameplate. Endress+Hauser...
Page 6: Registered Trademarks
Registered trademarks Bluetooth® The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Endress+Hauser is under license. Other trademarks and trade names are those of their respective owners. HART®...
Page 7: Intended Use
TMT72 Basic safety instructions Intended use The device is a universal and user-configurable temperature transmitter with one sensor input for resistance thermometers (RTD), thermocouples (TC), resistance and voltage transmitters. The head transmitter version of the device is intended for mounting in a terminal head (flat face) as per DIN EN 50446.
Page 8: It Security
(www.endress.com/deviceviewer): all the information about the device and an overview of the Technical Documentation supplied with the device are displayed. • Enter the serial number from the nameplate into the Endress+Hauser Operations App or scan the 2-D matrix code (QR code) on the nameplate with the Endress+Hauser Operations App: all the information about the device and the technical documentation pertaining to the device is displayed.
Page 9: Name And Address Of Manufacturer
‣ Compare the information on the nameplate with the order. 3.2.2 Name and address of manufacturer Name of manufacturer: Endress+Hauser Wetzer GmbH + Co. KG Address of manufacturer: Obere Wank 1, D-87484 Nesselwang or www.endress.com Storage and transport Storage temperature Head transmitter –50 to +100 °C (–58 to +212 °F)
Page 10: Mounting
Mounting iTEMP TMT72 Mounting Mounting requirements 4.1.1 Dimensions The dimensions of the device are provided in the "Technical data" section →  60. 4.1.2 Installation point • Head transmitter: • in the terminal head, flat face, as per DIN EN 50446, direct mounting on insert with cable entry (middle hole 7 mm) •...
Page 11 TMT72 Mounting 4.2.1 Mounting the head transmitter Item A Item B . 7 2 i n ) Item C . 7 2 i n ) A0048481  1 Head transmitter mounting (three versions) Pos. A Mounting in a terminal head (terminal head flat face as per DIN 43729)
Page 12 Mounting iTEMP TMT72 Pos. B Mounting in a field housing Field housing cover Mounting screws with springs Head transmitter Field housing 21 mm (0.83 in) . 7 2 i n ) 6.5 mm (0.25 in) . 5 1 i n ) A0024604 ...
Page 13 TMT72 Mounting Mounting for North America PZ 2 PZ 1 A0008520  3 Head transmitter mounting Thermowell Insert Adapter, coupling Terminal head Head transmitter Mounting screws Thermometer design with thermocouples or RTD sensors and head transmitter: 1. Fit the thermowell (1) on the process pipe or the container wall. Secure the thermowell according to the instructions before the process pressure is applied.
Page 14 Mounting iTEMP TMT72 Mounting the display on the head transmitter A0009852  4 Mounting the display 1. Loosen the screw on the terminal head cover. Flip back the terminal head cover. 2. Remove the cover of the display connection area.
Page 15: Post-Mounting Checks
TMT72 Mounting 2. Slide the bottom of the device over the bottom end of the DIN rail until you can hear the lower DIN rail clip click into place on the DIN rail. 3. Pull gently on the device to check if it is correctly mounted on the DIN rail.
Page 16: Electrical Connection
Electrical connection iTEMP TMT72 Electrical connection CAUTION ‣ Switch off the power supply before installing or connecting the device. Failure to observe this may result in the destruction of parts of the electronics. ‣ Do not occupy the display connection. An incorrect connection can destroy the electronics.
Page 17: Quick Wiring Guide
TMT72 Electrical connection Quick wiring guide A0047635  7 Terminal assignment of head transmitter Sensor input, TC and mV, external reference junction (CJ) Pt100 Sensor input, TC and mV, internal reference junction (CJ) Sensor input, RTD and Ω, 4-, 3- and 2-wire...
Page 18: Connecting The Sensor
Electrical connection iTEMP TMT72 Connecting the sensor Terminal assignment of the sensor connections →  17. 5.3.1 Connecting to push-in terminals A0039468  9 Push-in terminal connection, using the example of a head transmitter Fig. A, solid wire: 1. Strip wire end. Minimum stripping length 10 mm (0.39 in).
Page 19: Special Connection Instructions
TMT72 Electrical connection 2- 1+ 2- 1+ A0039698  10 Connecting the signal cables and power supply Head transmitter installed in field housing Head transmitter installed in terminal head DIN rail transmitter mounted on DIN rail Terminals for HART protocol and power supply...
Page 20: Ensuring The Degree Of Protection
Electrical connection iTEMP TMT72 Ensuring the degree of protection The device meets the requirements for IP67 protection. Compliance with the following points is mandatory following installation in the field or servicing in order to ensure that IP67 protection is maintained: •...
Page 21: Operation Options
TMT72 Operation options Operation options Overview of operation options SmartBlue FieldCare TMT72 RN22/ RN42 HART® Modem A0050065  13 Operation options for the transmitter via HART communication SmartBlue FieldCare TMT71/ Configuration TMT72 RN22/RN42 A0037893  14 Operation options for the transmitter via the CDI interface The transmitter' s optional Bluetooth interface is only active if a display unit is not attached or the CDI interface is not used for device configuration.
Page 22: Display Elements
Operation options iTEMP TMT72 6.1.1 Measured value display and operating elements Option: Display TID10 for head transmitter The display may also be subsequently ordered at any time after purchasing the transmitter, see the ' A ccessories' section in the Operating Instructions for the device.
Page 23: Local Operation
TMT72 Operation options Item no. Function Description "Out of specification" The device is being operated outside its technical specifications (e.g. during startup or cleaning processes). "Maintenance required" Maintenance is required. The measured value remains valid. The display alternates between the measured value and the status message.
Page 24 Operation options iTEMP TMT72 3. Configure the DIP switch on the rear of the display accordingly. In general: switch to ON = function enabled, switch to OFF = function disabled. 4. Fit the display onto the head transmitter in the correct position. The head transmitter accepts the settings within one second.
Page 25: Structure And Function Of The Operating Menu
TMT72 Operation options Structure and function of the operating menu 6.2.1 Structure of the operating menu Guidance Commissioning Diagnostics Actual diagnostics Actual Diagnostics Diagnostic list Actual diagnostics list Event logbook Previous diagnostics n Simulation Diagnostic event simulation Diagnostic settings...
Page 26 Operation options iTEMP TMT72 • Operator The plant operator can only change settings that do not affect the application - and particularly the measuring path - and simple, application-specific functions that are used during operation. The operator is able to read all the parameters, however.
Page 27: Access To The Operating Menu Via The Operating Tool
DeviceCare Range of functions DeviceCare is a free configuration tool for Endress+Hauser devices. It supports devices with the following protocols, provided a suitable device driver (DTM) is installed: HART, PROFIBUS, FOUNDATION Fieldbus, Ethernet/IP, Modbus, CDI, ISS, IPC and PCP. The target group comprises customers without a digital network in plants and workshops as well as Endress+Hauser service technicians.
Page 28 Access is via the HART® protocol, CDI (= Endress+Hauser Common Data Interface). It also supports devices with the following protocols, provided a suitable device driver (DTM) is installed: PROFIBUS, FOUNDATION Fieldbus.
Page 29: User Interface
TMT72 Operation options User interface A0055534 Endress+Hauser...
Page 30: Ams Device Manager
Operation options iTEMP TMT72 A0055536  18 FieldCare user interface with device information Network view Header Extended header Tag name and device name Status signal Measured values with device and measured value status information, simple presentation, e.g. PV, output current, % span, device temperature...
Page 31: Simatic Pdm
• Configuration of the device • Access to measured values, device status and diagnostic information The SmartBlue app is available for free download for Android devices (Google Playstore) and iOS devices (iTunes Apple Shop) : Endress+Hauser SmartBlue A0037924  19...
Page 32 Operation options iTEMP TMT72 Download the SmartBlue app: 1. Install and start the SmartBlue app.  A Live List shows all the devices available. 2. Select the device from the Live List.  The Login dialog box opens. Logging in: 3.
Page 33: System Integration
Endress+Hauser' s FieldCare and DeviceCare operating tools are also available for download (www. endress.com --> Downloads --> Search field: Software --> Application software) or on the data storage medium which you can obtain from your local Endress+Hauser sales organization. Measured variables via HART protocol...
Page 34: Supported Hart Commands
System integration iTEMP TMT72 Supported HART commands The HART protocol enables the transfer of measuring data and device data between the HART master and the field device for configuration and diagnostics purposes. HART masters such as the handheld terminal or PC-based operating programs need device description files (DD = Device Descriptions, DTM) which are used to access all the information in a HART device.
Page 35: Commissioning
TMT72 Commissioning Command No. Description 40, Cmd040 Enter/Exit fixed current mode 42, Cmd042 Perform device reset 44, Cmd044 Write primary variable units 45, Cmd045 Trim loop current zero 46, Cmd046 Trim loop current gain 50, Cmd050 Read dynamic variable assignments...
Page 36: Configuring The Measuring Instrument
Commissioning iTEMP TMT72 Step Indication Current measured value or Current status message  If the switch-on procedure is not successful, the relevant diagnostic event is displayed, depending on the cause. A detailed list of diagnostic events and the corresponding troubleshooting instructions can be found in the "Diagnostics and troubleshooting"...
Page 37 TMT72 Commissioning Extended order code (n) HART short tag HART date code HART descriptor HART message n = placeholder for 1, 2, 3 The second section, "Sensor", takes the user through all the relevant settings for the sensor. The number of parameters displayed depends on the corresponding settings. The following...
Page 38: Protecting Settings From Unauthorized Access
Commissioning iTEMP TMT72 3. Enter the password again in the Confirm new password input box. Once the password has been entered successfully, parameter changes, particularly those that are needed for commissioning, process adaptation/optimization and troubleshooting, can only be implemented in the Maintenance user role and if the password is entered successfully.
Page 39: Diagnostics And Troubleshooting
TMT72 Diagnostics and troubleshooting Diagnostics and troubleshooting General troubleshooting Always start troubleshooting with the checklists below if faults occur after startup or during operation. The checklists take you directly (via various queries) to the cause of the problem and the appropriate remedial measures.
Page 40 Diagnostics and troubleshooting iTEMP TMT72  Local error messages on the display →  41  Faulty connection to the fieldbus host system Error Possible cause Remedial action HART Missing or incorrectly installed Install the communication resistor (250 Ω) communication does communication resistor.
Page 41: Diagnostic Information On Local Display
TMT72 Diagnostics and troubleshooting Error Possible cause Remedial action Device programming is incorrect Change scaling. (scaling). Incorrect thermocouple type (TC) Change the Sensor type device function. configured. Incorrect reference junction set. Set the correct reference junction . Interference via the thermocouple...
Page 42: Diagnostic List
Diagnostics and troubleshooting iTEMP TMT72 Status signals Letter/ Event Meaning symbol category Operating An operating error has occurred. error Service mode The device is in the service mode (e.g. during a simulation). Out of The device is being operated outside its technical specifications (e.g. during specification startup or cleaning processes).
Page 43 TMT72 Diagnostics and troubleshooting Settings Device behavior Configuration examples Diagnostic Status Diagnostic Status signal Current PV,status Display number signal behavior from (output via HART output the factory communication) 3. Manual setting: Warning Alarm Configured Measured value, S047 diagnostic behavior changed...
Page 44: Firmware History
Maintenance and cleaning iTEMP TMT72 Diagnosti Customizable Customizable Status Diagnostic signal Short text Remedial action behavior number from the from the factory factory customizable customizable Current output simulation Deactivate simulation. Warning Diagnostic event simulation Deactivate simulation. Warning active Factory calibration missing 1.
Page 45: Repair
TMT72 Repair A clean, dry cloth can be used to clean the device. Repair 11.1 General notes Due to its design, the device cannot be repaired. 11.2 Spare parts Spare parts currently available for the device can be found online at: http://www.products.endress.com/spareparts_consumables.
Page 46: Device-Specific Accessories
• 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 Endress+Hauser...
Page 47: System Components
Technical Information TI00028S Netilion IIoT ecosystem: Unlock knowledge With the Netilion IIoT ecosystem, Endress+Hauser enables you to optimize plant performance, digitize workflows, share knowledge, and enhance collaboration. Drawing on decades of experience in process automation, Endress+Hauser provides the process industry with an IIoT ecosystem that unlocks valuable insights from data. These insights allow process optimization, leading to increased plant availability, efficiency, and reliability - ultimately resulting in a more profitable plant.
Page 48 Accessories iTEMP TMT72 (4/8/12/16/20), with highly accurate process values from the HART devices directly connected for the purpose of calculation and data logging. The measured process values are clearly presented on the display and logged safely, monitored for limit values and analyzed.
Page 49: Technical Data
TMT72 Technical data Technical data 13.1 Input Measured variable Temperature (temperature-linear transmission behavior), resistance and voltage. Measuring range Resistance thermometer Description α Measuring range limits Min. span (RTD) as per standard Pt100 (1) –200 to +850 °C (–328 to +1 562 °F) Pt200 (2) –200 to +850 °C (–328 to +1 562 °F)
Page 50: Output
Technical data iTEMP TMT72 Thermocouples as Description Measuring range limits Min. span per standard • Internal reference junction (Pt100) • External preset value: configurable value –40 to +85 °C (–40 to +185 °F) • Maximum sensor wire resistance 10 kΩ (If the sensor wire resistance is greater than 10 kΩ, an error message is output in accordance with NAMUR NE89.)
Page 51: Linearization/Transmission Behavior
TMT72 Technical data Linearization/transmission Temperature-linear, resistance-linear, voltage-linear behavior Mains frequency filter 50/60 Hz Filter 1st order digital filter: 0 to 120 s Protocol-specific data Manufacturer ID 17 (0x11) Device type ID 0x11D0 HART specification Device address in multi-drop mode Software setting addresses 0 to 63 Device description files (DTM, DD) Information and files available at: www.endress.com...
Page 52: Performance Characteristics
Technical data iTEMP TMT72 Current consumption • 3.6 to 23 mA • Minimum current consumption 3.5 mA • Current limit ≤ 23 mA Terminals Choice of screw terminals or push-in terminals for sensor and power supply cables: Terminal design Cable design...
Page 53 TMT72 Technical data Standard Description Measuring range Typical measurement error (±) Value at current Thermocouples (TC) as per standard Digital value output Type K (NiCr-Ni) (36) 0.26 °C (0.47 °F) 0.35 °C (0.63 °F) IEC 60584, Part 1 Type R (PtRh13-Pt) (38) 0 to +800 °C (32 to +1 472 °F)
Page 54 Technical data iTEMP TMT72 Measurement error for thermocouples (TC) and voltage transmitters Standard Description Measuring range Measurement error (±) Digital Based on measured value ME = ± (0.57 °C (1.03 °F) + Type A (30) 0 to +2 500 °C (+32 to +4 532 °F) 0.025% * (MV - LRV))
Page 55 TMT72 Technical data Sample calculation with Pt100, measuring range 0 to +200 °C (+32 to +392 °F), ambient temperature +35 °C (+95 °F), supply voltage 30 V: Measurement error digital = 0.05 °C + 0.006% x (200 °C - (-200 °C)): 0.07 °C (0.126 °F)
Page 56: Current Output Adjustment
Technical data iTEMP TMT72 1-point adjustment (offset) Shifts the sensor value Current output adjustment Correction of the 4 or 20 mA current output value. Operating influences The measurement error data corresponds to 2 σ (Gaussian distribution). Influence of ambient temperature and supply voltage on operation for resistance thermometers (RTD) and resistance...
Page 57 TMT72 Technical data Ambient temperature: Supply voltage: Description Standard Influence (±) per 1 °C (1.8 °F) change Influence (±) per V change Digital Digital Type B (31) ≤ 0.04 °C (0.072 °F) ≤ 0.02 °C (0.036 °F) IEC 60584-1 0.0021% * (MV - LRV),...
Page 58 Technical data iTEMP TMT72 Description Standard Long-term drift (±) ≤ 0.0061% * (MV - ≤ 0.007% * (MV - ≤ 0.0093% * (MV - ≤ 0.0102% * (MV - ≤ 0.039% * (MV - LRV) Pt100 (5) LRV) or LRV) or...
Page 59: Ambient Conditions
TMT72 Technical data Description Standard Long-term drift (±) Type U (42) 0.18 °C (0.32 °F) 0.31 °C (0.56 °F) 0.37 °C (0.67 °F) 0.49 °C (0.88 °F) 0.53 °C (0.95 °F) GOST Type L (43) 0.15 °C (0.27 °F) 0.26 °C (0.47 °F)
Page 60: Electromagnetic Compatibility (Emc)
Technical data iTEMP TMT72 Shock and vibration Vibration resistance as per DNVGL-CG-0339:2015 and DIN EN 60068-2-27 resistance • Head transmitter: 2 to 100 Hz at 4g (increased vibration stress) • DIN rail transmitter: 2 to 100 Hz at 0.7 g (general vibration stress) Shock resistance as per KTA 3505 (section 5.8.4 Shock test)
Page 61: Field Housing
TMT72 Technical data A0036304  21 Version with push-in terminals. Dimensions are identical to the version with screw terminals, apart from housing height. DIN rail transmitter/version with power supply source at the bottom 12.5 (0.49) 116 (4.57) A0039296 Height of housing H varies depending on the terminal version: •...
Page 62 Technical data iTEMP TMT72 TA30A Specification • Two cable entries 107.5 (4.23) • Material: aluminum, polyester powder coated Seals: silicone • Degree of protection: • IP66/68 (NEMA Type 4x encl.) • For ATEX: IP66/67 • Cable entry glands: ½" NPT and M20x1.5 •...
Page 63 TMT72 Technical data TA30H with display window in cover Specification • Flameproof (XP) version, explosion-protected, captive screw 125 (4.92) cap, with two cable entries • Degree of protection: IP 66/68, NEMA Type 4x encl. Ex-version: IP 66/67 • Material: •...
Page 64 Technical data iTEMP TMT72 TA30H with three cable entries and Specification display window in cover • Flameproof (XP) version, explosion-protected, captive screw 125 (4.92) cap, with three cable entries (two at the front, one at the bottom), with grounding screw •...
Page 65: Certificates And Approvals
TMT72 Technical data • Housing: polycarbonate (PC) • Terminals: • Screw terminals: nickel-plated brass and gold-plated or tin-plated contacts • Push-in terminals: tin-plated brass, contact springs 1.4310, 301 (AISI) • Potting compound: • Head transmitter: QSIL 553 • DIN rail housing: Silgel612EH Field housing: see specifications 13.7...
Page 66: Documentation
Technical data iTEMP TMT72 Canada and United States English: Français: This device complies with Part 15 of the FCC Rules and Le présent appareil est conforme aux CNR with Industry Canada licenceexempt RSS standard(s). d' i ndustrie Canada applicables aux appareils radio exempts de licence.
Page 67 Technical Documentation supplied with the device are displayed. • Enter the serial number on the nameplate into the Endress+Hauser Operations app or scan the 2-D matrix code (QR code) on the nameplate with the Endress+Hauser Operations app: all data relating to the device and the Technical Documentation pertaining to the device is displayed.
Page 68: Operating Menu And Parameter
→  36 Start Guidance → Create documentation Save / restore Compare These parameters only appear in FDT/DTM-based operating tools, such as Endress+Hauser' s FieldCare and DeviceCare Diagnostics → Actual diagnostics → Actual diagnostics 1 →  72 Operating time →...
Page 69 TMT72 Operating menu and parameter description Diagnostics → Min/max values → Sensor min value →  77 Sensor max value →  77 Reset sensor min/max values →  77 Device temperature min. →  78 Device temperature max.
Page 70 Operating menu and parameter description iTEMP TMT72 System → Device management → HART short tag →  88 Device tag →  89 Mains filter →  89 Locking status →  89 Device reset →  89 Configuration counter →...
Page 71 TMT72 Operating menu and parameter description Location description →  98 Process unit TAG →  98 System → Information → HART info → Device type →  99 Device revision →  99 HART revision →  99 HART descriptor →...
Page 72: Menu: Diagnostics
Operating menu and parameter description iTEMP TMT72 14.1 Menu: Diagnostics 14.1.1 Submenu: Actual diagnostics Actual diagnostics 1 Navigation Diagnostics → Actual diagnostics → Actual diagnostics 1 Description Displays the current diagnostic message. If two or more messages occur simultaneously, the message with the highest priority is shown on the display.
Page 73: Time Stamp N
TMT72 Operating menu and parameter description User interface • Device • Sensor • Device temperature • Current output • Sensor RJ Time stamp n Navigation Diagnostics → Actual diagnostics → Time stamp n Description Displays the time stamp of the current diagnostic message in relation to the operating time.
Page 74: "Simulation" Submenu
Operating menu and parameter description iTEMP TMT72 Time stamp n Navigation Diagnostics → Event logbook → Time stamp n Description Displays the time stamp of the current diagnostic message in relation to the operating time. User interface Hours (h) 14.1.4 "Simulation"...
Page 75: Sensor Simulation
TMT72 Operating menu and parameter description Description Use this function to set a current value for the simulation. In this way, users can verify the correct adjustment of the current output and the correct function of downstream switching units.
Page 76: Limit Corrosion Detection
Operating menu and parameter description iTEMP TMT72 Factory setting Limit corrosion detection Navigation Diagnostics → Diagnostic settings → Properties → Limit corrosion detection Prerequisite A 4-wire RTD or TC must be selected as the sensor type or connection type. →  80 Description Use this function to enter the limit value for corrosion detection.
Page 77: Status Signal
TMT72 Operating menu and parameter description Navigation Diagnostics → Diagnostic settings → Diagnostic behavior Description Each diagnostic event is assigned a certain diagnostic behavior. The user can change this assignment for certain diagnostic events. →  42 Selection • Alarm •...
Page 78: Menu: Application
Operating menu and parameter description iTEMP TMT72 Navigation Diagnostics → Min/max values → Reset sensor min/max values Description Resets the min/max values of the sensor to their default values. User entry Clicking the Reset sensor min/max values button activates the reset function. As a result of this action, the min/max values of the sensor only display the reset, temporary values.
Page 79 TMT72 Operating menu and parameter description Sensor raw value Navigation Application → Measured values → Sensor raw value Description Displays the non-linearized mV/Ohm value at the specific sensor input. Output current Navigation Application → Measured values → Output current Description Displays the calculated output current in mA.
Page 80: Submenu: Sensor
Operating menu and parameter description iTEMP TMT72 Navigation Application → Measured values → TV Description Displays the tertiary device variable. Navigation Application → Measured values → QV Description Displays the quaternary (fourth) device variable. 14.2.2 Submenu: Sensor Unit Navigation Application → Sensor → Unit Description Use this function to select the engineering unit for all the measured values.
Page 81 TMT72 Operating menu and parameter description Selection A list of all the possible sensor types is provided in the ' T echnical data' section. →  49 Factory setting Pt100 IEC751 Connection type Navigation Application → Sensor → Connection type Prerequisite An RTD sensor or a resistance transmitter must be specified as the sensor type.
Page 82 Operating menu and parameter description iTEMP TMT72 Factory setting Internal measurement RJ preset value Navigation Application → Sensor → RJ preset value Prerequisite The Preset value parameter must be set if the Reference junction option is selected. Description Use this function to define the fixed preset value for temperature compensation.
Page 83 TMT72 Operating menu and parameter description Navigation Application → Sensor → Linearization → Call./v. Dusen coeff. A, B and C Prerequisite The RTD platinum (Callendar/Van Dusen) option is enabled in the Sensor type parameter. Description Use this function to set the coefficients for sensor linearization based on the Callendar/Van Dusen method.
Page 84 Operating menu and parameter description iTEMP TMT72 Navigation Application → Sensor → Linearization → Sensor lower limit Prerequisite The RTD platinum, RTD poly nickel or RTD copper polynomial option is enabled in the Sensor type parameter. Description Use this function to set the lower calculation limit for special sensor linearization.
Page 85 TMT72 Operating menu and parameter description Failure mode Navigation Application → Current output → Failure mode Description Use this function to select the signal on alarm level of the current output in the event of an error. Selection • High alarm •...
Page 86 Operating menu and parameter description iTEMP TMT72 ↓ 8. Deactivate simulation ↓ 9. End Current trimming 4 mA Navigation Application → Current output → Current trimming 4 mA Description Use this function to set the correction value for the current output at the start of the measuring range at 4 mA.
Page 87 TMT72 Operating menu and parameter description Additional information The current output responds to fluctuations in the measured value with an exponential delay. The time constant of this delay is defined by this parameter. If a low time constant is entered, the current output responds quickly to the measured value.
Page 88: Menu: System
Operating menu and parameter description iTEMP TMT72 Description Use this function to assign the measured variable to the quaternary (fourth) HART value (QV). User interface Sensor (fixed assignment) Factory setting Sensor (fixed assignment) HART address Navigation Application → HART configuration → HART address Description Use this function to define the HART address of the device.
Page 89 TMT72 Operating menu and parameter description Factory setting 8 x ' ? ' Device tag Navigation System → Device management → Device tag Description Use this function to enter a unique name for the measuring point so it can be identified quickly within the plant.
Page 90 Operating menu and parameter description iTEMP TMT72 Selection • Not active No action is executed and the user exits the parameter. • To factory defaults All the parameters are reset to the factory setting. • To delivery settings All the parameters are reset to the order configuration. The order configuration can differ from the factory setting if customer-specific parameter values were defined when the device was ordered.
Page 91 TMT72 Operating menu and parameter description Change user role → Password Operator Status password entry Reset password → Reset password Operator Status password entry Change password → Old password Maintenance New password Confirm new password Status password entry Delete password →...
Page 92 Operating menu and parameter description iTEMP TMT72 Confirm new password Navigation System → User management → Define password → Confirm new password Description Use this function to confirm the new password that has been defined. Additional information A new password becomes valid once it has been verified after being entered in the Confirm new password parameter.
Page 93 TMT72 Operating menu and parameter description Description →  92 Reset password Navigation System → User management → Reset password Prerequisite The Operator user role is active and a password has already been defined. Description Use this function to enter the reset code to reset the current password.
Page 94 Operating menu and parameter description iTEMP TMT72 Description • Old password: Use this function to enter the current password to then be able to make changes to the existing password. • New password: →  90 • Confirm new password: →  90 User entry •...
Page 95: Information Submenu
Displays the serial number of the device. It can also be found on the nameplate. Uses of the serial number • To identify the measuring device quickly, e.g. when contacting Endress+Hauser. • To obtain specific information on the measuring device using the Device Viewer: www.endress.com/deviceviewer...
Page 96: Firmware Version
In contrast, the device features cannot be read directly from the order code. Uses of the order code • To order an identical spare device. • To identify the device quickly and easily, e.g. when contacting Endress+Hauser. Firmware version Navigation System → Information → Device → Firmware version Description Displays the device firmware version that is installed.
Page 97 TMT72 Operating menu and parameter description Device name Navigation System → Information → Device → Device name Description Displays the device name. It can also be found on the nameplate. Manufacturer Navigation System → Information → Device → Manufacturer Description Displays the name of the manufacturer.
Page 98 Operating menu and parameter description iTEMP TMT72 Description Use this function to enter the altitude data that describe the device location. User entry –1.0 · 10 to +1.0 · 10 Factory setting Location method Navigation System → Information → Device location → Location method Description Use this function to select the data format for specifying the geographic location.
Page 99 TMT72 Operating menu and parameter description HART info submenu Device type Navigation System → Information → HART info → Device type Description Displays the device type with which the device is registered with the HART FieldComm Group. The device type is specified by the manufacturer. It is needed to assign the appropriate device description file (DD) to the device.
Page 100 Operating menu and parameter description iTEMP TMT72 HART message Navigation System → Information → HART info → HART message Description Use this function to define a HART message which is sent via the HART protocol when requested by the master.
Page 101: Submenu: Display
TMT72 Operating menu and parameter description User interface 4-digit hexadecimal number Factory setting 0x0011 Device ID Navigation System → Information → HART info → Device ID Description A unique HART identifier is saved in the device ID and used by the control systems to identify the device.
Page 102: Factory Setting
Operating menu and parameter description iTEMP TMT72 Additional information Value A0014564 Value + bar graph A0014563 Value 1 display (Value 2 or 3 display) Navigation System → Display → Format display → Value 1 display (Value 2 or 3 display) Description Use this function to select a measured value that is shown on the local display.
Page 103 TMT72 Operating menu and parameter description Selection • x • x.x • x.xx • x.xxx • x.xxxx • Automatic Factory setting Automatic Endress+Hauser...
Page 104: Index
Index iTEMP TMT72 Index 0 … 9 Device type ....... . 99 Device variables .
Page 105 TMT72 Index Longitude (parameter) ..... . . 97 Serial number ......95 Simulation (submenu) .
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