Endress+Hauser iTHERM TrustSens TM372 Operating Instructions Manual
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Endress+Hauser iTHERM TrustSens TM372 Operating Instructions Manual

Compact thermometer in us style with self-calibration hart communication
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BA02224T/09/EN/02.22-00
71592469
2022-10-31
Valid as of version
01.00 (device version)
Products
Operating Instructions
iTHERM TrustSens TM372
Compact thermometer in US style with self-calibration
HART communication
Solutions
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Summary of Contents for Endress+Hauser iTHERM TrustSens TM372

  • Page 1 Products Solutions Services BA02224T/09/EN/02.22-00 71592469 2022-10-31 Valid as of version 01.00 (device version) Operating Instructions iTHERM TrustSens TM372 Compact thermometer in US style with self-calibration HART communication...

  • Page 3: Table Of Contents

    TrustSens TM372 HART communication Table of contents Table of contents About this document ....4 Diagnostics and troubleshooting . . . 37 Document function .....

  • Page 4: About This Document

    About this document iTHERM TrustSens TM372 HART communication 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: Documentation

    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. 1.3.1 Document function...
  • Page 6 About this document iTHERM TrustSens TM372 HART communication Document type Purpose and content of the document Safety Instructions (XA) Depending on the approval, safety instructions for electrical equipment in hazardous areas are also supplied with the device. The Safety Instructions are an integral part of the Operating Instructions.

  • Page 7: Basic Safety Instructions

    Conversions to the device Unauthorized modifications to the device are not permitted and can lead to unforeseeable dangers. ‣ If, despite this, modifications are required, consult with Endress+Hauser. Repair Due to its design, the device cannot be repaired. ‣ However, it is possible to send the device in for examination.

  • Page 8: Security

    Basic safety instructions iTHERM TrustSens TM372 HART communication IT security Our warranty is valid only if the product is installed and used as described in the Operating Instructions. The product is equipped with security mechanisms to protect it against any inadvertent changes to the settings.

  • Page 9: Incoming Acceptance And Product

    TrustSens TM372 HART communication Incoming acceptance and product identification Incoming acceptance and product identification Incoming acceptance Proceed as follows on receipt of the device: 1. Check whether the packaging is intact. 2. If damage is discovered: Report all damage immediately to the manufacturer.

  • Page 10: Storage And Transport

    Incoming acceptance and product identification iTHERM TrustSens TM372 HART communication 3.2.3 Certificates and approvals For certificates and approvals valid for the device: see the data on the nameplate Approval-related data and documents: www.endress.com/deviceviewer → (enter the serial number) Hygiene standard •...

  • Page 11: Mounting

    TrustSens TM372 HART communication Mounting Mounting Mounting requirements Information about the conditions, which have to be existent at the mounting location for a designated use, such as ambient temperature, degree of protection, climate class, etc., as well as device dimensions - see section ' T echnical Data' , →  48 The immersion length of the thermometer can influence the accuracy.
  • Page 12 Mounting iTHERM TrustSens TM372 HART communication ≥ 3° ≥ 3° A0031007  3 Mounting possibilities in the process 1, 2 Perpendicular to flow direction, installed at a min. angle of 3° to ensure self-draining On elbows Inclined installation in pipes with a small nominal diameter Immersion length The requirements of the EHEDG and the 3-A Sanitary Standard must be adhered to.
  • Page 13 TrustSens TM372 HART communication Mounting A0046716  5 Detailed installation instructions for hygiene-compliant installation (depends on the version ordered) Varivent process connection for VARINLINE housing Sensor with Varivent connection Counterpart connection O-ring Clamp according to ISO 2852 Molded seal Counterpart connection Process connection Liquiphant-M G1", horizontal installation...

  • Page 14: Post-Mounting Check

    Mounting iTHERM TrustSens TM372 HART communication Post-mounting check  Is the device undamaged (visual inspection)?  Is the device fixed appropriately? Does the device comply to the measurement point specifications, such as ambient temperature, etc.?  →  48 Endress+Hauser...

  • Page 15: Electrical Connection

    TrustSens TM372 HART communication Electrical connection Electrical connection Connecting requirements According to the 3-A Sanitary Standard and EHEDG electrical connecting cables must be smooth, corrosion-resistant and easy to clean. Connecting the measuring device NOTICE To prevent damage to the device ‣...

  • Page 16: Post-Connection Check

    Commubox FXA195 for intrinsically safe HART communication with FieldCare via the USB interface. FieldCare is a FDT-based plant asset management tool from Endress+Hauser, more details see section ' a ccessories' . The acquired self-calibration data is stored in the device (1) and can be read using FieldCare.

  • Page 17: Structure And Function Of The Operating Menu

    TrustSens TM372 HART communication Operability Structure and function of the operating menu 6.2.1 Structure of the operating menu Operating menu for operators and maintenances Setup Device tag Unit 4 mA value 20 mA value Failure mode Calibration Number of self calibrations...

  • Page 18: Access To The Operating Menu Via An Operating Tool

    By using the status information, it is also a simple but effective way of checking their status and condition. Access takes place via the HART protocol or CDI (= Endress+Hauser Common Data Interface). Endress+Hauser...
  • Page 19 TrustSens TM372 HART communication Operability Typical functions: • Configuring parameters of the device • Loading and saving device data (upload/download) • Documentation of the measuring point For iTHERM TrustSens thermometers, FieldCare provides convenient access to automatically created self-calibration reports.
  • Page 20 DeviceCare Function scope 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 tool is aimed at customers without a digital network in plants and workshops as well as Endress +Hauser service technicians.
  • Page 21 TrustSens TM372 HART communication Operability 6.3.4 AMS Device Manager Function scope Program from Emerson Process Management for operating and configuring measuring devices via the HART protocol. Source for device description files See data →  22 6.3.5 SIMATIC PDM...

  • Page 22: System Integration

    Endress+Hauser supports all common operating tools of different manufacturers (e.g. Emerson Process Management, ABB, Siemens, Yokogawa, Honeywell and many more). The Endress+Hauser operating tools FieldCare and Device care can also be obtained per download (www. endress.com --> Downloads --> Media Type: Software --> Application Software) or via optical data storage medium (DVD) from your local Endress+Hauser sales center.

  • Page 23: Supported Hart ® Commands

    TrustSens TM372 HART communication System integration Supported HART ® commands The HART ® protocol enables the transfer of measurement data and device data between the HART ® master and the field device. HART ® masters such as the above listed operating tools require an appropriate device driver software (DD or DTM) to establish the data exchange.
  • Page 24 System integration iTHERM TrustSens TM372 HART communication Command No. Designation 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 54, Cmd054...

  • Page 25: Commissioning

    TrustSens TM372 HART communication Commissioning Commissioning Function check Before commissioning the device make sure that all final checks have been carried out: • Checklist "Post-mounting check" , →  14 • Checklist "Post-connection check", →  16 Switching on the measuring device Once the final checks have been successfully completed, it is time to switch on the supply voltage.
  • Page 26 Commissioning iTHERM TrustSens TM372 HART communication A0048542 Navigation "Setup" menu → 4 mA value "Setup" menu → 20 mA value 1. In the 4 mA value input window, enter the lower range value of your process measurement range and press ENTER to confirm.

  • Page 27: Creating A Calibration Report

    TrustSens TM372 HART communication Commissioning 2. In the Upper warning value input window, enter the upper warning limit for the self-calibration deviation and press ENTER to confirm. 8.3.3 Defining the alarm limits for the self-calibration Use this function to define the lower and upper alarm limit. As a result of each self- calibration the deviation between the reference sensor and the Pt100 sensor is being determined.
  • Page 28 Commissioning iTHERM TrustSens TM372 HART communication A0048545 To read the calibration point data from the device, enter the calibration point index. Index 1 reads the latest calibration point. 4. Press READ DATA to confirm.  An overview of device information and calibration point data appears. See table below for detailed information.

  • Page 29: Protecting Settings From Unauthorized Access

    TrustSens TM372 HART communication Commissioning 6. Enter a file name for the calibration report and select a memory location in your file system.  The calibration report is just being saved on your file system. 7. Either press EXIT to end the calibration report wizard, press SELECT CALIBRATION POINT to select another stored self-calibration point or press READ OLDER CALIBRATION POINT to switch to the previous self-calibration point.

  • Page 30: Advanced Settings

    Commissioning iTHERM TrustSens TM372 HART communication To activate the write protection please go through the following steps: 1. Define a write protection in the Enter access code parameter. 2. Enter a code which does not correspond to the one which is defined in step 1.
  • Page 31 TrustSens TM372 HART communication Commissioning Advantages • Device condition information is available immediately and processed in time. • The status signals are classified in accordance with VDI/VDE 2650 and NAMUR recommendation NE 107 and contain information about the cause of the error and remedial action.
  • Page 32 Commissioning iTHERM TrustSens TM372 HART communication Diagnostic message in the operating tool 1. Navigate to the "Diagnostics" menu.  The diagnostic event, along with the event text, is displayed in the Actual diagnostics parameter. 2. In the display area, hover the cursor over the "Actual diagnostics" parameter.
  • Page 33 TrustSens TM372 HART communication Commissioning Menu "Diagnostics → Heartbeat" → Heartbeat Verification A0048550 Press the Heartbeat Verification button.  A0048551 The user-guided wizard appears. 2. Follow the instructions given by the wizard.  The wizard guides you through the entire process for creating the verification report.
  • Page 34 Commissioning iTHERM TrustSens TM372 HART communication Verification report: general information Parameter Description/comments Device information System operator Name of the system operator; is defined when the verification report is created. Location Location of the device within the plant; is defined when the verification report is created.
  • Page 35 A higher-level controller is configured in such a way that calibration deviations and the calibration counter are saved when the calibration counter changes. This type of function is supported by Endress+Hauser' s Advanced Data Manager Memograph M RSG45, for example. The following table provides a sample overview of the monitoring analysis using...
  • Page 36 Commissioning iTHERM TrustSens TM372 HART communication  Time stamp Device name Category Text  25.07.2018 TrustSens 1 (example)Self-calibration EH_TM371_M7041504487: self-calibration (ID=183) Serial number: M7041504487 Device name: iTHERM TM371/372 Operating hours: 1626 h Reference temperature: 118.67 °C Measured temperature value: 118.68 °C Deviation: 0.01 °C Measuring uncertainty (k=2): 0.35 °C...

  • Page 37: Diagnostics And Troubleshooting

    TrustSens TM372 HART communication Diagnostics and troubleshooting Diagnostics and troubleshooting Troubleshooting Always start troubleshooting with the checklists below if faults occur after start up or during operation. This takes you directly (via various queries) to the cause of the problem and the appropriate remedial measures.

  • Page 38: Diagnostic Information

    Diagnostics and troubleshooting iTHERM TrustSens TM372 HART communication Diagnostic information Status signal and diagnostic behavior can be configured manually. Status signal - Digital information available via HART® communication Letter/ Status signal Meaning of the status signal symbol Failure The device or its periphery behaves in such a way that the measurement value is no longer valid.

  • Page 39: Overview Of Diagnostics Events

    TrustSens TM372 HART communication Diagnostics and troubleshooting Overview of diagnostics events Diagnostic events are assigned to a certain diagnostic number and a status signal. The user can change this assignment for certain diagnostic events. Example: Settings Device behavior Configuration example...
  • Page 40 Diagnostics and troubleshooting iTHERM TrustSens TM372 HART communication Status Diagnostic Configurable Configurable Diagnostic signal behavior Priority Short text Remedy number (factory from the default) factory configurable configurable Factory reset active Factory reset in progress, please Warning wait. Initialization active Initialization in progress, please Warning wait.

  • Page 41: Diagnostic List

    TrustSens TM372 HART communication Diagnostics and troubleshooting Status Diagnostic Configurable Configurable Diagnostic signal behavior Priority Short text Remedy number (factory from the default) factory configurable configurable Process value out of 1. Check process value. specification 2. Check application. Warning 3.

  • Page 42: Maintenance

    Maintenance iTHERM TrustSens TM372 HART communication Maintenance In general, no specific maintenance is required for this device. 10.1 Cleaning The sensor has to be cleaned as required. The cleaning can also be proceeded when the device is installed (e.g. CIP Cleaning in Place / SIP Sterilization in Place). Care must be taken to ensure that the sensor is not damaged during the cleaning.

  • Page 43: Repair

    TrustSens TM372 HART communication Repair Repair Due to its design, the device cannot be repaired. 11.1 Spare parts Currently available spare parts for your product can be found online at: http://www.products.endress.com/spareparts_consumables. When ordering spare parts, please quote the serial number of the device!

  • Page 44: 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.
  • Page 45 TrustSens TM372 HART communication Accessories Weld-in adapter for Ingold process Material of wetted parts: 316L/1.4435 connection (OD 25 mm (0.98 in) x Weight: 0.32 kg (0.7 lb) 46 mm (1.81 in) Order numbers: • 71531585 - with 3.1 material certificate G 1¼”...

  • Page 46: Communication-Specific Accessories

    Order code: TXU10-BD A0028635 Commubox FXA291 Connects Endress+Hauser field devices with a CDI interface (= Endress+Hauser Common Data Interface) and the USB port of a computer or laptop (Non-Ex area and Ex area).  For details, see Technical Information TI00405C...

  • Page 47: Service-Specific Accessories

    DeviceCare is the tool developed by Endress+Hauser for the configuration of Endress+Hauser devices. All smart devices in a plant can be configured via a point- to-point or point-to-bus connection. The user-friendly menus enable transparent and intuitive access to the field devices.

  • Page 48: System Components

    Technical Data iTHERM TrustSens TM372 HART communication 12.4 System components Advanced Data Manager The Advanced Data Manager Memograph M is a flexible and powerful system for Memograph M organizing process values. The measured process values are clearly presented on the display and logged safely, monitored for limit values and analyzed. Via...
  • Page 49 TrustSens TM372 HART communication Technical Data Load Maximum possible HART communication resistance = (U - 12 V) / 0.023 A (current Ω b max. b max. output) 17.75 24.2 A0046080 Load Supply voltage U Linearization/transmission Temperature-linear behavior Filter order digital filter: 0 to 120 s, factory setting: 0 s (PV)

  • Page 50: Wiring

    • Maximum current consumption: I ≤ 23 mA Overvoltage protection To protect against overvoltage in the power supply and signal/communication cables for the thermometer electronics, Endress+Hauser offers the HAW562 surge arrester for DIN rail mounting. For more information see the Technical Information ' H AW562 Surge arrester' TI01012K 13.4...
  • Page 51 TrustSens TM372 HART communication Technical Data Process temperature: +20 to +135 °C (+68 to +275 °F) < 0.22 K (0.4 °F) +135 to +160 °C (+275 to +320 °F) < 0.38 K (0.68 °F) +160 to +170 °C (+320 to +338 °F) <...
  • Page 52 Technical Data iTHERM TrustSens TM372 HART communication Sample calculation with Pt100, measuring range +20 to +135 °C (+68 to +275 °F), ambient temperature +35 °C (+95 °F), supply voltage 30 V: Measured error digital 0.220 K (0.396 °F) Measured error D/A = 0.03 % x 150 °C (302 °F) 0.045 K (0.081 °F)
  • Page 53 TrustSens TM372 HART communication Technical Data The measurement uncertainty can increase due to heat conduction errors and short immersion lengths. The existing measurement uncertainty is listed on the individual calibration certificate. For accredited calibrations according to IEC/ISO 17025, the measurement uncertainty must not be twice as high as the accredited measurement uncertainty of the laboratory.

  • Page 54: Environment

    Technical Data iTHERM TrustSens TM372 HART communication automatically. Based on this, the device is ready to perform a self-calibration under the following conditions: Calibration point 118 °C (244.4 °F) Process temperature > calibration temperature + 3 °C (5.4 °F) for 25 s before cooling down; t1 - t2.

  • Page 55: Mechanical Construction

    M12 connector with a suitable IP rating is installed according to its manual. Shock and vibration Endress+Hauser temperature sensors meet the requirements of IEC 60751 which specify resistance shock and vibration resistance of 3g in the range from 10 to 500 Hz. This also applies for the quick-fastening iTHERM QuickNeck.
  • Page 56 Technical Data iTHERM TrustSens TM372 HART communication Without protection tube For installation in an existing protection tube. 31.5 (1.24) 31.5 (1.24) NPT ½“ A0048125 Thermometer with thread NPT ½" and spring load to mount in existing protection tube Thermometer with iTHERM QuickNeck top part and spring load for protection tube with iTHERM QuickNeck connection, ⌀ID = 3 mm or 6 mm...
  • Page 57 TrustSens TM372 HART communication Technical Data Protection tube diameter (¼, 3/8, ½ in) ½ “ 6.35 12.7 9.53 ¼ ½ (3/8) 4.76 4.76 (3/16) (3/16) A0033718  11 Protection tube with neck connection NPT ½" and various process connection versions: Tri-clamp Cylindrical weld-in adapter D ¾"...
  • Page 58 Technical Data iTHERM TrustSens TM372 HART communication With tee- or elbow thermowell version A0048280 Thermometer with tee thermowell Version with elbow thermowell Thermometer with quick-fastening iTHERM QuickNeckVersion and tee thermowell Thermometer with quick-fastening iTHERM QuickNeck and elbow thermowell Item Version...
  • Page 59 ≤3% at weldings (following Basel Standard II) Can be used to a limited extent up to 800 °C (1472 °F) for low compressive loads and in non-corrosive media. Contact your Endress+Hauser sales team for further information. Surface roughness Values for process/product contact surfaces: Standard surface, mechanically polished ≤...
  • Page 60 Technical Data iTHERM TrustSens TM372 HART communication Protection tube Process connections All dimensions in mm (in). Type Version Technical properties Metal sealing system Type Technical properties Varivent ® for VARINLINE ® housing for installation in pipes • 3-A marked and EHEDG certified •...
  • Page 61 TrustSens TM372 HART communication Technical Data Process connections All dimensions in mm (in). For welding in Type Version Dimensions Technical properties Weld-in adapter Cylindrical ½" NPS ⌀d = ½" NPS, h = 38.1 mm (1.5 in), U = immersion length from lower edge, T = min.
  • Page 62 Technical Data iTHERM TrustSens TM372 HART communication Dimensions Type Version G Technical properties L1 thread 1 (SW/AF) length Thread according to ISO 228 (for • P = 25 bar (362 psi) at Liquiphant weld-in adapter) G¾" for FTL20 max. max. 150 °C (302 °F) adapter •...
  • Page 63 TrustSens TM372 HART communication Technical Data Type Technical properties OD 4": 97.6 mm (3.84 in) OD 4": 101.6 mm (4 in) Type F, according to DIN OD 1": 22.2 mm (0.87 in) OD 1": 25.4 mm (1 in) 50 mm (1.97 in)
  • Page 64 • The flow characteristics are optimized, thereby increasing the stability of the thermowell. • Endress+Hauser offers users a range of thermowell tips to meet every requirement: • Reduced tip with ⌀4.3 mm (0.17 in) and ⌀5.3 mm (0.21 in): walls of lower thickness significantly reduce the response times of the overall measuring point.

  • Page 65: Certificates And Approvals

    The CRN approval is only available for certain options of protection tubes. These will be marked and shown during the configuration of this device. Detailed ordering information is available from the following sources: • In the download area on the Endress+Hauser website: www.endress.com → Select your country →...
  • Page 66 Calibration The "Factory calibration" is carried out according to an internal procedure in a laboratory of Endress+Hauser accredited by the European Accreditation Organization (EA) to ISO/IEC 17025. A calibration which is performed according to EA guidelines (SIT/Accredia) or (DKD/DAkkS) may be requested separately.

  • Page 67: Operating Menu And Parameter

    TrustSens TM372 HART communication Operating menu and parameter description Operating menu and parameter description The following tables list all the parameters in the "Setup", "Calibration", "Diagnostics" and "Expert" operating menus. The page reference indicates where a description of the parameter can be found in the manual.
  • Page 68 Operating menu and parameter description iTHERM TrustSens TM372 HART communication Diagnostics → Event logbook → Previous diagnostics n →  78 Previous diag (n) channel →  78 n = Number of diagnostics messages (n = 1 to 5) Diagnostics →...
  • Page 69 TrustSens TM372 HART communication Operating menu and parameter description Expert → Enter access code →  85 Access status tooling →  86 Locking status →  86 Expert → System → Unit →  71 Damping →  87 Expert →...
  • Page 70 Operating menu and parameter description iTHERM TrustSens TM372 HART communication Latitude →  96 Altitude →  96 Location method →  97 Expert → Communication → HART output → Assign current output (PV) →  97 →  97 Assign SV →...

  • Page 71: Setup Menu

    TrustSens TM372 HART communication Operating menu and parameter description 14.1 Setup menu This menu contains all the parameters that are needed to configure the basic settings of the device. The thermometer can be put into operation with this limited parameter set.

  • Page 72: Calibration Menu

    Operating menu and parameter description iTHERM TrustSens TM372 HART communication 20 mA value Navigation Setup → Upper range value Expert → Output → 20 mA value Description Use this function to assign a measured value to the current value 20 mA.

  • Page 73: Deviation

    TrustSens TM372 HART communication Operating menu and parameter description Deviation Navigation Calibration → Deviation Description This function displays the measured Pt100 self-calibration deviation from the reference temperature. The deviation is calculated as follows: Self-calibration deviation = reference temperature - measured Pt100 temperature value + adjustment Display _.__ °C...

  • Page 74: Lower Alarm Value

    Operating menu and parameter description iTHERM TrustSens TM372 HART communication Navigation Calibration → Limits → Upper warning value Description Enter the upper warning limit for the self calibration deviation. User entry +0.5 to +1.0 · 10 °C Factory setting +0.5 °C Additional information Use this function to define the upper warning limit.

  • Page 75: Calibration → Interval Monitoring 1) → Control

    TrustSens TM372 HART communication Operating menu and parameter description 14.2.2 "Interval monitoring" submenu The parameter configuration in this submenu is allocated into two calibration items: Self-calibration monitoring: Monitoring function for the start of the next self- calibration. Manual calibration reminder: This function signalizes when the next manual calibration has to be performed.

  • Page 76: Diagnostics Menu

    Operating menu and parameter description iTHERM TrustSens TM372 HART communication Description Self-calibration monitoring: Displays the remaining time in days until a self-calibration must be initiated. A successful self-calibration will set the counter to its start value. If the countdown value reaches zero, the device will transmit the defined status signal and show the defined diagnostic behavior via the LED, Factory default = Alarm - LED red illuminated Manual calibration reminder: Indication of the remaining time up to the next calibration.

  • Page 77: Operating Time

    TrustSens TM372 HART communication Operating menu and parameter description Operating time Navigation Diagnostics → Operating time Description Use this function to display the length of time the device has been in operation up to now. Display Hours (h) 14.3.1 "Diagnostic list"...
  • Page 78 Operating menu and parameter description iTHERM TrustSens TM372 HART communication Display • ---------- • Sensor • Device temperature • Reference sensor • Current output 14.3.2 "Event logbook" submenu Previous diagnostics n n = Number of diagnostic messages (n = 1 to 5) Navigation Diagnostics →...
  • Page 79 Use this function to display 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 Display Max.
  • Page 80 Operating menu and parameter description iTHERM TrustSens TM372 HART communication Navigation Diagnostics → Device information → Order code Description Use this function to display the order code of the device. It can also be found on the nameplate. The order code is generated from the extended order code, which defines all the device features of the product structure.
  • Page 81 TrustSens TM372 HART communication Operating menu and parameter description Hardware revision Navigation Diagnostics → Device information → Hardware revision Description Indication of the hardware revision of the device. Configuration counter Navigation Diagnostics → Device information → Configuration counter Description Use this function to display the counter reading for changes to device parameters.
  • Page 82 Operating menu and parameter description iTHERM TrustSens TM372 HART communication "Min/max values" submenu Sensor min value Navigation Diagnostics → Measured values → Min/max values → Sensor min value Description Use this function to display the minimum temperature measured in the past at sensor input (peakhold indicator).
  • Page 83 TrustSens TM372 HART communication Operating menu and parameter description Reset device temp. min/max values Navigation Diagnostics → Measured values → Min/max values → Reset device temp. min/max values Description Use this function to reset the maximum indicators for the minimum and maximum electronic temperatures measured.
  • Page 84 Operating menu and parameter description iTHERM TrustSens TM372 HART communication 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 85: Expert Menu

    TrustSens TM372 HART communication Operating menu and parameter description Factory setting See overview of diagnostic events →  39 Status signal Navigation Diagnostics → Diagnostic settings → Status signal Description Each diagnostic event is assigned to a certain status signal from the factory.
  • Page 86 Operating menu and parameter description iTHERM TrustSens TM372 HART communication Additional information Software device write protection is also switched on and off with this parameter. Software device write protection in conjunction with download from an operating tool with offline capabilities •...
  • Page 87 TrustSens TM372 HART communication Operating menu and parameter description 14.4.1 "System" submenu Unit →  71 Navigation Setup → Unit Expert → System → Unit Damping Navigation Expert → System → Damping Description Use this function to set the time constant of the measured value.
  • Page 88 Operating menu and parameter description iTHERM TrustSens TM372 HART communication Additional information • Activating device write protection: A value must be entered in the Enter access code parameter, which is not corresponding to this defined device write protection code. • Deactivating device write protection: if device write protection is activated, enter the defined write protection code in the Enter access code parameter.
  • Page 89 TrustSens TM372 HART communication Operating menu and parameter description Failure current Navigation Expert → Output → Failure current Prerequisite The option High alarm is enabled in the failure mode. Description Use this function to set the value the current output adopts in an alarm condition.
  • Page 90 Operating menu and parameter description iTHERM TrustSens TM372 HART communication User entry 3.5 to 4.25 mA Factory setting 4 mA Additional information The trimming only affects current loop values from 3.8 to 20.5 mA. Failure mode with Low Alarm and High Alarm current values are not subjected to the trimming.
  • Page 91 TrustSens TM372 HART communication Operating menu and parameter description Additional information After the device has been started up the loop check starts and the activated simulation values will be checked. These loop current values can be measured with a accurate amperemeter.
  • Page 92 Operating menu and parameter description iTHERM TrustSens TM372 HART communication Factory setting • Simulation value 1: 4.00 mA, not activated • Simulation value 2: 12.00 mA, not activated • Simulation value 3: 20.00 mA, not activated • Low alarm and High alarm not activated...
  • Page 93 TrustSens TM372 HART communication Operating menu and parameter description Factory setting Additional information The measured value can only be transmitted via the current value is the address is set to "0". The current is fixed at 4.0 mA for all other addresses (Multidrop mode).
  • Page 94 Operating menu and parameter description iTHERM TrustSens TM372 HART communication Description Use this function to view the device revision with which the device is registered with the HART ® FieldComm Group. It is needed to assign the appropriate device description file (DD) to the device.
  • Page 95 TrustSens TM372 HART communication Operating menu and parameter description HART message Navigation Expert → Communication → 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 96: Latitude

    Operating menu and parameter description iTHERM TrustSens TM372 HART communication Factory setting 32 x ' ? ' Location description Navigation Expert → Communication → HART info → Location description Description Enter the location description to find the device in the plant.

  • Page 97: Location Method

    TrustSens TM372 HART communication Operating menu and parameter description Location method Navigation Expert → Communication → HART info → Location method Description Use this function to select the data format for specifying the geographic location. The codes for specifying the location are based on the US National Marine Electronics Association (NMEA) Standard NMEA 0183.

  • Page 98: Assign Tv

    Operating menu and parameter description iTHERM TrustSens TM372 HART communication Display Device temperature (Fixed assignment) Navigation Expert → Communication → HART output → SV Description Use this function to display the secondary HART value Assign TV Navigation Expert → Communication → HART output → Assign TV Description Allocation of a measured variable to the tertiary HART value (TV).
  • Page 100 *71592469* 71592469 www.addresses.endress.com...

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