Technical Data
CompareThermometer
| Measuring Principle | Resistance Temperature Detector |
| Characteristic / Application | metric style imperial style easy-to-use suitable for hazardous areas process connection: flanged Storage applications linear sensor distribution modular design |
| Thermowell / protection tube | without (not intended to use with thermowell) |
| Insert / probe | mineral insulated (MI), flexible |
| Outer diameter protection tube / Insert | 25 mm 37 mm |
| Max. immersion length on request | up to 60.000,00 mm (2.360'') |
| Material protection tube/ thermowell | 1.4401 (316) 1.4435 (316L) |
| Process connection | flange: 1 1/2" ASME/ANSI B16.5 150 ...300 2" ASME/ANSI B16.5 150 ...300 3" ASME/ANSI B16.5 150 ..300 4"ASME/ANSI B16.5 150 ..300 DN40 EN/DIN 1092.1 PN16 ...PN40 DN50 EN/DIN 1092.1 PN16 ...PN40 DN80 EN/DIN 1092.1 PN16 ...PN40 DN100 EN/DIN 1092.1 PN16 ...PN40 |
| Tip shape | straight |
| Operating temperature range | Type K: max. 800 °C (max. 1.472 °F) Type J: max. 520 °C (max. 968 °F) Pt100 WW: -200...600 °C (-328…1.112 °F) Pt100 iTHERM StrongSens: -50…500 °C (-58…932 °F) Pt100 TF: -50…400 °C (-58...752 °F) |
| Max. process pressure (static) | at 20 °C: 40 bar (580 psi) |
| Accuracy | class 1 acc. to IEC 60584 class 2 acc. to IEC 60584 class Special ASTM E230 and ANSI MC 96.1 IEC60751 Class A IEC60751 Class AA |
| Response time | TC t50 = 1 s t90 = 2 s RTD t50 = 3 s t90 = 6 s |
| Integration head transmitter | yes (4 … 20 mA; HART; PROFIBUS PA; FOUNDATION FIELDBUS) |
| Ex - approvals | ATEX IECEx UL FM CSA NEPSI EAC |
| Certification | SIL (transmitter only) NEPSI |
The iTHERM MultiSens TMS31 multipoint thermometer uses a modular design for average temperature detection and density profile measurement in tanks, oil tanks or fuel tanks storing grain and organic bulk solids.
The device is robust and equipped with high-precision temperature sensors, guaranteeing safe, reliable and economical product storage. The standard flexible armored multipoint thermometer can accommodate up to 20 thermocouples (TC) or resistance thermometers (RTD).
Advantages
Flexible customization, simple installation and easy process integration
Flexible armored thermometer meets all silo or tank installation conditions (filling, emptying, storage, etc.)
Intrinsically safe device for use in hazardous areas
Robust with a long service life for continuous monitoring under all operating conditions
Application areas
Oil tanks
Bulk solids silos
Spare Parts & Accessories 11
11 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| TMT31- | F+ Temperature transmitter TMT312-wire temperature transmitter. Single sensor input. Application: RTD/TC. Factory setup w/o additional specification: Pt100, 4-wire, 0...+100oC, presetting failure current low. Consider additional marine certificate requirements on application side. | Enquire |
| TMT71- | Temperature transmitter TMT712-wire temperature transmitter. Single universal sensor input. Galvanic isolation 2kV (input/output). Application: RTD, TC, Ohm and mV. Factory setup w/o additional specification:Pt100, 4-wire, 0...+100oC. | Enquire |
| TMT72- | Temperature transmitter TMT722-wire temperature transmitter. Single universal sensor input. Galvanic isolation 2kV (input/output). Application: RTD, TC, Ohm and mV. Factory setup w/o additional specification: Pt100, 4-wire, 0...+100oC | Enquire |
| TMT82- | Temperature transmitter TMT822-wire temperature transmitter. Dual universal sensor input. Galvanic isolation 2kV (input/output). Application: RTD, TC, Ohm and mV. Presetting failure current high. Consider additional marine certificate requirements on application side. ::Highly reliable due to drift detection and sensor back up. ::Optional also for safety critical applications by means of SIL 2/3 acc. to IEC61508. | Enquire |
| TMT84- | Temperature transmitter TMT84Dual sensor input. Advanced diagnostics: sensor monitoring. Galvanic isolation 2kV. Application: RTC, TC, Ohm, mV. Current consumption: 11 mA. Mounting: head form B, DIN43729. Factory setup: CH1: Pt100, 3-wire, oC CH2: inactive Differing configuration optional selectable. | Enquire |
| TMT85- | Temperature transmitter TMT85Temperature transmitter with dual sensor input and advanced diagnostics for sensor monitoring. FOUNDATION Fieldbus protocol (ITK 5.0). Galvanic isolation 2 kV (sensor input to the output). Application: RTC, TC, Ohm, mV. Current consumption: 11 mA. Mounting: head form B, DIN43729. UL listed, CSA General Purpose. | Enquire |
| TMT86- | Temperature transmitter TMT862-wire Ethernet transmitter. Dual universal sensor input. Galvanic isolation 2kV (input/output). Application: RTD, TC, Ohm and mV. Factory setup w/o additional specification: CH1: Pt100, 4-wire, oC, CH2: inactive. | Enquire |
| 71044061 | equipment package2x screws, 2x springs, 2x spring rings, 1x sealing CDI-connector | Details |
| 71044062 | equipment package2x screws, 1x sealing CDI-connector | Details |
| TMT142B- | iTEMP Temperature Transmitter HART TMT142B2-wire temperature transmitter. Single universal sensor input. Galvanic isolation 2kV (input/output). Application: RTD, TC, Ohm and mV. Factory setup w/o additional specification:Pt100, 4-wire, 0...+100oC, presetting failure current low. | Enquire |
| TMT162- | Field temperature transmitter TMT162Temperature transmitter. Application: RTD, TC, Ohm, mV. HART, PROFIBUS PA or FOUNDATION Fieldbus separately available. Galvanic isolation 2 kV (sensor input/output). NEMA 4x, IP67. Dual compartment. GL (German Lloyd)Marine (only HART). UL listed. | Enquire |
Configurator / Comparison
Accessories / Spare parts
Source:Endress+Hauserpublic information from the website
Measuring principle video
Click to playManuals & Documents 4
All documents for this modelCase Studies
Municipal Wastewater Treatment · thermistor — Application Case
Project Overview
The site is the inlet, biological and outlet stages of a municipal plant. The customer wanted thermistor properly configured on the existing plant, with the aim of high-accuracy temperature measurement with platinum resistance elements.
Technical Challenges
What actually causes trouble is high solids and corrosive fractions, with large diurnal flow swings, and effluent parameters drift and probes foul with sludge and biofilm. All of this means the thermistor configuration has to involve choosing Pt100 or Pt1000 by accuracy class, wiring system and insertion depth.
Configuration
Supply and installation were organised through the temperature range: temperature solution matched to measuring point and response needs. On site this meant choosing Pt100 or Pt1000 by accuracy class, wiring system and insertion depth, checked line by line against: stable compliance with Grade 1A discharge limits and online data reporting.
Performance
After commissioning the outcome is clear accuracy advantage at low temperatures, giving tighter process windows, and the readings are now used for process tuning.
Food & Beverage · thermistor — Application Case
Site Conditions
This is a Food & Beverage customer whose plant is at dosing, pasteurising, filling and CIP stages. The main task was high-accuracy temperature measurement with platinum resistance elements.
The Problem
The difficulty lies in syrups, dairy and beverages that scale easily, under strict hygienic requirements; at the same time frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. Specification therefore means choosing Pt100 or Pt1000 by accuracy class, wiring system and insertion depth.
What We Did
We took a temperature range approach — temperature solution matched to measuring point and response needs. Delivery was built around choosing Pt100 or Pt1000 by accuracy class, wiring system and insertion depth, with point-by-point checks on: food-safety and hygienic design per 3-A / EHEDG.
Operating Outcome
In service the system performs as intended — clear accuracy advantage at low temperatures, giving tighter process windows, with routine maintenance falling noticeably.
Chemical & Pharmaceutical · thermistor — Application Case
Application Context
reactors, metering vessels and finished-product tanks is a typical Chemical & Pharmaceutical duty. The project started from thermistor, focusing on high-accuracy temperature measurement with platinum resistance elements.
Process Constraints
corrosion plus Ex protection shortens instrument life and makes downtime costly, and highly corrosive media with solvents and crystallisation, partly in explosive atmospheres only amplify it. The thermistor specification must therefore cover choosing Pt100 or Pt1000 by accuracy class, wiring system and insertion depth.
Delivery Approach
Delivery was handled as the temperature range — temperature solution matched to measuring point and response needs. Execution centred on choosing Pt100 or Pt1000 by accuracy class, wiring system and insertion depth, together with Ex certification and GMP traceability of records.
Field Results
Operation shows the benefit clearly — clear accuracy advantage at low temperatures, giving tighter process windows, with confidence in this measuring point improving markedly.
Power & Energy · thermistor — Application Case
Customer Profile
The typical setting in Power & Energy is boiler feedwater, turbine condensate and FGD/DeNOx systems. The measuring point is thermistor; the focus is high-accuracy temperature measurement with platinum resistance elements.
Key Difficulties
Conditions are high temperature and pressure with both steam and saline water and, on top of that, drift under high temperature and pressure, with very costly unplanned outages, which a standard configuration cannot handle for long. The design therefore starts with choosing Pt100 or Pt1000 by accuracy class, wiring system and insertion depth.
Implementation
The scope ran through the temperature range: temperature solution matched to measuring point and response needs. Technically it hinges on choosing Pt100 or Pt1000 by accuracy class, wiring system and insertion depth, and on these requirements: compliance with power-industry codes and unit availability targets.
Customer Benefit
In practice this means clear accuracy advantage at low temperatures, giving tighter process windows, which cut the workload on the site maintenance team.
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