Technical Data
CompareThermometer
| Measuring Principle | Thermocouple |
| Characteristic / Application | metric style cable probe suitable for hazardous areas process connection as compression fitting |
| Thermowell / protection tube | without (not intended to use with thermowell) |
| Insert / probe | mineral insulated (MI), flexible |
| Outer diameter protection tube / Insert | 2,0 mm (0,08'') 3,0 mm (0,12'') 4,5 mm (0,18'') 6,0 mm (0,24'') |
| Max. immersion length on request | up to 100.000,00 mm (3.937,01'') |
| Material protection tube/ thermowell | 1.4401 (316) Alloy 600 (2.4816) |
| Process connection | compression fitting: G1/4 G3/8 G1/2 G1/8 NPT1/4 NPT1/2 NPT1/8 NPT3/8 |
| Tip shape | straight |
| Operating temperature range | Type K: max. 1.100 °C (max. 2.012 °F) Type J: max. 750 °C (max. 1.382 °F) |
| Max. process pressure (static) | at 20 °C: 25 bar (363 psi) |
| Accuracy | class 2 acc. to IEC 60584 |
| Response time | t50 = 1 s t90 = 2 s |
| Integration head transmitter | no |
| Ex - approvals | ATEX Ex ia, Ex nA IECEx Ex ia NEPSI Ex ia EAC Ex ia UKCA Ex ia, Ex nA, Ex tc |
| Certification | Gost Metrology |
The thermocouple probe is easy to install and measures temperature reliably and accurately in general process applications, providing high operational safety. The probe is particularly suitable for measuring gaseous and liquid media such as air, water and oil in mechanical equipment, laboratory instruments and plants. The probe housing comes into direct contact with the process medium without an additional thermowell and detects temperature changes quickly and accurately.
Advantages
Insertion length to customer requirements and various process connections for high flexibility
Fast response time
Various thermocouples in accordance with DIN EN 60584 and ASTM E230/ANSI MC96.1: type J (Fe-CuNi), type K (NiCr-Ni)
Can be used in hazardous locations: intrinsically safe (Ex ia) and non-sparking (Ex nA)
NEPSI (Ex ia) approval
Spare Parts & Accessories 3
Configurator / Comparison
Accessories / Spare parts
Source:Endress+Hauserpublic information from the website
Measuring principle video
Click to playManuals & Documents 5
All documents for this modelCase Studies
Municipal Wastewater Treatment · thermocouples — Application Case
Project Background
The project covers the inlet, biological and outlet stages of a municipal plant. The work centres on thermocouples and the core task is high-temperature measurement with thermocouples.
Operating Challenges
The medium and duty are characterised by high solids and corrosive fractions, with large diurnal flow swings, and effluent parameters drift and probes foul with sludge and biofilm. So thermocouples cannot be specified generically — it calls for choosing the type by temperature limit, atmosphere and response speed.
Solution
The Ainstru engineering team worked through the temperature range: temperature solution matched to measuring point and response needs. The configuration involves choosing the type by temperature limit, atmosphere and response speed, with these requirements in view: stable compliance with Grade 1A discharge limits and online data reporting.
Results
Since start-up the system has run steadily; the practical result is strong high-temperature capability, measuring furnace temperatures directly.
Food & Beverage · thermocouples — Application Case
Project Overview
The site is dosing, pasteurising, filling and CIP stages. The customer wanted thermocouples properly configured on the existing plant, with the aim of high-temperature measurement with thermocouples.
Technical Challenges
What actually causes trouble is syrups, dairy and beverages that scale easily, under strict hygienic requirements, and frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. All of this means the thermocouples configuration has to involve choosing the type by temperature limit, atmosphere and response speed.
Configuration
Supply and installation were organised through the temperature range: temperature solution matched to measuring point and response needs. On site this meant choosing the type by temperature limit, atmosphere and response speed, checked line by line against: food-safety and hygienic design per 3-A / EHEDG.
Performance
After commissioning the outcome is strong high-temperature capability, measuring furnace temperatures directly, and the readings are now used for process tuning.
Chemical & Pharmaceutical · thermocouples — Application Case
Site Conditions
This is a Chemical & Pharmaceutical customer whose plant is at reactors, metering vessels and finished-product tanks. The main task was high-temperature measurement with thermocouples.
The Problem
The difficulty lies in highly corrosive media with solvents and crystallisation, partly in explosive atmospheres; at the same time corrosion plus Ex protection shortens instrument life and makes downtime costly. Specification therefore means choosing the type by temperature limit, atmosphere and response speed.
What We Did
We took a temperature range approach — temperature solution matched to measuring point and response needs. Delivery was built around choosing the type by temperature limit, atmosphere and response speed, with point-by-point checks on: Ex certification and GMP traceability of records.
Operating Outcome
In service the system performs as intended — strong high-temperature capability, measuring furnace temperatures directly, with routine maintenance falling noticeably.
Power & Energy · thermocouples — Application Case
Application Context
boiler feedwater, turbine condensate and FGD/DeNOx systems is a typical Power & Energy duty. The project started from thermocouples, focusing on high-temperature measurement with thermocouples.
Process Constraints
drift under high temperature and pressure, with very costly unplanned outages, and high temperature and pressure with both steam and saline water only amplify it. The thermocouples specification must therefore cover choosing the type by temperature limit, atmosphere and response speed.
Delivery Approach
Delivery was handled as the temperature range — temperature solution matched to measuring point and response needs. Execution centred on choosing the type by temperature limit, atmosphere and response speed, together with compliance with power-industry codes and unit availability targets.
Field Results
Operation shows the benefit clearly — strong high-temperature capability, measuring furnace temperatures directly, with confidence in this measuring point improving markedly.
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