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Modular electrical thermometers

Areas of application
  • chemistry and petrochemistry
  • general process engineering
  • energy technology
  • environmental engineering
  • mechanical and plant engineering
Features
  • modular design
  • robust for high temperatures and process pressures
  • universally applicable
Approvals
  • ATEX
  • optional IECEx
TEM Models

You can find more information here

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General information

This product group enables the individual modules to be combined selectively:

  • Thermowell / Thermowell pocket
  • Measuring insert
  • Neck tube (extantion tube)
  • Connection head

An optimised configuration of an electrical thermometer for specific applications or measuring tasks.  Depending on the choice of sensor and thermowell, measuring ranges from -200 to 1100 °C,  with fast response, extremely robust capabilities to withstand harsh process conditions.

This system allows the sensor element (measuring insert) to be replaced during operation. The main application is temperature measurement in pipes and containers. Helpful information and recommendations on the advantageous/correct installation of electrical thermometers can be found in VDE-VDI guideline 3522.

The type code is derived from the design of the protective sleeve/protective tube, the measuring insert and whether a separate, removable neck tube is present:

a) Neck tube (extantion tube)

  • Without removable neck tube, definition “one-piece” Type series TEM1x
  • With detachable neck tube, definition “multi-piece” Type series TEM2x

b) Design of the protection tube

  • Tube construction, TEM1x series
  • Made from solid material, TEM2x series
1.1 One-piece thermometers:
TEM110 – one-piece thermometer with thermowell made of tube and with neck tube section
TEM111 – one-piece thermometer with thermowell made of tube and without neck tube section neck tube section (compact version)
TEM120 – one-piece thermometer with solid thermowell and with neck tube section
TEM121 – one-piece thermometer with solid thermowell without neck tube section (compact version)
1.2 Multi-part thermometers
TEM210 – multi-part thermometer with thermowell made of tube
TEM220 – multi-part thermometer with bar stock drilled thermowell
1.3 Thermometer assemblies
TEM31 – Module assembly, consisting of connection head and measuring insert
TEM32 – Module assembly, consisting of connection head, measuring insert and neck tube
The TEM31 and TEM32 series are designed to become a complete thermometer by mounting it on an existing thermowell protection tube to form a complete thermometer.  This is usually the responsibility of the customer. They are therefore only regarded as subordinate thermometer assemblies. This category also includes the so-called “Van Stone” arrangements, in which a loose thermowell is mounted pressure-tight to the process by means of a clamping flange. Enamelled thermowells are also often mounted according to this principle.
1.4 The areas of application
The areas of application for this thermometer system are:
  • Chemical industry
  • Petrochemical industry
  • Energy industry
  • Environmental technology
  • Cryogenic plants
  • Oil and gas production plants
  • Network systems
  • Food and beverage industries

Possible authorisations and certificates:

  • Explosion protection according to ATEX, IECEx or EAC (TR CU)
  • Ex i according to Namur recommendation NE24
  • SIL certificates
  • DIN 14597 (heat generating systems)
1.5 Tests and test results

In order to meet the increased quality requirements of the application/process, the devices can be supplied with test and inspection certificates. Böhme + Ewert offers the following testsand certificates according to DIN EN 10204:

a) general

Works certificate 2.1. Inspection certificate 3.1 for:

  • Visual, dimensional and functional test

b) measurement use

Inspection certificate 3.1 for:

  • Comparison measurement (factory calibration)
  • DAkkS calibration via an accredited partner laboratory
  • Pre test certificate for certification by board of weight and measurement (PT100 only)

c) thermowell

Inspection certificate 3.1 for:

  • Materials (material monitoring)
  • Pressure test
  • Dye penetration test on the weld seams
  • X-ray inspection of the weld seams
  • Helium leak test

On request, certain tests can also be certified in accordance with DIN EN 10204 3.2.

Do you have any questions?

Böhme + Ewert GmbH’s application technology department will be happy to provide you with further advice.

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