The OPTITEMP TRA-TF31 is a flanged RTD sensor assembly with a tapered barstock thermowell (DIN form 4F). The temperature assembly for advanced requirements is particularly suitable for use in pipes, tanks or reactors where a high mechanical stress resistance of the thermowell is required (e.g. petrochemical or oil and gas applications). The advantage of this sensor type is that its wetted parts can be coated (e.g. with PTFE), making it resistant to aggressive media. The RTD is designed for temperature measurement of solids, liquids, gases and steam up to +600°C / +1112°F.
The OPTITEMP TRA-TF31 features a modular design with a threaded standard neck tube that can be exchanged easily, even under operating conditions. This makes the temperature assembly very flexible. If it has been damaged from the outside, servicing can be carried out without process shut down. The resistance temperature device can be combined with most thermowells. It is available with ATEX and IECEx approvals.
Product features and options depend on device configuration: Contact us to make sure that your preferred functionality can be combined in one device.
Depending on selected device configuration
| Product type | Temperature assembly |
| Product family name | OPTITEMP |
| Product positioning | For higher flow velocities and pressures |
| Product variants |
|
| Measurement variables | Temperature |
| Measurement principle | Resistance (RTD) |
| Measured media | Liquids, Gases, Steam, Solids |
| Assembly with thermowell | Yes |
| Temperature assembly design | DIN-style |
| Thermowell type | Barstock |
| Thermowell form (according to DIN 43772) | Form 4F |
| Sensor mounting | Flange |
| Measuring insert replaceable | Yes |
| Measuring insert type | Replaceable spring loaded mineral isolated measuring insert OPTITEMP TR 100 |
| RTD element type | 1 x Pt100, 2 x Pt100 |
| RTD configuration | 3-wire, 4-wire |
| Tolerance class (according to DIN EN 60751) | 1/10 DIN B, A, AA, B |
| Temperature sensor connection type option | Ceramic terminal block, Flying wires, Temperature transmitter |
| Thermowell diameters | Ø24 mm / 0.94 |
| Thermowell tip design | Tapered |
| Mounting point | Pipe |
| Measuring point | Pipe |
| Process temperature |
-200…+600°C/ -327…+1112°F |
| Wetted parts | Non-alloy carbon steel (1.0460/AISI 1022M), Austenitic stainless steel (1.4404/316L), Austenitic stainless steel (1.4571/316Ti), Alloy carbon steel (1.7335/AISI A182) |
| Flange connections |
EN (1092-1): DN25…50 ASME (B 16.5): 1…1 1/2 |
| Pressure ratings |
EN (1092-1): PN40 ASME (B 16.5): Cl 300# |
| Certificates/Approvals Ex | ATEX, IECEx |
| Certificates/Approvals Nuclear | Nuclear qualification on request (e.g. acc. to ASME III, RCC-M/E, etc.) |
