Threaded temperature probe
Description
The model TF37 threaded temperature probe, which is highly vibration-resistant, is used in applications with strong vibrations and where, due to high medium temperature, a decoupling of the electrical connection point and the measuring location is necessary.
A thermowell made of brass or stainless steel prevents the measuring element from coming into contact with the medium, thus enabling direct installation of the instrument in the process. The fixed mounting thread guarantees quick and easy installation in the process.
The transition point from the thermowell to the connection lead is dust-tight and waterproof (IP65 or IP66/IP67).
Special features
- Measuring ranges from -50 ... +260 °C [-58 ... +500 °F]
- Customer-specific versions
- Very high vibration resistance
- Connection lead made of PVC, silicone, PTFE
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- Measuring element1xPt1000 / 2-wire / class F 0.3, EN 60751
- Thermowell materialBrass
- Thermowell diameter [F1]6,0 mm
- Process connection [d6 o. E]Male thread G1/4B
- Insertion length [L1] o. [U1]—
- Connecting leadIndividually and common silicon insulated;
- Lead length [W]—
- Electrical connectionBare wires
- PackagingCovering box
Finish your configuration
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| Model | TF37 |
| Product family | TF |
| Subcategory | Threaded temperature probe |
| Temperature ranges | −50…+260 °C · −30…+130 °C |
| Process connection | G ¼ BG ⅜ BG ½ BM14 x 1.5¼ NPT½ NPT7/16" - 20 UNF SAE, O-ring BOSS FPM/FKMG1/4BG3/8BG1/2B1/4NPT1/2NPT |
| Process temperature | −50…+260 °C |
| Electrical connection | Stripped wires, End splices, Customer-specific connectors |
| Probe material | brass, stainless steel |
| Thermowell material | Brass, Stainless steel |
| Ambient temperature | −40…+85 °C |
| IP rating | IP65 |
| Certifications | RoHSCE |
| Sensor type | Pt100, Pt1000, NTC |
| Sensor class | F 0.3 |
| Probe length | 250 mm |
| Probe diameter | 4 mm |
| Thermowell | Yes |
| Datasheet languages | EN |
| Measuring range | |
|---|---|
| Pt1000, class F 0.3 per IEC/EN 60751 | -50 …+260 °C [-58 ...+500 °F] |
| Pt100, class F 0.3 per IEC/EN 60751 | -50 …+260 °C [-58 ...+500 °F] |
| NTC 10 kΩ, B (25/85) = 3,976 | -30 …+130 °C [-22 ...+266 °F] |
| NTC 5 kΩ, B (25/85) = 3,976 | -30 …+130 °C [-22 ...+266 °F] |
| NTC 2.5 kΩ, B (20/85) = 3,541 | -30 …+130 °C [-22 ...+266 °F] |
| NTC 2.252 kΩ, B (25/85) = 3,974 | -30 …+130 °C [-22 ...+266 °F] |
| → Other measuring elements on request | |
| Connection method | 2-wire connection |
| Possible restrictions | Depending on the choice of insulation material of the connection lead, there may be restrictions in the permissible measuring range |
| PVC | -20 ...+105 °C [-4 ...+221 °F] |
| Silicone | -50 ...+200 °C [-58 ...+392 °F] |
| PTFE | -50 ...+260 °C [-58 ...+500 °F] |
| Influence of lead resistance | With the 2-wire connection, the lead resistance of the connection lead affects the measured value and must be taken into consideration. 0.162 Ω/m (guideline value for copper cable with cross-section 0.22 mm²) |
|---|---|
| Reference conditions | |
| Ambient temperature | 15 ... 25 °C [59 ... 77 °F] |
| Atmospheric pressure | 860 ... 1,060 mbar [12.47 ... 15.37 psi] |
| Humidity | 50 ... 70 %relative humidity |
| Condensation | Condensation permissible |
| Mounting position | As required |
| Thermowell | |
|---|---|
| Thermowell diameter | ■ 4 mm[0.16 in] ■ 6 mm[0.24 in] ■ 8 mm[0.31 in] → Further diameters on request |
| Mounting thread | ■ G¼B ■ G⅜B ■ G½B ■ M14 x 1.5 ■ ¼NPT ■ ½NPT ■ 7/16" - 20 UNF SAE, O-ring BOSS FPM/FKM |
| → Other threads on request | |
| Insertion length | ■ 25 mm[0.98 in] ■ 30 mm[1.18 in] ■ 35 mm[1.38 in] ■ 40 mm[1.57 in] ■ 45 mm[1.77 in] ■ 50 mm[1.97 in] ■ 60 mm[2.36 in] |
| → Other lengths on request, max. insertion length 250 mm[9.84 in] |
| Material (wetted) | ■ Brass ■ Stainless steel |
|---|
View all (9)
| Dynamic behaviour per IEC/EN 60751 | ||
|---|---|---|
| Response time | The response time is essentially influenced by the thermowell used (dimen - sions, material), the heat transfer to the measuring element and the flow rate of the medium | |
| Due to the design of the model TF37, there is optimum heat transfer from the medium to the measuring element | ||
| Thermowell made of brass (for Ø6mm[0.24 in]) | t0.5: 2.2 s | |
| t0.9: 6 s | ||
| Thermowell made of stainless steel (forØ6mm in]) | t0.5: 2.5 s | |
| [0.24 | t0.9: 6.5 s |
| Connection type | ■ Stripped wires ■ End splices ■ Customer-specific connectors are available on request |
|---|---|
| Insulation material of the connection lead | ■ PVC ■ Silicone ■ PTFE |
| Ingress protection of the transition between thermowell and connection lead (IP code) | |
| PVC insulation material | IP65 |
| Silicone insulation material | IP66/IP67 |
| PTFE insulation material | IP65 |
| Connection lead | 500 ... 10,000 mm[19.7 ... 393.7 in], in 500 mm[19.7 in] increments |
| → Other lengths on request |
| Insulation material | PVC | Silicone | PTFE | |
|---|---|---|---|---|
| Highest working temperature | 105 °C [221 °F] | 200 °C [392 °F] | 260 °C [500 °F] | |
| Flammability | Self-extinguishing | Self-extinguishing | Not flammable | |
| Water absorption | Low | Low | None | |
| Suitability for steam | Good | Limited | Very good | |
| Chemical resistance against | Dilute bases | Yes | Yes | Yes |
| Dilute acids | Yes | Yes | Yes | |
| Alcohol | Yes | Yes | Yes | |
| Petrol | Yes | No | Yes | |
| Benzene | No | No | Yes | |
| Mineral oil | Yes | Yes | Yes |
| Storage temperature range | -40 …+85 °C [-40 …+185 °F] |
|---|---|
| Ambient temperature range | The max. allowable ambient temperature range depends upon the insulation material of the connection lead and on the connector fitted, as required. |
| Static operating pressure | Max. 50 bar [725 psi] |
| Vibration resistance per IEC 60068-2-6:2007 | Depending on the design, mounting situation, medium and temperature To 30g |
| Shock resistance per IEC 60068-2-27:2007 | Depending on the design, mounting situation, medium and temperature To 500g |
| Ingress protection (IP code) per IEC 60529 | → For ingress protection, see table 'Electrical connection' |
| Logo | Description | Region |
|---|---|---|
| EU declaration of conformity RoHS directive | European Union |
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