Threaded temperature probe
Description
The model TF35 threaded thermometer is used for temperature measurement of liquid and gaseous media in the range -50 ... +200 °C [-58 ... +392 °F].
The integrated thermowell with threaded connection enables direct installation into the process. Depending on the requirements, the thermowell can be selected from brass or stainless steel. By default, the TF35 thermometer can be used for pressures up to 50 bar [725 psi]. The directly mounted coupler connector ensures simple commissioning of the thermometer.
∙ 02/2026
Fig. left: AMP Junior Power Timer connector Fig. right: Circular connector M12 x 1
Fig. left: Deutsch instrument connector DT04-2P Fig. right: Rectangular connector EN 175301-803
Special features
- Measuring ranges from -50 ... +200°C [-58 ... +392°F]
- Very high vibration resistance
- Compact design
- Electrical connection via plug connection
Build a TF35 for your task
The article number is assembled automatically. If unsure — ask an engineer; we'll match the line's parameters.
- Measuring element1xPt100 / 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]—
- Electrical connection—
Finish your configuration
Select every option to submit the request.
| Model | TF35 |
| Product family | TF |
| Subcategory | Threaded temperature probe |
| Temperature ranges | −50…+200 °C · −30…+130 °C |
| Process connection | M14 x 1.57/16" - 20 UNF SAE, O-ring Boss FPM/FKMG ¼ BG ⅜ BG ½ B¼ NPT½ NPT |
| Process temperature | −50…+200 °C |
| Electrical connection | AMP Junior Power Timer connector, FASTON blade terminal, Deutsch DT04-2P, M12 x 1 circular connector, Rectangular connector EN 175301-803 |
| Probe material | Brass, Stainless steel |
| Thermowell material | Brass, Stainless steel |
| Ambient temperature | −40…+130 °C |
| IP rating | IP66/IP67 |
| Certifications | RoHSCE |
| Sensor type | Pt1000, Pt100, NTC |
| Sensor class | F 0.3 |
| Probe diameter | 6 mm |
| Thermowell | Yes |
| Datasheet languages | EN, DE |
| Measuring element | Version | Measuring range |
|---|---|---|
| Type of measuring element | Pt1000, class F 0.3 per IEC/EN 60751 | -50 …+200 °C [-58 ...+392 °F] |
| Pt100, class F 0.3 per IEC/EN 60751 | -50 …+200 °C [-58 ...+392 °F] | |
| NTC 10 kΩ, B(25/85) = 3976 | -30 …+130 °C [-22 ...+266 °F] | |
| NTC 5 kΩ, B(25/85) = 3976 | -30 …+130 °C [-22 ...+266 °F] | |
| NTC 2.5 kΩ, B(20/85) = 3541 | -30 …+130 °C [-22 ...+266 °F] | |
| NTC 2.252 kΩ, B(25/85) = 3974 | -30 …+130 °C [-22 ...+266 °F] | |
| → Other measuring elements on request | ||
| Connection method | 2-wire connection |
| 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 0.22mm 2 ) Example Pt100: 0.42 °C/m | |
| Reference conditions | |
| Ambient temperature | 15 ... 25 °C [59 ... 77 °F] |
| Air pressure | 860 ... 1,060 mbar [12.47 ... 15.37 psi] |
| Humidity | 50 ... 70 %relative humidity |
| Condensation | Condensation permissible |
| Mounting position | As required |
| Process connection | |
|---|---|
| Thermowell / Protection tube | |
| Thermowell diameter | ■ 4 mm[0.16 in] ■ 6 mm[0.24 in] ■ 8 mm[0.31 in] → Other diameters on request |
| Mounting thread | ■ G¼B ■ G⅜B ■ G½B ■ M14 x 1.5 ■ ¼NPT ■ ½NPT ■ 7/16" - 20 UNF SAE, O-ring Boss FPM/FKM |
| 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 |
| Material (wetted) | ■ Brass ■ Stainless steel |
| Dynamic behaviour per IEC/EN 60751 | ||
|---|---|---|
| Response time | The response time is essentially influenced by the thermowell used (dimensions, material), the heat transfer to the measuring element and the flow rate of the medium | |
| Due to the design of the model TF35, there is optimum heat transfer from the medium to the measuring element | ||
| Thermowell made of brass (for Ø6mm[0.24 in]) | t 0.5 : 2.2 s | |
| t 0.9 : 6 s | ||
| Thermowell made of stainless steel (forØ6mm [0.24 in]) | t 0.5 : 2.5 s | |
| t 0.9 : 6.5 s |
View all (9)
| Connection type | IP code 1) | Ambient temperature range |
|---|---|---|
| AMP Junior Power Timer connector | IP66, IP67 | -40 ...+130 °C [-40 ...+266 °F] |
| FASTON blade terminal 6.3 x 0.8mm | IP52 | -40 ...+130 °C [-40 ...+266 °F] |
| Deutsch instrument connector DT04-2P | IP66, IP67, IP69K | -40 ...+130 °C [-40 ...+266 °F] |
| Circular connector M12 x 1 | IP66, IP67 | -40 ...+90 °C [-40 ...+194 °F] |
| Rectangular connector EN 175301-803 | IP65 | -40 ...+100 °C [-40 ...+212 °F] |
| Ambient temperature range | Due to short installation length there is a risk that the temperature at the connector will rise up to an inadmissibly high value.This absolutely must be taken into account when designing the measuring location. The temperature at the connector must not exceed the mentioned temperature range. |
|---|---|
| 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 30 g |
| Shock resistance per IEC 60068-2-27:2007 | Depending on the design, mounting situation, medium and temperature To 500 g |
| Ingress protection (IP code) per IEC 60529 | → For ingress protection, see table 'Electrical connection' |
| Logo | Description | Country |
|---|---|---|
| EU declaration of conformity RoHS directive | European Union |
| Logo | Description | Country |
|---|---|---|
| UL 1) Component certification | USA and Canada |
| Description | Order number |
|---|---|
| Mating connector | |
| Angled socket DIN 175301-803 A | 11427567 |
| Circular connector M12 x 1, 4-pin, straight | 2421262 |
| Circular connector M12 x 1, 4-pin, angled | 2421270 |
| AMP Junior Power Timer connector | 14039250 |
| Deutsch instrument connector DT04-2P | 14050063 |
Couldn't find the answer in the documentation? An engineer will reply within a business day.
Ask an engineer →103 standard articles of family TF
If you know the code — pick directly. If not — use the configurator in mode “01”.
