Datasheet summary
iTherm-Moduline-TU401
Engineering summary from PDF text extraction for iTherm-Moduline-TU401. Verify every value with the OEM datasheet.
Summary
Product identification
The iTHERM ModuLine TM401 is a resistance thermometer designed for hygienic and aseptic applications, primarily in the Food & Beverages and Life Sciences industries. It features basic technology with a fixed, non-replaceable insert, suitable for use in non-hazardous areas.
Operating limits
- Measuring range: –50 to +200 °C (–58 to +392 °F)
- Pressure range: up to 50 bar (725 psi)
- Protection class: up to IP69K
Input
- Measured variable: Temperature (temperature-linear transmission behavior)
- Sensor type: Pt100 thin-film
- Measuring range: –50 to +200 °C (–58 to +392 °F)
Output
The device supports various output signals and communication protocols via Endress+Hauser iTEMP temperature transmitters:
- 4 to 20 mA analog output, HART® (optional HART® SIL transmitter)
- PROFINET® over Ethernet-APL
- IO-Link®
Performance characteristics
Maximum measurement error
- RTD resistance thermometer: Corresponds to IEC 60751.
- Class B: ± (0.3 + 0.005 · |t|) °C
- Class A: ± (0.15 + 0.002 · |t|) °C
- Class AA: ± (0.1 + 0.0017 · |t|) °C
- where |t| is the absolute temperature value in °C.
Temperature ranges for sensors
| Sensor type | Operating temperature range (Class B) | Operating temperature range (Class A) | Operating temperature range (Class AA) |
|---|---|---|---|
| Pt100 (TF) Basic | –50 to +200 °C | –50 to +200 °C | –30 to +200 °C |
| Pt100 (TF) Standard | –50 to +400 °C | –50 to +400 °C | –30 to +250 °C |
| Pt100 (TF) iTHERM QuickSens | –50 to +200 °C | –50 to +200 °C | –30 to +200 °C |
| Pt100 (TF) iTHERM StrongSens | –50 to +500 °C | –50 to +500 °C | –30 to +300 °C |
| Pt100 (WW) | –200 to +600 °C | –200 to +600 °C | –100 to +450 °C |
Self-heating
Self-heating error is negligible when using an Endress+Hauser iTEMP temperature transmitter.
Response time (without transmitter)
Tests performed in water at 0.4 m/s with a 10 K temperature change.
| Sensor tip shape | Response time t50 | Response time t90 |
|---|---|---|
| ⌀6 mm (¹⁄₄ in), Straight | 5 s | 11 s |
| Reduced 4.5 mm (0.18 in) x 18 mm (0.71 in) | 3.5 s | 9 s |
| ⌀8 mm (0.31 in), Reduced 5.3 mm (0.21 in) x 20 mm (0.79 in) | 5 s | 10.5 s |
Insulation resistance
≥ 100 MΩ at ambient temperature, measured between terminals and outer jacket with a minimum voltage of 100 VDC.
Installation
- Orientation: No restrictions, but self-draining must be guaranteed.
- Immersion length: Recommended minimum immersion lengths depend on sensor type:
- TrustSens or StrongSens: 30 mm (1.18 in)
- QuickSens: 25 mm (0.98 in)
- Wire wound sensor: 45 mm (1.77 in)
- Standard thin-film sensor: 35 mm (1.38 in)
Environment
Ambient temperature range
- Terminal head without transmitter: Depends on terminal head and cable gland/connector.
- Terminal head with transmitter: –40 to +85 °C (–40 to +185 °F)
- Terminal head with transmitter and display: –20 to +70 °C (–4 to +158 °F)
Humidity
- Condensation permitted as per IEC 60 068-2-33
- Max. relative humidity: 95% as per IEC 60068-2-30 (with Endress+Hauser iTEMP head transmitters)
Degree of protection
- Max. IP69K, depending on design (terminal head, connector, etc.)
Process
Process temperature range
- Maximum –50 to +200 °C (–58 to +392 °F)
Thermal shock
- Resistance in CIP/SIP process (temperature increase within 2 seconds from +5 to +130 °C (+41 to +266 °F)).
Process pressure range
- Maximum possible process pressure depends on thermometer design, process connection, and process temperature. Consult the 'Process connection' section for details.
Medium - state of aggregation
- Gaseous or liquid (including high viscosity media like yogurt).
Mechanical construction
Design, dimensions
Dimensions are provided in mm (in). Various versions exist, including those with different process connections (M24x1.5, NPT ½”) and tip shapes (straight, reduced).
Weight
- 0.5 to 2.5 kg (1 to 5.5 lbs) for standard options.
Material
- AISI 316L (corresponds to 1.4404 or 1.4435): Recommended max. temperature for continuous use in air is 650 °C (1202 °F), with limited use up to 800 °C (1472 °F) under specific conditions. This material offers high corrosion resistance, especially in chlorine-based and acidic, non-oxidizing atmospheres due to molybdenum content.
Surface roughness
- Standard surface, mechanically polished: Ra ≤ 0.76 µm (30 µin)
- Mechanically polished, buffed: Ra ≤ 0.38 µm (15 µin) (Not compliant with ASME BPE)
Terminal heads
Various terminal heads are available, including TA30A, TA30R, and TA30S, offering different degrees of protection, temperature ranges, materials, and cable entry options.
Process connections
- Sanitary connection according to DIN 11851: Available in DN25, DN32, DN40, DN50 sizes. Pressure ratings vary from 40 bar (580 psi) for smaller sizes down to 25 bar (363 psi) for DN50. Certified to 3-A and EHEDG standards when used with specific sealing rings.
- Metal sealing system: Connections available with M12x1.5, G3/8", and G½" threads. Thermowell diameters of 6 mm (¼ in) or 8 mm (0.31 in) are supported, with a maximum pressure of 16 bar (232 psi).
- Clamp according to ISO 2852: Specific dimensions provided, including tolerances and sealing characteristics.
Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.