Datasheet summary
RTD TH11, TH12
Engineering summary from PDF text extraction for RTD TH11, TH12. Verify every value with the OEM datasheet.
Summary
Product identification
RTD TH11 and TH12 general purpose RTD with terminal head or conductor extension lead wires for process and laboratory applications.
Areas of application
The TH11 and TH12 temperature sensors are RTDs designed for use in the process industry or factory automation. They are made up of a measurement probe with an RTD, insulation, and sheath.
Applications include:
- Heat exchangers
- Power & recovery area
- Carbon regeneration furnace
- Dryers
- Flue Gas
- Compressor stations
- Process reactors
Measuring principle
These resistance thermometers use a Pt100 temperature sensor according to IEC 60751. The sensor has a resistance of 100 Ω at 0 °C (32 °F) and a temperature coefficient of α = 0.003851 °C⁻¹.
Two types of platinum resistance thermometers are available:
- Wire wound (WW): Platinum wire in a ceramic support, sealed with a protective layer. Suitable for temperatures up to 600 °C (1112 °F). Relatively large and sensitive to vibrations.
- Thin film (TF): Thin platinum layer on a ceramic substrate. Smaller size and better vibration resistance. Tight limit values of tolerance category A as per IEC 60751 are observable up to approximately 300 °C (572 °F). Generally used for temperatures below 400 °C (932 °F).
Equipment architecture
The single element RTDs are designed for process and laboratory applications within temperature ranges of -200 to 600 °C (-328 to 1112 °F).
- Low range thin film RTDs: -50 to 200 °C (-58 to 392 °F). Constructed with silver plated copper internal leads and PTFE wire insulation.
- High range RTDs: -200 to 600 °C (-328 to 1112 °F). Constructed with nickel internal leads inside swaged MgO insulated cable.
Measurement range
- Low temperature range (thin film): TH11/TH12 models can cover -50 to 200 °C (-58 to 392 °F).
- High temperature range (wire wound): TH11/TH12 models can cover -200 to 600 °C (-328 to 1112 °F).
Transmitter specifications
iTEMP® TMT18x
- Housing material: PC
- Potting material: PUR
- Terminals: Cable up to max. 2.5 mm² / 16 AWG or with wire end ferrules.
- Degree of protection: NEMA Type 4x Encl.
iTEMP® TMT8x
- Housing material: PC (RoHS-compliant)
- Potting material: PU
- Terminals: Screw terminals (up to 2.5 mm²/16 AWG) or spring terminals (0.25 mm² to 0.75 mm²/24 AWG to 18 AWG).
- Degree of protection: NEMA Type 4x Encl.
iTEMP® TMT162 field transmitter
- Housing material: Die-cast aluminum (AlSi10Mg/AlSi12) with powder coating.
- Cable entry: 2 x ½" NPT.
- Degree of protection: NEMA Type 4x Encl. (IP67).
- Display: Brilliant blue backlit display.
iTEMP® TMT162 (hygienic applications)
- Housing material: Stainless steel 1.4435 (AISI 316L).
- Cable entry: 2 x ½" NPT.
- Degree of protection: IP69K.
- Display: Brilliant blue backlit display.
iTEMP® HART® TMT142
- Housing material: Die-cast aluminum (AlSi10Mg/AlSi12) with powder coating.
- Cable entry: 3 x ½" NPT.
- Degree of protection: NEMA Type 4x Encl. (IP67).
- Display: Brilliant blue backlit display.
Housing
TA30A
- Degree of protection: IP66/68.
- Temperature range: -50 °C to +150 °C (-58 °F to +302 °F) without cable gland.
- Material: Aluminum, polyester powder coated.
- Cable entry: ½" NPT and M20x1.5.
- Weight: 420 g (14.81 oz).
TA30H
- Flameproof (XP) version, explosion-protected.
- Degree of protection: IP66/68.
- Temperature range: -50 °C to +150 °C (-58 °F to +302 °F) for rubber seal without cable gland.
- Material: Aluminum, polyester powder coated.
- Cable entry glands: ½" NPT, ¾" NPT, M20x1.5.
- Weight: 860 g (30.33 oz).
Terminal head Al
- Material: Die-cast Aluminium.
- Sensor connection: ½" NPT Female.
- Cable entry: ½" NPT or ¾" NPT Female.
- Degree of protection: NEMA Type 4x Encl. (IP 66/68).
Terminal head plastic
- Material: Polypropylene, FDA compliant.
- Sensor connection: ½" NPT Female.
- Cable entry: ½" NPT or ¾" NPT Female.
- Degree of protection: NEMA Type 4x Encl.
Terminal head stainless steel, TA20J style
- Material: Deep drawn stainless steel AISI 316L SS (hygienic design).
- Sensor connection: ½" NPT female.
- Cable entry: ½" NPT female.
- Degree of protection: NEMA Type 4x Encl. (IP66).
Compression fitting
- One time adjustable fitting: 316 Stainless Steel.
- Re-adjustable fitting: 316 Stainless Steel with TFE ferrule.
Performance characteristics
Response time
| Sheath Ø (T) | High temp. range | Low temp. range |
|---|---|---|
| 1/16" | 2 s | 3 s |
| 1/8" | 2 s | 7 s |
| 3/16" | 3 s | 9 s |
| ¼" | not available | 6 s |
Maximum measured error
RTD corresponding to IEC 60751. See the official PDF for exact tabulated values.
Transmitter long-term stability
- ≤ 0.1 °C/year (≤ 0.18 °F / year) or ≤ 0.05% / year.
Insulation resistance
- ≥100 MΩ at 25 °C (77 °F)
- ≥10 MΩ at 300 °C (572 °F)
Sensor element tolerance
| Sensor element | Class | Temperature range | Max. Tolerances (°C) |
|---|---|---|---|
| Thin film (TF) | A | -50 °C to +200 °C (-58 °F to +392 °F) | ± (0.15 + 0.002 · |t|)¹ |
| B | -50 °C to +200 °C (-58 °F to +392 °F) | ± (0.3 + 0.005 · |t|)¹ | |
| Wire wound (WW) | A | -100 °C to +450 °C (-148 °F to +842 °F) | ± (0.15 + 0.002 · |t|)¹ |
| B | -200 °C to +600 °C (-328 °F to +1112 °F) | ± (0.3 + 0.005 · |t|)¹ |
¹ |t| = absolute value °C.
Measurement accuracy with transmitters
| Transmitter | Measurement accuracy | Sensor current | Galvanic isolation (input/output) |
|---|---|---|---|
| TMT82 HART® / TMT84 PA / TMT85 FF | ± typ. 0.25 °C (0.45 °F) | I ≤ 0.3 mA | U = 2 kV AC |
| TMT180 Pt100 PCP / TMT181 multifunctional PCP | 0.2 °C (0.36 °F), optional | I ≤ 0.6 mA | - |
| TMT182 HART® | 0.1 °C (0.18 °F) or 0.08%¹ | I ≤ 0.2 mA | U = 2 kV AC |
| TMT162 HART® Field transmitter | 0.5 °C (0.9 °F) or 0.08%¹ | I ≤ 0.3 mA | U = 2 kV AC |
| TMT142 | ≤ 0.105 °C (0.19 °F) |
¹ % is related to the adjusted measurement range (the larger value applies).
Wire specifications
- TH11: 24AWG, 19 strand silver plated copper with 0.010” PTFE extruded outer. 1/8” sensors have 28AWG seven strand wires with the same extrusion.
- TH12: 24AWG, seven strand silver plated copper with 0.010” PTFE then 0.015” FEP outer jacket. 1/8” sensors are 28AWG, seven strand SPC, 0.010” PTFE, 0.015” FEP white outer jacket. Flex armor is 0.272” nominal OD, 304SS 0.010” thick, square lock style.
- Maximum temperature for extension cable: 200 °C (392 °F).
Installation conditions
Environmental conditions
Ambient temperature
- Without mounted head transmitter: Depends on the terminal head used and the cable gland or fieldbus connector.
- With mounted head transmitter: -40 to 85 °C (-40 to 185 °F).
- With mounted head transmitter and display: -20 to 70 °C (-4 to 158 °F).
Shock and vibration resistance
- 4G / 2 to 150 Hz as per IEC 60068-2-6.
Process conditions
Process pressure limits
See the official PDF for exact tabulated values and p/T load curves.
Mechanical construction
Material
- Wetted parts: 316 SS.
Immersion length
- TH11: 4", 6", 9", 12".
- TH12: 6", 12", 18", 24", 48", 72", 120".
Sheath diameter
- 1/8 in 316 SS
- 3/16 in 316 SS
- ¼ in 316 SS
- 3/8 in (reduced to 3/16 in) 316 SS
Certificates and approvals
- CE Mark
- UL recognized components to UL 3111-1 (iTEMP® Series).
- Complies with IEC 60529 (IP-Code), IEC 61010, ASTM E644, NEMA - ANSI / NEMA 250, IEC 60571.
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.