Endress+Hauser DTT35-A1A111DB2BAB | TS1 Modular RTD Temp Assembly, Pt100, 4-20mA HART
Endress+Hauser DTT35-A1A111DB2BAB iTHERM TS1 modular temperature assembly. Pt100 RTD, 4-20mA HART transmitter, G1/2" PN40 process connection, 100mm immersion, IP67.
Product Overview
The Endress+Hauser DTT35-A1A111DB2BAB is a modular industrial temperature assembly from the iTHERM TS1 (DTT35) series, combining a Pt100 RTD sensor with an integral 4-20mA HART temperature transmitter in a form B terminal head. It features a G1/2" PN40 process connection, 100 mm immersion length, and is designed for direct installation in pipes or tanks for accurate process temperature monitoring in chemical, power, and general industries.
Technical Specifications (Measurement & Electrical)
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Parameter
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Specification
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Model / Order Code
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DTT35-A1A111DB2BAB
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Product Family
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iTHERM TS1 (DTT35 — Modular Temperature Assembly)
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Sensor Type
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Pt100 RTD (IEC 60751 Class A, 3- or 4-wire — typically 4-wire)
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Measuring Range
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-50 … +200 °C (standard config; wider range possible with different stem/thermowell)
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Transmitter
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4…20 mA with HART (Integral in Head)
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Accuracy (Sensor + Xmtr)
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≤ ±0.1 % of span + sensor tolerance
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Power Supply
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11 … 42 V DC (Loop Powered)
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Communication
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HART 5/6/7 (Superimposed on 4-20mA)
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Technical Specifications (Mechanical & Process)
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Parameter
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Specification
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Process Connection
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G1/2" Male Thread, PN 40 (ISO 228-1)
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Thermowell Type
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Solid Drilled Barstock (typical for TS1)
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Immersion Length (U)
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100 mm (typical for code "...111..." — verify full code)
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Stem Diameter (Sensor Ø)
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6 mm or 8 mm (standard for TS1)
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Head Type
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Form B Aluminum / Plastic (DIN 43764 / EN 50446)
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Process Temperature (Max)
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-40 … +400 °C (depends on thermowell material & lagging extension)
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Max. Process Pressure
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Up to PN 40 (250 bar @ 20°C, size-dependent)
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Protection Rating
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IP66 / IP67 (with proper head seal)
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Wetted Parts Material
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316L (1.4404) Stainless Steel (standard)
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Key Features
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All-in-One Assembly: Pre-assembled sensor, thermowell, and head transmitter reduce installation time and potential leak points vs. separate components.
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HART Smart Communication: Enables remote configuration, trimming, and sensor diagnostics via the 4-20mA loop — no need to remove the head cover.
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Modular Flexibility: TS1 platform allows field replacement of the insert (sensor + transmitter) without removing the thermowell from the process.
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High Pressure Rating: PN40 (or higher with weld-in thermowell) suitable for process, utility, and skid-mounted applications.
Applications
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Chemical & Petrochemical: Reactor and line temperature monitoring in process plants.
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Power & Energy: Feedwater, condensate, and lube oil temperature in turbine/boiler auxiliaries.
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HVAC & Utilities: Hot/chilled water temperature in building management systems.
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Skid & OEM Equipment: Compact temperature feedback for package units (heat exchangers, CIP skids).
Note: The exact immersion length, thermowell style (straight/tapered), lagging extension, and head material are defined by the complete order code suffix. The model shown represents a typical G1/2" PN40, 100mm U, Pt100 + HART transmitter configuration commonly quoted as DTT35-A1A111DB2BAB.
About ACH
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
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Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
