Description
ABB TTH300-E1-H Temperature Transmitter – Head-mount, HART-enabled signal conversion for RTD/TC sensors
The ABB TTH300-E1-H is a compact, head-mounted temperature transmitter built for reliable 4–20 mA/HART signal conversion from RTDs, thermocouples, and mV/Ω inputs. From my experience, it’s a solid pick when you want a universal, loop-powered transmitter that slots straight into a DIN Form B sensor head and just works—whether you’re upgrading older probes in a CIP skid or standardizing across a plant utility network.
Our Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery: 1 week when in stock; no more than one month at the latest
- Payment: 50% advance payment; full payment prior to delivery
- Express options: FedEx, UPS, DHL
Key Features
- Universal sensor input – Accepts common RTDs (Pt100/500/1000), thermocouples (B, E, J, K, N, R, S, T), plus mV and resistance. Ideal for mixed installations.
- 4–20 mA with HART – Standard two-wire loop power with HART communication for quick configuration and advanced diagnostics.
- Head-mount (DIN Form B) – The “-H” variant fits directly in sensor heads, keeping wiring short and noise low.
- Robust measurement performance – Stable accuracy and drift behavior in most industrial environments; supports 2/3/4‑wire RTDs and sensor lead compensation.
- Signal safety – Configurable upscale/downscale fail-safe on sensor break, which helps operators spot a bad probe fast.
- Device diagnostics – HART status bits and error flags simplify troubleshooting during commissioning and maintenance.
- EMC‑hardened design – Typically tolerant to industrial electrical noise when grounded and wired per ABB guidelines.
One thing I appreciate is how quickly it drops into existing heads on heat exchangers or tank loops. You might notice that configuration via HART handhelds or PC tools (EDD/DTM) takes minutes, not hours. A maintenance lead at a beverage plant told us they swapped a dozen legacy units for TTH300s during a single shift and cut nuisance drift alarms the following week.
Technical Specifications
| Brand / Model | ABB TTH300-E1-H (Head-mount temperature transmitter) |
| HS Code | 9025.80 (Instruments for measuring/checking temperature – other) |
| Power Requirements | Two‑wire loop powered, typically 10.5–36 VDC depending on load (4–20 mA + HART) |
| Operating Temperature | -40 to +85 °C for electronics is common on this series (application dependent) |
| Signal Input / Output | Input: RTD (Pt100/500/1000, 2/3/4‑wire), TC (B, E, J, K, N, R, S, T), mV/Ω Output: 4–20 mA with HART communication |
| Communication Interfaces | HART via the 4–20 mA loop; supports EDD/DTM-based configuration and handhelds |
| Installation Method | Head-mount (DIN Form B); fits standard sensor heads and connection blocks |
| Dimensions & Weight | Compact puck for DIN Form B heads; typically around 45 mm diameter form factor |
Where it typically fits
- Food & beverage CIP/SIP loops, pasteurizers, and jacketed vessels
- Skid packages (heaters, chillers, exchangers) needing HART-enabled feedback
- Utilities: hot water networks, steam tracing points, HVAC plant rooms
- OEM equipment upgrades where a Form B head is already present
Related or Supporting Products
- ABB TTH200 – Economical head-mount transmitter with HART; fewer advanced diagnostics than TTH300 in many cases.
- ABB TTR300 – Rail-mount version of the same platform; good when you want the transmitter in a cabinet rather than in the head.
- ABB TTF300 – Field-mount enclosure for harsh areas; same measurement concept in a rugged housing.
- ABB TSP-series RTD sensors – Pair with Pt100 probes for stable, repeatable measurements; add TSW-series thermowells for process protection and easy removal.
- HART USB Modem – For PC-based configuration with DTM/EDD tools and quick cloning of device setups.
Installation & Maintenance
- Mounting: Install in a DIN Form B head; secure screws evenly. Keep the transmitter clear of direct process heat with a suitable neck length.
- Wiring: Use twisted-pair, shielded cable for the loop. Ground the shield at one point only. Observe correct RTD lead compensation (2/3/4‑wire).
- Cabinet/Environment: For panel installations, consider the rail‑mount TTR300. Ensure ventilation and avoid high EMI sources where possible.
- Configuration: Set sensor type, range, units, damping, and fail mode via HART. Save a copy of the configuration for maintenance.
- Safety: De‑energize the loop before changing sensor wiring. Follow local hazardous area rules if the application requires it.
- Routine care: Verify calibration annually or biannually depending on criticality. Check terminal tightness, inspect cable glands, and keep the head dry. Update device descriptions/DTMs when newer HART packages are released.
Quality & Certifications
ABB process transmitters are typically delivered with CE conformity and RoHS compliance, and the TTH300 platform is HART‑registered. SIL capability and Ex approvals (e.g., ATEX/IECEx/FM/CSA) are available on specific versions. If you need a particular certificate set, share the required markings and we’ll match the exact order code.
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