·Temperature
STT170
The Honeywell STT170 series (STT 3000 family) of programmable temperature transmitters delivers cost-effective, accurate temperature monitoring versus direct-wired sensor points. Models STT171, STT173, STT17H, and STT17F cover 4–20 mA, HART, and FOUNDATION™ Fieldbus outputs from a DIN form B headmount housing, with automatic linearization, NAMUR NE43 sensor-error response, and PC-based configuration via the STT17C tool.
Key Benefits
- 01Increased accuracy, safety, and reliability versus direct-wired temperature sensors
- 02Reduced wiring costs through loop-powered transmitter architecture
- 03Automatic linearization with user-settable upper and lower range values
- 04Programmable high/low limit alarms trigger on sensor failure
- 05Galvanic isolation on STT173/17H/17F improves noise immunity in harsh plants
Technical Features
- 01STT171: Analog 4–20 mA, RTD or Ohm input, DIN form B headmount
- 02STT173: Analog 4–20 mA, RTD / T-C / Ohm / mV input, galvanic isolation
- 03STT17H: HART / 4–20 mA, single or dual (difference/average) sensor input, HART Multidrop capable
- 04STT17F: FOUNDATION™ Fieldbus, single or dual (difference/average/redundant), FISCO certified, Basic or LAS capability, 2 AI + 1 PID function blocks
- 05Input types: RTD (Pt100, Ni100), Thermocouple, mV, Ohm
- 06NAMUR NE43 compliant sensor-error response
- 07Galvanic isolation (STT173, STT17H, STT17F)
- 08Configuration via STT17C PC tool or HART field communicator
- 09DIN form B headmount housing for direct sensor mounting
- 10Automatic temperature linearization for the user-defined range
Applications
- Cost-effective replacement of direct-wired temperature monitoring
- General process and utility temperature monitoring
- HART Multidrop installations (STT17H)
- FOUNDATION Fieldbus segments with redundant sensors (STT17F)
- Retrofit projects consolidating RTD/TC/mV/Ohm signals onto a single transmitter
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