Honeywell STT250 Smart temperature transmitters are HART enabled Temperature Transmitters aimed towards the monitoring and control of critical process temperature applications. In several process heating applications, the Honeywell STT250 is employed to control process temperatures leading to energy efficiency and product quality.
The STT250 Series Smart Temperature Transmitter is a microprocessor based unit suitable for accepting a wide variety of thermocouple and resistance temperature detector sensor inputs or direct ohm or milli-volt inputs and providing a 2 wire 4-20 mA “Analog”, digital “DE”, or analog “HART” proportional output. The transmitter offers high accuracy and stability together with wide flexibility to suit a wide range of applications. All adjustments and operational settings are implemented through the Smart Field Communicator (DE) or the HART communicator (HART). Both field communicators access the transmitter by connecting across the 4-20 mA wiring in parallel with the STT250 anywhere along the wiring up to 1500 meters from the transmitter for both the DE and HART protocol versions.
Universal sensor inputs (RTD, thermocouple)
Compact size allows direct head mounting
Broad selection of housings and materials
Possibility of remote communications
Availability of pre-assembly and pre-configuration
Easy installation and maintenance
Integral analog or digital indicating meter option
Simple installation and wiring — customized mounting
Faster startup and commissioning
Simple trouble-shooting with advanced diagnostics
STT25D Single input transmitter with Honeywell DE protocol output
STT25H Single input transmitter with HART output
STT25S Single input transmitter with HART output and SIL2 TÜV certification
STT25M Single input transmitter with basic 4-20mA input
STT25T Dual input transmitter with HART output
STT25H with HART™ protocol when this popular protocol is preferred. Configuration of the HART unit can be made with any of the listed HART Communication Foundation tools.
STT25S with HART 6 protocol and TUV SIL 2 approval. Configuration of the HART unit can be made with any of the listed HART tools
STT25M for 4-20mA operation and local/ remote configuration via Honeywell’s digital DE protocol from the Smart Field Communicator (SFC) or Smart Configuration Toolkit PC based software (SCT).
STT25D with digital DE protocol for either 4-20mA operation or digital integration into the TDC 3000™/ TPS 3000™ control system.
-Manuals
STT250 Series Smart Temperature Transmitter
-Data sheet