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Practical Tips for Hart Multi-Variable Converters 1.1 Product Introduction: The SM100-T-B multi-variable output converter is designed specifically for Rosemount 3051S multi-variable HART transmitters; it is a high-tech device that integrates the HART protocol with RS485 communication, as well as multiple variable current output functions. It is based on a high-end ARM microcontroller, and consists of interface chips, hardware watchdog circuits, etc. It also incorporates communication modules and HART modem chips, offering features such as stable performance and high cost-effectiveness. The structural design of the SM100-T-B multi-variable output converter fully complies with industrial standards. It features specialized designs in terms of temperature range, vibration resistance, electromagnetic compatibility, and interface diversity, ensuring stable operation in harsh environments and providing high-quality performance for your equipment. 1.2 Product Performance ● Equipped with an RS485 communication interface for parameter configuration. ● It uses a commonly used industrial enclosure, allowing it to be installed directly on instruments. ● It comes with dedicated configuration software that enables data communication with HART protocol smart instruments. ● Current transduction output can be provided for HART variables. ● It supports the standard MODBUS protocol. ● Supports a single HART protocol smart instrument. ● Supports a variety of special HART protocol smart meters. 1.3 Main parameters ● Installation dimensions: Length 82 mm × Width 69 mm × Height 113 mm. ● Operating environment temperature: -20°C to +80°C. ● Storage temperature: -25°C to +80°C. ● Power supply input voltage: DC 12～24V. ● HART protocol sampling resistor: 250Ω. 1.4 Product wiring diagrams: 1) Wiring diagram for two-wire instruments; 2) Wiring diagram for four-wire instruments. 1.5 Product application diagrams. Wang Yanping, Marketing Department, Jiaxing Songmao Electronics Market. Phone: 18757399889. Date: 2025.12.18