USB Hart Modem USB To Hart Protocol Modem Hart Transmitter HART Convertor With 24VDC & Built-in Loop Resistor Temperature Controller Suitable for All Devices Which Support Hart Protocol Fully HART compliant for communication with any HART instrument and error-free slave testing DC-DC isolation power draws from USB port and needs no external power supply Three modes: 1) 24VDC/270?. 2) Normal. 3) 270?. Easy installation and use, this modem can power all 2-wire HART devices-independent of supplier Rugged aluminium alloy case gives you industrial-grade reliability in a small package USB Interface Built-in loop power supply Built-in loop resistor Free software SRK HART Modem is a smart device configuration / debug tools, can be used for the production of intelligent. HART configuration,commissioning and on-site management, maintenance and so on, use HART configuration / debug tools in the production process to configuration, debugging,calibration, diagnostics the HART Intelligence equipment, can also be used for management, configuration running. HART smart field devices and monitoring process variables.Windows XP/7/8/10 Support, Suitable for All Devices Which Support HART Protocol, etc. Fully HART compliant for communication with any HART instrument and error-free slave testing DC-DC isolation power draws from USB port and needs no external power supply Three modes: 1) 24VDC/270. 2) Normal. 3) 270. The mode is easily slide-switch selected so youll always have a power supply or loop resistor with you Easy installation and use, this modem can power all 2-wire HART devices-independent of supplier Install the USB driver software. You can update or download this driver anytime from internetP lug the USB cable to your PC, the yellow &#039;POWER&#039;LED will illuminateS lide-switch to select operating mode, and connect the test cable and HART device according to the following pictures