M100-C(III) HART Modem is a high-performance, USB-powered intelligent converter designed for industrial automation and field instrument diagnostics.
With its built-in isolated 24V power supply, integrated 250Ω resistor, and USB interface support, the SM100-C(III) offers a reliable and compact solution for configuring, calibrating, and maintaining HART field devices. Ideal for engineers and technicians needing portable and efficient field communication.
Model: SM100-C (III)
Communication Interface: USB
Power Supply: USB Bus-powered (DC 5V / 30mA)
Output Power: Built-in isolated 24VDC
Resistor: Integrated 250Ω precision resistor
Protocol Compatibility: Fully supports HART standard protocol
Case Dimensions: 71 × 52 × 22 mm (2.8 × 2.0 × 0.9 in)
Operating Temperature: -20℃ to +80℃
Humidity Range: 10% ~ 80% RH (non-condensing)
USB Cable Length: 48 cm
Test Wire Length: 50 cm (red & black leads)
Wiring Modes: 250Ω / None / 24V + 250Ω
Indicator Lights:
  - POW: Solid when powered
  - TXD: Flashes on data transmission
  - RXD: Flashes on data reception