PT21A01 DC12V RTD Converter: Accurate Temperature Sensor with RS485 Modbus RTU

Product Specifications

• Working Voltage: DC 6-25V (12V recommended)
• Working Current: 9-15MA
• Protocol: MODBUS RTU, 03 read command, 06 / 16 write command
• Serial Port Baud Rate: 9600 (default), N, 8, 1
• Addressable RS485 modules: Up to 247 (use RS485 repeater for more than 16)
• Sensor Compatibility: PT100 3-wire or 2-wire sensor
• Temperature Measurement Range:
  • A version: -40℃ to +220℃
  • B version: -40℃ to +500℃
• Recommended to choose version with suitable range for specific needs
• Temperature Measurement Accuracy: ±1%
• Size:
  • 49 x 27 x 15MM (with Terminal)
  • 30 x 22 x 3MM (no Terminal)
• Weight:
  • 13g (with Terminal)
  • 3g (no Terminal)

Key Features

1. Adjustable Baud Rate: 1200, 2400, 4800, 19200, 38400, 57600, 115200 BPS
2. Configurable Check Digits: None, Even Parity, Odd Parity
3. Fahrenheit Temperature Addition
4. 16 (0X10) Function Codes Addition
5. Hardware Reset (RES) Function

Typical Applications

• Thermostatic Controls
• Industrial Systems
• Consumer Products
• Thermally Sensitive Systems
• Measuring Instruments
• Indoor and Outdoor Temperature Measurement
• Vegetable Garden Temperature
• Weather Forecasting and Monitoring
• Computer Room Temperature
• Warehouse Temperature

Package Includes

• 1 × Module Board