The PTA9B01 PT100 RS485 Temperature Sensor Module is designed for reliable temperature measurement using PT100 platinum RTD sensors. It supports both 2-wire and 3-wire PT100 sensors and communicates through an RS485 interface using the Modbus RTU protocol.
With a temperature measurement range of -20°C to +220°C, it is suitable for industrial automation, heating systems, process monitoring, control panels, and remote temperature measurement applications.
Specifications
-
Model: PTA9B01
-
Item Type: Temperature Sensor Module
-
Sensor Type: PT100 Platinum RTD
-
Temperature Measurement Range: -20°C to +220°C
-
Supply Voltage: DC 8–25V (12V recommended)
-
Working Current: 8–13mA
-
Communication Interface: RS485
-
Communication Protocol: Modbus RTU
-
Read Function: Modbus Function 03
-
Write Function: Modbus Function 06
-
Default Baud Rate: 9600 bps
-
Serial Configuration: 8 data bits, no parity, 1 stop bit (8N1)
-
Compatible PT100 Sensors: 2-wire and 3-wire
-
Available Measurements: Temperature and PT100 resistance values
-
Maximum Addressable Devices: Up to 247 modules
-
Device Address: Configurable RS485 address
-
Network Expansion: RS485 repeaters are recommended when connecting more than 16 modules
Key Features
-
-20°C to +220°C temperature measurement range
- PT100 platinum resistance temperature sensing
-
Supports 2-wire and 3-wire PT100 probes
- Industrial RS485 communication
- Standard Modbus RTU protocol
- Reads both temperature and PT100 resistance values
- Configurable device address
- Supports multiple modules on the same RS485 network
-
Wide DC 8–25V operating voltage
- Suitable for remote and industrial temperature monitoring
Applications
Suitable for:
- Industrial automation
- Temperature monitoring systems
- PLC systems
- Heating equipment
- HVAC systems
- Control panels
- Manufacturing equipment
- Process temperature monitoring
- Laboratory equipment
- Data acquisition systems
- Arduino and ESP32 projects with a suitable RS485 interface
