SPECIFICATIONS

Function description:

Temperature measurement range: -20 ° C to+400 ° C;

Power supply voltage: DC 8-25V (recommended 12V)

Working current: 8-13MA

MODBUS RTU protocol, 03 read instruction, 06 write instruction.

Serial port baud rate: 9600 (default), N, 8, 1

By modifying the 485 address, MAX can cascade 247 modules (if more than 16, please use R485 repeater to read temperature and PT100 resistance values)

Compatible sensors: PT100 3-wire or 2-wire sensor

Temperature measurement accuracy: 1%. If the temperature deviation is too large, please recalibrate

Compatible PT100 sensor specifications:

1. Product Name: PT100 Waterproof and High Temperature Resistant Probe

2. Probe diameter: 6.5mm

3. Probe length: 30M M

4. Probe material: stainless steel

5. Line length: 0.5 meters

6.2/3 linear type

7. Temperature measurement range: -200~550 degrees Celsius

3-wire probe wiring method: The red wire is connected to P+, and the other two wires of the same color are connected to P - and GND (without distinguishing ports).

Attention: Please remove the jumper, otherwise it will affect the accuracy