Description
The 7Semi PT1000 RTD 3-Wire Temperature Sensor Amplifier Breakout Board is designed for precision temperature measurement using a PT1000 platinum RTD. Built around the MAX31865 RTD-to-digital converter, this module supports 2-wire, 3-wire, and 4-wire RTD configurations, with the 3-wire method providing improved accuracy by compensating for lead resistance. With onboard fault detection, a high-resolution ADC, and SPI communication, this breakout is ideal for industrial, laboratory, HVAC, and embedded temperature-sensing applications.
Technical Specifications:
- Supported Sensor: PT1000 platinum RTD
- Supported Wiring Methods: 2-wire, 3-wire, or 4-wire
- Interface: SPI digital communication
- Operating / Logic Voltage: 3.3V (compatible with 3.3V and 5V logic)
- ADC Resolution: 15-bit delta-sigma ADC
- RTD Resistance Range Supported: 100Ω to 1000Ω (PT100 to PT1000)
- Temperature Resolution: ~0.03125°C (dependent on wiring and RTD characteristics)
- Conversion Time: ~21 ms per reading
- Fault Detection: Open-circuit RTD, short-circuit, and cable fault detection
- Input Protection: ±45V protection on RTD inputs
- Temperature Range: Supports full PT1000 measurement range
- Board Type: Compact breakout with SPI pins
Features:
- High-precision temperature sensing using PT1000 RTD
- 3-wire RTD configuration helps compensate for lead resistance errors
- MAX31865 RTD-to-digital converter simplifies design (no external ADC needed)
- SPI interface makes integration easy with microcontrollers (Arduino, ESP32, STM32, Raspberry Pi)
- Supports 2-wire, 3-wire, and 4-wire RTD configurations
- Works with both 3.3V and 5V logic MCU systems
- Built-in fault detection for sensor and wiring issues
- High-resolution ADC ensures accurate, stable readings
- Suitable for industrial, laboratory, and scientific temperature measurement
- Compact module ideal for embedded designs and prototypes
Applications:
- Industrial process and equipment temperature monitoring
- Laboratory and scientific instrumentation
- HVAC and environmental control systems
- Embedded systems requiring accurate temperature feedback
- Data logging and long-term environment monitoring
- Automation and control systems
- Temperature monitoring in ovens, furnaces, heaters, and climate chambers
- Smart-home and IoT temperature-tracking systems