Kmeter Isolation Unit with Thermocouple Temperature Sensor (MAX31855)

The KMeterISO unit is an integrated K-type thermocouple sensor unit that integrates the functions of acquisition, isolation, and communication. It uses the STM32F030 & MAX31855KASA+T 14-bit thermocouple digital conversion chip scheme, to achieve high-precision temperature acquisition and conversion. The MCU uses the STM32F030 to get data acquisition and the I2C communication interface, using CA-IS3641HW as a signal isolator. The unit supports access to thermocouple probes with a measurement range of -200°C to 1350°C, and adopts a universal standard K-type flat interface, which is convenient for subsequent replacement of different measuring probes to match different needs. This module is widely used in application scenarios such as temperature collection, control, and monitoring in industrial automation, instrumentation, power and electrical, and other fields.

Features

• STM32F030, high-performance ARM Cortex-M0 core, supports I2C firmware updates
• MAX31855KASA+T: (14Bit ADC, 0.25°C Resolution, ±2% Accuracy)
• Supported probe types: Type K – Supports access probe measuring range from -200°C to 1350°C
• I2C communication interface address: 0x66
• CA-IS3641HW isolates input and output signals to improve stability, safety, and reliability.
• Supported programming platforms: Arduino, UIFlow

Specifications

Resources

• Product Wiki
• STM32F030F4P6 Datasheet
• MAX31855KASA+
• CA-IS3641HW
• Tutorial video

Package Contents

• 1x KmeterISO Unit
• 1x K-type thermocouple probe (measuring range -50°C to 250°C, wire length 1m)
• 1x HY2.0-4P cable (20cm)