M5Stack Kmeter Isolation Unit w/ Thermocouple Temperature Sensor (MAX31855)

M5StackSKU: RB-Mst-344
Manufacturer #: U133-V11

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  • M5Stack Kmeter Isolation Unit with Thermocouple Temperature Sensor (MAX31855)
  • Integrates data acquisition, isolation, and communication
  • Utilizes high-precision temperature acquisition and conversion
  • Supports a wide temperature range of -200 to 1350 °C
  • Features a universal standard K-type flat interface
  • Ideal for temperature collection, control, and monitoring in various fields

The M5Stack Kmeter Isolation Unit with Thermocouple Temperature Sensor (MAX31855) is an integrated unit that combines the functionalities of data acquisition, isolation, and communication. It employs a K-type thermocouple sensor and utilizes the STM32F030+MAX31855KASA+T 14bit thermocouple digital conversion chip scheme for high-precision temperature acquisition and conversion. The microcontroller unit (MCU) uses STM32F030 for data acquisition and I2C communication interface, while the CA-IS3641HW serves as a signal isolator.

The unit is designed to support the connection to thermocouple probes with a measurement range of -200 to 1350 °C. It features a universal standard K-type flat interface, which facilitates the easy replacement of different measuring probes to cater to various requirements. This module finds extensive application in scenarios such as temperature collection, control, and monitoring across diverse fields including industrial automation, instrumentation, power and electrical, and heat treatment.

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

  • 56 x 24 x 9.6 mm (L x W x H)
  • MCU: STM32F030, ARM Cortex-M0, 48MHz, 64K flash, 8K SRAM
  • Temperature sensor chip: MAX31855KASA+T
  • Signal isolation chip: CA-IS3641HW
  • Resolution: 14 bit
  • Thermocouple Operating temperature range: -200-1350 °C
  • Thermocouple type: K
  • Maximum sample rate: 10 Hz
  • SPI interface clock frequency range: Up to 5 MHz
  • Internal temperature sensor accuracy: ±2 °C
  • Measurement accuracy: ±2 °C
  • Anomaly detection: Open, short, and thermocouple low voltages
  • I2C address: 0x66
  • Weight: 10.1 g

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