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KMeterISO Unit

SKU:U133-V11

Description

KMeterISO unitis an integrated K-type thermocouple sensor unit that integrates the functions of "acquisition + isolation + communication", using STM32F030+MAX31855KASA 14bit thermocouple digital conversion chip scheme to achieve high-precision temperature acquisition and conversion, MCU using STM32F030 to realize data acquisition and 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, heat treatment 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 addr: 0x66
  • Signal Isulate The CA-IS3641HW isolates input and output signals to improve stability, safety, and reliability.
  • Supported programming platforms: Arduino, UIFlow

Includes

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

Applications

  • Industrial automation
  • Instrumentation
  • Power appliances
  • heat treatment

Specification

Resources Parameters
MCU STM32F030, ARM Cortex-M0,UP to 48MHz,64K flash,4K 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
STM32F030 ARM Cortex-M0,48MHz,64K flash,8K SRAM
i2c address 0x66
Product Size 56 * 24 * 9.6 mm
Package Size 136 * 92mm * 13mm
Product Weight 10.1g
Package Weight 22g

Schematic

schematics

Protocol

schematics

Module Size

module size

Examples

Arduino

UIFlow

UIFlow Blocks

  • Init device I2C address
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  • Get thermocoupie temperature
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  • Get internal temperature
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  • Get string thermocoupie temperature
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  • Get string internal temperature
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  • Is ready temperature measurement
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  • Get device firmware version
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  • Get device I2C slave address
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  • Set device I2c slave address
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Version Change

Release Date Product Changes Notes
2023.4 The main control was changed from ESP32-C3 to STM32F030, and the signal isolator CA-IS3641HW was added /