Unit KMeter-ISO
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
Specifications
| 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 |
Related Link
Schematic
Protocol
Model Size
Examples
Arduino
UIFlow
UIFlow Blocks
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 | / |