Tinycontrol INA740 digital electric meter on DIN rail for LK3, LK4

Product detailed description

Tinycontrol INA740. Precision digital power monitor with integrated current sensor and 16-bit delta-sigma ADC. The INA740 is a dedicated sensor designed for accurate measurement of electrical parameters in industrial and IoT applications. The device can measure bidirectional currents up to ±24 A (connector limit, the chip itself can handle up to ±35 A) while supporting common-mode voltages up to 85 V. Its high accuracy and wide measurement range make it ideal for power monitoring, system diagnostics and performance optimization. The sensor provides comprehensive measurements including current, bus voltage, chip temperature, power, and power consumed. Communication is via the I2C bus and the RJ connector is compatible with tinycontrol devices, while the sensor is supported by the LK4 controller. - Bidirectional current measurement in the range of ±2 4 A with high accuracy - Voltage measurement in the range 0-85 V for a wide range of applications - Integrated temperature sensor with ±1.5 °C accuracy (at 25 °C) - 16-bit resolution for highly accurate measurements - Very low internal resistance (shunt) of only 800 µ? minimizes losses - Accuracy of ±1.6% for power and ±2.1% for energy measurements - 4-position I2C address change switch to allow operation of up to 4 sensors on a single bus - Mounting on standard 35 mm DIN rail for easy installation Universal connectivity and integration The sensor's RJ connector is compatible with Tinycontrol devices and the sensor is supported by the LK4 controller. For integration with other controllers (e.g. Arduino), you need to get familiar with the pin layout of the RJ connector, which is described e.g. in the short LK4 manual. Flexible I2C addressing The sensor board is equipped with a 4-position switch that allows to change the I2C address. This makes it possible to operate up to 4 sensors on one I2C bus, a feature available with the LK4 controller. Easy installation The sensor supports mounting on a standard 35mm DIN rail, making it easy to install in industrial racks and control systems. The device is compatible with 0.5-2 mm (12-24 AWG) conductors for flexible wiring. Technical Specifications: Current measurement range: ±24 A (bidirectional) Voltage measurement range: 0-85 V Internal resistance (shunt): 800 µ? Current offset: ± 62.5 mA (max.) Power measurement accuracy: ± 1.6% (max.) Energy measurement accuracy: ± 2.1% (max.) Temperature sensor accuracy: ± 1.5 °C (max. at 25 °C) Measurement resolution: 16-bit Supply voltage: 3.3 V Current-carrying wire size: 12-24 AWG (0.5-2 mm diameter) DIN rail mounting: yes (35 mm) Dimensions: 63 × 44 × 16 mm Cable length: 27 cm The sensor should be connected according to the schematic, for voltage (and of course power and energy) measurements the LK4 ground and the load ground must be common! In the case of an isolated system, only current measurements can be made.