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Product description: Tinycontrol INA740 - I2C digital power monitor for measuring current, voltage, power and energy - for DIN rail
The INA740 is a digital power monitor equipped with an integrated current sensing element and a high-performance 16-bit delta-sigma converter , ensuring accurate electrical parameter measurements. The module is designed for direct mounting on a standard 35mm DIN rail . It enables bidirectional current measurement up to ±24A and voltage up to 85V , while simultaneously calculating the power and energy consumed by the load. Additionally, the monitor provides integrated circuit temperature measurement, and I2C communication ensures easy integration with the LK4 controller, Arduino , and other systems equipped with this interface. A four-position switch allows for changing the I2C address and operation of up to four modules on a single bus.
Tinycontrol INA740 - I2C digital power monitor for measuring current, voltage, power and energy - for DIN rail.
Connection diagram.
Main Features of the INA740 Power Monitor
- Multi-parameter measurement : simultaneous measurement of current, voltage, power, energy and system temperature
- Bidirectional current measurement : accurate current monitoring up to ±24 A (with integrated circuit limit up to ±35 A)
- Wide voltage range : supports bus voltages from 0V to 85V
- 16-bit ADC : high resolution and precision measurements
- I2C interface : easy integration with the LK4 controller, Arduino and other systems equipped with an I2C bus
- Configurable I2C address : 4-position DIP switch allows easy changing of I2C address and operation of up to 4 sensors on one bus (functionality available with LK4)
- DIN rail mounting : convenient installation in control cabinets and automation systems
- Built-in temperature sensor : monitors system temperature with high accuracy
- Low shunt resistance : 800 µΩ reduces power loss during measurement
Sensor technical specifications
- Current measurement range: ±24 A (bidirectional)
- Voltage measurement range: 0 V to 85 V
- Converter resolution: 16 bit
- Communication interface: I2C
- Shunt resistance: 800 µΩ
- Offset current: max ±62.5 mA
- Power measurement accuracy: max. ±1.6%
- Energy measurement accuracy: max. ±2.1%
- Temperature sensor accuracy: max. ±1.5°C at 25°C
- Supply voltage: 3.3 V
- Supported wire: 12 AWG to 24 AWG (0.5 mm to 2 mm diameter)
- Mounting: 35 mm DIN rail
- Cable length: 27 cm
- Dimensions: 63 x 16 x 44 mm
Kit contents
- INA740 Digital Power Monitor - DIN Version
The module has a 4-position switch that allows you to change the I2C address.
