Gravity Analog Current Sensor 50A AC/DC V2

This DFRobot Gravity current sensor measures DC and AC current up to ±50 A with galvanic isolation via a magnetic field sensor. The output provides an analog voltage that changes linearly with the current: 2.5 V at 0 A and 40 mV per ampere. The current flows through a copper conductor of 0.08 mΩ, the connections are designed as solder holes and slots for thick wires and T-plugs from model making.

Important: Connect the sensor in series in a single wire, never in parallel across two wires, otherwise a short circuit occurs. According to DFRobot, at most 50 V AC or 120 V DC are permitted on the measured conductor, the sensor is not suitable for 230 V mains voltage.

Note: The connection cable can be converted to male pins with a Dupont cable M-M, so that it also fits an Arduino UNO.

Recommended Accessories:

• Dupont Cables M-M 10cm 20 Pieces
• Gravity IO Expansion Shield for Arduino V7.1

Features:

• Measures DC and AC current up to ±50 A
• Galvanically isolated measurement, conductor resistance 0.08 mΩ
• Analog output 40 mV/A, zero point 2.5 V
• Bandwidth 120 kHz, response time 4.6 µs
• Solder holes and slots for thick wires and T-plugs
• 3-pin Gravity connector

Application Examples:

• Current monitoring of motors and drives
• Load detection and overcurrent shutdown in robots
• Current measurement in model making

Documentation:

• Wiki DFRobot SEN0098-V2
• Example code DC current for Arduino (DFRobot wiki)
• Datasheet (PDF)

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: SEN0098-V2
• Sensor IC: STK-600/M-050AB5 by Sinomags (DFRobot datasheet V2.0), the DFRobot wiki states SC780
• Operating voltage: 5 V
• Output: analog, 40 mV/A, 2.5 V at 0 A
• Conversion: I = (U_out - 2.5 V) / 0.04 V/A
• Measuring range: -50 A to +50 A
• Permitted voltage on the measured conductor: 50 V AC / 120 V DC
• Bandwidth: 120 kHz
• Response time: 4.6 µs
• Conductor resistance: 0.08 mΩ
• Operating temperature: -40 °C to +125 °C
• Dimensions: 32 × 42 mm
• Weight: 20 g

Scope of Delivery:

• 1× Gravity analog current sensor 50A AC/DC V2
• 1× Gravity sensor cable 3-pin, PH2.0 to XH2.54