Current sensor -500..500 mA
The Current sensor BT22i is designed for measuring small currents in AC and DC circuits in the range between -500 and 500 mA. It has two banana (4-mm) plugs for easy connection. The sensor contains a sensing element and a signal-conditioning amplifier. The sensing element is a resistor connected between the red and black terminals. The sensor is protected by a multifuse.
The sensor should be connected in series to a circuit element. Currents in either direction can be measured. The current is indicated as positive when it flows from the red terminal to the black terminal.
The Current sensor is specially designed for measurements of very low and accurate currents. It can be used in various experiments such as:
• characteristics of a light bulb and a diode,
• measurements of internal resonance and EMF,
• measurements in series and parallel electrical circuits.
Together with a Differential Voltage Sensor it can be used to explore the relationship between the current and the voltage in electrical circuits - the Ohm’s Law.
The Current sensor can be directly connected to analog BT inputs of the CMA interfaces.
Technical specifications of the sensor are described in its User's guide
Price ex VAT