China Wholesale Magnetic Field Manufacturers – LEEM-2 Construction of an Ammeter and a Voltmeter – Labor

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China Wholesale Magnetic Field Manufacturers – LEEM-2 Construction of an Ammeter and a Voltmeter – Labor Detail:

Pointer type DC ammeter and voltmeter are refitted from meter head. The meter head is usually a magnetoelectric galvanometer, which only allows the current of micro ampere or milliampere level to pass through. Generally, it can only measure very small current and voltage. In practical use, it must be modified to enlarge its measuring range if it is to measure large current or voltage. The modified meter should be calibrated with standard meter and its accuracy level should be determined. This instrument provides a complete set of experimental equipment for refitting micro ammeter into milliammeter or voltmeter. The experimental content is rich, the concept is clear, stable and reliable, and the structure design is reasonable. It can be mainly used for middle school students’ physics expansion experiment or college general physics experiment and design experiment.

Functions

1. Understand the basic structure and usage of a microamp galvanometer;

2. Learn how to extend the measurement range of a galvanometer and understand the principle of constructing a multimeter;

3. Learn the calibration method of a electric meter.

Specifications

Description	Specifications
DC power supply	1.5 V and 5 V
DC microamp galvanometer	measurement range 0 ~ 100 μA, internal resistance about 1.7 kΩ, accuracy grade 1.5
Digital voltmeter	measurement range: 0 ~ 1.999 V, resolution 0.001 V
Digital ammeter	two measurement ranges: 0 ~ 1.999 mA, resolution 0.001 mA; 0 ~ 199.9 μA, resolution 0.1 μA.
Resistance box	range 0 ~ 99999.9 Ω, resolution 0.1 Ω
Multi-turn potentiometer	0 ~ 33 kΩ continuously adjustable

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High-quality comes 1st; support is foremost; business is cooperation" is our small business philosophy which is regularly observed and pursued by our organization for China Wholesale Magnetic Field Manufacturers – LEEM-2 Construction of an Ammeter and a Voltmeter – Labor , The product will supply to all over the world, such as: Buenos Aires, European, Saudi Arabia, We are sincerely looking forward to cooperate with customers all over the world. We believe we can satisfy you with our high-quality products and perfect service . We also warmly welcome customers to visit our company and purchase our products.

Ammeter