Which two holes on the multimeter should the measuring ammeter pens be placed in?
Which two holes on the multimeter should the measuring ammeter pens be placed in?
The multimeter's test leads are separated into red and black sections. When in use, place the black test lead into the "-" jack and the red test lead into the "+" jack.
The performance of the meter head essentially determines a multimeter's primary performance indicator. The DC current value flowing through the meter head when the pointer is deflected at full scale is referred to as the meter head's sensitivity. The meter head's sensitivity increases with decreasing value. When measuring voltage, the internal resistance should be as high as possible.
1. The gear position needs to match the kind of current being measured. In other words, choose the appropriate gear based on the AC and DC types of current you wish to measure; AC relates to AC gear, and DC corresponds to DC gear;
2. Choose the proper range; otherwise, the multimeter is very prone to catch fire. You must select the maximum range if you are unsure of the measured current's magnitude. For instance, a digital multimeter with a 20 ampere range can gauge 4.4 kilowatts of current;
3. Join the multimeter in series with the electrical appliance's live wire. Turning off the electrical switch is the first step in accomplishing this. The plug is unplugged in step two, the meter is connected in series, and the plug is reconnected in step three before the switch is turned on. The multimeter's reading is satisfactory right now.
Nota: It is quite risky to measure the current of high-power electrical appliances using this method, and it is simple to burn the meter. It is advised to use a clamp ammeter. It is safe and easy in this way.
The red and black test leads are put into the corresponding holes in the digital multimeter to measure the socket's current. How come it burns? What ought I to do?
The measured current must be connected in series to the circuit being tested, whether it is being used with a digital or pointer multimeter.
By inserting the red and black test leads into the corresponding holes, you can connect the ammeter (the multimeter's current gear) in parallel to the electrical appliance and supply it with 220V voltage. Although the resistance of the multimeter's current gear is only a few ohms, the current is hundreds of amps, thus it will undoubtedly burn.
