WEEK 7

TITLE : Makes holes in the PCB board uv.

METHODS:

At this week, we trying to make a hole at PCB Board by using a drill. After making a hole we check the connection using a multimeter. If the buzzer at the multimeter were not buzzing so that's mean there must be no connection between each other. As you can see the picture below of the this week procedure.
Other than that the component connection to the test to find out the current components in good condition or not.

To measure current with a digital multimeter it is possible to follow a few simple steps:

• Turn the meter on.
• Insert the probes into the correct connections - in many meters there are a number of different connections for the probes. Often one labelled common into which the black probe is normally placed. The other probe should be entered into the correct socket for the current measurement to be made. Sometimes there is a special connection for current measurements, and sometimes a separate one for either low or high current measurements. Select the correct one for the current measurement to be made.
• Set main selector switch on the meter switch to the correct measurement type, (i.e. current) and range for the measurement to be made. When selecting the range, ensure that the maximum range is above the expected reading anticipated. The range on the DMM can then be reduced as necessary. However by selecting a range that is too high, it prevents the meter being overloaded.
• When the measuring the current, optimise the range for the best reading. If possible enable all the leading digits to not read zero, and in this way the greatest number of significant digits can be read.
• Once the reading is complete, it is a wise precaution to place the probes into the voltage measurement sockets and turn the range to maximum voltage. In this way if the meter is accidentally connected without thought for the range used, there is little chance of damage to the meter. This may not be true if it left set for a current reading, and the meter is accidentally connected across a high voltage point.

TESTING THE CIRCUIT CURRENT USING MULTIMETER.

MAKE A HOLE AT PCB BOARD. 

COMPLETE THE HOLE AT PCB BOARD.

CONCLUSION:

Although it is not as common to measure electrical current as it is to measure voltage, it is nevertheless and important ability to be able to measure current. Also knowing how to measure current to gain the best of the multimeter is also important. It is often necessary to know how to measure current using a multimeter. Current measurements are easy to make, but they are done in a slightly different way to the way in which voltage and other measurements are made. However current measurements often need to be made to find out whether a circuit is operating correctly, or to discover other facts associated with its current consumption.