How do you calibrate a analog multimeter?

BASIC MULTIMIETER OPERATION BASIC MULTIMETER INFORMATIONMultimeter is a measuring instrument. It can be used to measure voltage, current and resistance. An analog meter moves a needle along a scale. The function of the meter can be changed by switching the dial. Most modern multimeters are digital. Similar to analog ones, digital multimeter has a dial to select its function. However, instead of having to interpret the reading of an analog scale, the data is shown directly in digital format on the LCD display. BASIC MEASUREMENT PROCEDURES 1. Before using the multimeter, estimate the value you will measure, make sure it is within the range that the multimeter can measure or withstand. NEVER USE THE METER BEYOND ITS CAPABILTY. 2. Choose to the function you want to use by switching the dial. Turn on the power. 3. When measuring voltage, connect the BLACK probe (COM) to the ground (0V), and the RED probe to the node you want to check. When measuring resistor, first make sure the resistor is not connected to any other component or power supply, then connect the probes to the two ends of the resistor. 4. Two alligator clips can be used with probes. For your safety, alligator clips MUST be used when measuring any voltage more than 36V. They can also be used to free your hands by clipping the probes onto the circuit. Put the alligator clips back in the box after each use. 5. Read the data on the display, remember the units. 6. Turn off the power when you are done. MULTIMETER TROUBLESHOOTING 1. Is the BLACK probe in the COM plug? 2. Is the RED probe in the correct plug? 3. Is the function dial turned to the correct position? 4. Is the power of the multimeter on? * Word OF CAUTION AND DISCLAIMER* ALWAYS USE EXTREME CAUTION WHEN USING ANY TYPE OF METER.OR WORKING WITH ELECTRICITY. NEVER-NEVER-NEVER HOLD THE METER WHILE TESTING IN CASE OF ELECTRICAL SHOCK- PLACE THE METER DOWN ON SOMETHING THAT IS NON-CONDUCTIVE, AND MAKE SURE YOU ARE GROUNDED PROPERLY. NEVER DO ANY ELECTRICAL TESTING WITHOUT PROPER FOOTWEAR OR INCLEMENT WEATHER. *** IF YOU ARE EVER IN DOUBT OF WHAT TO DO, CONSULT A PROFESSIONAL ELECTRICIAN.