What are the precautions for Fluke multimeter maintenance?

Time：2021-09-17                1959

A multimeter is a magnetoelectric instrument with a rectifier that can measure various electrical parameters such as AC and DC current, voltage, and resistance. Some can also measure the main parameters of transistors and the capacitance of capacitors. Fully mastering the use of multimeters is one of the most basic skills of multimeter maintenance personnel. In this article, the editor of Xi'an Agitek Fluke Multimeter Repair Center will share with you the use and precautions of the multimeter in the maintenance work. Please follow the editor to take a look!
  Precautions:
1. If the magnitude of the measured voltage or current cannot be estimated in advance, you should first dial to the highest range to measure once, and then slowly reduce the range to an appropriate position depending on the situation. After the measurement is completed, turn the range switch to the highest voltage block and turn off the power.
2. When the scale is full, the meter only displays the number "1" in the highest digit, and the other digits disappear. At this time, a higher range should be selected.
3. When measuring voltage, the digital multimeter should be connected in parallel with the circuit under test. When measuring the current, it should be connected in series with the circuit under test, and it is not necessary to consider the positive and negative polarities when measuring the direct current.
4. The editor of the Fluke Multimeter Repair Center reminds everyone that when the AC voltage block is misused to measure the DC voltage, or the DC voltage block is misused to measure the alternating current, the display will display "000", or the number on the low position will jump.
5. It is forbidden to change the range when measuring high voltage (above 220V) or high current (above 0.5A) to prevent arcing and burning of switch contacts.

The editor of Xi'an Agitek Fluke Multimeter Repair Center also reminds everyone that when using the Fluke multimeter, pay attention to check whether the cable is damp. When repairing the line of the Fluke multimeter, if the input level of the amplifier is lower than the level loss value of the specified cable length, the resistance of the cable can be measured by the pointer type multimeter (R×1 or R×100 block). If the needle is charged like a capacitor It seems to rise slowly, which indicates that the cable is seriously damp or there is more water in the cable.

And also pay attention to distinguish the phase line and zero line of the multimeter:

1. Pointer multimeter to distinguish phase line and zero line

2. Digital multimeter to distinguish phase line and zero line

When using a multimeter to repair the problem of the electric drive control circuit, pay attention to:

1. Use the resistance measurement method to repair the problem of the electric drag control circuit

2. Use the voltage measurement method to repair the problem of the electric drive control circuit

Xi'an Agitek Test Equipment Maintenance Co., Ltd. was founded in 2008. It has a professional maintenance team, good at maintaining Fluke instruments, specializing in maintenance and technical support services for various test and measurement instruments and systems, and always maintains and continues to expand leading maintenance technology and capabilities , has the technical ability to perform chip-level maintenance on various types of high-end instruments processed and produced by complex packaging processes.

The instruments that can be repaired by Xi'an Agitek Repair Center are:
Oscilloscopes, spectrum analyzers, signal generators, network analyzers, power amplifiers, digital collectors, digital multimeters, power supplies and loads, thermal imagers, accessories and others. Our company relies on sophisticated maintenance equipment, excellent maintenance technology, reasonable maintenance prices, and perfect after-sales service to save customers maintenance costs and shorten maintenance cycles. For more Fluke instrument maintenance related content, please continue to pay attention to Xi'an Agitek Maintenance Network!

Contact us
Xi'an Agitek Fluke Instrument Repair Center
Company address: C608, Zhicheng Business, No. 17, Gaoxin Fourth Road, High-tech Zone, Xi'an City

Company website：www.agitekservice.com