supermarket refrigerated showcase » article > walk-in display coolers > Display cooler common maintenance tools (2)
Display cooler common maintenance tools (2)
author: supermarket refrigerated showcase category: walk-in display coolers Views: 571Time: 2016-08-22
display cooler common maintenance tools
display cooler mainly includes electrical systems and piping systems. Therefore, when the display cooler is overhauled, the main work is the electrical system and piping of the display cooler The system is overhauled.
clamp meter
When measuring the start current and working current of the display cooler, a clamp meter is usually used (some also have the function of a multimeter). The actual appearance of the digital clamp meter, when the current of the display cooler needs to be measured, adjust the range of the clamp meter according to the current rating marked by the display cooler, and then place one of the power cords on the clamp meter jaws At the center, the clamp meter can display the current value of the currently measured display cooler. When measuring, the clamp meter can only clamp one wire, otherwise the current cannot be measured. If the clamp meter has the function of measuring voltage, the clamp meter can also be used like a multimeter to measure the voltage of each part of the circuit and components of the display cooler to identify faults.
Megger
When measuring the insulation resistance of the compressor and other electrical components in the display cooler, the megger is used. The specifications of the commonly used megohmmeter are 500V, 0~500MQ. When using the megohmmeter to measure the insulation resistance of the compressor, connect the two measuring wires of the megohmmeter to the power line and ground wire of the display cooler (display cooler). Cooler metal shell), or directly across the compressor terminal and the compressor shell. The reading displayed by the megohmmeter is the insulation resistance of the display cooler compressor.
electronic thermometer
Use the electronic thermometer to easily measure the temperature of the display cooler freezer compartment and refrigerator compartment. It can be seen from the real object of the electronic thermometer that the front end of the electronic thermometer is a temperature probe. When in use, the temperature probe is moved to the freezer or refrigerator compartment of the display cooler to measure the temperature of the freezer or refrigerator. The electronic thermometer has the characteristics of small size, high sensitivity, intuitive temperature display and simple and convenient use.
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