Instructions for use of zc-90 high insulation resistance measuring instrument

With the continuous development of industrial and electronic equipment, insulationresistanceThe measurement is particularly important in equipment maintenance and fault detection. As a high-precision and high-reliability testing instrument, the zc-90 high insulation resistance measuring instrument is widely used in fields such as electric power, communications, and electronic manufacturing due to its excellent performance and convenient operation. This article will introduce in detail the instructions for use of the zc-90 high insulation resistance measuring instrument to help users better understand its operation methods and improve measurement efficiency and accuracy.

The zc-90 high insulation resistance measuring instrument adopts advanced electronic measurement technology and has the characteristics of wide measurement range, high resolution and strong anti-interference ability. The instrument is equipped with an LCD screen, which can display measurement values ​​and status information in real time, making it easy for users to read. Its lightweight design and multiple measurement modes make on-site inspection more flexible and convenient.

Before use, make sure the battery of the instrument is fully charged and press the power switch to start the device. After turning on the instrument, the instrument will perform a self-test, check the internal circuit and display status, and start measurement only after confirming that there are no abnormalities. At the same time, check whether the connection between the test line and the clamp is firm to avoid bad contact affecting the measurement results.

Select the appropriate measurement range according to the insulation resistance range and test requirements of the object being measured. The zc-90 instrument usually provides multiple voltage options, such as 250V, 500V, 1000V, etc. Users should set reasonable settings according to equipment specifications and safety standards to avoid damage to the equipment.

Connect the test leads correctly to the instrument and the device under test. Generally, a three-wire or four-wire connection method is used to ensure that the test wire is in good contact with the insulated part under test. Be careful to avoid short circuits between the test leads or contact with debris to ensure measurement accuracy.

Start the measurement button, and the instrument starts to output the test voltage and measure the insulation resistance value. Keep the test line stable during the measurement process to avoid vibration and interference. After the measurement is completed, the instrument screen will display the insulation resistance value and measurement status. The user can judge the insulation condition based on the displayed results.

The measurement results are displayed on the LCD screen, and users should record key data in a timely manner. Some models support data storage and export functions, and can be connected to a computer via USB interface or Bluetooth to achieve data management and analysis, facilitating subsequent maintenance and quality tracking.

During use, the operating procedures should be strictly followed and avoid direct contact with the test port and the live part of the device under test. Before measuring, confirm that the device is powered off and has no residual charge to prevent electric shock accidents. Turn off the power after use and store the instrument and test leads properly.

Regularly check the instrument performance and test line status to avoid measurement errors caused by wire aging or damage. Clean the instrument surface and interfaces to prevent dust accumulation from affecting contact. When not in use for a long time, it is recommended to remove the battery to prevent battery leakage from damaging the internal circuit.

The zc-90 high insulation resistance measuring instrument has become an important tool in the field of insulation testing with its high accuracy and versatility. By mastering key steps such as startup preparation, gear selection, line connection, measurement operations, and safety maintenance, users can effectively improve measurement efficiency and accuracy and ensure safe and stable equipment operation. We hope that the instructions in this article can help users better apply the zc-90 instrument to achieve accurate and reliable insulation resistance testing.