Daily Maintenance of the Instrument
1. Within three months, if the instrument fails to meet technical requirements due to its own reasons, it can be replaced unconditionally. 2. Free repair within one year, and lifelong repair and technical service. 3. If the instrument has quality problems, a repair plan will be proposed on the same day, and on-site handling will be carried out promptly. Alternative instruments can also be provided to meet user needs. 4. Free on-site technical support and training on instrument usage knowledge. 5. If the instrument malfunctions, please contact us promptly so that we can provide service. Appendix 1: Method for Replacing Paper in Panel Printer The printer equipped with the instrument has a paper roll installed at the factory. When the paper roll inside the printer is used up, a new paper roll needs to be installed. The specific installation process is as follows: (1) Remove the front cover of the printer. (2) Remove the entire printer from the instrument panel. Use your fingers to pinch the movable tabs on both sides of the printer inward, and gently lift the entire printer off the instrument panel. Note: Before removing the printer, make sure the printer power is turned off. (3) Remove the paper roll spindle from the printer. (4) Slide the new paper roll onto the spindle and insert the spindle into the guide slot of the printer so that it does not fall out. (5) Cut the paper head into a cone shape. (6) Turn on the printer power, press the SEL key to turn off the SEL indicator light, then press the LF key to rotate the print head. At this time, manually feed the paper head into the paper inlet below the print head, and the paper will quickly enter the print head until it emerges from the front of the print head. Ensure that a sufficient length protrudes, then press the SEL or LF key again to stop paper feeding. Turn off the power, close the front cover of the printer, and thread the paper head out through the opening in the front cover. (7) Reinstall the entire printer onto the instrument panel. Usage Method for DC Resistance Tester: A: DC Power Supply Test: Close the main power switch, and the corresponding indicator light will illuminate. Press the "Start/Stop" key to begin the test. After the test is completed, press the "Reset" key, and the instrument will display "Discharging". Wait until the instrument returns to the startup interface, then turn off the main power switch, and the corresponding indicator light will go out. Then switch the test leads for another test. B: AC Power Supply Test: Connect the AC 220V power supply, and the "Charging" indicator light will illuminate. Close the main power switch, and the corresponding indicator light will illuminate. The procedure is similar to the DC test method. Special Note: After the test is completed, you must press the "Reset" key and wait until the instrument returns to the startup interface before turning off the power for the next test.
Panel Operation Method
◇This instrument is equipped with three keys: "Select", "Confirm", and "Reset". 1. Resistance Measurement After powering on or pressing the reset key, the instrument enters the initial state (1). At this time, the cursor pointer points to "Resistance". Press the "Confirm" key directly to enter state (2), which displays the changing charging current and measurement time. After charging is completed, it automatically enters state (3), displaying the resistance value, measurement current, and measurement time. At this point, each press of the "Confirm" key stores a measurement result (for models with a printer, the measurement result is also printed). Press the "Reset" key to exit resistance measurement and enter state (4), which displays the discharge current. After discharge ends, it automatically returns to the initial state (1), completing one resistance measurement. 2. Number Setting Inputting the device number helps in searching memory data. In the initial state (1), move the cursor pointer to "Settings" and press the "Confirm" key to enter state (5), which displays the current device number. Press the "Confirm" key again to enter state (6), prompting for a new device number. At this time, pressing the "Select" key cycles the current input digit from '0' to '9', then from 'A' to 'Z'. When the desired number or letter is found, press the "Confirm" key to input that digit. Then input the next digit in the same manner. After entering six digits, it returns to state (5), displaying the newly entered device number. Press the "Reset" key to return to the initial state (1). 3. Memory Operation In the initial state (1), move the cursor to "Memory" and press the "Confirm" key to enter state (7), which displays the total number of records in the current memory. At this time, pressing the "Select" key can enter state (8), which displays the memory records starting from the most recent one. NNNNNN represents the device number of that record, and MM represents the MM-th resistance value of that device. During measurement, each time the "Confirm" key is pressed to store a measurement result, the MM value increases by 1. When a new device number is entered, the MM value restarts from 1. Pressing both the "Select" and "Confirm" keys simultaneously will clear all data in the memory. Press the "Reset" key to exit the memory operation and return to state (1). The memory can store up to 120 measurement results. After exceeding 120, the oldest records will be overwritten. The memory contents can be retained for a long time without loss even when the power is off.
