Mitsubishi touchscreen products, especially those with external acoustic wave (EAW) technology, suffer from limited environmental adaptability. Water droplets, dust, and other contaminants can render the screen unusable. Therefore, like other machines, touchscreens require regular maintenance. Furthermore, as touchscreens are highly integrated touch-screen devices, forming a crucial component of system control, daily maintenance and protection are essential to prevent malfunctions.
Handheld Mitsubishi Touchscreen
I. Routine Maintenance and Protection
1. In daily use, the touch screen should be kept as clean as possible. The touch screen controller can automatically detect dust, but if too much dust accumulates, it will reduce the sensitivity of the touch screen. The touch screen surface should be wiped clean with a cleaning agent and a damp cloth.
Note: When disassembling the touchscreen to clean the internal dust, the power must be disconnected. Failure to disconnect the power may cause touchscreen malfunctions or operational errors.
2. Water droplets or beverages falling on the touchscreen screen can cause the software to stop responding. This is because water droplets and fingers have similar properties and need to be wiped away. Therefore, the installation environment should be designed to prevent water droplets from falling into the area to avoid touchscreen errors.
3. Try to prevent the touchscreen from being scratched. Once the touchscreen is broken or severely scratched, the user loses the right to free warranty from the original manufacturer. Therefore, every user should cherish the touchscreen.
4. Regarding resistive pressure touchscreens, five-wire and six-wire resistive pressure touchscreens can generally still be used normally after the outer layer is scratched; however, four-wire resistive pressure touchscreens may be difficult to use once the outer layer is scratched.
5. Capacitive touchscreens are not suitable for use in environments with electromagnetic interference or requiring precise operation. In daily use, avoid striking the touchscreen with hard objects; otherwise, a small hole may appear at the point of impact, rendering the surrounding area untouchable. Capacitive touchscreens often exhibit "drift"—a phenomenon where touch is unresponsive—during use. If this occurs, a calibration and recalibration procedure should be performed to recalibrate the touchscreen.
II. Regular maintenance and protection
1. Check the power supply voltage and determine whether it is within the standard range.
2. Check the condition of the touchscreen device to see if it is loose or faulty, or if there are any foreign objects attached to the surface.
3. Replace the battery inside the touchscreen regularly. The alarm error code for low battery voltage in Mitsubishi touchscreens is 500. If this error code appears, replace the battery with a new one in time to prevent the battery voltage from getting too low.
