JUNCTEK
Chapter 4 Troubleshooting
The following are possible malfunctions and troubleshooting methods that may
occur during the use of the KH-F series. If you encounter any of these
malfunctions, please follow the corresponding steps to troubleshoot. If you
cannot resolve the issue, please contact JUNCTEK and provide your device
information.
(1). If the screen remains black and there is no display after power-on:
Check if the power connection and the connection between the display
module and the measurement module are properly connected.
After checking the above, restart the meter.
If the product still cannot be used normally, please contact JUNCTEK
(2). The screen is too dark to see clearly:
Check if the brightness setting value of the LCD screen is too small. Press
the
【
SET
】
key to enter the system settings interface, then press the
【
▲
】
【▼】 keys to move the cursor to the Day screen brightness/Night screen
brightness, and then adjust the brightness of the LCD screen to a suitable
state by pressing the 【OK】 key and using the 【▲】【▼】 keys.
(3). The display module is connected to communication but the data and time
are not updated:
Check if the display Host mode is turned off in the system settings. Press
the
【
SET
】
key to enter the system settings interface, then press the
【
▲
】
【▼】 keys to move the cursor to the Display Host mode, and then select
to turn on the Display Host mode by pressing the 【OK】 key.
(4). The communication between the display module and the measurement
module is interrupted, and a red "×" is displayed in the upper right corner:
Check the communication cable.
Check the communication address. Check if the communication address
of the measuring module is the same as that of the display module.
Check if the firmware upgrade process was interrupted or exited during
use. You can re-upgrade the firmware.