SINOTIMER specializes in industrial and household automation control products, including programmable digital timers, voltage protectors, energy meters, and solid-state relays.
SINOTIMER is a brand manufactured by Yueqing Xinyang Technology Co., Ltd., focusing on research, development, and production of measurement and control devices. Since its inception, the company has established itself as a reliable provider of digital programmable time switches, voltage surge protectors, and multifunction energy meters. Their products are widely used in industrial automation, building systems, and household appliances to manage energy consumption and ensure electrical safety.
The brand's portfolio includes the popular TM series of DIN rail timers, SVP adjustable voltage protectors, and various solid-state relays. Designed for precision and durability, SINOTIMER devices often feature intuitive digital displays and flexible programming options, allowing users to automate scheduled tasks and protect equipment from electrical faults like over-voltage or under-voltage conditions.
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Most SINOTIMER models (like the TM928) have a screen lock function. Press and hold the 'MENU' or 'C/R' button (depending on the model) for about 3 to 5 seconds until the lock icon disappears from the display.
Press the small 'Reset' or 'Res' button with a pointed object. This will clear all programmed settings and the clock, returning the device to its default state.
On SVP series protectors, press the 'SET' button to enter the parameters menu. Use the up/down arrows to adjust the over-voltage threshold value, then long-press 'SET' to save and exit.
Check if the timer is in 'AUTO' mode. If manual mode is set to 'OFF' or 'ON', the programmed schedule will be ignored. Press the manual/mode button until 'AUTO' is displayed.
Some models come with a replaceable CR2032 battery, while others have a built-in rechargeable lithium battery. Check the specific model's manual or back label to verify battery accessibility.