Hi,

Please check below instruction. It doesn’t mean you have to program all of parameters. If voltage or temperature reading is not corret, you can follow below operation.

Using Instruction:

• A). Time, date, temperature error correction, voltage error correction, brightness adjustment.
• Under normal using state(no flashing state)
  • 1). Press the “left” key, “minute” will begin to flash, then pressing the “right” key to increase “minute” value, you can set the “minute” value in the range 59~0.
  • 2). Press the “left” key, “hour” will begin to flash, then pressing the “right” key to increase “hour” value, you can set the “hour” value in the range 23~0.
  • 3). Press the “right” key, it will switch to date adjustment, the “:” indicator light will be off, and “day” will begin to flash, pressing “right” key to increase “day” value, you can set “day” in the range 1~31. Then press “left” key, “month” will begin to flash, pressing “right” key to increase the “month” value, you can set the “month” value in the range 1~12.
  • 4). Press “left” key, “year” will begin to flash, pressing “right” key to increase “year” value, you can set the “year” value in the range 2012~2050.
  • 5). Press “left” key, it will enter the RT0 channel temperature correction, LED displays “Ac:xx”, xx is the temperature correction value, unit is degree. Pressing “right” key to adjust the temperature error correction value in the range -5℃～5℃, positive number means increased, the negative means reduced. And then pressing the “right” key to enter the RT1 channel temperature correction, LED displays “AC:xx”, adjustment method is the same as RT0.
  • 6). Finished the temperature error correction, press the “left” key, LED displays “U x.x”, which means entering the voltage error correction, x.x is correction value, in the range U0.5~U-0.5, positive number means increased, negative number means reduced, unit is V, for example U-0.1, it means reducing 0.1V.
  • 7). Press the “left” key, LED displays “dd:x”, it enters the definition function of cycle time display, you can press “right” key to adjust, (dd:1)time+RT0+RT1, (dd:2)time+RT0+voltage, (dd:3)time+voltage.
  • 8). After adjusting the DD option, then pressing the “left” key to enter the brightness adjustment, LED displays “LL:xx”, the higher the value, the brighter the light. After setting the brightness, pressing the “right” key to save all data, and return to the normal display state.
• B). Display mode switch.
  • In the non-adjusted state (no flashing state), pressing “right” key will switch display mode, you can wait for a few seconds to check whether it is in the display cycle, if it didn’t switch, please try again to press the “right” key, it will switch display mode as sequence ① shows time only→ ② shows the date only → ③ shows RT0 temperature only → ④ shows RT1 temperature only → ⑤ shows the voltage only→ ⑥ time, RT0 temperature, RT1 temperature, voltage, they will alternately display, and save the last mode, even if power off and then boot.
• C). “DF”: set the time interval of loop display mode, please don’t set it to “0”, otherwise it will be a black screen.