Your #Fourbyclock uses an Epson RX8025T clock chip. This chip is a temperature compensated clock chip.
It may take a few days from installation for the clock chip to adjust itself for its timekeeping. This is normal.
On the clock unit to the left of the display there are two buttons, these will be used to program the clock and calibrate its functions.
Under normal display, pressing this button will cycle between the six display mode states of:
【Temperature 1】 →
【Temperature 2】 →
【Alternating Cycle Display】.
(Note: The display items and switching interval time in alternate cycle display mode are customized by "dd" and "dF" parameters respectively. See the following for programming )
Press this button to adjust programing settings
Press the button, "points" began to flash, press the top button to adjust the value.
After adjusting, press the button again, "hour" starts flashing, press the button to adjust the value.
And then press the button to enter the date adjustment, "day" will begin to flash, press the button after then "month" will began to flash, adjust and then press the button "year" start Flashes,
press the button to adjust the parameters into the extended set, see the following: "Other setup and calibration of your Fourby Clock"
Other setup and calibration of your Fourby Clock
Simply due to the shape of the LED display, voltages values normaly symbolised with a 'V' are displayed with a 'u'
Slight losses in the wiring loom can cause a discrepancy between actual battery voltage and what is being read on the wires of the loom, if you want to calibrate for these losses you can do so. Or just leave it as it is.
Use this calibration to get the Voltage meter bang on accurate. This setting is for Voltage measurement error correction for losses in the wiring loom, a positive number increases, a negative number decreases.
For example, the actual supply voltage is 12.0V, but the table shows 11.9V, it is adjusted to 0.1u.
To make use of this function use a top quality Digital Meter directly onto your battery and note the results whilst charging, calibrate the clocks voltage readout accordingly and adjust if needed.
Your Fourby clock has two temerature inputs.
Depending on how you want to use your temperature sensors you may want to calibrate them for extreme accuracy.
Temperature ① error calibration parameters.
A Positive number increases, A negative number decreases, the unit is degree, the adjustment range is -5 ~ 5.
For example, if you think the displayed temperature is 1 degree higher than the actual temperature, then set Ac: -1, so the electronic clock is automatically reduced by 1 degree and displayed.
(Note: If you do not have a standard thermometer for reference, it is recommended to keep this as Ac: 0)
Temperature ② error calibration parameters. Positive number increases, negative number decreases, the unit is degree, the adjustment range is -5 ~ 5. For example, if you think the displayed temperature is 1 degree higher than the actual temperature, set it to AC: -1, so that the electronic clock is automatically subtracted by 1 degree and displayed again.
(Note: If you do not have a standard thermometer for reference, it is recommended to keep this as AC: 0)
How to program how the screen will change and what will be displayed
Custom cycle shows the screen display item, the clock's display will change automatically,
[dd: 0] time + temperature 1 + temperature 2+ voltage
[Dd: 1] time + temperature 1 + temperature 2
[Dd: 2] time + temperature 1 + voltage
[Dd: 3] time + voltage
How to program the dwell interval function for each screen change in seconds.
This setting will program the clock for how long each screen is active before it changes to the next.
The adjustment range is 1 ~ 9.
For example, dF: 3, the switching interval is 3 seconds to switch the display item once.
(Please do not set to "0")
How to program the Display brightness Light Level,
The adjustment range is 1 ~ 3,
LL: 1 is the darkest,
LL: 3 is the brightest.
How to program the "Automatic light level" screen brightness control
Set to: 0 = OFF
Set to: 1 = ON
When set to on, The Fourby electronic clock will change the brightness to level 1 automatically everyday at 7pm and change this level to level 3 every day at 7:00 am.
There is no programming or calibration for the USB ports, they are 2A Apple compatable USB Fast charging ports