Teletek electronics CA60Plus Installation Manual page 34

ADDRESS 97 ADJUSTING THE BUILT-IN CLOCK
Any adjustments to the built-in clock can be done at this address. Digits between 00
and 99 are permissible. Where no adjustment is required, the value of 50 must be entered.
A respective value, which is greater than 50, is to be entered where the clock runs slow,
and lesser than 50 where it runs quick.
Each unit of value will adjust the clock by 5 seconds per month as speed or lag. This time
adjustment is evenly allocated within the month.
Recommended methodology for calculating the necessary correction value:
The days necessary for 1 minute's time deflection of the built-in clock is set here. The
correction is calculated by the formula:
360/days,
where "days" are the days specified above. The whole of the result is taken under
consideration. The figure can be rounded up to the larger digit. The result obtained is
added to the current value at this address in case of a lag of the clock, or is subtracted
from the current value at this address in case the built-in clock runs fast.
Example of calculating the adjustment: Suppose the clock lags by 1 minute per 85
days. The result after applying the quoted formula is 4.2. Where the current value at
this address is 50, the corrective factor of 54 needs to be introduced.
DEFAULT : 50
34 CA60Plus control panel Installation manual