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VI - WHAT TO DO IF...?
What to do if...?
The clock (powered by battery)
had stopped.
The second hand of a battery
operated clock has stopped but
the clock is on time.
No synchronisation after the
installation.
A receiver clock on a ½ minute
network is 30s alter after the
installation.
Minute or ½ minute parallel
receiver stopped.
½ minute serial network
stopped.
AFNOR / Irig-B receiver
stopped at 12h00.
DHF clock stopped at 12h00.
Switch again a DHF clock to
"initialisation" mode.
18
...CHECK.
The battery has run out. Replace the battery.
Resetting of the time and date is, automatic for radio
synchronised clocks, manual for independent clocks.
Dust on the battery contact terminals (+ and -) can disrupt the
power supply to the clock. Clean these contact terminals with
a soft dry cloth, if necessary.
Battery threshold is low (less than 1.15V); the second hand
has stopped to second 0 to preserve the batteries.
Replace the batteries.
Check that the type of signal send by the master clock
(min, ½ min, AFNOR/ Irig-B) is in accordance with the type
programmed in the clock.
It is impossible for a slave clock to discern between two 1/2
minute impulses which one is the master clock minute stroke,
the reversal of the two wires is needed to correct the time.
Lack of impulse, check the master clock and the network.
Check that the network is not cut off.
Measure the in line intensity and check if it is enough (from 65
to 100 mA).
Lack of impulse since more than 1 hour, check the master
clock and the network.
No time message received for more than 24 hours, check the
master clock and the DHF transmitter or batteries have run
out then replace the batteries.
When locked to a transmitter, wireless
configuration is saved into the
EEPROM.
If, for any reason, you have to install the
clock again, shunt the two pins (P) for
more than 4 seconds to initialize
the clock again.
... Check.
DHF TBT Movement
EN
P
P
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