Time and frequency monitoring and synchronisation control clocks - relay contact functions
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Function action
Power Contacts are closed while power is present. Contacts open when the power supply is removed.
Error Contacts are closed with the master clock is synchronised to an external source. Contacts open while the unit is unsynchronised.
5 seconds 100mS contact closure every 5 seconds.
1 Minute 100mS contact closure every minute.
1 hour 100mS contact closure every hour.
Programmable 100mS contact closure once per day, at a time programmable in hours and minute.
Frequency above limit Contacts are closed when the measured frequency is above a user defined pre-set limit.
Frequency below limit Contacts are closed when the measured frequency is below a user defined pre-set limit.
Time difference above limit Contacts are closed when the time difference is above a user defined pre-set limit.
Time difference below limit Contacts are closed when the time difference is below a user defined pre-set limit.