Model: 72MHz Analog Clock
Refer to the Important Safety Instructions before installing, operating, or performing clock maintenance.
Before installing a clock, verify the main Transmitter is operating properly and transmitting a signal with adequate building coverage. The transmit (broadcast) schedule varies by Transmitter model.
Clocks must be installed at a location within adequate transmission range of the Transmitter.
Sites with more than one Transmitter, it's very important to only insert a clock's batteries at its permanent install location.
Any damage to the clock due to improper wiring voids the warranty. It is at Primex discretion as to whether damage to the clock was caused by improper wiring.
When a clock is first powered on, it automatically initializes its setup and searches for a signal from a Transmitter to receive its time.
After a clock is powered on it then searches for a signal at six pre-scheduled times a day, at 2:01 AM/PM, 6:01 AM/PM, and 10:01 AM/PM clock time (not the actual time of the day), a clock's receiver turns on to search for a Transmitter signal to receive a time update, starting with the previously stored channel number. If a signal is not received from the first channel, the clock scans all channels to search for a signal.
To manually reset a clock after installation, simply remove its power source for at least 10 seconds and then reapply its power source. The clock automatically searches for a signal and resets its time when it receives a signal.
When a clock has not received a valid signal/time update for three consecutive days, it displays a visual signal loss indicator; an analog clock's second-hand advances and pauses continuously (stepping) and a digital clock/timer's colons flash. A clock may display the correct time, but it's not synchronized and its time may drift.
The type of antenna determines when a Transmitter transmits synchronized time updates, which should be taken into consideration when installing new devices.
Transmitter with Internal Antenna: transmits (broadcasts) synchronized time continuously to the system clocks and devices.
Transmitter with an external antenna: transmits (broadcasts) synchronized time to the system clocks and devices from the 39th to the 6th minute of the next hour and changes to a standby mode during the 7th to the 38th minute of the hour (standard broadcast schedule). During initial power-up, the Transmitter transmits a signal for 8 consecutive hours. After the 8 hour power-up period, the Transmitter reverts to its timed transmit schedule. Power-cycling a Transmitter will set it into an 8 hour continuous transmit schedule.
If installing clocks after the initial Transmitter 8-hour power-up transmission, there are three options.
Install clocks between 39 minutes past the hour and 6 minutes after the next hour. They will set right away.
Install the clocks at any time of the day. They will set their time at the next 39 minutes after the hour.
Power cycle the Transmitter. It will then broadcast for 8 consecutive hours and clocks will set immediately on power-up.
In the event of a facility-wide power outage, a Transmitter with an external antenna will transmit a signal for 8 hours upon the restoration of power. This will synchronize all devices. In the event power to a Transmitter is turned off and turned back on (power-cycled), the Transmitter will transmit a signal continuously for 8 hours. Power-cycling a Transmitter can be used to set/reset system devices. Do not power-cycle a Transmitter when it's in an error status; refer to troubleshooting to resolve the error status.
A clock should be tested at its final installation location to verify it can receive a signal from a Transmitter.
At its installation location, press and IMMEDIATELY release the red button located on the backside of the clock and hang the clock in place.
When clocks are being installed or signal tested, it's very important not to hold the button down too long or the hands will proceed to the 12 o'clock position and remain there indefinitely. If this should happen, remove its batteries and wait 10 seconds, and then re-insert the batteries. The clock will self initialize and set to the correct time.
The clock scans all channels looking for a Transmitter signal. Once the clock finds a channel, a series of beeps emit from the clock.
If a signal is received: clock emits a beep once per second, for one minute, every time a valid packet is decoded. The clock hands automatically adjust to the correct time.
If the clock is in a marginal signal area: the clock emits a beep once every few seconds. Battery operated models will work in marginal signal areas, but may result in reduced battery life.
No beeping: indicates a signal is not received from the Transmitter