Articles in this section

See more

Analog Clock setup

  • Updated
Follow

Model: 72MHz Analog Clock

To set up an Analog Clock, apply power to the clock and it automatically initializes its setup and searches for a signal from Transmitter to receive its time.

Sites with more than one Transmitter: It's very important to only insert a clock's batteries at its permanent install location.

An automatic setting model only has a button on the back of the clock. Primex first generation analog clocks, which are referred to as manual setting clocks and sold prior to 2005, have both a button and a gray set wheel on the back of the clock.

analog-clock-2nd-gen.png

Clock signal search frequency: time update

When a clock is first powered on, it automatically initializes its set up and searches for a signal to receive its time. The only model that requires a specific setup is a Manual Setting Analog Clock.

The scheduled search frequency varies by clock model as defined below.

Analog Clock signal search frequency:

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.

The type of antenna determines a Transmitter transmit (broadcast) schedule, which should be taken into consideration when installing new system devices. System devices receive a time update during its scheduled signal search or when powered on.

Note

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.

Clock install considerations: Transmitter with external antenna

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.

Confirm an analog clock is located in a good signal area

A clock should be tested at its final installation location to verify it can receive a signal from a Transmitter.

  1. At its installation location, press and IMMEDIATELY release the red button located on the backside of the clock and hang the clock in place.

    Note

    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.

  2. The clock scans all channels looking for a Transmitter signal. Once the clock finds a channel, a series of beeps emit from the clock.

Reset clock

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.

Identify Analog Clock model

Primex has two types of battery-operated analog clocks, an Automatic Setting Analog Clock (current generation) and Manual Setting Analog Clock (first generation sold up through 2005). Both clocks receive their signal from the Primex Transmitter in the same way, but the set up and operation of each clock model is different.

The type of model can be determined by viewing the back of the clock.

An automatic setting model only has a button on the back of the clock.

XR_Analog_Autoset.png

A manual setting model has both a button and a grey set wheel on the back of the clock.

XR_Analog_Manaul_set.png

Note

Manual set clocks only sync to Channels 1 -16. If there are XR Transmitters on site using a channel higher than Channel 16, Manual Setting Clocks will not be able to receive a signal to sync their time.

Related articles