WESTERSTRAND Wireless Clock User manual

INTELLIGENT MOVEMENTS
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WESTERSTRAND URFABRIK AB
P.O. Box 133 Tel. [phone] Internet:: http://www.westerstrand.se
SE- 4 23 TÖREBODA Fax. [phone] E-mail: [email protected]
Battery operated indoor
Wireless Clock
Installation Manual

INTELLIGENT MOVEMENTS
Document:
1
979
en0
1
.doc
Author:
PM
Date:
1
Sep 2016
Page:
2
of
3
WESTERSTRAND URFABRIK AB
P.O. Box 133 Tel. [phone] Internet:: http://www.westerstrand.se
SE- 4 23 TÖREBODA Fax. [phone] E-mail: [email protected]
General
The Wireless clock, which is a part of Westerstrand Wireless Clock System, is a fully automatic battery
operated analogue clock with built in microcontroller and UHF receiver.
Installation single sided clock
Please make sure that the transmitter is switched on before installation of the clocks.
Insert the batteries, alkaline batteries 3 x 1.5V size LR14/C and mount the clock on the wall.

INTELLIGENT MOVEMENTS
Document:
1
979
en0
1
.doc
Author:
PM
Date:
1
Sep 2016
Page:
3
of
3
WESTERSTRAND URFABRIK AB
P.O. Box 133 Tel. [phone] Internet:: http://www.westerstrand.se
SE- 4 23 TÖREBODA Fax. [phone] E-mail: [email protected]
Synchronisation
After insertion of the batteries, the hands are driven to one of the positions 4:00, 8:00 or 12:00, depending on
which is the closest to the actual hand position.
When the hands have reached this position the motors will be stopped and the time code detector is switched on.
The hands will not move until the time code has been accepted. After the receiving process has finished the
hands are driven to show the correct time and the movement starts normal run.
During normal run the movement synchronises every two hours.
A correction is done if necessary (when a difference between received time and displayed time occurs). The
correct position of the hands is checked two times per day.
In case the UHF-signal would disappear, the clock continues by means of the built-in quartz crystal.
Technical data
UHF Receiver
Frequency 869.525 MHz
Sensitivity 1µV (-107 dBm)
Demodulation FSK +/- 25 kHz
Batteries Alkaline batteries 3 x 1.5V size LR14/C
Estimated running time (up to) 5 years
Working temperature -5 °C - +55 °C
Receiving time (first receive) 3 min. -
Adjusting time (excl. receive) max. 3min 10 sec.