Simex SWZ-W610, Руководство пользователя

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User manual for digital clock SWZ-W610
If displaying periods of all readings are set to zero, then successive pressing of
“ENTER”
button switches readings, and they are displayed permanently.
All accessible parameters can be changed by entering the menu (see: DEVICE
PROGRAMMING
). Use the local keyboard or the remote controller to do it. (Note: all
parameters can be remote changed via RS-485 interface).
Configuration of the device (via menu or RS 485 interface) do not stops device .
6.2. THERMOMETER FUNCTION
The
SWZ-W610
is equipped with {
THERM
} input. It allows to connect digital thermometer
module (optional) to the device. To enable displaying of temperature in the sequence, the
thermometer function must be on (parameter
”thEr”
of
”Func”
menu set to
”on”
). Parameter
”dL t” (available only while thermometer function is on) defines display time of temperature.
6.2.1. Temperature sensor module installation
Avoid of mounting
the module near of the doors, windows (specially near of rooms with
different temperature), in places of high air flow, sunny places and near of artificial light
sources (like bulbs) etc.
Due to possibility of electromagnetic noise while using long connection wires,
a temperature sensor should be equipped with denoising filter.
Figure 6.1. Connection of temperature sensor module to SWZ-W610
6.3. SYNCHRONIZATION OF THE CLOCK WITH DCF77 SIGNAL
The DCF77 is a radio signal contained informations about current time (central Europe).
Sending time is official UE time. Amplitude modulated signal is sent in LW band on 77.5 kHz
frequency. The transmitter is placed in Mainflingen, near of Frankfurt (Germany), and has
about 2500km of coverage (power about 50 kW). There are coded informations about current
hour, minute, date, day of week in the signal, and they are synchronized to high-precision
atomic time standard. One data pocket is transmitted over 59 seconds.
6.3.1. Installation of DCF77 module
To obtain proper reception of DCF77 signal, correct location and orientation of receiver
aerial is essential. Due to DCF77 receivers are usually sensitive to electromagnetic noise (also
generated by computers, monitors, TV sets, motors and other devices), it is recommended to
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GND
temperature
sensor
module
data line
i
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