Page 57 of 85
viasis 3003 user manual
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traffic
controlling
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A call of the menu items
Date
and
Time
is refused by the viasis as long as measurement data
are stored. This to avoid inconsistent measurement sequences, which may cause later problems
during the data evaluation. In case you receive the message „
Access impossible!
“ if you try to
change system date or time then download and store the measurement data first. Erase the data
and hereafter the change of time and date will be possible.
The real time clock of the viasis never stops and works continuously with the internal lithium
buffer battery if the lead-gel main battery is removed. The operating time of the lithium battery
is minimum 7.5 years. As more often the viasis is in operation, supplied from the main battery
as longer lasts the lithium buffer battery.
6.5.4 Daylight saving time
By pressing the key
5
for the
Daylight saving time
in the menu
Information and time
you can
define its use. In the European Community the daylight saving time is used uniquely from the
last Sunday in March till the last Sunday in October. The changes occur uniquely in all member
states at 01:00 UTC (universal time) time.
In the displayed sub menu, please select the correct time zone for your country:
Daylight saving time:
1. off
2. UTC+0
3. UTC+1
4. UTC+2
Your choice 1...4?
For the United Kingdom, Ireland, Portugal please choose “UTC+0”, for Spain, France, Ger-
many, Poland “UTC+1” and for Greece and Finland “UTC+2”. For countries in time zone
“UTC+1” (MEZ) the clock will be altered from 02:00 to 03:00 local time in March and from
03:00 to 02:00 local time in October.
The selection
1
in the menu will switch the daylight saving time (Summer Time) off.
6.6 Online measurement
The transfer of currently measured speed data over a serial data connection (cable RS232,
USB or by radio Bluetooth and GSM modem) is done if you select the
Online measurement
in the viasis main menu.
After the hint
<Quit with return>
sends the viasis vehicle speed data synchronous to the
measure cycle all 1.5 seconds as long as a vehicle passes the radar beam towards the viasis.
If the option
Bidirectional Detection
in the
Settings
menu is activated, see also chapter 6.3.3,
additionally the speed data of vehicles passing the radar beam away from the speed display are
send headed by a minus sign ‘-‘.
The speed data are send as ASCII numbers, with variable width, what means one till three dig-
its, followed by the control characters carriage return (hex 0x0A) and line feed (hex 0x0D),
what means one speed number per line.
So far the numeric display was not deactivated by the parameter
LED display: off
, see chapter
6.3.2.1, the speed measurements are also still shown on the numeric LED display.
