KMB NOVAR 2600, Руководство по эксплуатации

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NOVAR 2600 Operating Manual
5.2.2.4 Instrument Setting
In this group most of presetable parameters can be viewed and edited. Other parameters
can be accessed via communication link from a PC using ENVIS program only.
If any of setting window is viewed, an instrument automatically reswitches to actual data display during
an approx. 1 minute if no manipulation with buttons is carried out.
Following chapters explain the meaning of particular groups of parameters.
5.2.2.4.1 Display Setting
• Contrast … LCD display contrast in range 0÷100 %
•
Backlight
… LCD display backlight can be set as permanently on (
on
) or to auto-off mode
( auto ), in which it is switched off automatically during approx. 2 minutes if no button is
pressed to decrease the instrument power dissipation.
• Language … Except the basic English version, other national versions can be selected
• Display refresh cycle … Actual values refresh period. For details see chapter Display
Actual Values Evaluation and Aggregation .
• Display Resolution … Actual data format can be set to 3 or 4 significant figures ( exception :
not applicable for electric energy values ).
5.2.2.4.2 Installation Setting
All parameters of this group are explained in chapter Measured Electrical Quantities Installation Setup .
above ( the Commissioning part ).
5.2.2.4.3 Clock Setting
This setting is relevant for instrument models equipped with a
real time circuit ( RTC ).
•
Date & Time … Local date and time.
•
Time Zone … The time zone should be set according location of an instrument
during installation. Correct setting is essential for proper local time interpretation.
•
Daylight Saving … This option controls automatic winter/summer local time
switching.
•
Time Synchronization …
As the built-in real time circuit has limited accuracy while free
running, with this option it is possible to keep the RTC time in synchronism with an external
precise time source. The RTC can be synchronized by :
• Pulse Per Second / Minute ( PPS / PPM ) … A digital input is used for time
synchronization from an external source at this case. The instrument sets the RTC
to the nearest second or minute as soon as a synchronization pulse is detected.
Second-, Minute-, quarter-hour- or hour- synchronization pulses are accepted.
• NMEA Message ...If an instrument is equipped with the RS-232 or RS-485 remote
communication interface an external ( usually GPS-based ) time receiver can be
connected to. The receiver must be set to transmit the “ZDA”- or “RMC ”-message
(NMEA 0183 protocol). The communication interface must be set appropriately
(usually 4800 Bd, 8 bits, 1 stopbit).
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