PCE Instruments PCE-VM 40A, Руководство пользователя

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Manual
27
Date and time
To retrace vibration events in the saved values, the exact date and time are important. To set the date
and time, open the main menu by pressing F3. From the main menu,
go to the menu option “Device
settings” and press OK. From within this sub-menu, go to “Date and time”.
Use the ▲ and ▼ keys to change the flashing value and with the ◄ and ► keys, move between second,
hour, minute, month, day and year.
The date also takes the leap year into account.
In the same menu,
you can also correct clock inaccuracy. This can be done using the setting at “Cal.” in
ppm (parts per million). The clock frequency can be increased with positive values and decreased with
negative values. The symbol is changed to minus at +254 ppm.
Example: The clock is 5 seconds slow. There are 24 * 60 * 60 s = 86400 seconds in a day. The difference
amounts to 5 s / 86400 s = 58 * 10-6 = 58 ppm. The adjustable value is -58 ppm. Press OK to apply the
settings.
Instrument name
The PCE-VM 40 can be given an individual name, which, for example, identifies the location of
installation. The instrument name is retrievable via the USB interface and is also used for the SMS alerts
(PCE-VM 40B).
In order to change the name,
open the main menu, go to “Device settings” and then to “Device name”.
Using the arrow keys, you can enter up to 20 upper case characters and digits.
Language
Enter the sub-
menu “Menu language” in the “Device Settings”, where you can select between German
and English.