DH Instruments E-DWT-H, Руководство по эксплуатации и обслуживанию

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3. OPERATION
Page 61 © 2009 DH Instruments, a Fluke Company
3.9.3 <3HEAD>
 PURPOSE
To view or change the properties of the HEAD function (see Section 3.7.8) including the unit of
measure of length for head height entry and the test fluid type and species for density
calculations.
 OPERATION
From the MAIN RUN screen, press [SPECIAL] , <3Head> .
Select the desired height unit of measure and press [ENT] .
Select <1gas> or <2liqud> depending on the pressurized medium between the
RPM4-E-DWT and the height at which pressure is to be calculated. Select the gas or liquid
species. The liquid selection
<3User> , is to create a custom liquid with a user entered
density.
Use [HEAD] to set a head height if desired.
3.9.4 <4SDS>
 PURPOSE
This feature is not used in RPM4-E-DWT A70M/A7M-AF.
3.9.5 <5prefs>
 PURPOSE
To access a menu of RPM4-E-DWT operational preferences and functions.
 OPERATION
To access the PREFS menu press [SPECIAL] ,
<5prefs> . The display is:
1ScrSvr 2sound 3time
4ID 5level
The PREFS menu includes:
<1ScrSvr> View and change the screen saver activation time (see Section 3.9.5.1).
<2sound> View and change the key press sounds (see Section 3.9.5.2).
<3time> View and edit the internal time and date settings (see Section 3.9.5.3).
<4ID> View the RPM4-E-DWT serial number (SN) and view or edit the ID number
(see Section 3.9.5.4).
<4level> View and set the user security level and/or password (see Section 3.9.5.5).
3.9.5.1 <1SCRSVR>
 PURPOSE
To adjust the idle time after which RPM4-E-DWT’s SCREEN SAVER activates.
 PRINCIPLE
RPM4-E-DWT has a SCREEN SAVER function which causes the display to dim
after a front panel key is NOT pressed for a certain amount of time. The default is
for the screen saver to activate after 10 idle minutes. The screen saver activation
time can be adjusted by the user or screen saving can be completely eliminated.