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

Страница: 41 / 126

3. OPERATION
Page 31 © 2009 DH Instruments, a Fluke Company
Table 4. Summary of RPM4-E-DWT function key operation
DIRECT FUNCTION KEYS ARE ACTIVE FROM THE MAIN RUN SCREEN
See corresponding manual sections for full detail.
Adjust height of fluid head correction.
Set to zero to defeat correction. View active range and toggle through available
ranges.
[ENT] on a range activates it.
Feature not used in RPM4-E-DWT.
Select pressure unit of measure for the active
range. Choice of units available in this menu
can be customized.
Run the AutoZ function to AutoZero
the active Q-RPT. Not used. E-DWT-H RPM4-E-DWT is gauge
mode only.
Set up and optimize RPM4-E-DWT
features for a specific operating range. Menu of less commonly used internal functions
and settings.
Run automated leak checking routine.
Menu of commonly used setup features including
save/delete AutoRange ranges, set display
resolution, set stability limit, set upper/lower limit,
view AutoTest data
Select the display function for the
bottom line of the RPM4-E-DWT
display. Start or set functions such AutoTest, Leak
Check and Freeze. ENTER values when
editing.
3.7.2 [RANGE]

PURPOSE
To view and/or change the active pressure measurement range and associated settings.
 PRINCIPLE
An RPM4-E-DWT range is defined as a pressure span and associated settings (see Section
3.1.1).
The RPM4-E-DWT has one or two Q-RPTs. Each Q-RPT has a default range which is its
maximum span. Additional ranges, lower than the Q-RPT’s maximum span, may be created
at any time using AutoRange (see Section 3.7.5) or AutoTest (see Section 3.1.3). Ranges
created using AutoRange or AutoTest may be saved, with their settings, for reactivation (see
Section 3.8.1).
The [RANGE] function key allows the available RPM4-E-DWT pressure ranges to be viewed
and selected.
 OPERATION
Pressing the [RANGE] function key activates the range viewing and selecting function.
When the [RANGE] function key is first pressed, the active range is displayed. For example:
1. Q-RPT designator.
2. Type of range. DF for the Q-RPT’s default range; AR for a range
created by AutoRange.
3. Q-RPT position designator.
4. Current pressure unit of measure.
5. Full scale pressure in current unit of measure.
Active A70M DF Hi
bar 700g
Pressing the [RANGE] key again while in the RANGE functions toggles through displays of
the other available ranges, from lowest range to highest range.
To select a range to become the active range, press [ENT] while the range is displayed.