PPCH-G™ OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company
Page 38
SETTING/SELECTION
PURPOSE
SET TO
SECTION
Resolution
Set pressure display resolution
10 ppm of AutoRange span or
1 ppm of default Q-RPT range,
whichever is larger.
3.4.2
Control mode
Select dynamic, static,
monotonic or ramp pressure
control
Dynamic control (standard, not
high volume)
3.2.2
Control parameters
Set dynamic, static, monotonic
and ramp control mode control
limits
See Table 8
3.2.2
3.4.6.1
Jog step
Set jog step size
100 ppm of AutoRange span
3.4.3
OPERATION
To use the AutoRange function, press
[AutoRange]
and respond to PPCH-G’s prompts.
Select measurement mode:
The screen is identical in appearance and function to the
[MODE]
screen (see Section 3.3.3). Absolute mode is not available if absolute mode is
turned off on all available Q-RPTs (see Section 5.2.5).
Select pressure unit of measure:
The screen is identical in appearance and function
to the
[UNIT]
screen (see Section 3.3.2).
Enter the AutoRange full scale pressure: Enter the desired full scale pressure
value in the <------>
entry field and press
[ENT]
. If the full scale pressure entered cannot
be covered by any of the Q-RPTs available, an error message is displayed. If the full
scale pressure can be covered by an available Q-RPT, AutoRange proceeds to the
range display.
View proposed AutoRange range:
The proposed AutoRange range screen is:
1.
Indication that this is a screen of the proposed AutoRange range.
2.
Designator and position of the Q-RPT that AutoRange has selected
to cover the AutoRange full scale and measurement mode.
3.
Pressure unit of measure specified in AutoRange.
4.
AutoRange full scale pressure in gauge mode and absolute mode if
available. Shows gauge only mode if absolute is OFF for the Q-
RPT.
AutoRange A140M X1H
MPa 100g/100a
If an external Q-RPT that should be available is not being selected by AutoRange, use [RPT] to
search for Q-RPTs and determine whether external Q-RPTs have been properly connected and
initialized (see Section 3.3.5). The PPCH-G utility sensor (IuH) cannot be AutoRanged.
Accept proposed AutoRange:
To accept the proposed AutoRange and go the MAIN
RUN screen with the AutoRanged range active, press
[ENT]
or
[AutoRange]
.
To modify the AutoRange full scale, measurement mode or pressure unit of measure,
use
[ESC]
to back up through the AutoRange screens and make changes.
If you would like to use a Q-RPT other than the one selected by AutoRange, use
[RPT]
or the
cursor control keys to toggle through the choices available. Only Q-RPTs that can cover the
specified full scale and measurement mode are offered. Press
[ENT]
or
[AutoRange]
when the desired Q-RPT is displayed.
