DH Instruments PPC4, Operation And Maintenance Manual

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PPC4™ OPERATION AND MAINTENANCE MANUAL
© 2009 DH Instruments, a Fluke Company Page 60
P R E S S U R E 1 U N I T M h z R R H
T P R E S S U R E 2 C C
DISPLAY FIELD NAME PURPOSE CONTENTS SECTION
1. PRESSURE1 Measured
pressure Displays pressure
measured by active
Q-RPT Numerical pressure
value and sign 1.2.2.1
1.2.2.2
3.2.12
2. UNIT Unit of
measure Identifies pressure
unit of measure in
which PRESSURE1
and PRESSURE2
are displayed Pressure unit of
measure abbreviation 3.2.10
3. M Measurement
mode Identifies
measurement mode
of displayed pressure <a> : absolute
<g> : gauge or
negative gauge
3.2.11
4. h Head
pressure
indicator Indicates whether a
fluid head correction
is applied to
PRESSURE1 <h> : the fluid head
is not zero
<blank> : fluid head is
zero
3.2.16
5. z AutoZero
indicator Indicates whether
the AutoZero
function is ON or
OFF <z> : AutoZ is ON
<blank> : AutoZ is OFF
3.2.22
6. RRH Active Q-
RPT position
indicator Indicates the position
of the active utility
sensor or Q-RPT in
the PPC4 system <IH> : Internal Hi
<IuH> : Internal Hi
(utility sensor)
<X1H> : External Hi
<X1L> : External Lo
3.2.5
78. CC Pressure
control
indicator Indicates type of
pressure control,
whether control is
currently active and
whether custom
control limits are in use
<D> : Control mode is
dynamic
<S> : Control mode is
static
<C> i s appended to the
<D> or <S> if control
limits are custom
Control character(s)
flash if PPC4 is actively
controlling
3.2.2
3.2.13
8. TPRESSURE2 Pressure
information
indicatior Pressure indication
depending on current
PPC4 function.
Leading character
identifies the value. <R> : Pressure rate of
change in current
pressure unit/second
<T> : Pressure control
target
<D> : Deviation from the
pressure control
target
3.2.12
Figure 9. Main Run Screen Display Fields