PD6700 Field-Mount Loop-Powered Process Meter
Instruction Manual
16
Indication (
INDICAT
)
The
Indication
menu is used to enable and set up a
high or low alarm indication on the screen. When
alarm indication is enabled, the HI and LO symbols
are used accompanied by a flashing display.
Alarm (
alrm
)
•
High alarm trip point:
program set point
above reset point.
•
Low alarm trip point:
program set point
below reset point.
•
Alarm deadband is determined by the
difference between set and reset points.
Minimum deadband is one display count. If
set and
reset points are programmed the same,
output will reset one count below set point.
To acknowledge the alarm, press the
Enter
button
once for acknowledge prompt and a second time
to confirm.
Advanced Function Selection (
FUNCTN
)
The
Advanced Function
menu is used to select the
advanced function to be applied to the input: linear,
square root, or programmable exponent. The multi-
point linearization is part of the linear function
selection.
Meters are set up at the factory for linear function with
2-point linearization. The linear function provides a
display that is linear with respect to the input signal.
Multi-Point Linearization (
lnear
)
Up to 32 linearization points can be selected under
the
Linear
function. The multi-point linearization can
be used to linearize the display for non-linear signals
such as those from level transmitters used to
measure volume in odd-shaped tanks or to convert
level to flow using weirs and flumes that require a
complex exponent. These points are established via
direct entry (
SCALE
) or with a live calibration signal
source (
CAL
).
PD6700 Displaying Volume in Round Horizontal Tank
Using Multi-Point Linearization Feature
