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™ PD6210 Analog Input Batch Controller
Instruction Manual
48
Select Menu (
SElEct
)
The
Select
menu is used to select the input signal
conditioner applied to the input (linear, square root, or
programmable exponent), low-flow cutoff, and analog
output programming. The multi-point linearization is
part of the linear function selection.
Input Signal Conditioning
(
Functn
)
The
Function
menu is used to select the input signal
conditioner applied to the input: linear, square root, or
programmable exponent. The multi-point linearization
is part of the linear function selection.
Controllers 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.
Square Root Linearization
(
Square
)
The square root function can be used to linearize the
signal from a differential pressure transmitter and
display flow rate in engineering units.
Programmable Exponent
Linearization (
Prog E
)
The programmable exponent can be used to linearize
the signal from level transmitters in open-channel flow
applications using weirs and flumes.
Multi-Point Linearization
(
Linear
)
Controllers are set up at the factory for linear function
with 2-point linearization. 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 with complex exponent.
Low-Flow Cutoff (
CutofF
)
The low-flow cutoff feature allows the controller to be
programmed so that the often-unsteady output from a
differential pressure transmitter, at low flow rates,
always displays zero on the controller. The cutoff can
be disabled to display negative values.
The cutoff value may be programmed from 0.1 to
999999. The controller will display zero below the
cutoff value. Programming the cutoff value to zero
disables the cutoff feature. The cutoff can be disabled
to display negative values.
Total and Grand Total Count
Direction (
Count
)
By default, the batch total and grand total count up
during batch processes.
Count
parameter allows this
to change. When set to count down, the batch total
will count down from the preset to 0. When set to
count down, the grand total will count down from a
starting value to zero.
Analog Output Programming
(
AoutPr
)
The
Analog Output Programming
menu is used to
program the behavior of the 4-20 mA output. The
following parameters and functions are programmed
in this menu:
1. Source: Source for generating the 4-20 mA
output (e.g. PV)
2. Overrange: Analog output value with display in
overrange condition
3. Underrange: Analog output value with display in
underrange condition
4. Break: Analog output value when loop break is
detected
5. Max: Maximum analog output value allowed
regardless of input
6. Min: Minimum analog output value allowed
regardless of input
7. Calibrate: Calibrate the internal 4-20 mA source
reference used to scale the 4-20 mA output
Analog Output Source
The source for generating the 4-20 mA output may be
assigned to the rate/process variable, total, grand
total, maximum or minimum value reached by the
rate/process, one of the set points, or the Modbus PV
input.
