Precision Digital PD6200 - Manual (Page 80)

Model PD6200 Analog Input Rate/Totalizer Instruction Manual
80
Low-Flow Cutoff (CutofF)
The low-flow cutoff feature allows the meter to be programmed so that
the often-unsteady output from a differential pressure transmitter, at low
flow rates, always displays zero on the meter.
The cutoff value may be programmed from 0 to 999999. The meter will
display zero below the cutoff value. Programming the cutoff value to zero
disables the cutoff feature.
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 pro-
grammed 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, or one of the set points, or the Modbus PV
input.
rate
Source
Source
AoutPr
Set Points
1 - 8
tot
Source
gtotal
Source
min
Source
max
Source
mbus
Source
Analog Output Calibration
To perform the analog output calibration it’s recommended to use a mil-
liamp meter with a resolution of at least 0.1 µA to measure the output
current. The values saved internally during this procedure are used for
scaling the 4-20 mA output in the Setup menu.