Manage devices, Set up the calculation, Configure the outputs – Hach-Lange HACH 5500 sc PO43-LR Operations User Manual
Page 11: 4–20 ma module setup, Refer to, Manage, Devices, Setup and the error hold mode. refer to, Configure, The outputs
Manage devices
Install or remove input modules.
1. Select MANAGE DEVICES.
2. Select an option.
Option
Description
SCAN FOR
DEVICES
The system shows the connected devices.
Note: If no device is connected, the system returns to
the main measurement screen.
DELETE DEVICE
Removes the device when the device is no longer
connected.
Set up the calculation
Set up variables, parameters, units and formulas for the analyzer.
1. Select CALCULATION.
2. Select an option.
Option
Description
SET VARIABLE X
Selects the sensor referring to the variable X.
SET PARAMETER X Selects the parameter referring to the variable X.
SET VARIABLE Y
Selects the sensor referring to the variable Y.
SET PARAMETER Y Selects the parameter referring to the variable Y.
SET FORMULA
Selects the calculation formula to complete. Options:
None, X-Y, X+Y, X/Y, [X/Y]%, [X+Y]/2, X*Y, [X-Y]%/X
DISPLAY FORMAT
Selects the number of decimal places shown in a
calculation result. Options: Auto, XXXXX, XXXX.X,
XXX.XX, XX.XXX, X.XXXX
SET UNITS
Enters the unit name (maximum of 5 characters).
SET PARAMETER
Enters the measurement name (maximum of
5 characters).
Configure the outputs
4–20 mA module setup
1. Select SETUP SYSTEM>SETUP OUTPUTS>4–20mA SETUP.
2. Select the OUTPUT.
3. Select an option.
Option
Description
ACTIVATION
The menu list items change with the selected function.
Refer to
on page 12 for
more information.
SELECT
SOURCE
Select the output. Options: None if the output is not
configured, the analyzer name or calculation if a
calculation formula has been configured. Refer to
SET
PARAMETER
Select the measurement channel from the list.
SET FUNCTION
Select a function. Further options will vary depending on
which function is chosen. LINEAR CONTROL—Signal is
linearly dependent on the process value. PID
CONTROL—Signal works as a PID (Proportional,
Integral, Derivative) controller. LOGARITHMIC—Signal
is represented logarithmically within the process variable
range. BILINEAR—Signal is represented as two linear
segments within the process variable range.
SET TRANSFER
If TRANSFER is or will be selected as the ERROR
HOLD MODE, select SET TRANSFER and enter the
transfer value. Range: 3.0 to 23.0 mA (default = 4.000).
Refer to
on page 14.
SET FILTER
Enter the filter value. This is a time-average filter value
of 0 to 120 seconds (default = 0).
SCALE 0mA/4mA Select the scale (0–20 mA or 4–20 mA).
English 11