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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

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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

4–20 mA activation options

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 up

the calculation

on page 11.

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

Set the error hold mode

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