Hach HART Manuel D'utilisation page 10

Operation
Configure a HART module
The Network Setup option appears in the Settings Menu only if a HART
module or other network module such as Modbus, Profibus or 4-20 mA
is installed in the controller.
The range on the HART module is set at 4-20 mA. Each of the outputs
can be assigned to represent a measured parameter from a sensor that
is connected to the controller such as pH, temperature, flow or
calculated values.
1. From the Settings menu, select Network Setup.
2. Select Edit Name and enter a name for the module. Push ENTER to
save the name.
3. Select an output (A, B, C) and push ENTER.
Note: Only outputs A and B can be configured for HART communications.
a. Highlight an option and push ENTER.
b. Make a selection from the list or update the entries.
c. Push ENTER to save the changes.
Option Description
Select Source Selects the sensor to be represented on the selected output
—None, sensor 1 name, sensor 2 name, calculation (if set
up). For sensor output, Select Parameter sets the
measurement options. When the measurement is
autorange, Set Range sets the range.
Set Low Sets the measured value from the sensor to be represented
Value by a 4 mA signal (default: 0.000). (Range and units depend
on sensor)
Set High Sets the measured value from the sensor to be represented
Value by a 20 mA signal (default: 1.000). (Range and units
depend on sensor)
10 English
Option Description
Set Transfer Sets the transfer value. Range 3.0 to 23.0 mA (default
4.000). If a device malfunction is detected, the output goes
to the user-selected transfer value.
Note: In addition, the transfer value can be set during a
sensor calibration or maintenance (Diag/Test>Hold
Outputs).
Set Filter Sets a time-average filter value of 0 (default) to
120 seconds.
Set HART Sets the HART address for the selected output channel.
Address Range 0 to 63.
Diagnostics and tests menu
1. From the Settings menu, select Network Setup>Diag/Test.
2. Select an option and push ENTER to perform the function or view the
data.
Option Description
Output Cal Calibrates the low (4 mA) and high (20 mA) values for
each of the three 4-20 mA outputs (A, B, C).
Adjust the DAC counts until a connected multimeter
reads the applicable output value. The default DAC
counts are:
• Output A—2807 for 4 mA, 14046 for 20 mA
• Output B—2797 for 4 mA, 14109 for 20 mA
• Output C—2641 for 4 mA, 13294 for 20 mA
Hold output Sets the hold output options to Hold, Transfer or
Release for each of the three 4-20 mA outputs (A, B,
C).
Test output Drives selected output to a simulated value.
Status Displays the output value.
Error hold mode Selects the behavior of the output in an error condition.