Thermo Scientific DensityPRO, Application Manual

Page: 50 / 101

Diagnostics
Loop Test
6. Current output setup is complete. The loop may be returned to
automatic control.
Loop Test
The Loop Test function allows you to manually manipulate the analog
output to a selected constant output value.
1. In the NI-FBUS Configurator, go to AI_TRANSDUCER > Root
Menu > 6 Diag/Service > 2 Loop Test > Loop test .
2. When prompted, remove the loop from automatic control.
3. There are four selections shown.
a. Selection 1 – 4 mA: Enter 1 to fix the device at 4 mA.
b. Selection 2 – 20 mA: Enter 2 to fix the device at 20 mA.
c. Selection 3 – Other: Enter 3 to fix the device at a value you enter.
d. Selection 4 – End: Enter 4 to exit the menu.
Enter the selection you want.
4. When prompted, confirm the selection you made.
5. The method has completed. Loop may be returned to automatic
control.
Trim Analog
Output
The trim analog output function allows you to confirm that the current
output value of the reference meter can be adjusted to match the set value.
1. In the NI-FBUS Configurator, go to AI_TRANSDUCER > Root
Menu > 6 Diag/Service > 3 Trim Analog Output > Trim analog
output
.
2. When prompted, remove the loop from automatic control.
3. Connect the reference meter. The output will be set to the minimum
current value.
4. Enter meter value: Enter the value displayed by the reference meter.
8-2 DensityPRO with F
OUNDATION
™ fieldbus Application Guide Thermo Fisher Scientific