Honeywell RM640, Руководство пользователя

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6
OPERATION
102
RM640
www.honeywellprocess.com 34-VF-25-131 iss.1 GLO Feb 2019 US
6.4.2 Empty spectrum recording
The empty spectrum recording procedure is important for the performance of the device. We
recommend that the tank is empty or only filled to the minimum level before you do the
procedure.
Use this procedure (menu item A4.2 Empty Spectrum) if there are fixed and moving objects in the
tank that can cause interference signals. The device does a scan for objects that do not change
their vertical positions in the tank (heating tubes, agitators, fuel assemblies etc.) and records the
data. The device can then use this data to put the measurement signal through a filter (empty
spectrum).
When the empty spectrum filter is on (when menu item C2.8 Empty Spectrum Enable is set to
"Enable"), it will ignore the interference signals.
Before you do the empty spectrum recording procedure, install the device on the tank. For more
data about how to install the device, refer to
Installation on page 25.
Values and parameters that can be changed are shown between the
«
...
»
marks in the
illustrations that follow. Push the keypad buttons in the correct sequence:
Procedure
CAUTION!
Make sure that the tank is empty or only filled to the minimum level.
INFORMATION!
Because the device records the empty spectrum data, it is not necessary to do the procedure
again if you de-energize the device.
Screen Steps Description
•
2 × [>>>>], 2 × [ ] and [>>>>]. Default screen.
Enter Program mode and go to menu item
A3 Login.
•
If it is the default password: 2 × [>>>>],
5 × [
], [>>>>] and 8 × [ ]
•
[
^ ^ ^ ^
] to confirm.
Enter the password used at this time for
the "Expert" access level. If it is the default
password, enter "0058".