Empty Spectrum Recording - Ametek DR6500 Handbook

DR6500
Screen

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.
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.
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
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:
DR6500-PM-English-Issue 1
Steps
•
[ ] or [ ] for the selection of the
error function (Off, Hold, High or
Low).
•
[^ ^ ^ ^ ] to confirm.
•
3 × [^ ^ ^ ^ ] to confirm.
•
[ ] or [ ] for the selection of the
save option (Yes, No or Back).
•
[^ ^ ^ ^ ] to confirm.
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Error Function. This sets the behaviour of
current output 1 if an error occurs.
If this menu item is set to "Off", no signal is
given (this parameter is not available if
menu item C4.1.4 is set to "3.8-20.5 mA"
(NAMUR) or "3.8-20.5 mA (reversed)"). If
this menu item is set to "Hold", the output
current stays at the value where the error
occurred (this parameter is not available if
menu item C4.1.4 is set to "3.8-20.5 mA"
(NAMUR) or "3.8-20.5 mA (reversed)"). If
this menu item is set to "Low", the output
current changes to 3.5 mA (default value) if
an error occurs. If this menu item is set to
"High", the output current changes to
21.5 mA (default value) if an error occurs.
Save Configuration? screen. Save Configuration?
Save Configuration? Save Configuration?
Set to "Yes" to save and use the settings
and data and go back to Normal mode. Set
to "No" to cancel the changes to the device
settings and go back to Normal mode. Set
to "Back" to stay in Program mode.
Installation
on page 22.
OPERATION
Description
6
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