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Reference Manual
IP2048/RM, Rev AA
Section 5: Service and Troubleshooting
February 2015
7. If the new setting is correct, press the red button to save. The display changes to the
next menu option.
8. If the new setting is incorrect, press the blue button
to exit to the menu.
9. The menu “Stir” re-appears to re-start at step (2) or press
for the next menu.
5.4.8 Setting Spike Rejection
Screen display: SPi
Factory default value: 0 (disabled)
In applications with high levels of acoustic or electrical noise, a spike could incorrectly trigger
the echo detection system. The value of SPi can be increased (0 to 100) and has the effect of
rejecting spikes. Several different values may have to be tried to determine the best option.
Note
This menu option is in the engineering menu “Eng”. See “Accessing the engineering
menu” on page 49 or see Figure C-3 on page 79 for a map of the menu structure.
To change the spike rejection
1. After entering the “Eng” menu (see the note above), press the green button
repeatedly until “SPi” is indicated.
2. Press the blue button
to enter the spike rejection menu. The display indicates the
present SPi value.
3. If this SPi is correct, press the red button
to exit to the main menu.
(The menu option “SPi” re-appears”. Press
to get to the next menu).
4. Press the blue button
to start the editing mode. The SPi flashes to indicate it can
be edited.
5. Press the green button
repeatedly to scroll through the options available (1 to 100).
6. Press the blue button
to confirm the new setting. (The flashing stops).
7. If the new setting is correct, press the red button
to save. The display changes to the
next menu option.
8. If the new setting is incorrect, press the blue button
to exit to the menu.
9. The menu “SPi” re-appears to re-start at step (2) or press
for next menu.