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Reference Manual
IP2048/RM, Rev AA
Section 5: Service and Troubleshooting
February 2015
To change the frequency
1. After entering the “Eng” menu (see the note above), press the green button
repeatedly until “F” is indicated.
2. Press the blue button
to enter the frequency menu. The display indicates the present
frequency setting.
3. If this frequency is correct, press the red button
to exit to the menu.
(The menu option “F” re-appears. To get to the next menu, press
).
4. Press the blue button
to start the editing mode. The present frequency setting
flashes to indicate it can be edited.
5. Press the green button
repeatedly to scroll through available options (49 to 58 kHz).
(To restore the “Auto” setting, scroll past “58 kHz” and press the red button
to save
and exit).
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 “F” re-appears to re-start at step (2) or press
for the next menu.
5.4.6 Setting the pulse repetition frequency
Screen display: Prf
Factory default value: 1.0
The rate of pulses transmitted is set at a factory default value of once-per-second.
The transmitter may be set to transmit faster or slower at selectable repetition rates between
0.5 and 2.0 times per second.
Note
The is also the ‘cycle time’ of the transmitter.
The pulse repetition frequency may be changed to overcome cross talk problems if more than
one ultrasonic transmitter is mounted in the same tank.
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.