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MSL600
Installation, Operation & Maintenance Manual
IP262/Z0, Rev. AB
February 2012
5.2 Determination of tank depth
The ultimate blanket level measurement accuracy depends upon the accuracy of the value entered for the tank
depth. It is always recommended that this be determined for every installation by the user using a measuring rod
or similar. Alternatively, the user can obtain a workable estimate of the tank depth by adjusting the tank depth
value Off line using the HMI and positioning the bottom echo at the bottom of the profile display.
This only works if a bottom echo is visible and the user must be sure that the echo he is positioning does actually
correspond to the tank bottom. To do this, follow the procedure below:
1. From the normal display, press .
2. The main menu will appear on the upper right of the display.
3. Highlight the Go Off line menu option and press . The padlock will open.
4. Press Esc to return to the main menu.
5. Use the n and p keys highlight the INSTALLATION menu option and press .
6. Highlight the Tank depth option and press .
7. To edit the depth press .
8. Use the n and p keys to increment and decrement the highlighted digit.
9. Use the m and o keys to move from one digit to the next.
10. When editing has finished press to save the value.
11. The large echo (in most cases this represents the bottom of the tank that the transducer is positioned over)
on the lower left display will move.
12. Repeat steps 7 to 11 as necessary.
13. When this echo appears at the bottom of the display the tank depth is set.
14. ESC to return to main menu.
Please note that to avoid confusing echoes this procedure should be carried out when there is no significant
sludge blanket in the tank.
5.3 Transducer self-cleaning
The transducer self-cleaning is pre-programmed for optimal performance. However, the cleaning cycle can be
changed by following the procedure set out below.
In order to access the transducer cleaning parameters follow the following programming sequence:
1. Press to access the main menu.
2. The main menu will appear on the upper right of the display.
3. Highlight the Go Off line menu option and press . The padlock will open.
4. Press Esc to return to the main menu.
5. Use the n and p keys to highlight the SETUP menu option and press .
6. Highlight the DUTY (mode) menu option and press .
7. Highlight the CLEANING menu option and press .
8. Highlight the Start On menu option and press .
9. Use the n and p keys to highlight the required option and press .
Three options are available;
• Auto Clean - This is the default option and means that the MSL600 will automatically carry out a cleaning
cycle for 10 seconds on the hour every hour.
• Manual 5s - This allows the user to manually activate a 5 second cleaning cycle at any time after which the
cycle returns to its previous setting (note, the unit must be on line to carry out this process).
• Off - The unit will not perform any cleaning cycles.