user manual

Page 20
MSL600
Installation, Operation & Maintenance Manual
IP262/Z0, Rev. AB
February 2012
5. Quick start parameters
The system leaves the factory with default values in all the parameters. These values, after installation, allow
immediate operation without any further programming. However, it is recommended for best operation that the
following parameters should be programmed.
In order to get meaningful measurements from the MSL600 in the minimum time only the following parameters
need to be adjusted.
5.1 Tank depth - Bottom reference
An accurate knowledge of the tank depth is a key parameter for the system.
The tank depth is the distance from the front face of the transducer to the bottom of the tank directly under the
transducer [see Figure (10)]. Where the tank bottom slopes, as is often the case, the sludge blanket level, Xm
indicated by the system is therefore relative to this zero reference level.
Figure (10): Tank depth parameter
The maximum tank depth that the system will measure is 7.000m (23.00 feet), the minimum is 1.000m (3.3 feet),
do not confuse this with the transducer blanking distance which is discussed elsewhere and is 0.3m (1 foot) by
default.
The tank depth value is stored in the system and used in subsequent calculations. The factory default is 7.000m
(23.00 feet), corresponding to the maximum depth of tank for which the system is specified.
When the unit is powered on for the first time the system makes measurements using this default. It will be
obvious that until the user enters a measured value certain functions, such as current output and displayed
blanket level will not be correct for the installation.
Tank depth
Sludge blanket interface Xm
0m tank depth