Xylem H-3531 FlashLite - Manual (Page 20)

2-8 Installation
H-3531
With these values the Stage will be in units of feet when used in clean water. The slope can be
changed to accommodate other engineering units such as inches or meters. The setups are stored
in EEPROM within the H-3531 FlashLite™ and will not be lost if the power is disconnected. The
extended commands for changing these setups are described in detail in Chapter 5 and most of
these settings can be changed using the simple RS232 menu, see Chapter 4.
MeanCount is the number of raw pressure measurements averaged together to make one
measurement sequence. This setting determines how long the sensor will take to make a
measurement. MeanCount can be changed as described in chapter 4 and 5.
2.8.1 Setting the Stage
Many applications use the pressure sensor to measure water level in a gauge or reservoir.
The sensor translates water pressure to water level. When the H-3531 FlashLite™ is first
installed, you will want to adjust the Offset such that the measurement data (Stage)
corresponds to the current water elevation or stage as determined with a staff gauge or
other datum.
One of the ways to do this is by using the RS232 simple menu interface ran from
Hyperterminal or similar terminal program. See chapter 4 Connecting to the H-3531
FlashLite™ section. Once you have established connection your screen will look similar