Xylem XL Series H-522 - Plus - Manual (Page 231)

XL™ Series
Operation with the H-355 "Smart Gas" System 21-5
Purge Pressure Minimum Time
To Build Up
Purge Pressure Minimum
Purge Duration Total Time To
Complete Purge
(Minimum)
15 to 19 PSI 15 Seconds 40 Seconds 55 Seconds
20 to 29 PSI 25 Seconds 50 Seconds 75 Seconds
30 to 39 PSI 40 Seconds 60 Seconds 100 Seconds
40 to 49 PSI 55 Seconds 70 Seconds 125 Seconds
50 to 59 PSI 75 Seconds 80 Seconds 155 Seconds
60 to 69 PSI 100 Seconds 90 Seconds 190 Seconds
70 to 79 PSI 120 Seconds 100 Seconds 220 Seconds
80 PSI 125 Seconds 110 Seconds 235 Seconds
PC Interface View Built In Display Screen
Timed Purge Timed Prg [XX] days
This option is used to force a purge every XX days. The limits are 00 to 99 days. If the option is
set to 00 then this option is disabled. A value of 01 will cause a purge every day, a value of 07
would be once a week, and so on. The purge will happen immediately following the scan at or
just past 12 noon.
NOTE: There are a couple of special cases for the timed purge option. If the option is set to 95
then the unit will purge every scan. If the option is set to 96 then it will purge once every hour.
Also note the ‘Auto Purge’ option does not affect the timed purge option.
PC Interface View Built In Display Screen
A - Auto Purge: Off Auto Purge Enbl [Off]
The XL™ can sense when the orifice line is restricted or plugged. The H-355 can be configured
to do an automatic purge of the orifice line when it becomes necessary. This menu item turns the
auto purge on or off. This does not control the timed purge option.