10
Pressurized Line Leak Detection
Shutdown Rate
10-6
If the Passive 0.1 testing option is selected the system will continue monitoring the line pressure after it has
completed a passing 0.2 test. The test is labeled passive because it will not turn on the pump. If the line pressure
remains stable it will satisfy the requirements for a passing 0.1 test. The passed test will be recorded.This method
cannot identify a leaking line because the line has to be repressurized several times to distinguish a leak from
thermals.
No is the default setting. Press STEP for No, or press CHANGE to select Yes, then press ENTER.
Press STEP to continue.
Shutdown Rate
This feature lets you shut down the line following a failed line leak test. The choices are 3.0 gph, 0.2 gph, 0.1 gph,
or none.
Note: you must have the
Precision PLLD
software module key installed in your system to select shutdown rates
of 0.2 gph or 0.1 gph.
Press STEP to accept the 3.0 gph (11.3 lph) shutdown rate, or press CHANGE until the desired shutdown rate
appears, then ENTER to confirm your choice. NOTE: If you select a 0.1 gph (0.38 lph) shutdown rate, a failed 0.1
gph, 0.2 gph (0.76 lph), or 3.0 gph leak test will disable dispensing. If you select a shutdown rate of 3.0 gph, then
only a failed 3.0 gph leak test will disable dispensing, while a failed 0.2 gph or 0.1 gph leak test will just trigger an
alarm. If you select None, no failed test will shut down the line.
Press STEP to continue.
Low Pressure Alarm Shutoff
The Low Pressure Alarm Shutoff detects low pressure during a dispense. The Default value is 0 psi (0 kPa), with
programmable values from 0 - 25 psi (0 - 7 kPa). When the pressure drops below the entered shutoff value, the
pump shuts off. The next handle up will restart the pump. A value of 0 will disable this alarm.
For no low pressure shutoff, press STEP. To enter a different Low Pressure Shutoff value, press CHANGE, then
ENTER. Press STEP and enter the desired pressure. Press ENTER, the system confirms your choice with the
message:
Q1: (Pressure Line Label)
SHUTDOWN RATE: 3.0 GPH
Q1: (Pressure Line Label)
LOW PRESSURE SHUTOFF: NO
Q1: (Pressure Line Label)
LOW PRESSURE: 5
