ISD Alarm Message Diagnostics GROSS COLLECT
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GROSS COLLECT
1-Day Gross A/L Test failure occurs when the A/L ratio is at least 75% below the lower certified A/L ratio or at
least 75% above the upper certified ratio.
ISD MONITORING CATEGORY
Vapor Collection Monitoring for sites equipped with assist vapor recovery systems is responsible for ensuring that
proper front-end vapor capture is occurring during fueling events. Among other components, front-end equipment
includes the nozzle, hose and the breakaway. Vapor collection is assisted by vacuum motor(s) located inside the
dispenser vapor return piping.
DIAGNOSTIC PROCEDURE
1. Find the hose that triggered the alarm by looking at the Collection Tests in the ISD Daily Report in the normal
menu.
2. A certified technician for the EVR equipment manufacturer must inspect the equipment.
Refer to the Clear Test Repair Menu (on page 36) for clearing this alarm on the TLS after repairs are complete.
COMMON CAUSES
• Failure of the EVR equipment.
• Gross Collect on all hoses: All hoses have extremely high A/L.
The most common cause of High A/L on all Nozzles at the same time is the dispenser events are artificially low.
This can be caused by the DIM not having a 'G' in the DIM setup string. The only DIM that requires this is the
BIR Protocol Dispenser Interface Module P/N 330280-001.
FIELD NOTES
If the nozzle that triggered the alarm checks out OK, check the boots on the other nozzles at the site and repair the
damaged ones.
This alarm should not occur at a VST Balance site. If it does check EVR Type setup in ISD.
---------------------
COLLECTION TEST
GROSS DGRD
A/L (#) A/L(#)
FP01: UNLEADED
1.13 (288) W-0.10(288)
:
:
FP: LABEL
1.13 (188) -0.10 (188)
ISD-EVR/fig1.eps
These lines appear if
EVR type=VACUUM ASSIST
W - Warning is on FP 1 unleaded hose.
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