Station operators now have automatic notification of line leaks, not thermal problems. No more drive-off customers from thermal problems! The ISM-4080 Integrated Shutdown Modules are built using the field proven technology of the ARM-4073 Automatic Repressurization Module. Auto-Repressurization technology (patent application), developed by Vml, prevents leak detector false alarms. The ISM-4080 integrate Auto-Repressurization with real time pressure monitoring to determine when thermal contraction is occurring and compensation is required.
When the mechanical leak detector senses a leak, the turbine authorization is removed and alarm contacts are activated.
The ISM-4080 automatically monitors line leak tests before dispensing product and monitors Auto-Repressurization tests between dispensing cycles.
Controls multiple submersibles manifolded into one line! Brings manifolded pipe systems into compliance using a lead-lag submersible control for up to four manifolded submersibles. Custom configurations available.
Programming allows for automatic shutdown of the submersible pump if a sump sensor alarm is detected, or allows for alarm only response if a sump sensor is activated where submersible pump shutdown is not desirable (and not required).