Firmware Version 3/4.31.37
5.2.2 1
ST
STAGE TRIP
The 1st Stage Trip phase begins when the remaining volume reaches the volume indicated by the 1st Stage Trip
Volume parameter, located on the Component Setup screen. This phase is the initial transition when
approaching target delivery. When the 1st Stage Trip Volume is reached, the MultiLoad II de-energizes both
solenoids, which permits the line pressure to reduce the valve opening. The solenoids will remain de-energized
until the 1st Stage Flow Rate is reached. The 1st Stage Flow Rate is configured in the Component menu.
When the 1st Stage Trip flow rate is achieved, the MultiLoad II will energize the normally open (upstream)
solenoid. This is done in an attempt to lock the valve in a position to maintain the desired flow rate. Periodic
adjustments to the valve are made as the flow rate drifts above or below the 1st Stage Trip Dead Band rate.
Product flow will continue at the 1st Stage Trip flow rate until the 2nd Stage Trip Volume is reached.
5.2.3 2
ND
STAGE TRIP
The 2nd Stage Trip phase will begin when the remaining volume reaches the volume indicated by the 2nd Stage
Trip Volume parameter. This parameter is in the Component menu. This phase is the second in a series of
adjustments from the High Flow rate to a no flow condition. When the 2nd Stage Trip Volume is reached,
MultiLoad II will de-energize both solenoids; this permits the line pressure to reduce the valve opening. The
solenoids will remain de-energized until the 2nd Stage Flow Rate is reached. The 2nd Stage Flow Rate is
configured in the Component menu.
When the 2nd Stage Trip flow rate is achieved, the MultiLoad II will energize the normally open (upstream)
solenoid. This is done in an attempt to lock the valve in a position to maintain the desired flow rate. Periodic
adjustments to the valve will be made as the flow rate drifts above or below the 2nd Stage Trip Dead Band rate.
Product flow will continue at the 2nd Stage Trip flow rate until the ‘Final Trip Volume’ is reached. The 2nd Stage
Trip phase ends when the ‘Final Trip Volume’ has been reached.
5.2.4 FINAL TRIP
The Final Trip Stage is the last phase of delivery where product flow is authorized. When the time specified in the
Final Trip Max Time parameter has elapsed, flow must be completely stopped. When the Final Trip Max Time
expires, the preset will transition to the Idle state. If flow is still detected past this period, and if the Overrun Alarm
Volume has been exceeded, the Overrun Alarm will activate. The ‘Final Trip Volume’ parameter will command the
valve to close prior to reaching the preset quantity to compensate for small, consistent over deliveries. This
adjustment is made on a volumetric basis. For example, if the valve consistently delivers 1.50 volumetric units
more than the preset amount, enter 1.50 for this parameter. The Final Trip parameters are located on the
Component Setup screen.
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