56
EMR
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- Truck Installations
EMR4 Terminal & Fueling Depot Installation EMR4 – Legal Disclaimer Notice
PULSE OUTPUT LIMITS
EMR4 Setting Maximum Fueling Rate
0.1 pulse/gallon 450,000 gpm
1.0 pulse/gallon 45,000 gpm
10 pulses/gallon 4,500 gpm
100 pulses/gallon 450 gpm
1,000 pulses/gallon 45 gpm
Limits are dependent on the time it takes the EMR4 to send pulses. In this example, a gallon is used to represent a
unit of volume and gpm is gallons-per-minute.
The EMR4 has a maximum pulse rate of 750 pulses per second or 45,000 pulses per minute. At high fueling rates,
the EMR4 will need extra time to send out all of the required pulses. Use the following examples as a guide to
setting the correct pulse-to-unit-volume ratio on the EMR4. Reference the EMR4 Setup And Operation Manual,
577014-350, to enter a value under the SET PULSES/VOL menu.
Example of a correct setting:
Set the PULSES/VOL value to 10 pulses per gallon and deliver 1,600 gallons at a fueling rate of 800 gpm. The
actual delivery takes 2 minutes and the EMR4 can transmit 16,000 pulses within the 2 minute time frame.
Example of an incorrect setting:
Set the PULSES/VOL value to 100 pulses per gallon. Deliver 3,200 gallons at a fueling rate of 800 gpm. The
actual delivery takes 4 minutes while the EMR4 takes (320,000 pulses/45,000 pulses per minute) 7 minutes to
process the delivery data. It takes the EMR4 three additional minutes to transmit the last 140,000 pulses!
Consider both the flow rate and the time it takes to send all of the pulses prior to setting the PULSES/VOL value.
CAUTION: The EMR4 system does not provide volume pulses in real time. There is an unspecified
delay in the time it takes the IB to process volume data provided by the display head.
EMR4 – Legal Disclaimer Notice
PRODUCT SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
VEEDER-ROOT COMPANY, ITS AFFILIATES AND EMPLOYEES, AND ALL PERSONS ACTING ON ITS
OR THEIR OWN BEHALF (COLLECTIVELY) DISCLAIM ANY AND ALL LIABILITY FOR ANY ERRORS,
INACCURACIES OR INCOMPLETENESS CONTAINED HEREIN.
VEEDER-ROOT’S EMR4 PRODUCT IS NOT APPROVED FOR USE AS A COMPONENT THAT
PROVIDES LIQUID ADDITIVES TO AN AIRCRAFT FUELING SYSTEM WHERE THE ABSENCE OF
SUCH ADDITIVES CAN REASONABLY BE EXPECTED TO RESULT IN SIGNIFICANT INJURY TO
PERSONS, PROPERTY AND THE ENVIRONMENT. CUSTOMERS USING VEEDER-ROOT PRODUCTS
NOT EXPRESSLY INDICATED FOR USE IN SUCH APPLICATIONS DO SO ENTIRELY AT THEIR OWN
RISK AND AGREE TO FULLY INDEMNIFY VEEDER-ROOT FOR ANY DAMAGE ARISING OR
RESULTING FROM SUCH USE.
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