Sub-meter means a metering point for electricity consumption that does not include all electricity consumption for the end-use customer as defined by the electric distribution company account number. PJM shall only accept sub-meter load data from end-use customers for measurement and verification of Regulation service as set forth in the Economic Load Response rules and PJM Manuals.
Beam axis means a line from the source through the centers of the x-ray fields.
Ultra Low Sulfur Diesel Fuel means diesel fuel that has a sulfur content of no more than fifteen parts per
Master Meter means the meter controlled by the licensed distributor and used for settlement of the master bill with the master consumer;
water meter means any apparatus for measuring or showing the volume of water supplied to, or of effluent discharged from any premises;