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Term Definition
Integrated Circuit A circuit component consisting of a piece of semiconductor material
containing up to thousands of transistor and diodes. A chip.
Integrating ADC An ADC whose output code represents the average value of the input
voltage over a given time interval.
Interface (computer) Usually refers to the hardware that provides communication between
various items of equipment.
Interface (liquid) The area between two liquids that are not easily mixed, i.e. oil and water.
Interference A disturbance to the signal in any communications system.
Inverter A circuit in both analogue and digital systems that provides an output that
is inverse to the input.
Inverter, DC to AC Converts DC to AC at a high frequency.
ioINT Interrupt signal from the I/O modules.
ioVBB i/o Battery Voltage- Unregulated 13.8 volts. Host supplies 2.5 amps to the
I/O modules.
ioVDD Unregulated 5.6 volts from the host for I/O modules.
ISO International Standards Organization.
Isobutane (C4H10) A hydrocarbon of the same chemical formula as butane but different
molecular structure, resulting in different physical properties, notably lower
boiling point. Gross heating value 3261 Btu/cu. ft. gas.
IVision SCADA system designed for oil and gas applications
K Kilo. 1) In referring to computers, a "kilo" is 1024 or 2 to the 10th power
(Note that it is actually slightly more than an even 1000.). 2) the standard
metric prefix for 1,000, or 10
3
, used with units of measure such as volts,
hertz, and meters.
kbytes/s A unit for data transfer that means 1,000 or 10
3
bytes/s.
Kerosene An oily liquid obtained in the distilling of gasoline in a temperature range
from 174-288 degree C. A hydrocarbon of specific gravity of 0.747 to
0.775. Used as fuel for some internal combustion engines, heating
equipment, and illuminating purposes. A heavy grade known as range oil
is used for cooking and heating.
KHz Electronic abbreviation for Kilohertz.
Kilobyte 1024 bytes.
Kilowatt-hour kWh A unit of energy when one kilowatt of power is expended for one hour.
Example A radiator bar is usually rated at 1,000 watts and this switched on
for one hour consumes one kilowatt-hour of electricity.
KPa Kilopascal-Measure of Pressure
LACT Lease Automatic Custody Transfer.