Hardy HI 2151/30WC Single-Scale Controller User Manual

Page 170

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HI 2151/30WC MANUAL

Gross Weight

An overall weight exclusive of tare deductions. Weight of material plus con-
tainer.

Input Average

The number of readings averaged into a displayed value.

Keypad Lockout

A selectable switch used to prevent input from the keyboard.

Kilograms

A unit of mass in the metric system. Equal to 1000 grams or 2.2046 pounds.
"Gr" represents kilograms on the display.

LED

Light Emitting Diode. These are used in the front panel displays and indica-
tors.

Load Cell

A device which produces an output signal proportional to the applied weight
or force.

Menu

A set of prompts used to configure the instrument.

Menu Driven

Operational prompts supplied in common language statements via the system
display to guide an operator through a procedure.

Microprocessor

A semiconductor device that performs control, input/output, arithmetic, and
logical operations by executing instructions obtained from memory sources.

Midpoint Linearity Correction

Allows operator to "BEND" the response of an instrument to match a non-lin-
ear input.

Motion

The amount of allowable deviation between consecutive readings before a
weighment is accepted as being complete.

NEMA 4

An enclosure that is watertight, dust-tight, and usable both indoors and out-
doors. Will protect the enclosed equipment against splashing water, seepage
of water, falling or hose-directed water, and severe external condensation.

NEMA 4X

An enclosure that is watertight, dust-tight, and usable both indoors and out-
doors. Will protect the enclosed equipment against splashing water, seepage
of water, falling or hose-directed water, and severe external condensation.
Corrosion Resistant.

Net Weight

Gross Weight minus the Tare value.

Next Key

A key used to step through menus or increase the value of a digit.

Non-Linearity

A deviation of an instrument response from a straight line.

Number Of Readings Per
Average

The number of weight readings used to compute the displayed weight.

Odd

A parity configuration.

Option

A device not supplied with a standard instrument.

Option Slot

A location on the main board used to install an option card.

Parity

A binary digit error correction appended to an array of bits to make the sum of
all the bits always odd or always even.

Pounds

A unit of mass in the Avoirdupois System. Equal to 16 ounces or 0.4536 kilo-
grams.

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