Datasheet > 242-756

242-756

更新时间： 2022-05-24 15:51:13

品牌	Logo	应用领域
MACOM		/
页数	文件大小	规格书
12页	644K
描述
240 Series DIN Panel Meters

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242-756 数据手册

Glo s s a ry

Glossary of Term s

Moving iron, also called ‘iron vane’ in the North American market for measuring AC amps and volts.

Moving coil for measuring DC amps and volts.

Taut band suspension

m ovem ent

A meter movement held under tension, usually on a ligament.

Ligam ent

The taut band.

Pivot and jew ell (P&J ) A movement which rotates on a spindle, and pivots within an oil filled jewel. This type of movement

typically offers excellent vibration resistance characteristics.

Short-scale

Long-scale

FSD

Angle of deflection for a movement is usually 90 degrees but ANSI is 100 degrees in some products.

Angle of deflection for a movement is usually 240 degrees but is frequently referred to as 270 degree.

Full scale deflection.

End scale.

Input

Electrical value from which the measurement is derived to achieve the full scale deflection of

the movement.

Linear

A term used to state that the input is constant, allowing for an even scaling.

Non linear

The opposite of linear, giving a scale shape which will cramp at some point on the dial. Usually

inaccurate below 20% of the full-scale value.

Logarithm ic scaling

Scale

A log scale usually derived from a non linear DC output.

The graphical representation of the value being measured.

More than one set of figures on a dial plate.

Dual arc

Dial plate/ scale plate

Calibration chart

Enclosure rating

Surface on which the dial is drawn.

A chart matching input values to scale mark, mainly used for complicated scales.

Usually expressed in the form of IP rating or as NEMA in America. This states the product,

resistance to the ingress of moisture and dust.

DIN

European standard meter shape. It is based on multiplies of 24mm, i.e. 48, 72, 96, 144 mm.

American National Instrument Standard.

ANSI

J IS

Japanese Instrument Standard.

BS89

Old British Standard usually refers to rectangular meter or “Fiesta” style products.

General term for long-scale instruments.

Sw itchboard m eter

Panel m eter

Analogue indicator

General name for short-scale instruments.

Generic term for instruments usually refers to a low accuracy meter. An indicator only.

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2428	FRONTIER	Insert Molded Coil	获取价格