Block 3 GCAMS

Analog & Digital are referring to what?

• Analog meter movements

• parallax error

• types of meter readouts

• linear or nonlinear

a pointer moving across a graduated scale. can allow for parallax/human error

• digital meter movements

• non-linear scales

• analog meter movements

• linear scales

two types of analog scales

• negative

• linear and nonlinear

• digital

• polar & nonpolar

displays values in discreet numbers. increased speed, accuracy, and resolution.

• meter movement

• analog meter readouts

• digital meter readout

• reading analog scales

digital meter classifications

• linear or nonlinear

• single or multi-function

• electrical or electronic

• accurate or non-accurate

characteristics of electrical meters: (select 3 that apply)

• current sensing device

• voltage sensing device

• no amplifying devices

• may produce loading

characteristics of electronic meters: (select 3 that apply)

• contains amplifying device

• contains no amplifying device

• reduces loading effects

• voltage sensing device

designed to measure a single characteristic

• multimeter

• megohmeter

• single function meter

• panel meter

can measure two or more characteristics. sometimes called VOM (volt-ohm-milliameter)

• single function meter

• panel meter

• multimeter

• megohmeter

use a high voltage potential to measure insulation breakdown of cables. comprised of a Hand Driven DC generator.

• single function meter

• multimeter

• megohmeter

• panel meter