Biddle MEGGER - Page 27

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RECON

S

OHMS

FIGURE

29.

Megohm

Scale

with

FIGURE

30.

Megohm

and

Ohm

Divide-by-10

(The

A

Switch).

Scale

(The

R

Switch).

Instructions

for

lead

connections

to

terminals

of

“Meg”

type

instruments

having

ohm

scales:

Hand-driven

2

and

3-terminal

types—use

Line

and

Earth

terminals.

Hand-driven

4-terminal

types

(including

dual-operated)

—

use

Guard

and

Ohms

terminals.

Rectifier-operated

3-terminal

type—use

Earth

and

Guard,

or

Line

and

Guard

terminals.

Megohms

and

Capacitance

Discharge

for

constant-voltage

“Meg”

type:

First

set

switch

to

TEST.

(See

Figure

31.)

As

soon

as

the

test

is

completed,

turn

switch

to

DISCHARGE.

Leave

switch

on

DISCHARGE

for

at

least

30

seconds.

FIGURE

31.

Megohm

and

Capacitance

Discharge

Switch

(The

K

Switch).

NOTE:

Figs.

29, 30,

31

show

switch

version

used

on

"Meg"

type

instruments

now

discontinued.

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