Fluke 540B - Mechanical; Accessories; High Frequency Thermal Converters; Current Shunts

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540B

PROTECTION DISA

BLE

A

push

button switch

that

removes

the diode

circuit

from

the

input

to

the

thermocouple

.

Incorporated

only in

the

A54-2

plug-in

Wlit.

1- 9. MECHANICAL

SJZE

7" high x

17"

wi

de

x

7-3

/ 4" deep (1

9"

wide

with

88

1A-

103

rack

moWlti

ng

kit

installed)

.

WEIGHT

18

poWlds, 9

Ounces

w

it

h

batteries

.

1-10. ACCESSORIES

1-11.

HIGH FREQUENCY THERMAL CONVERTERS

1-2

1- 12. Nine Fluke Model A55 High

Frequency

Thermal

Conver

ters

are

available

for

use

with

the

Model

540B

extending

the

frequency

response

to

50

MHz.

One

is

pro

vided

for

each

voltage

range

of

the

540B

from

0.

5

volts

to 50

volts,

and

may

be

used

from

1/2

to

1

times

their

rated

voltage

.

It

is

possible

to

use

the

Thermal

Conver

ters

at

levels

below

1/2

their

rated

input

by

sacrificin

g

sensitivity.

1

-1

3. CURRENT SHUNTS

1-14.

Fourteen

Fluke

Model

A40

Current

Shunts

are

available

for

use

with

the

Model

540B,

for

curre

nt

transfer

measurements

of 2. 5

ma

to

20

amp

s,

over

a

frequ

ency

range

of

5Hz

to

100kHz

with a b

asic

transfer

accuracy

of

±0

.02%.

Current

transfer

measurements

may

be made well below 2. 5

ma,

but

sensitivity

will

be

reduced.

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