DATA PRECISION 5740 - Page 25

42 pages

Save Page as PDF

To Next Page

To Next Page

To Previous Page

To Previous Page

Loading...

72-1002

Model

5740

COUNTER

stopping

the

intercycle

oscillator

action.

Then,

after,

the

first

divider

output

pulse,

Z21B

changes

state

and

maintains

these

conditions

until

the

succeeding

Z19-1

(TB)

pulse

is

received,

signifying

end

of

measurement.

Table

3-2

describes

the

flip-flop

states

as

they

respond

to

the

control

pulses

from

the

measuring

chain

and

the

intercycle

os

cillator.

3.9.2

Manual

Measurement

In

Manual

Control

of

the

measuring

pro

cess,

the

states

of

the

counter

flip-flops

are

manually

SET

and

RESET

respectively

to

keep

a

continuous

TRANSFER

action

while

rotary

switch

S3

is

in

the

HOLD

or

COUNT

or

RESET

positions.

The

RESET

position

of

the

rotary

switch

manually

places

a

zero

level

at

the

output

of

Z1M--8,

accomplish

ing

the

same

RESET

action

as

in

the

repet

itive

operation

of

the

counter.

Z21B

I

c9,O^Se'i-'

I

HBSfC

I

If

>1

Z22

C13

JK

ENABLE

FIRST

PULSE

AFTER

JK

ENABLE

TP4

Z21A

Q

I

Z20

Z14-6

Z14-8

u

Fig.

3-9.

Model

5740

Intercycle

Control,

Timing

Waveforms

COPYRIGHT

1976

DATA

PRECISION

CORPORATION.

PRINTED

IN

THE

U5.A.

39