Systron donner 6250a User manual

TELECOf

1

~

·

1

AUSTRALIA

RESEJ\RCH

LAPDRATORIES

APPARATUS

HISTORY

SHEET

RL

9878

COUNTER,

Frequency,

1'i.me.

Systron Dormer,

Type

6250A,

S/N

20005

Accessories

: 1 -

Power

Cord

[

This manual

contains

all

ECO's

through

#9454

1974

Systron-Oonner

Corporation

SVSTRDN

•E-111111111•®

DONNER

CORPORATION

Printed

in

U .S.

A.

\"\L

\OIU

INSTRUCTION

MANUAL

MODEL

6250A

COUNTER

TIMER

SERIAL

NO.

@

CONCORD

INSTRUMENT

DIVISION

10

Systron Drive •

Concord,

California

94518

• U.S.A.

Tel:

(415)

676

-

5000

•

TWX

:

910-481-9479

• Cable:

SYSTRONDONNER

FSCM

No

.

52542

B 0

e

NE

N

H

TE

ON

A

OPE

ON

MAINTE

IN

TABLE

OF

CONTENTS

(Cont'd)

CHAPTER

5 -

PRINCIPLES

OF

OPERATION

(Cont'd)

5.2

5.3

5.3.1

5.3.2

5.3.3

5.

3.

4

5.

3.

5

Logic

Devices.

. . . • . . . . . . . . · ·

Circuit

ue6cLiption

•..........

Mother

Baord,

Al,

Schematic

#7-0S3SSS01

Readout

Assembly,

A2,

Schematic

#4SS86-7-l

. . . . . . .

A

Amplifier,

A3,

Schematic

#7-0S3S7201

. . . . . . . .

B

Amplifier,

A4,

Schematic

#7-0S3S8401

. . . . . .

10

MHz

Osc~llator

Assembly,

AS,

Schematic

#45608-7-1

.....

.

CHAPTER

6 -

DRAWINGS

6.1

Introduction

. . . . . . .

053629

Test

Assembly

. . . . . . . . . . . . . .

053628

Rear

Panel

Assembly

. . . . . . . . . . .

7-053630

Wiring

Interconnect

Schematic

. . . .

7-053SSS01

Al,

Mother

Board

Schematic

(Sheet

1

of

2)

. . . . . . .

..

. . . . . .

7-053S5501

Al,

Mother

Board

Schematic

(Sheet

2

of

2)

. 0 . . . .

OS3SS501

Al,

Mother

Board

Assembly

. . . . . .

45586-4-1

A2,

Readout

Assembly

. . .

4S586-7-l

A2

,

Readout

Schematic

. . . .

053S7201

A3,

A

Amplifier

Assembly

. . . . . . .

7-05357201

A3,

A

Amplifier

Schematic

. . . .

05358401

A4,

B

Amplifier

Assembly

. . . . . . . . .

7-0S3S8401

A4,

B

Amplifier

Schematic

. -3 . .

45608-4-1

AS,

10

MHz

Oscillator

Assembly

. . . . . .

45608-7-1

AS,

10

MHz

Oscillator

Schematic

. . .

CHAPTER

7 -

PARTS

LISTS

7.1

Introduction

. . . . . . .

7.2

Manufacturer's

Index

. . . . .

OS3630

Final

Assembly

. . . . . . . .

053SS501

Al,

Mother

Board

Assembly

. . . . . .

4SS86-4-l

A2,

Readout

8

Digit

Assembly

. . .

053S7201

A3,

A

Amplifier

Assembly

. . . . . . .

OS3S8401

A4,

B

Amplifier

Assembly

. . . . . . .

4S608-4-l

AS,

10

MHz

Oscillator

Assembly

. . . .

CHAPTER

8 -

OPTIONS

8.1

Introduction

. . . . . . . . . . . . . . .

; v

Page

S-1

5-2

5-4

5-5

6-1

6-3

6-4

6-S

6-6

6-7

6-8

6-9

6-10

6-11

6-12

7-1

7-4

7-5

7-9

7-11

7-13

7-15

8-1

6250A-6-74

[

(

[

I [

[

TABLE

OF

CONTENTS

(Cont'd)

CHAPTER

8 -

OPTIONS

(Cont'd)

045836

045834

045841

04584901

04584902

04584903

053006

045787-4-1

Option

06

Internal

Battery

Operation

. .

Option

07

External

Battery

Operation

. .

Option

08

Oscillator,

Temperature

Stability

±1

Part

in

10

6

.......

.

Option

11

Oscillator,

Temperature

Stability

±3

Parts

in

10

9

••••••

Option

12

Oscillator,

±1

Part

in

10

9

Per

Day

. . • • . . • . . . . • . . •

Option

13

Oscillator,

±5

Parts

in

10

Per

Day

.

..

.

..

• .

..

.

..

. . . . .

Option

32

Rear

Signal

Inputs

. • . . .

Page

OPT

06/

OPT

07-1

OPT

08-1

OPT

11,

OPT

12,

OPT

13-1

OPT

32-1

OPT

35-1

Option

35

BCD

Cpnversion

Cable

Rack

Mount

Assembly

• . . . . . . ACCESSORY-1

CHAPTER

9 -

SUPPLEMENTAL

INFORMATION

9.1

Introduction

. • • 0 • • • • • • • • •

9-1

LIST

OF

FIGURES

Figure

3.1

Front

Panel

. . "

..

. " "

..

"

..

"

..

" .

3-3

3.2

Rear

Panel

.. ..

"

..

" " "

..

" " " " .

..

" "

3-3

3.3

Gating

Ambiguity

. .

..

. .

..

3-6

3

..

4

Triggering

Levels

.. ..

0 .

..

.

3-6

3.5

Spurious

Counts

Due

to

Noise

Transients

3-7

3 "6

Missing

Counts

Due

to

Amplitude

Modulation

" "

..

"

..

3-7

3

..

7 Mono

polar

Pulses

Intersecting

Only

One

Trigger

Level

.. ..

. "

..

. .

..

.

..

3-8

3.8

Ringing

On

Pulse

Waveform

Causes

Count

Error

.. ..

..

.

.. ..

.

..

.

..

"

.. ..

" "

..

3-8

3

..

9

Period

and

TIM

Triggering

Error

Caused

By

Signal

Noise

" "

..

.. .. ..

..

.

..

.

.. ..

"

3-9

3.10

Measurement

Error

vs

Frequency

3-9

5.1

Functional

Block

Diagram

..

5-2

5

..

2

Expanded

Time

Base

Timing

"

.. .. ..

5-6

5

..

3

Time

Base

Timing

..

. .

5-7

LIST

OF

TABLES

Table

1

..

1

Specifications

..

.

..

. .

..

1-1

1..2

Standard

Options

.

..

. .

..

" " . 0

..

1-4

3.1

Front

Panel

Functions

.

..

.

..

.

3-1

3.2

Rear

Panel

Functions

..

"

..

.

..

. .

3-4

4

..

1

Recommended

Test

Equipment

"

..

. .

4-1

7 "1

Code-to-Name

Cross-Reference

..

7-1

OPT

35

..

1

Rear

Panel

BCD

Connections

.. ..

.

OPT

35-1

6250A-6-74

v

1. 1

INTRODUCTION

This

tions,

test

and

schematic

drawi

The

instrument

is

Systron-Donner

ha

display.

An

eig

standard.

Al

b

re

cha

Maximum

the

operator

a

time

most

appropr

Light

weight

comb

anywhere.

A

as

a

power

1

1.

2

SPEC

PERIOD

Sine

6250A-6-74

N

HAPTER

INFO

TION

specifications,

operat

instruc-

parts

lists,

and

assembly/

Model

6250A

Counter/Timer.

sal

counter,

which

features

the

im

a

highly

readable

seven-se

leading

zero

blanking

is

lable

four-bit

parallel,

group-

on

a

rear

panel

connector.

In

counter

may

be

powered

by

an

internal

±

de

voltage

source.

ts

the

proper

range

to

pro-

the

frequency

being

measured.

second.

Manual

selection

of

s

,

enabling

selection

of

the

gate

applicationo

make

this

counter

usable

connectors

provide

for

use

unit.

specifications

for

the

Model

C F

ATIONS

to

5

MHz

0 Hz

in

100

Hz

steps

±

base

accuracy

µs

to

50

000

µs

to

999999.99

µs

l - l

TABLE

1.1

SPECIFICATIONS

(Cont'd)

PERIOD

MEASUREMENT

(Cont'd)

Resolution:

Automatic

Manual

Display:

TIME INTERVAL A~B

Range:

Resolution:

Slope

selection:

Display:

RATIO

MEASUREMENT

Function:

Range:

Multiplier

range:

Automatic

Manual

TOTALIZE

Rate

limits:

Register

capacity:

Control:

STANDARD

TIME

BASE

Aging

rate:

Temperature

stability:

1- 2

.01

µs

to

.0000001

µs

by

period

average

of

10

2

to

10

6

periods.

Automatically

searches

multiple

average

to

fill

register.

Selection

of

multi~le

period

aver-

age

from

10

1

to

10

periods.

Counts

10

MHz.

µs

with

autopositioned

decimal

point.

.0001

ms

to

9999999.9

ms

Manual,

.0001

ms

to

.1

ms

Independent

for

positive

or

nega-

tive

start

and

stop

inputs.

ms

with

autopositioned

decimal

point.

f A +

fB

f A;

20

Hz

to

50

MHz

fB;

20

Hz

to

1

MHz

100

to

10

6;

automatically

searches

multiple

average

to

fill

register.

10

to

10

6

20

Hz

to

50

MHz

10

8

events

Front

panel

switch

for

totalize/

hold

<±3

parts

in

10

7

per

month

<±5

parts

in

10

6

from

0°

to

50°C

(32°

to

122°F);

±2

parts

in

10

6

from

20°

to

40°C

(68°

to

104°F)

typical.

6250A-6-74

TABLE

.1

SPECIF!

ATION

(C

nt

d)

Line

Vol

External

GENERAL

Trigger

Registration:

Display

storage:

Sensitivity:

S

wave

input

Input

impedance:

Attenuation:

input

without

damage:

Power~

• 3 N

f

6250A

6-74

7

0%

ms

9

II

l 3

1-4

TABLE

1.2

STANDARD

OPTIONS

Option

Description

06

with

an

operating

07

08

*11

*12

*13

*32

35

*

Contains

an

Provides

operation

from

an

external

de

source

Time

base

oscillator;

improves

time

base

tempera-

ture

stability

to

±1

part

in

10

6

from

0

to

50°C.

Time

base

rate

±3

parts

10

9

per

day.

±1

part

10

8

from

0

to

Time

base

per

day.

from

0

to

Time

base

per

day

..

from

0

to

50°C

..

Rear

panel

BCD

conversion

outputs

into

including

Not

aging

rate

±1

part

in

stability

±1

part

aging

rate

±5

parts

stability

±1

part

in

converts

group-

8-

4-

2-

l

paral

legend

units

..

06

or

0

1010

8

6250A-6- 4

2.1

IN

RODUC

IN

The

and

the

2.2

REC

2 .

5)

6)

6250A

E

the

cond

damage

..

and

recei

shipping

car-

shipment.

of

controls,

your

nearest

COUNTER UNTIL

INSTRUCT-

ser

a

summary

on

all

sides

ional

movement

of

INSTRUi'ft.i.ENT"

to

en-

2 l

SYSTRON DONNER 6250A User manual

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