BRUEL & KJAER 1019 Instrucciones de funcionamiento

BROEL

KJ.ER

Ncarum -Denmark Service

Instructions

Consisting

of:

Removal

the Case .

Automatic

VIbration

Exciter

Control

Output Amplifier

Oscillator

Pick-up Amplifier

Compressor

Motor Drive Circuits

Position

Components

Parts

list

Circuit Diagram

1019.1

1019.2

1019.3

1019.4

1019.5

1019.6

1019.7

1019.8

1019

After removing the eight

HEX/HD

screws on the front panel and the two screws in the bottom,

possible to slide the chassis ond

the front panel out of the wooden case.

For

rack mounting the metal case can be pulled out after the six HEX/HD screws on the side

the instrument

are

removed.

Troubl~

Shooting.

the reason

for

a fault

not an obvious one such as a dead tube or transistor, broken down resistor, blown or disconnected fuse

etc.,

then first test the voltages

all the tubes and compare them with the voltages shown in the

circuit

diagram in order to

loca-

lize the

defect.

Should this method

finding the fault prove unsuccessful, then check the instrument

adopting the method

de-

scribed in the adjustment procedure. When the trouble

has

been found and remedied, the voltages and odjustmnets which

are

ir~flu

enced by the remedy

must

be rechecked.

The

tolerances stated in the instructions can only be used as a guide

for

adjustment and control, but any deviations

must

not

cor-

rected without being sure that the tolerances

the instruments used

for

making the adjustment

are

small as to have

influence

on the measurements.

The

instructions in this Monual

are

given purely

a guide to the service

equipment with minor faults.

Some

faults, as

f.inst.

small deviations in tolerances require

for

their correction special control equipment and extensive

experience,

and in these cases

necessary to send the instrument to the factory.

Spare Parts.

Please state type and serial number of apparatus when spare parts

are

ordered.

Instruments necessary

for

service and repair:

Frequency Analyzer type ·

Oscilloscope

Frequency Counter

M..oltimeter

(50

IJA)

1019 -

4.66

BROEL

KJ.ER

Ncerum

Denmark

.1.

Calibration

Indicating Meter . .

METER

SWITCH:

"Output

Voltage"

OPERATION SWITCH: "Scanning off"

FREQUENCY RANGE:

"5-5ooo

Hz"

COMPRESSOR

SPEED:

"Off"

OUTPUT SWITCH: "Linear"

FREQUENCY SCALE:

"400Hz"

Output

Voltage.

METER

SWITCH:

"Output

Voltage"

OPERATION SWITCH: "Scanning off"

COMPRESSOR

SPEED:

"Off"

OUTPUT SWITCH: "Linear"

OUTPUT VOLTAGE:

"10"

Frequency Response .

METER

SWITCH:

"Output

Voltage"

OPERATION SWITCH: "Scanning off"

FREQUENCY RANGE:

"5-5ooo

Hz"

COMPRESSOR

SPEED:

"Off"

OUTPUT SWITCH: "Linear"

FREQUENCY SCALE:

"400Hz"

FREQUENCY RANGE

"5005-10ooo

Hz"

FREQUENCY RANGE

"5-5ooo

Hz"

OUTPUT

SWITCH

"High pass"

FREQUENCY

SCALE

"400

Hz"

1019,

·1 -

4.66

Output

Amplifier

Valid from

serial

no.

97374

r.m

P15 i

...::~

-~~~·;..

§_

2107

1019.1

•

~·~

Adjust

the

OUTPUT VOLTAGE for

Von

OUTPUT

socket.

Deflection

type

1019:

necessary

adjust

15.

Check

that

full

scale

deflection

on type 1019

can

obtained

the

entire

frequency

range

from

5-1

Oooo

Possible reason for

fault:

,The blocking

range

the

cam discs on

the

rear

side

0009

within

the

frequenc;y range.

Too

low

signal across R

92.

The

voltage

should

approx.

320

not

check

item

2.2.

Too

low

voltage

on V 10

cathode.

Adjust

the

OUTPUT VOLTAGE for

deflection

on type

1019

Vary

the

frequency

from

5-5ooo

Deflection on type

1019:18

dB.

Tolerance:!

o .5

Possible reason for

fault:

Defective

tube V 8

Defective

filter

3,4

Vary

the

frequency from 5005-1

Oooo

Hz.

Deflection

on type

1019:18

dB.

Tolerance:±

1 dB.

Adjust

the

OUTPUT VOLTAGE for a

deflection

type

019.

Change frequency

Deflection on type 1019:

19.7

dB.

Tolerance:±

o . 2 dB.

Change frequency

Deflection on

type

1019:4

dB.

Tolerance:±

1.4.

Noise.

METER

SWITCH:

"Output

Voltage"

OPER

ATION

SWITCH: "Scanning off"

FREQUENCY RANGE:

"5-5ooo

Hz"

COMPRESSOR

SPEED:

"Ofr'

OUTPUT SWITCH: "Linear"

FREQUENCY SCALE:

"400

Hz"

OPERATION SWITCH

"Stand by"

1.5.

stortion.

METER

SWITCH:

"Output

Voltage"

OPERATION SWITCH: "Scanning off"

FREQUENCY RANGE:

"5-Sooo

Hz"

COMPRESSOR

SPEED:

"Off"

OUTPUT SWITCH: "Linear"

1019,1 -

4.66

The instrument must be

placed

in its

case

or in

other

way

effectively

screened

Adjust

the

OUTPUT VOLTAGE for a

deflection

type

2107.

Measure

Noise:

min.

below 10 V.

the

noise level

too high remove tube V 7

and

measure

the

noise from

the

output

amplifier

only:

min

below 10 V.

Possible reason for

fault:

Defective

tube V 8

Adjust

the

OUTPUT VOLTAGE

for

deflection

on type

1019.

Check

distortion

different

frequencies: max . o .

Attention:

Bear in mind

that

2107

only

allows measurements

distortion down

around

o.5

without

Iter type 1607

connected

between

type 1019

and

2107 for

rejection

the

fundamental frequency .

Possible reason

for

fault:

Defective

tube

V7,8

BROEL

KJ..ER

Ncerum

-Denmark

Removal

Tuning Capacitor CV

0009.

Oscillator

Valid

from

serial

no.

97374

1019.2

Remove

the

right hand side cover (when seen

from

the

instrument front

plate)

the

capacitor

unit

0009 .

Set the condenser to fully "turned in" position .

The

position

the condenser

checked

with a

plate

insulating

material,which

strokes over the stator

plates,

that

none

the rotor plates

above the stator plates.

The

scale

pointer should now point

220°.

not,

note

carefully

down the position

the pointer . Remove the multi-plugs

and

unsoldering the two leads to

t~e

oscillator

coiI

assembly. Unscrew the two knobs on

the

tuning spindle and remove the

scale

rim, pointer and

scale.

The

four screws, which

secure

Tuning

CaP.<Jcitor

CV 0009 to

the

front

plate,

can

then be unscrewed

Replacing Tuning

Capacitor

CV0009.

After

replacing

scale,

center

with

reference

to the spindle by means

centering

bush. Check

the

position

the condenser

with a

plate

insulating material

for

fully

interleaved

capacitor

plates and fix the pointer to 220° or to

the

position

noted

above.

Attention: Item

2.1.

and 2 .2. The frequency -can only be

checked

by means

a frequency counter or a frequency

stan~d

and

oscilloscope. The

voltage

sfiould

measured by means of a high impedance (low

capacity)

tube

voltmeter.

0-r-t--+-~

--If-+--+~~

Output

30kHz

and 35 kHz bottom view

2.1 . Fixed

Oscillator.

FREQUENCY RANGE: "5005-10ooo Hz"

FREQUENCY RANGE to

"5-5ooo

Hz"

2.2.

Variable Oscillator.

METER

SWITCH:

"Output

Voltage"

OPERATION SWITCH: "Scanning off"

FREQUENCY RANGE:

"5-5ooo

Hz"

COMPRESSOR

SPEED:

"Off"

OUTPUT

SWITCH:

"Linear"

FREQUENCY

SCALE:

"5Hz"

FREQUENCY

SCALE

to "5ooo Hz"

1019,2

4.66

Check the signal

the

socket

"30kHz

and 35 kHz" (pin 4) .

The frequency should

35kHz.

If necessary adjust

the

iron

core

"C"

in Z

The

voltage

should be approx . 2.7 V.

The frequency should

change

to 30 kHz .

not,

adjust the

air

trimmer "D" in Z 2 and

check

item a

again.

Check

that

the frequency on the

"Output"

socket (pin

5 Hz.

not,

adjust

the

FREQUENCY

SCALE

ADJUSTMENT . Fine adjustment by a

knob and coarse adjustment by a screwdriver operated

capacitor.

case

that

the regulation range

too far away

set

both

variable

trimmers in

mid position

and

adjust

the

air

trimmer

"8"

1 in Z

for

5 Hz.

Check

that

the

frequency

5ooo

not,

adjust

the

iron

core

"E" in Z 2

and

check

item a

again

::»

? I c

L\1<

/ I \

/ I

P3 P2

P12

rear view

2.3

Oscillator

Voltage.

METER

SWITCH:

"Output

Voltage"

OPERATION SWITCH: "Sconning off"

FREQUENCY,RANGE: "5005-1

Oooo

Hz"

COMPRESSOR

SPEED:

"Standard"

OUTPUT SWITCH:

"Linear"

COMPRESSOR

SPEED

"Off"

FREQUENCY RANGE

"5-5ooo

Hz"

FREQUENCY

SCALE

to "5oooHz"

FREQUENCY RANGE

"5005-1

Oooo

Hz"

FREQUENCY

SCALE

to "5005Hz"

Frequency Drift.

METER

SWITCH: "Power Freq. Beat"

OPERATION SWITCH: "Scanning off"

FREQUENCY RANGE:

"5-5ooo

Hz"

OUTPUT SWITCH: "Linear"

1019,2 -

4.66

Z3 Z3

R92

bottom view

Adjust

the

OUTPUT VOLTAGE for

approx.

half

scale

deflection

on type

1019.

Adjust

the

iron

core

in Z 3

max .

deflection.

When FREQUENCY RANGE

changed

"5-5000 Hz"

the

deflection

must

change

max . 1

Turn "Phase" (P

12)

the

front

plate

min.

deflection

on type 1019 .

Check

the

voltage

across R

92:320

mV.

necessary

adjust

Check

again

the

voltage

across R

92:

320 mV.

necessary adjust P

Possible reason for

fault:

Defective

tube V 5

filter Z 3

capacitor

C tiJ

Set

the

FREQUENCY

SCALE

exactly

the

mains frequency

Adjust FREQUENCY

SCALE

ADJUSTMENT until a

very

slow

beat

shows up.

Check

the

frequency

drift

after

a period

20 min.

and

after

15 hours by

ad-

justment

the

FREQUENCY

SCALE

for a slow

beat

and

read

the frequency

deviation

the

scale

Tolerance:±

for

each

period.

If necessary

adjust

the

trimmer "A"

After adjustment

check

item

2.2.

Attention:

instrument has not

been

in use for a long

period,

frequency

drift

may

occur

due

humidity in

the

oscillator

circuit.

Therefore

keep

tfie instrument switched on 1-2 days

before

any

adjustment.

BROEL

KJ.ER

Ncsrum

Denmark

Pick-up

Amplifier

Valid

from

serial

no.

97374 1019.3

Sheet 1

Attention:

The-pick-up

amplifier

can

only

checked

and

adjusted

by means

a frequency

counter

or an oscilloscope

and

fre-

---

quency

standard . The voltages should

measured by means

a high

impedance

(low

capacity)

tube

voltmeter.

Check

Pick-up

amplifier using "Accel.

Gen.

~put"

check

this

section

set

the

switches as follows:

METER

SWITCH: "Vibration Level"

OPERATION SWITCH: "Scanning off"

COMPRESSOR SWITCH:

"Off"

OUTPUT SWITCH:

"Linear"

Switches not mentioned here

are

set

in a position

according

instructions.

1• Frequency Response.

FUNCTION SELECTOR:

"Accel."

ACCELERATION RANGE:

"1"

{Acc.Gen.)

FREQUENCY RANGE:

"5-5ooo

Hz"

FREQUENCY

SCALE:

"500

Hz"

FREQUENCY RANGE

"5005-10aoo

Hz"

3.2.

Sensitivity

Displacement.

FUNCTION SELECTOR:

"Displ."

DISPL.-VEL.RANGE:

"o.01"

(Acc.Gen.)

FREQUENCY RANGE:

"5-5ooo

Hz"

FREQUENCY

SCALE:

"500Hz"

FREQUENCY

SCALE

"1oooHz"

DISPL.-VEL.RANGE to

"1"

(Acc.Gen.)

FREQUENCY

SCALE

"5Hz"

1019,3

c66

Adjust OUTPUT VOLTAGE for an 18

deflection

on type

1019.

Change the frequency

from

0-5ooo

Hz.

Deflection on type 1019: 18 dB.

Tolerance:±

dB.

Check

and

tolerance

as under item

Adjust OUTPUT VOLTAGE for an input

voltage

exactly

904 mV.

Deflection on type 1019:

dB.

Tolerance:

o.2

dB.

necessary

adjust

"Dispi./A.G."

voltage

on V 1 pin

7,8

700

Deflection on type

1019:8

Tolerance:±

o.2

dB.

Adjust OUTPUT VOLTAGE for an input

voltage

exactly

9.04

mV.

Deflection

type

1019:19.7

dB.

necessary

adjust

P 4

(located

on printed

circuit

XC 0126)

Possible reason for

fault:

Deflective

capacitor

29,30

The

sensitivity

adjustment

P 10

can

set

1.5%

higher or lower

facili-

ties

the

adjustment

3.3.

Sensitivity

Velocity.

FUNCTION SELECTOR:

"Vel."

DISPL.-VEL.RANGE:

"o.1"

(Acc.Gen.)

FREQUENCY RANGE:

"5-Sooo

Hz"

FREQUENCY SCALE:

"500Hz"

FREQUENCY

SCALE

"1oooHz"

3.4.

Sensitivity

Acceleration.

FUNCTION SELECTOR:

"Accel."

ACCELERATION RANGE:

"1"

(Accei.Gen.)

FR-EQUENCY

RANGE:

"5-Sooo

Hz"

FREQUENCY SCALE:

"500Hz"

3.5.

Check

Acceleration

Range.

Adjust OUTPUT VOLTAGE for an input

voltage

exactly

.6 mV.

Deflection on type 1

019: 20 dB.

Tolerance:±

o.2

dB.

necessary

adjust

P 9

"Vel./

G."

voltage

7,8

700

Deflection

type

1019:

dB.

Tolerance:±

o .2 dB.

Adjust OUTPUT VOLTAGE for

input

voltage

exactly

7.07

mV.

Deflection

on type

1019:

dB.

Tolerance:±

o.2

dB.

If necessary

adjust

P 13

"Accei./A.G."

voltage

on V 1

pin1:190mV

165

FUNCTION SELECTOR:

"Accel."

Adjust OUTPUT VOLTAGE to 20

deflection

on type 1019.

ACCELERATION RANGE:

"1"

(Ac

cei.Gen.)

FREQUENCY RANGE:

"5-Sooo

Hz"

FREQUENCY SCALE:

"500Hz"

b. ACCELERATION RANGE to

"10"(Accei.Gen

.) Deflection

type

1019:0

Tolerance:±

dB.

Adjust OUTPUT

VOLT

AGE to 20

deflection

on type

1019.

ACCELERATION RANGE to"1 OO"(Accel.Gen.) Deflection on type

1019:

0 dB.

Tolerance:±

o.4

dB.

Adjust OUTPUT VOLTAGE to 20

deflection

on type

1019.

ACCELERATION

RAN

GEto"1ooo"V\c

cei

.Gen.)

Deflection

on type

1019:0

dB.

Tolerance:±

o.4

Check also "Acceleration Range"at

10kHz.

3.6.

Check

spL-Vei.Ronge.

FUNCTION SELECTOR: "Displ

Adjust OUTPUT

VOLT

AGE to 20

deflection

on type

1019.

DISPL.-VEL.RANGE:

"o.01"

(Accei.Gen.)

FREQUENCY RANGE:

"5-5ooo

Hz"

FREQUENCY SCALE: "55 Hz"

DIS

PL.

-VEL.RANGE to

"o.1

"(Accel.

Gen

. ) Deflection on type

1019:

0 dB.

DISPL.-VEL.RANGE to

"1"

(Accei.Gen

Tolerance:±

o.4

dB.

Adjust OUTPUT VOLTAGE

deflection

on type 1019.

Deflection on type

1019:0

dB.

Tolerance:±

o.4

dB.

Adjust OUTPUT VOLTAGE to 20

deflection

on type

1019.

d . DISPL.-VEL.RANGE to

"10"

(Accei.Gen

Deflection

on type

1019:0

dB.

Tolerance:±

o.4

dB.

FREQUENCY

SCALE

"500Hz"

Check

and

tolerances

as under item

d .

FUNCTION

SELECTOR

"Vel."

1019,3

4.66

BROEL

KJ.ER

Ncerum

Denmark

Pick-up

Amplifier

1019.3

right side

vie

3.7.

Relay Functions.

FUNCTION

SELECTOR:

"Ace . "

FUNCTION

SELECTOR

to "Auto D-A"

Check

Pick-up amplifier using"Vel.

Gen.

Input"

Frequency Response .

FUNCTION

SELECTOR:

"Vel ."

DISPL.-VEL-RANGE:

"o.01"

(Vei .

Gen

VEL

.GEN.RESPONSE: "Fl

at"

FREQUENCY RANGE:

"5-5ooo

Hz"

FREQUENCY

SCALE

"500Hz"

1019,3

4.66

Valid

from

serial

no.

97374 Sheet 2

013

06 05

top vi

Check by moving the frequency pointer

that

the

relays 0

5-6-7

are

energized

according to the following·

table.

Frequency

scale:

•

Relay:

Tolerance:±

100

05-06

300Hz

05-06-07

necessary loosen rotating

contact

switch 0 27 (located on

the

tuning

spin-

CV 0009) ond adjust

the

switching point according to

table

Relays 0

2-3-4

should

energize

Relays 0

2-3

and

should

energize

according to position of frequency

scale

and cross over switch .

Adjust

the

OUTPUT VOLTAGE

for

a 15

deflection

on type

1019.

Change the frequency

from

5-2ooo

Hz.

Deflection on type 1019: 15 dB.

Tolerance:±

o.2

dB.

VEL.GEN.RESPONSE to "Shaped"

FREQUENCY

SCALE

"10Hz"

Frequency

scale

Deflection on type 1019

Frequency

scale

Deflection on type 1019

700

12.58

Adjust

the

OUTPUT VOLTAGE

for

deflection

on type 1019.

Change the frequency

from

0-2ooo

and

check

the

deflection

on type 1019.

100

200

300

400

500

600

10.26

10.83

11.24

.63

11.94 12.30

800 900 1000 1250 1500

2000

12.92

.15

13.52

14.16

14.80

.19

Tolerance,

for

frequencies

10-1000

Hz:±

o,3

1250-2000

Hz::!:

o,5

3.9.

Sensitivity

Velocity.

FUNCTION

SELECTOR:

"Vel . "

DISPL.-VEL.RANGE:

"o.01"

(Vei.Gen.)

VEL.GEN.RESPONSE:

"Flat"

FREQUENCY RANGE:

"5-5ooo

Hz"

FREQUENCY SCALE:

"500Hz"

Sensiti

Displ

ocement.

FUNCTION

SELECTOR:

"Displ."

DISPL.-VEL.RANGE:

"o.Ol"

(Vei .Gen .)

VEL.GEN.RESPONSE:

"Flat"

FREQUENCY RANGE:

"5-5ooo

Hz"

FREQUENCY

SCALE:

"500 Hz"

b. FREQUENCY

SCALE

"1oooHz"

3.11.

Sensitivity

Acceleration.

FUNCTION

SELECTOR:

"Accel."

VEL.GEN.RESPONSE:

"Flat"

ACCELERATION RANGE:

"1"

(Vei.Gen

FREQUENCY RANGE:

"5-5ooo

Hz"

FREQUENCY

SCALE:

"500 Hz"

FREQUENCY

SCALE

"250Hz"

1019,3

4.66

Adjust OUTPUT VOLTAGE for on input

voltage

exactly

6.8

mV.

Deflection on type

1019:20

Tolerance:±

o.2

If necessary adjust P 6

"Vei./V.G."

voltage

on V 1 pin

450

2:1,8

6:45

Adjust

OUTPUT VOLTAGE

for

input

voltage

exactly

1.07 V.

Deflection on type 1019:

dB.

Tolerance:±

o.2

If necessary adjust P 8

"Dispi./V.G

After adjustment

P 8

check

item 3.11

voltage

on V 1 pin

7,6

2:28

680

Deflection on type 1019: 14 dB.

Tolerance:±

o.2

Adjust the OUTPUT VOLTAGE

for

an input

voltage

exactly

8.36

mV.

Deflection on type

1019:20

dB.

Tolerance:±

o.2

dB.

If necessary adjust P 7

"Accei./V.G."

After adjustment

P 7

check

item

3.10

voltage

on V 1 pin

340

2:3,5

6:29

Deflection on type 1019:

dB.

Tolerance:±

o.2

dB.

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