GE H-10 Operation manual

Table of contents

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•

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These

instructions

do

not

purport

to

cover

all

details

or

variations

in

equipment

nor

to

provide

for

every

possible

con-

tingency

to

be

met

in

connection

with

installation,

operation

or

maintenance.

Should

further

information

be

desired

or

should

particular

problems

arise

which

are

not

covered

suf-

ficently

for

the

purchaser's

purposes,

the

matter

should

be

referred

to

the

General

Electric

Company.

GENERAL.

ELECTRIC

SPECIFICATIONS

DESCRIPTION

APPLICATION

OPERATION

•

MAINTENANCE

TROUBLESHOOTING

•

SERV

ICING

•

PARTS

L

IS

T ·

WARRANTY

CONTENTS

SPECIFICATIONS

2

2

3

4

7

8

9

10

• 10

Power

Supply:

GRA

Y

CASE,

110-127

volt

s,

60Hz, 12

watts.

BRCMN

CASE,

220-247

volts,

50/60Hz,

12

watts.

Sensitivity:

0.5

oz/yr.

R-12 on

HIGH;

1.0

oz/yr.

R-12 on

LCM.

Response Time :

Reference

Leak:

yr.

life.

Warm-Up

Time:

Approximately

1 s·

econd.

R-11

(refillable)

approximately

1

Approximately

1

minute.

Temperature:

Ope

ra

ting

range:

OC

to

45C;

storage

75C

axiurum.

Dimensions:

8.5

X 4.

50

X

2.60

i

nches.

J

Weight:

2.2

pounds

WAINI

NG

I

DO

Na!

USE

THIS

LEAK

DETECTOR

IN

A

COMBUSTIBLE

OR

EXPLOSIVE

ATMOSPHERE

.

DESCRIPTION

The Type H-10 Leak

Detector

consists

of

a

control

unit,

probe,

6-foot

hose,

and a

6-foot

power

cord

house

d

in

a

shock

resistant

vinyl

case:

gray

case

for

110-

volt

unit

and brown

case

for

240-volt

unit.

The

control

u

nit

contains

a

printed

-

circuit

board

amplifier,

plug-in

sensitive

element,

air-

pump, and power

tr

ansformer

housed

be

neath

a

chas-

is

cover.

--.

A

refe

r

ence

leak,

sens

it

iv

it

y

switch

and a

balance

co

nt

rol

are

located

on

the

top

of

the

control

chas

s

is.

(See

Fig

.

1.)

The

probe,

consisting

of

a

nozzle

with

a

transparent

tip,

air-flow

ball,

and

neon

leak-

signal

lamp

is

connected

to

the

control

chassis

by

a

length

of

flexible

tubing.

2

1.

2.

3.

4.

s.

6.

7.

8.

9.

Refrigerant

Liquid-Leve

l Window

in

Control-Unit

Chassis

REFERENCE

LEAK

Power Cord

BALANCE

Control

Knob

Chassis

Retainer

Screw

Probe

6-Foot

Hose

for

Probe

Control-Unit

Chassis

SENSITIVITY

(LCM-HIGH)

Switch

Fig.

1.

Leak

Detector

Components.

The

reference

leak

assembly

is

a

built-in

bottle

containing

a

refrigerant

gas

(R-11)

and

is

calibrated

to

provide

a

leak

equivalent

to

ap-

proximately

1/2

ounce

of

refrigerant

(R-12)

gas

per

year.

The

accessories

provided

with

the

leak

de-

tector

consist

of

a

maintenance

kit

(filters

and

airflow

balls).

APPLICATION

The Type H-10

leak

detector

was

designed

pri-

marily

for

use

as

a

serviceman's

tool.

Although

it

can

be

used

for

production-line

leak

checking,

it

was

not

designed

for

this

type

of

service.

Normally

the

serviceman

will

use

it

for

leak

checking

automobile

air

conditioning,

home

and/or

for

coumercial

air

conditioning

or

refrigeration

equipment.

L

3

,.w.•.•.N.•NG•••'•

Eg~¥~~~

-

~~~1~I~~~i~;-

~

•

PHERE

SINCE

THE

AMBIENT

ATMOS-

PHERE

IS

DRAWN

THROUGH

THE

PROBE

AND

OVER

THE

EL-

EMENT

WHICH

·

OPERATES

AT

APPROXIMATELY

1800F.

THE

RESULTING

COMBINATION

OF

AIR

AND

GAS

MIXTIJRES

·

COULD

CAUSE

AN

EXPLOSION.

Contamination

of

the

testing

area

may

cau

.

se

erratic

operation

of

the

leak

detector.

This

can

occur

when

the

leak

in

the

system

is

very

large

and

there

is

little

or

no

ventilation

in

the

test-

ing

area.

Contamination

of

an

area

may

also

occur

where

excessive

amounts

of

refrigerant

gases

are

used.

The

leak

detector

cannot

differentiate

be-

tween

atmospheric

contamination

and

an

actual

leak,

because

it

will

respond

to

any

halogen

gas

passing

over

the

sensitive

element.

A

contaminated

condition

can

be

greatly

re-

duced

by

ventilating

the

area

or

isolating

the

leak-check

area.

IMPORTANT:

--

TO

PROLONG

THE

LIFE

OF

THE

SENSITIVE

ELEMENT,

NEVER

PLACE

THE

PROBE

IN

A

STREAM

OF

RE-

FRIGERANT

AS

THIS

WILL

DRASTICALLY

SHORTEN

ELEMENT

LIFE. ,

NarE:

Variations

in

the

line

voltage

may

cause

the

same

leak

detector

reactions

as

mentioned

for

atmospheric

contamination.

If

this

is

a

prob-

lem, a

voltage

stabilizing

device

I!Llst

be

used.

OPERATION

The

condensed

operating

instructions

appear

on

the

front

page.

WAINING

I

DO

Nar

OPERATE

IN

AN

EXPLOSIVE

OR

COMBUSTIBLE

ATMOSPHERE

•

._

___

_

To

operate

the

Type H-10

leak

detector,

pro-

ceed

as

follows:

1.

Before

using

the

Type H-10

leak

detector

for

the

first

time,

remove

the

screw

from

the

cap

on

the

REFERENCE

LEAK

assembly

(2,

Fig.

1)

and

al-

low 15

minutes

for

the

leak

rate

to

stabilize.

This

screw

is

used

for

shipping

only

and

should

not

be

replaced.

Be

certain

that

the

leak-reference

bot-

tle

contains

a

quantity

of

refrigerant

(R-11).

The

liquid

level

can

be

observed

through

the

window

(1,

Fig.

1)

provided

in

the

chassis.

(This

bottle

4

is

filled

with

enough

refrigerant

to

last

approxi-

mately

i

year.)

2.

Plug

the

power

cord

(3,

Fig.

1)

into

a

120-

volt,

60-cycle

outlet

(gray

case

only);

or

plug

the

power

cord

into

a

240-volt,

50/60-cycle

outlet

(brown

case

only).

IMPORTANT:

--

DO

NOT

ATTEMPT

TO

OPERATE

THE

DETECTOR

AT

VOLTAGES

ABOVE

OR

BEU:ll

THE

VALUES

GIVEN

ON

THE

RATING

PLATE.

THE

LEAK

DETECTOR

COULD

BE

DAMAGED.

3.

The

leak

detector

will

start

to

warm

up

iumediately

after

the

power

cord

is

plugged

into

an

outlet.

4.

Check

for

sufficient

air-flow

by

pointing

the

probe

tip

toward

the

floor

and

observing

the

air

flow

ball

(in

the

probe).

If

the

air-flow

is

cor-

rect,

the

ball

will

rise

and

float

above

the

tip

of

the

probe.

(See

Fig.

2.)

The

height

the

ball

rises

is

not

important

as

long

as

it

rises.

If

the

air-flow

ball

does

not

rise,

tap

the

probe

lightly

to

make

sure

the

ball

isn't

sticking.

If

the

ball

does

not

rise

at

all

due

to

insufficient

air-flow,

the

unit

should

be

forwarded

to

the

nearest

Gener-

al

Electric

apparatus

shop.

5.

Place

the

SENSITIVITY

switch

(9,

F:l

g.

1)

in

either

the

HIGH

or

L~

positions.

The

L~

range

position

is

used

to

detect

large

leaks

and

is

used

when

the

elements

are

new. The

HIGH

range

position

is

used

to

detect

small

leaks.

After

the

leak

detector

has

been

in

use

for

some

time,

the

response

of

the

element

will

decrease

and

it

will

be

necessary

to

place

the

SENSITIVITY

switch

in

the

HIGH

range

position

for

all

leak

checking.

This

can

be

determined

by

placing

the

SENSITIV!TY

switch

on

the

L~

range

'

position

and

turning

the

BALANCE

control

(4,

Fig.

1)

until

the

lamp

(1,

Fig.

2)

just

ceases

to

flash;

then

hold

the

probe

to

the

REFERENCE

LEAK.

Observe

whether

the

light

can

be

made

to

flash.

If

no

flash

occurs

,

or

if

the

flashing

rate

decreases

when

the

probe

i s

continually

held

at

the

REFERENCE

LEAK,

the

SEN

SIT

I-

VITY

switch

nrust

be

placed

at

the

HIGH

range

po

si

-

tion

and

the

unit

rebalanced.

NOTE:

In

a

highly

contaminated

area,

t

he

flas

h

rate

will

not

be

stable

and

it

will

be

almost im-

possible

to

''balance"

the

detector.

Under t

hese

conditions,

leak

checking

would

not

be

pos

sible.

6.

The

flashing

rate

of

the

neon

l

amp

in

the

probe

is

adjusted

by

rotating

th

e

BALANC

E

contr

ol

5

1.

Neon

Lamp

2.

Air-Flow

Ball

3.

Filter

4.

REFERENCE

LEAK

(Screw

removed)

Fig.

2.

Checking

Leak

Detector

Operation,

(4,

Fig,

1)

so

that

the

neon

lamp

just

ceases

to

flash,

If

adjusted

properly,

the

light

will

flash

and

continue

to

flash

when

the

probe

is

held

at

the

REFERE

N

CE

LEAK.

When

the

probe

is

removed from

the

REFERENCE

LEAK,

the

flashing

rate

will

slow

down and

stop.

NarE:

On

some

of

the

Type

H-10

leak

detectors,

the

flashing

light

may

not

shut

off

when

the

sensit-

ivity

switch

is

on

the

HIGH

range

position.

This

is

not

a

defect,

but

indicates

a

very

sensitive

element,

in

which

case

the

leak

detectBr

should

be

operated

in

the

LCW

range

position

until

the

el~ment

wears

in,

7.

The

REFERENCE

LEAK

may

be

used

as

often

as

necessary

to

assure

proper

operation

of

the

leak

de-

tector,

or

as

a

comparing

means

to

assist

in

deter-

mining

the

size

of

the

leak,

The

response

when

probing

the

REFERENCE

LEAK

is

approximately

the

same

as

a

leak

of

one-half

ounce

of

refrigerant

(R-12)

per

year.

A

leak

which

causes

a

flashing

rate

equal

to

that

produceq

by

the

REFERENCE

LEAK

would

indicate

a

leak

rate

of

approximately

the

same

size,

8,

Hold

the

probe

as

closely

as

possible

to

the

area

being

tested

and move

the

tip

at

one

inch

per

second

along

seams

or

joints

suspected

of

leak-

ing,

When

the

probe

encounters

a

leak,

the

flash-

ing

rate

of

the

neon

lamp

will

increase

and

will

continue

to

flash

at

the

faster

rate

as

long

as

the

'

probe

is

held

at

the

leak,

6

MAINTENANCE

The Type

H-10

leak

detector

is

designed

for

long

life

with

little

or

no

maintenance.

A

main-

tenance

kit

which

contains

the

necessary

replace-

ment

parts

is

supplied

with

each

leak

detector.

Instructions

for

replacing

these

expendable

items

are

described

on

the

following

sections.

Filter

Replacement

To

protect

the

.

air

pump

from

damage

from

for-

eign

particles

and

moisture,

replace

the

filter

(3,

Fig.

2)

often.

Once a month

with

moderate

use

(15-30)

minutes

-

per

day)

is

not

too

often.

To

replace

the

filter,

pick

out

the

old

filter

with

a

pin

or

tweezers.

The

fine

screen

will

re-

main

in

the

tip.

Insert

the

new

filter

in

the

tip

and make

sure

it

is

firmly

seated

against

the

fine

screen.

Sensitive

Element

Assembly

Replacement

The

sensitive-element

is

a

plug-in

unit

that

is

to

be

thrown

s:.1ay

when

expended.

The

element

will

need

replacement

when

the

leak

detector

will

no

longer

respond

to

the

REFERENCE

LEAK

with

the

SENSITIVITY

switch

in

the

HIGH

position.

(Make

sure

the

reference-leak

assembly

contains

R-11

re

t

riger-

ant.)

·

To

replace

the

plug-in

element

assembly

pro-

ceed

as

follows:

1.

Unplug

the

power

cord

and

remove

the

screw

(5,

Fig.

1)

holding

the

chassis

to

the

vinyl

case

and

remove

chassis.

The

element

assembly

is

at

the

opposite

end

of

the

chassis

from

the

REFERENCE

LEAK.

2.

Make

sure

the

element

assembly

is

cool

be-

fore

attempting

its

removal.

3.

Insert

a new

element

assembly.

4.

Replace

chassis

in

vinyl

case

and

secure

in

place

with

screw

removed

in

step

1•

.

Reference

Leak

The

refrigerant

gas

(R-11)

contained

in

the

reference

leak

will

last

for

approximately

1

year

under

normal

operating

conditions.

To

refill

the

assembly,

proceed

as

follows:

1.

Remove

the

chassis

from

the

vinyl

case

as

described

in

previous

section.

2.

Hold

the

bottle

firmly

in

place

and remove

cap.

(Note:

Make

sure

discs

remain

in

position

in

·

the

cap.)

3.

Remove

the

bottle

and

fill

with

refriger-

ant

(R-11)

(approximately

7/8ths

full).

NarE:

Refilling

the

reference

leak

bottle

with

(R-11)

refrigerant

will

be

easier

if

done

at

temperatures

below

75F.

4.

Replace

the

bottle

in

chassis.

The

rubber

0-ring

on

the

bottle

holds

the

bottle

assembly

in

place

on

the

mounting

plate.

The

0-ring

~hould

be

pulled

back

on

the

bottle

while

the

cap

is

tight-

ened.

Tighten

cap,

·making

sure

discs

remain

in

position

in

the

cap.

After

the

cap

has

been

tight-

ened,

push

the

0-ring

up

to

the

mounting

plate

and

seat

in

the

neck

of

the

bottle.

5.

Replace

chassis

into

vinyl

case

and

secure

in

place

with

screw.

TROUBLESHDarING

If

the

Type

H-10

leak

detector

performance

is

not

satisfactory,

refer

to

the

chart

below.

SYMPrOM

No

response

to

REFERENCE

LEAK.

BALANCE

con-

trol

will

not

stop

probe

light

from

flashing

on

both

sensi-

tivity

ranges.

8

PROBABLE

CAUSE

REFERENCE

LEAK

empty.

Sensitive

ele-

ment

exposed

to

excessive

a-

mounts

of

re-

frigerant.

Water

in

probe.

REMEDY

Refill

REFERENCE

LEAK.

Remove

probe

to

clean

atmosphere

and

allow

unit

to

run

several

min-

utes

while

sen-

sitive

element

purges

itself.

Blow

clean

air

into

the

probe

tip

for

approx-

imat~ly

1

min-

ute

(5

psig)

or

blow

(by

mouth)

as

hard

as

pos-

sible

into

probe

tip

for

one

or

two

minutes.

Dirt

in

element.

Remove

sensitive

element

and

blow

out

with

clean

air

(not

ove

·r

10

psig)

and/or

remove

dirt

with

long

thin

tool.

PROBABLE

CAUSE

Short

circuit

in

the

sensitive

element.

BALANCE

con-

Extra

sensitive

trol

unit

will

element.

not

stop

probe

light

from

flashing

on

HIGH,

but

will

flash

on

LGl.

Probe

lamp Damaged

lamp.

can

not

be

made

to

flash.

SERVICING

REMEDY

Remove

sensitive

element

from

de-

tector.

Using

a

long

thin

tool

or

tweezers,

reach

through

the

hole

in

the

cove

·r and

center

the

elec-

trode

in

the

heat-

er

coil.

If

not

successful,

re-

place

sensitive

element

assembly.

Use on

LGl

range

until

sensitive

element

ages

for

a few

hours

or

until

balance

can

be

achieved

on

HIGH

range.

Replace

probe.

Repairs

described

in

the

Maintenance

section

of

this

Instruction

Book

should

be

performed

by

the

user

to

avoid

unnecessary

charges.

The

maintenance

can

be

performed

by

an

Authorized

Leak

Detector

Re-

pair

Center,

but

a

charge

will

be

incurred.

When

repairs

(in

or

out

of

warranty)

are

re-

quired,

the

units

should

be

carried

or

packed

to

prevent

shipping

damage

and

sent

to

the

nearest

Authorized

Service

Center.

For

your

convenience,

a

list

of

Authorized

Service

Centers

is

permanently

affixed

to

the

inside

flap

of

the

detector

case.

Overseas

users

DDJSt

con-

tact

the

nearest

International

General

Electric

(I,G.E.)

office.

All

of

these

centers

have

an

inventory

of

parts

on

hand,

and

all

are

comnitted

to

providing

quick

and

efficient

service

to

you.

Expendable

items

(sensitive

element,

air-flow

balls,

filters,

and

probe

tip)

can

be

obtained

from

the

nearest

authorized

distributor

of

General

Elec-

tric

Type

H-10

Leak

Detectors.

9

I

PARTS

LIST

The

parts

listed

below

are

recommended

to

en-

able

the

user

of

the

Type H-10 Leak

Detector

to

make

rapid

substitution

of

plug-in,

or

easily

re-

placed

components

when

troubleshooting.

DESCRIPTION

Maintenance

Kit

Plug-in

sensitive

element

Reference-leak

assembly

R-11

refill

for

reference

leak

Probe

tip

GE

CAT.

NO.

47

77K45G

700

1250K46G700

1654K42G700

4777K46G700

8511K41G700

WARRANTY

REMARKS

Airflow

balls

and

filters

Clear

plastic

The Company

warrants

to

the

Purchaser

that

the

equipment

to

be

delivered

hereunder

with

the

ex-

cept

ion

of

expendable

items

(sensitive

elements,

filters,

air-flow

balls,

and

probe

tip)

will

be

free

from

defects

in

material,

workmanship

and

title

and

will

be

of

the

kind

and

quality

designated

or

de-

scri

Q

ed

in

the

contract.

The

foregoing

warranty

is

exclu

s

ive

and

in

lieu

of

all

other

warranties

wheth-

er

wr

it

ten,

oral,

or

implied

(including

any

warranty

of

merchantability

or

fitness

for

purpose).

If

it

appears

within

one

year

from

the

date

of

shipment

by

the

Company

that

the

equipment

delivered

hereunder

does

not

meet

the

warranties

specified

above

and

the

Purchaser

notifies

the

Company

promptly,

the

Company

shall

thereupon

correct

any

defect,

including

non-

conformance

with

the

specifications,

at

its

option,

either

by

repairing

any

defective

part

or

parts

or

by

making

available

at

the

Company's

plant,

a

re-

paired

or

replacement

part.

The

liability

of

the

Company

to

the

Purchaser

(except

as

to

title)

arising

out

of

the

supplying

of

the

said

equipment,

or

its

use,

whether

on

warranty,

contract

or

negligence,

shall

not

in

any

case

exceed

the

cost

of

correcting

defects

in

the

equipment

as

herein

provided

and

upon

the

expiration

of

said

one

year,

all

such

liability

shall

terminate.

The

foregoing

shall

constitute

the

sole

remedy

of

the

Purchaser

and

the

sole

liability

of

the

Company.

10