Bacharach H-10PM Manual de usuario

Congratulations! You have just

purchased the most versatile,

high performance service leak

detector available in the industry

today. It will detect refrigerants

with a sensitivity to effectively

pinpoint both small and large

leaks quickly and efficiently.

We encourage your review of

this manual to assure satisfac-

tory performance and a long

service life.

For technical support call:

1-800-850-0044

Refrigerant

Leak Detector

H-10PM

How the H-10PM Works

The sensor in the H-10PM uses posi-

tive ion emission technology, commonly

known as a heated diode. It is very

sensitive to only halon substances

(refrigerants) making this product highly

resistive to false alarming, while retain-

ing superior sensitivity for pinpointing the

most difficult to find refrigerant leaks.

A pump inside the unit draws air

through the sensor. Any presence of

halogen gases (such as refrigerants)

causes an ionized current to flow that

sounds a speaker and illuminates a

neon light in the probe. Sensitivity to

pinpoint both large and small leaks can

be controlled by setting the three posi-

tion Leak Size switch.

Panel Operating Controls

Before you use the unit the first time . . .

1. Remove the sticky-label disc from

the cap of the Calibration Reference

Bottle. This disc can be reused to

help seal the vial when the leak

detector is not in use, or it can be dis-

carded. DO NOT attempt to unscrew

the cap, you may damage the bottle!

It is filled with enough refrigerant to

last approximately six months.

Charger

Plug

Battery

Charge

Light

Calibration

Reference

Bottle

Sensor

Leak Size

Switch

Manual Balance

Control

Heater

Adjustment

(turn clockwise

to increase heat)

Power

Switch

Low Battery

Indicator

Heater Adjust

LEDs

Mode Switch

MANUAL /

AUTO

2. With the Power switch in the OFF

position, charge the internal battery

using the furnished wall adapter.

Charge time is 8–10 hours or, until

the red Full Charge LED turns green.

Note: Unit will not operate from AC power

using the furnished battery charger wall

adapter. For continuous operation on

120VAC, 220/230VAC or 240VAC, use factory

available or equivalent, optional wall adapter

with a 1.7 amp/13.5 VDC output.

Adjusting the Sensitivity

Set the Leak Size switch as follows:

SMALL switch position is the high-

est sensitivity. The unit will indicate

0.1 ounce or greater leak rates and

is used for fluorine based gases like

R134a and SF6. This position also

assures highest repeatability for locating

0.5 ounce or greater R134a leaks (per

SAE Std. J1627 moving probe test con-

ditions). It must always be used to verify

performance and calibration when using

the Calibration Reference Bottle.

MEDIUM switch position is used for

chlorine and chlorine based gases like

R12, R22, R123, etc. and will indicate

a 0.1 ounce per year or greater leak

rate. This position supports finding a

0.5 ounce or greater leak during the

moving probe test as defined in SAE

J1627. It is also useful for locating larger

R134a leaks of one ounce or greater.

LARGE switch position is used to zero

in on large leaks of any refrigerant. If

a large leak is suspected, switch unit

to its Manual mode. Adjust the Manual

Balance control for 2-3 ticks per second

and slowly approach the test equip-

ment/area. Adjust the Manual Balance

control counterclockwise as necessary

to maintain 2-3 ticks per second. As you

approach the vehicle or equipment, the

gas concentration will increase, causing

an alarm condition. Each time an alarm

occurs, readjust the Manual Balance

control. Continue this process until the

leak is located. Blowing out the test site

with shop air may enable you to locate

the leak more quickly.

NOTE: After the large leak is located and

repaired, blow out the area again with shop

air, set the unit on the small leak sensitivity

and double check equipment for small leaks.

Operating Instructions

1. Slide mode switch to AUTO position.

2. Slide power switch to ON position and

sensitivity switch to SMALL position.

3. Check Low Battery LED. If it glows

red, the battery needs charging, or you

may operate the unit from a 12VDC

source, or with optional AC Adapter of

the correct voltage and current.

4. Check for sufficient airflow by point-

ing the probe tip toward the floor and

observing the red airflow ball in the

probe tip. It should be floating inside

the probe tip.

5. Allow two minutes for the sensor to

warm up. After which the flashing

probe light and sound indicator will

idle at 2-3 clicks per second.

6. Test operation by quickly touching

the top of the calibration reference

bottle (make sure sticky label is

removed). The unit should respond

with a rapid flash rate and sound

verifying correct operation and

optimum sensitivity for detecting all

refrigerant leaks. During product life,

if unit does not respond correctly, see

“Heater Adjustment” section.

NOW . . .

YOU’RE READY TO FIND THE LEAK !

(You have a choice of two modes)

Auto Mode

This mode is preferred because the

unit effectively auto zeros to block out

background levels of refrigerants and

changes in background contamination.

This greatly reduces and/or eliminates

false alarms while retaining sensitivity

to quickly locate small or medium size

leaks. Pinpointing leaks in this mode

requires continuous probe movement.

(We recommend 2 inches per second

as specified in SAE J1627 and J1628).

If the probe is held stationary over

the leak the unit will zero out the leak,

going into the idle 2-3 ticks/second con-

dition. Briefly moving the probe away

from the leak, for 1-2 seconds, per-

mits the unit to re-establish sensitivity.

Returning to the leak site, the unit will

alarm again. Continuing this procedure

will reliably and repeatedly pinpoint the

leak with each pass over the leak site.

If a large leak is present, the auto

zero circuit may reduce sensitivity to

an unacceptable level to find small and

medium sized leaks. If this condition

exists, the manual mode will enable you

to pinpoint the large leak.

WARNING: Personal Injury Hazard

Do not use the H-10PM in an explosive

or combustible atmosphere. The ambient

atmosphere is drawn through the probe

and through the sensor, which operates at

approximately 1472°F (800°C). The

resulting hot mixture of air and combustible

gas could explode.

The manual mode is also an effec-

tive means to determine if a large

leak of any refrigerant exists prior to

searching for leaks (see “Adjusting the

Sensitivity”).

Manual Mode

In the Manual Mode the auto-zero

circuit is disabled. The unit will not zero

out the leak if the probe is held over

the leak site. This mode may require

frequent readjustment of the Manual

Balance control to maintain the required

2-3 ticks per second that indicates

proper adjustment and calibration for

all three sensitivity switch positions. In

this mode you may notice sensitivity is

slightly greater (10-20%) than the auto-

zero mode. This is normal.

Heater Adjustment

(for optimum performance and calibration)

The Calibration Reference Bottle sen-

sor heater circuit controls the sensitiv-

ity of the unit. A heat setting that is too

high causes instability due to excessive

sensitivity and shortens sensor life. The

LOW / OK / HIGH LEDs in conjunc-

tion with the Heater Adjustment and

Calibration Reference Bottle is a unique

system for setting the correct sensor

heat (sensitivity) for optimum perfor-

mance and long sensor life.

The unit is pre-set for optimum initial

operation. To check the setting, slide the

mode switch to AUTO, turn ON the unit

and allow it to stabilize (approximately

2 minutes). When stabilized, at 2-3 clicks

per second, briefly touch the Calibration

Reference Bottle with the probe (after

removing the sticky label disc from the

top of the bottle). If adjusted properly the

red LOW LED will go out and the green

OK LED will briefly glow. This indicates

the sensor’s heat/sensitivity is adjusted

for optimum performance.

If the red LOW LED remains on when

you briefly touch the bottle, the sensor

heat is set too low and the Heater

Adjustment must be turned slightly

clockwise. Allow unit to stabilize about

one minute and retest. Repeat this pro-

cedure until the green OK LED briefly

glows.

If the red HIGH LED glows, the heat is

set too high and the Heater Adjustment

should be turned slightly counterclock-

wise. Allow the unit to stabilize and then

repeat the test. Continue this procedure

until the proper green OK LED indication

has been achieved.

NOTES:

A. After initial check for correct adjustment,

disregard the LOW / OK / HIGH LEDs. Their

indication is meaningless during subsequent

leak testing activity.

B. Check for proper heat adjustment the first

time the unit is turned on and repeat on a daily

basis. This assures the product is calibrated

for the correct sensitivity in all leak size switch

positions for your daily test activity.

C. Frequency of sensor heat adjustment is a

function of how much exposure the sensor

has to refrigerant. Adjustment may be required

every couple of weeks for heavy duty service

and once every few months for light duty

service. The sensor LED status indicators will

accurately tell you when adjustment is neces-

sary during the daily check.

D. Over the usable sensor life, when heater

adjustment is fully clockwise and the green

OK LED will not come on, it is time to replace

the sensor. Before plugging in a new one,

turn the Heater Adjustment fully counter-

clockwise then plug in the new sensor and

test and adjust as described above to cali-

brate the instrument.

Application Notes

1. Start leak checking anywhere and

continue in a logical progression

through the entire system to locate all

leaks. If surfaces are particularly dirty,

or wet, wipe them off with a clean,

dry cloth to reduce filter clogging and

extend sensor life. DO NOT allow the

unit to ingest moisture. Use of the

supplied rubber probe tip helps

prevent moisture from being drawn

into the unit. Check ports for moisture

before inserting the probe.

2. After locating and repairing any leaks

requiring the use of the LARGE switch

setting, switch to the MEDIUM set-

ting and verify the system is free of

leaks. For HFC refrigerants only (such

as R134a), you also must verify the

system is leak free using the SMALL

setting. For CFC and HCFC systems

(such as R11, R12, R22, R123), the

MEDIUM setting is sufficient to verify

that the system is free of leaks that

require repairing.

Caution: Equipment Damage Hazard

A. Submerging the probe in liquid will dam-

age the air pump.

B. Exposing the probe to a stream of pure

refrigerant coming out of a tank will severely

reduce the life or destroy the sensor. Life of

this rare-earth sensor technology is directly

proportional to the amount of refrigerant that

passes through it. With normal intermittent

service, the sensor can last for one year or

longer.

C. Exposure to high concentrations of refrig-

erant may require adjustment of sensor

heat. To check, repeat the test procedure in

“Heater Adjustment” section.

Maintenance

(replacing the filter and airflow indicator)

To protect the air pump from damage

due to foreign particles and moisture,

replace the filter as it becomes dirty.

With moderate use (15 to 30 min-

utes a day), it is recommended that

the filter be replaced once a month.

In dirty environments or with heavy

use, replace the filter more frequently.

Always replace the filter when it is

visibly dirty or wet.

Replacing the Filter:

1. Remove the black rubber probe tip.

2. Pick out the filter with a pin or tweezers.

A fine screen will remain in the tip of

the probe.

3. Insert the new filter in the probe tip.

Make sure that the filter is firmly seated

against the fine screen.

4. Replace the rubber probe tip.

Replacing Airflow Ball Indicator:

1. Remove the clear plastic section of

the probe tip by gently pulling and

twisting the white grip.

2. Turn the probe tip upside-down and

tap on it to remove the old airflow

indicator ball.

3. Insert the new airflow indicator ball

into the tip.

4. Reattach the probe tip to the probe

assembly.

Filter

Rubber

Probe Tip

Airflow

Indicator Ball

Probe Tip

Replacing the Sensor:

The sensor is a plug-in unit that can be

thrown away when expended. It needs

replaced when the H-10PM no longer

responds to the Calibration Reference

Bottle, even with the Heater Adjustment

turned fully clockwise (make sure the ref-

erence bottle contains some refrigerant).

1. Turn the leak detector OFF.

2. Unplug the power cord if the unit is

plugged in and open the sensor cover.

3. Allow the sensor to cool before

touching it.

4. Unplug and discard the sensor.

5. Insert a new sensor and close the

sensor cover.

6. Turn the Heater Adjustment to its full

counterclockwise position.

7. Apply power to the unit and adjust

the sensor’s heat setting (see “Heater

Adjustment” section).

Troubleshooting

Problem Responds to reference

leak in LARGE leak switch

position

Cause Heat Adjustment set too high

Solution Readjust heater (see “Heater

Adjustment” section)

Caution: Personal Injury Hazard

Sensor surface temperature may reach

390°F (200°C) during operation, and may

cause a burn if not allowed to cool.

continued on next page

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