CPS LEAK-SEEKER LS780C Manual de usuario
OPERATION MANUAL
LEAK-SEEKER LS780C
Refrigerant Leak Detector
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GENERAL SPECIFICATIONS
FEATURES
TABLE OF CONTENTS
English 2-7
Español 8-13
Deutsch 14-19
Français 20-25
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The LS780C is a perfect combination of advanced electronics
and field practical features. Developed from over 20 years
of engineering experience and sensor research, the LS780C
incorporates sophisticated patented technologies, yet is one
of the easiest to use leak detectors available today.
The quick and accurate location of a refrigerant leak is critical
to the thousands of professionals who rely on CPS for their
leak testing needs. Designed to effectively detect all CFC, HFC,
HCFC refrigerants and refrigerant blends as well as the latest
HFO type refrigerants for automotive use, the LS780C is the
best value in leak detectors in the market.
The portability of the LS780C allows the user access to any
suspected leak area, no matter how remote or restricted it may
be. An ergonomically shaped body provides a sure grip while
the 18" flexible probe bends it’s way into almost any position.
A multitude of other time saving and practical features pro-
vides the professional with the absolute feedback they need
to confidently say, “the leak is here!”
The following pages contain all of the necessary information
you will need to properly operate, maintain or leak test using
the LS780C LEAK-SEEKER
®
. Please take the time to thor-
oughly read and understand the enclosed information prior
to operating the unit.
• Patented Ion-Pump® sensor enhances sensitivity
& reliability
• Patented filter eliminates false signals due to moisture
• LED leak size indicator
• Detects all halogenated refrigerants
• 2 selectable sensitivity ranges
• 30 Hour battery life
• Rated better than 0.25 ounce for R-134a
• Low battery indicator
• CE Approved
ADDITIONAL PARTS INCLUDED
INSTRUMENT CONTROLS
• Spare Ion-Pump® Sensor
• Carrying case
• Earphone for noisy environments
• 4 AA Alkaline Batteries
The instrument features an easy to use
3-position slide switch as its only control
feature. The function of each of the posi-
tions is as follows:
OFF: In this position, the power to the cir-
cuit is disconnected.
LO: This is the position that puts the
LS780C into it’s low sensitivity mode. When
switching from OFF to LO, the instrument
wakes up, takes note of the contamination
conditions around the sensor, setting itself
to those conditions and notifies the user
that it is ready to function by sounding a
low pitched tone at regular intervals. This
tone increases in pitch and frequency as
the leak is approached.
HI: This is the position that puts the LS780C in its high sen-
sitivity mode. When switching from OFF to HI, the instrument
wakes up, takes note of the contamination conditions around
the sensor, setting itself to those conditions and notifies the
user that it is ready to function by sounding a low pitch tone
at regular intervals. This tone increases in pitch and frequency
as the leak is approached.
Note: It is not necessary to go from LO or HI to the OFF
position to clear the instrument.
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AUTOMOTIVE APPLICATIONS
SAE J1628 RECOMMENDED PROCEDURE
NOTE: On automotive A/C systems, test with the engine off.
1. The air conditioning or refrigeration system should be
charged with sufficient refrigerant to have a gauge pres-
sure of at least 340 kPa / 50psi when not in operation. At
temperatures below 15˚C / 59˚F, leaks may not be measur-
able, since this pressure may not be reached.
2. Take care not to contaminate the detector probe tip if the
part being tested is contaminated. If the part is particularly
dirty, or condensate (moisture) is present it should be
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wiped off with a dry shop towel or blown off with shop air.
No cleaners or solvents should be used, since the detector
may be sensitive to their ingredients.
3. Visually trace the entire refrigerant system and look for
signs of air conditioning lubricant leakage, damage, and
corrosion on all lines, hoses, and components. Each
questionable area should be carefully checked with the
detector probe, as well as all fittings, hose to line cou-
plings, refrigerant controls, service ports with caps in
place, brazed or welded areas, and areas around attach-
ment points and hold down on lines and components.
4. Always follow the refrigerant system around in a continu-
ous path so that no areas of potential leaks are missed. If a
leak is found, always continue to test the remainder of the
system.
5. At each area checked, the probe should be moved around
the location, at a rate no more than 25 to 50 mm/second
(1-2 in / second), and no more than 5 mm (1/4 in) from the
surface, completely around the position. Slower and closer
movement of the probe greatly improves the likelihood of
finding a leak.
6. An apparent leak shall be verified at least once by blowing
shop air into the area of the suspected leak, if necessary and
repeating the check of the area. In cases of very large
leaks, blowing out the area with shop air often helps locate
the exact position of the leak.
7. Leak testing of the evaporator core while in the air condi-
tioning module shall be accomplished by turning the air
conditioning blower on high for a period of 15 seconds
minimum, shutting it off, then waiting for the refrigerant to
accumulate in the case for ten minutes. Next, insert the
leak detector probe into the blower resistor block or con-
densate drain hole if no water is present, or into the closest
opening in the heating/ventilation/air conditioning case to
the evaporator, such as the heater duct or a vent duct. If
the detector alarms, a leak apparently has been found.
8. Following any service to the refrigerant system, and any
other service which disturbs the refrigerant system, a leak
test of the repair and of the service ports of the refrigerant
system should be done.
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OPERATING TIPS
MAINTENANCE
Windy Conditions: Do not attempt to find a leak in windy areas.
Even very large leaks may be impossible to find as the escaping
gas is quickly dissipated into the atmosphere. If necessary,
fabricate a gas trap using aluminum foil around joints or fittings
or otherwise shield the search area from the wind.
Recommended Sensitivity Setting: Start searching for leaks
using the LO sensitivity range to detect and repair the biggest
leaks first. Switch to the HI sensitivity setting if no leaks are
found using the LO setting.
Leak Verification: If a suspected leak is indicated, verify several
times by moving the sensor away from the leak area, allow-
ing the alarm to clear and then back to the suspected leak. If
the instrument indicates a leak three consecutive times, you
have found a leak.
The LS780C LEAK-SEEKER® is designed to require a minimal
amount of field maintenance. Regular cleaning of the sensor
housing air vents, replacement of the Ion-Pump® sensor and
changing the batteries are the only maintenance needs.
Battery: Replace with “AA” alkaline batteries only.
Note: Do not use rechargeable batteries.
Changing the Ion-Pump® Sensor: Eventually, the
Ion-Pump® sensor will need to be replaced. This condition is
usually indicated by abnormal or erratic performance when
the instrument is in the lowest sensitivity range. Install the
new sensor as indicated in Figure-1 (turn the unit OFF before
attempting to change the sensor). CPS recommends that
you change the Ion-Pump® sensor at the beginning of every
AC & R season and always have a spare sensor available for
replacement in the field.
Patented Vapor Filter: Ensure that the sensor housing inlet and
outlet air vents are clean and free of materials that may block
the air from circulating through the Ion-Pump® sensor. If the
vents become dirty and clogged remove the housing from the
probe and remove the Ion-Pump® sensor (turn the unit OFF
before removing the housing). Next, attempt to remove any
contaminants using low pressure shop air or by hand ONLY.
Note: Do not attempt to clean this housing by any other
means. If the sensor housing remains contaminated, simply
replace it.
FIGURE - 1
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WARRANTY
CPS® guarantees that all products are free of manufacturing
and material defects for one year from the date of purchase.
If a product should fail during the guarantee period due to
defective material or workmanship, it will be repaired or re-
placed (at our option) at no charge. This guarantee does not
apply to products that have been altered, misused or are in
need of field service maintenance. All repaired products will
carry an independent 90 day warranty. LS3000B and LS790B
carry a 2 year warranty.
CPS Products, Inc.
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CPS Products, Inc. U.S.A. (Headquarters)
1010 East 31st Street, Hialeah, Florida 33013, USA
Tel: 305-687-4121, 1-800-277-3808, Fax: 305-687-3743
E-mail: [email protected]
Website: www.cpsproducts.com
CPS CANADA LTD.
1324 Blundell Road, Mississauga, ON, L4Y 1M5
Tel: 905-615-3124, Fax: 905-615-9745
E-mail: [email protected]
Website: www.cpsproducts.com
CPS PRODUCTS N.V.
Krijgsbaan 241, 2070 Zwijndrecht, Belgium
Tel: (323) 281 30 40, Fax: (323) 281 65 83,
E-mail: [email protected]
Website: www.cpsproducts.be
CPS AUSTRALIA PTY. LTD.
109 Welland Avenue, Welland, South Australia 5007
Tel: +61 8 8340 7055, Fax: +61 8 8340 7033
E-mail: [email protected]
Website: www.cpsproducts.com
MANUAL DE FUNCION
LEAK-SEEKER LS780C
Detector de Fugas Refrigerante
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ESPECIFICACIONES GERNERALES
CARATERÍSTICAS
El LS780C es una combinación perfecta de funciones prácticas
y electrónicas avanzadas. Desarrollado a partir de 10 años
de experiencia en ingeniería e investigación de sensores, el
LS780C incorpora sofisticadas tecnologías patentadas, pero
aún así, es uno de los detectores de fugas más fáciles de usar
del mercado.
La ubicación rápida y exacta de una fuga de refrigerante es
crítica para los miles de profesionales que confían en CPS
cuando necesitan realizar pruebas de fugas. Diseñado para
detectar eficazmente todos los refrigerantes CFC, HFC, HCFC
y mezclas de refrigerantes así como el tipo más nuevo de
refrigerantes HFO para uso automotriz, el LS780C es la mejor
opción en detectores de fugas en el mercado.
Gracias a que el LS780C es portátil, el usuario tiene acceso a cu-
alquier área donde se sospeche que hay una fuga, sin importar
cuán remota o restringida sea esta área. Un diseño ergonómico
proporciona un agarre seguro mientras que la sonda flexible de
18" se dobla en práticamente cualquier posición. Una multitud
de otras carateristicas prácticas y eficientes le proporciona al
profesional la información que exacta que necesita para decir
con certeza, “¡aqui está la fuga!”
Las siguientes páginas contienen toda la información necesaria
para hacer funcionar, dar mantenimiento a o realizar pruebas
de fugas con el LS780C LEAK-SEEKER®. Tómese el tiempo
para leer detenidamente y entender la informción incluida antes
de poner en funcionamiento la unidad.
• Sensor Ion-Pump® patentado que mejora la sensibilidad y
la confiabilidad
• Filtro patentado que elimina las señales falsas causadas
por la humedad
• Indicador LED del tamaño de la fuga
• Detecta todos los refrigerantes halogenados
• 2 opciones de rango de sensibilidad
• Batería de 30 horas de duración
• Clasificado mejor que 0,25 onzas para R-134a
• Indicador de batería baja
• Aprobado por la CE
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CONTROLES DEL INSTRUMENTO
El instrumento cuenta con un interruptor
deslizable fácil de usar de 3 posiciones
como su única carateristica de control. A
continuación se describe la función de cada
una de las posiciones:
OFF (Apagado): En esta posición, la cor-
riente hacia el circuito está desconectada.
LO (Bajo): Esta es la posición que coloca
al LS780C en el modo de sensibilidad
baja. Cuando se cambia de OFF a LO, el
instrumento se activa, toma nota de las
condiciones de contaminación alrededor
del sensor, se configura a sí mismo con
esas condiciones y le notifica al usuario
que está listo para funcionar por medio
de hacer sonar un tono bajo a intervalos regulares. Este tono
se va haciendo más agudo y frecuente a medida que la fuga
está más cercana.
HI (Alto): Esta es la posición que coloca al LS780C en el
modo de sensibilidad alta. Cuando se cambia de OFF a HI,
el instrumento se activa, toma nota de las condiciones de
contaminación alrededor del sensor, se configura a sí mismo
con esas condiciones y le notifica al usuario que está listo para
funcionar por medio de hacer sonar un tono bajo a intervalos
regulares. Este tono se va haciendo más agudo y frucuente a
medida que la fuga está más cercana.
Nota: No es necesario pasar de LO o HI a la posición OFF
para borrar el instrumento.
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HI
OFF
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PARTES ADICIONALES INCLUIDAS
• Sensor Ion-Pump® de repuesto
• Estuche
• Audífono para ambientes ruidosos
• 4 baterías alcalinas AA
APLICACIONES EN LA INDUSTRIA AUTOMOTRIZ
PROCEDIMIENTO RECOMENDADO POR SAE J1628
Nota: En los sistemas de aire acodicionado de automóviles,
realice la prueba con el motor apagado.
1. El sistema de aire acondicionado o de refrigeración debe
cargarse con sufficiente refrigerante para tener una preción
manométrica mínima de 340 kPa / 50 psi cuando no está
funcionando.
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