MAC Tools Refrigerator ACL2500 User's Manual
Contents
1. ACL2500 TOOLS Fefrigerant Leak Detector Owner s Manual 5 15 DESIGN CERTIFIED BY MET LABORATORIES INC TO MEET SAE J1627 FOR R134a R12 AND R22 CLASS 1 DIVISION 2 GROUPS C amp D HAZARDOUS LOCATIONS HAND HELD GAS 55 9279 DETECTOR CLASSIFIED BY us UNDERWRITERS sn LABORATORIES INC AS TO FIRE ELECTRICAL SHOCK AND EXPLOSION HAZARDS ONLY READ OWNERS MANUAL BE FORE OPERATING CAUTION TO REDUCE THE RISK OF ELECTRIC 5 ENER GIZE UNIT BEFORE REPLAC ING SENSING TIP OR perm ING UNIT USE ONLY WITH 1 5V ALKALINE BATTERIES SIZEC 6 TABLE CONTENTS General Information Features Parts amp Controls Getting Started Installing Batteries Operating Features Battery Indicator Automatic Reset Sensitivity Adjustment Alarm Indications Operating Instructions Operating Tips Applications Maintenance Replacement Parts Specifications Warranty GENERAL INFORMATION HE Thank you for purchasing the MAC TOOLS Refeigerant Leak Detector The ACL2500 is the most stable and sensitive negative corona Leak Detector ever made An advanced microprocessor is the heart of this unit Its Digital Signal Processing permits better management of the circuitry and sensing tip signal than ever before possible Additionally the number of components used in the circuit is reduced near ly 40 increasing reliability and performance The microprocessor mon2. 2 5 x 2 5 22 9 cm x 6 5cm x 6 5cm Fixed Probe Length 14 35 5 WARRANTY amp REPAIR HL This instrument has been designed and manufactured to provide unlimited service Should the unit be inoperative after performing the recommended maintenance a no charge repair or replacement will be made to the original purchaser if the claim is made within three years from the date of purchase This warranty applies to all repairable instruments that have not been tampered with or damaged through improper use This warranty does not cover batteries sensing tips tip protectors or any other materials that wear out during normal operation of the instrument Before returning your instrument for repair please make sure that you have carefully reviewed the Unit Maintenance section of this manual to determine if the problem can be easily fixed Make sure that you have either replaced or cleaned the sensing tip and tip protector and that the batteries are working properly BEFORE returning the unit If the instrument still fails to work properly please call the Customer service Department for RMA number at the Toll Free number below Repaired or replaced tools will carry an additional 90 day warranty For more information please call 800 327 5060 TOOLS WV Designed amp Engineered in the USA Manufactured in China Toll Free Customer Service 1 800 327 5060 100839ACL RevA
3. RESET FEATURE Pressing the RESET key during operation performs a similar function When the RESET key is pressed it programs the circuit to ignore the level of refrigerant present at the tip This allows the user to home in on the source of the leak higher concentration Similarly the unit can be moved to fresh air and reset for maximum sensitivity Resetting the unit with no refrigerant present fresh air causes any level above zero to be detected Whenever the unit is reset the LED s except the leftmost power indicator will turn Orange for 1 second This provides a visual confirmation of the reset action Sensitivity Adjustment 12500 provides seven levels of sensitivity The sensitivity level is indicated on the visual display when either the SENSITIVITY a OR SENSITIVITY p keys are pressed The base beeping tone is also an indication of sensitivity level OPERATING FEATURES HL When the unit is switched it is set to sensitivity level 5 1 To adjust the sensitivity press the SENSITIVITY a or SENSITIVITY p key When the key is pressed the visual display will show the LED s red The number of LED s lit indicates the level See Fig 5 Level one lowest sensitivity is shown by the leftmost LED Counting from left levels 2 through 7 are indicated by the corresponding number of red LED s i e level 7 is shown by all LED s lit Pressing the SENSITIVITY or SENSITIVITY b key will change the sensiti
4. 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 couplings refrigerant controls service ports with caps in place brazed or welded areas and areas around attachment points and hold downs on lines and components Always follow the refrigerant system around in a continuous path so that no areas of potential leaks are missed If a leak is found always continue to test the remainder of the system 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 move ment of the probe greatly improves the likelihood of finding a leak see fig 7 Any increase in beep rate is indicative of a leak An apparent leak shall be verified at least once as follows a Blow shop air into the area of the suspected leak if necessary and repeat 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 b First move the probe to fresh air and reset Then hold the probe tip a close as possible to the indicated leak source and slowly move around it until the leak is confirmed Automotive A C Systems only 7 Leak testing of the
5. es Detect cleaning agents used in dry cleaning applications such as perchloroethylene Detect Halon gases in fire extinguishing systems MAINTENANCE n Proper maintenance of your Leak Detector is very important Carefully following the instructions outlined below will reduce performance problems and increase the life expectancy of the unit WARNING TURN UNIT OFF BEFORE REPLACING THE SENSING TIP FAILURE TO DO SO MAY RESULT IN A MILD ELECTRICAL SHOCK Keep the sensing tip clean Prevent dust moisture and grease build up by utilizing the provided tip protector Never use the unit without the protector in place Before using the unit always inspect the tip and protector to see that they are free of dirt and or grease To clean 1 Remove protector by grasping and pulling off tip 2 Clean protector with shop towel and or compressed air MAINTENANCE HE If the tip itself is dirty it be cleaned by immersing in mild solvent such as alcohol for a few seconds and then using compressed air and or a shop towel to clean NOTE Never use solvents such as gasoline turpentine mineral spirits etc as these will leave a detectable residue and desensitize your unit Sensing tip replacement The tip will eventually wear out and require replace ment It is difficult to predict exactly when this will occur since tip longevity is directly related to the conditions and frequency of use The tip should be replaced when
6. evaporator core while in the air conditioning 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 10 minutes After such time 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 OPERATING TIPS All Systems 8 Following any service to the refrigerant system and any other service which dis turbs the refrigerant system a leak test of the repair and of the service ports of the refrigerant system should be done APPLICATIONS 1 2500 Leak Detector may also be used to Detect leaks in other systems and storage recovery containers It will respond to ALL halogenated contains Chlorine or Fluorine refrigerants This includes but is not limited to CFCs e g R12 R11 R500 R503 etc HCFCs e g R22 R123 R124 R502 etc HFCs e g R134a R404a R125 etc Blends such as AZ 50 HP62 MP39 etc Detect Ethylene Oxide gas leaks in hospital sterilizing equipment it will detect the halogenated carrier gas Detect SF 6 in high voltage circuit breakers Detect most gases that contain Chlorine Fluorine and Bromine halogen gas
7. evel O GO EN Green Battery OK O O A CI OI EN Orange Battery Low OGO L3 L3 L3 Em Red Replace Battery CONSTANT POWER INDICATOR OPERATING FEATURES Battery Test Function This feature is activated by pressing the Battery Test key When pressed the LED s will display a three color bargraph indication of true battery voltage See Fig 4 The LED s correspond to voltage as shown in the figure Not all LEDs will always be on the number of LEDs on indicate the voltage level n 25V 2 6 2 65 27 28V 29V 3 0 EH E Red Orange BATTERY TEST DISPLAY The battery voltage display will remain as long as the BATTERY TEST key is depressed Release the BATTERY TEST key to return to normal operation This function may be activated at any time during operation and does not interrupt alarm signals Automatic Circuit Reset Feature The ACL2500 features an Automatic circuit and a Reset function key that set the unit to ignore ambient concentrations of refrigerant AUTOMATIC CIRCUIT Upon initial power on the unit automatically sets itself to ignore the level of refrigerant present at the tip Only a level or concentration greater than this will cause an alarm CAUTION Be aware that this feature will cause the unit to ignore any refrigerant present at turn on In other words with the unit off if you place the tip up to a known leak and switch the unit on no leak will be indicated
8. ever the alarm sounds or becomes erratic in a clean pure air environment To replace the tip 1 Make sure the unit is OFF 2 Remove the old tip by unscrewing counter clockwise 3 Use the supplied replacement tip located in the carrying case Replace by screwing on clockwise REPLACEMENT PARTS Standard Equipment Your Halogen Leak Detector comes equipped with one Carrying Case one Owner s Manual 2 C cell batteries and one replacement Sensing Tip and Protector To purchase replacement parts for your leak detector please contact your local dis tributor To ensure that you obtain the correct parts it is best to reference the part number when placing your order Replacement Parts TIFXP 2RED Maintenance Kit 3 Sensing Tips amp 3 Tlp Protectors TIFXP 4AMAC Blow Molded Carrying Case TIF5201 Leak Source SPECIFICATIONS Power Supply 3V DC two cell Alkaline batteries Maximum Sensitivity Per SAE J1627 Rating Criteria Certified for R12 R22 and R134a 0 5 oz yr 14gr yr Ultimate sensitivity less than 0 1 2 3 gr yr for all Halogen based refrigerants Sensing Tip Life Approx 20 hours Operating Temperature 30 to 125 F 0 52 C Battery Life Approximately 30 hours normal use Duty Cycle Continuous no limitation Response Time Instantaneous Reset Time One second Warm Up Time Approximately 2 Seconds Unit Weight 1 2 lbs 560 grams Unit Dimensions 9 x
9. grip True mechanical pumping provides positive airflow through sensing tip Mute feature included Cordless and Portable operates on 2 C cell batteries 14 35 5cm flexible stainless probe Optional Carrying Holster Optional Reference Leak Source Three Year Warranty PARTS amp CONTROLS HL 1 2 3 4 5 6 T 8 9 0 KEYPAD Sensing Tip Tip Protector Power On OFF Battery Test Reset Button Audio Mute Sensitivity Up Sensitivity Down LED Leak Indicators Flexible Probe GETTING STARTED HE Installing Batteries 1 Remove the battery compartment door located on the bottom of the instrument as shown below Install batteries Positive Polarity inwarels towards the unit See figure 2 BATTERY INSTALLATION Side View BATTERY o ag LXD Fig 2 E OPERATING FEATURES Power Indication Battery Test The ACL2500 provides two indications of battery voltage status a Constant Power indicator leftmost LED and a Battery Test function The Constant Power indicator allows the user to see the battery level at all times The LED will remain on whenever the unit is powered on It may appear as one of three colors See Fig 3 GREEN Battery voltage is normal sufficient for proper operation ORANGE Battery voltage is approaching the lower threshold for operation replace as soon as possible RED Battery voltage is below acceptable operating l
10. itors the sensing tip and battery voltage levels 4000 times per second compensating for even the most minor fluctuations in signal This translates into a stable and depend able tool in almost any environment Convenience features have been added to enhance the usability of the ACL2500 Seven levels of sensitivity provide an increase of 64 times from level 1 to level 7 Unique Tri Color LED s show a progressive and wide ranging leak size indication communicate the sensitivity level and provide a true voltage indication of battery power level A tactile keypad controls all functions of operation A revolutionary new case design gives the user grip and control and places the visual indicators in direct sight during use Please take a few moments to read through the following pages in order to under stand and benefit from all the capabilities of your new ACL2500 We trust that you will be 10096 satisfied with your new purchase If you have any questions or com ments after reviewing the manual please feel free to contact us toll free at 800 327 5060 FEATURES HE Microprocessor control with Advanced Digital Signal Processing Tricolor visual display Seven 7 levels of sensitivity provide an increase of up to 64x Tactile Keypad controls Real time sensitivity adjustment Battery Test function Battery voltage indication Certified to SAE J1627 for R134a R12 R22 Detects ALL Halogenated Refrigerants Rubber cushion
11. nd Adjust the sensitivity down only when resetting the unit does not allow you to home in on the leak In areas that are heavily contaminated with gas the unit may be reset to block out ambient concentrations of gas The probe should not be moved while the unit is being reset The unit can be reset as many times as needed In windy areas even a large leak can be difficult to find Under these conditions it is best to shield the potential leak area Be aware that the detector may alarm if the sensing tip comes in contact with moisture and or solvents Therefore avoid contact with these when leak checking SAE J1628 Recommended Procedure NOTE On Automotive A C Systems leak test with the engine not in operation 1 The air conditioning or refrigeration system should be charged with sufficient refrigerant to have a gauge pressure of at least 340 kPa 50 psi when not in opera tion At temperatures below 15 C 59 F leaks may not be measurable since this pressure may not be reached OPERATING TIPS NM 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 wiped off with a dry shop towel or blown off with shop air No clean ers or solvents should be used since the detector may be sensitive to their ingredients Visually trace the entire refrigerant system and look for signs of air conditioning
12. reen from left to right Then the LED s will light Orange from left to right replacing the Green one at a time Finally the LED s will light Red from left to right replacing the Orange one at a time OPERATING INSTRUCTIONS HE OPERATION Switch the unit on by pressing the ON OFF key The display will illuminate with the reset indication Left LED green all others Orange for 2 seconds Verify the battery level by observing the constant power indicator see above Upon turn on the unit is set to sensitivity level 5 A rapid but steady beep rate will be heard If desired the sensitivity can be adjusted by pressing the SENSI TIVITY a or SENSITIVITY key as described above Begin searching for leaks When refrigerant is detected the audible tone will change to a siren type sound distinctly different from the base beep rate Additionally the visual indicators will light progressively as described in the Alarm Indications section Sensitivity can be adjusted at any time during operation by using the SENSITIV ITY a or SENSITIVITY b key This adjustment will not interrupt detection If a full alarm occurs before the leak is pinpointed press the RESET key to reset the circuit to a zero reference as described above OPERATING TIPS HL The following section includes several general operating tips and the SAE J1628 recommended procedure for leak detection Adjust the sensitivity up only when a leak cannot be fou
13. vity The keys can be pressed intermittently to change levels one at a time or held down to move quickly through the levels Each time the level is increased or decreased the relative sensitivity is doubled or halved In other words level 2 is twice as sensitive as level 1 level 3 4 times as sensitive etc This allows sensitivity to be increased as much as 64 times Level 1 Leve 5 EN EN mmo Level 2 EE EE CCC Levei EN NN INN Level 3 EE EM EN 1 1L Level7 Level 4 EE Fig 5 Alarm Indications The ACL2500 features 18 alarm levels This permits a clear indication of relative leak size and strength The progressive indicators can be used to home in on a leak as the increasing alarm levels indicate that the source highest concentra tion is being approached Each level is indicated by additional LED s in one of three colors Green Orange or Red See Fig 6 Level 1 ME E O OA A A A Level 10 Level2 EE E m 3 L3 L3 L3 Level 11 Leve 3 NH EH EE L3 L3 Level 12 Level 4 E E mw rr Level 13 Level 5 UN Level 14 Level6 Level 15 Level 7 Level 16 Level 8 Level 17 Level 9 Level 18 Ese At first the display will light G
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