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Actron CP7672 Automobile Accessories User Manual
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1. 0 12 12 102 0 8 rdg 2 dgts 1002 1KQ 1 rdg 2 dgts Diode Check Use this test to check for open or shorted diodes Transistor Check hFE Use this test to check for open or shorted transistors PRECAUTIONS AND PREPARATION FOR MEASUREMENT 1 Be sure that a fresh nine 9 volt battery is correctly installed in the multitester 2 Compare the position of the selector switch with the anticipated test result In the case of voltage or current measurement always select a range which is high enough to handle the worst case result Voltage or current may be higher than you expect 3 The BLACK test lead is always inserted in the COM common jack on the multitester The RED test lead must be inserted in either the VOmA Volt ohm milliAmp jack or the 10ADC Amperes DC jack depending on the test being performed Incorrect placement of the RED test lead may damage the multitester the circuit under test or both 4 The 10 Amp range on the multitester is not fused Exercise extreme caution 5 Operate the multitester only in temperatures between 0 C and 50 C 32 F 122 F and at 80 or less relative humidity RH 6 Turn the SELECTOR switch to the OFF position when testing is completed If the multitester will not be used for an extended period of time remove the internal nine 9 volt battery to avoid damage from leakage 7 Do not store the multitester in direct sunlight or in areas
2. battery or your tools and testers Be careful of contact with battery acid It can burn holes in your clothing and burn your skin or eyes When operating any test instrument from an auxil iary battery connect a jumper wire between the negative terminal of the auxiliary battery and ground on the vehicle under test When working in a garage or other enclosed area auxiliary battery should be located at least 18 inches above the floor to minimize the possibility of igniting gasoline va pors HIGH VOLTAGE High voltage 30 000 to 50 000 volts is present in the ignition coil distributor cap ignition wires and spark plugs When handling ignition wires while the engine is running use insulated pliers to avoid a shock While not lethal a shock may cause you to jerk involuntarily and hurt yourself JACK The jack supplied with the vehicle should be used only for changing wheels Never crawl under car or tun engine while vehicle is on a jack The following is a list of publishers who have service manuals for your specific vehicle Write or call them for availability and prices specifying the make style model year and VIN Vehicle Identification Number of your vehicle ORIGINAL EQUIPMENT MANUFACTURERS VEHICLE SERVICE MANUALS American Motors Chrysler Corporation Pontiac Nissan North America Dyment Distribution Services 20770 Westwood Drive Strongsville OH 44136 440 572 0725 Cadillac Chevrolet Helm Incorporat
3. rings or other jewelry when working on your car You ll avoid the possi bility of catching them on moving parts or causing an electrical short circuit which could shock or burn you VENTILATION The carbon monoxide in exhaust gas is highly toxic To avoid asphyxiation always operate ve hicle in a well ventilated area If vehicle is in an enclosed area exhaust should be routed directly to the outside via leakproof exhaust hose SETTING THE BRAKE Make sure that your car is in Park or Neutral and that the parking brake is firmly set NOTE Some vehicles have an automatic release on the parking brake when the gear shift lever is removed from the PARK position This feature must be disabled when it is necessary for testing VEHICLE SERVICE INFORMATION to have the parking brake engaged when in the DRIVE position Refer to your vehicle service manual for more information HOT SURFACES Avoid contact with hot surfaces such as exhaust manifolds and pipes mufflers catalytic convert ers radiator and hoses Never remove the radia tor cap while the engine is hot as escaping coolant under pressure may seriously burn you SMOKING AND OPEN FLAMES Never smoke while working on your car Gasoline vapor is highly flammable and the gas formed in a charging battery is explosive BATTERY Do not lay tools or equipment on the battery Accidentally grounding the HOT battery terminal can shock or burn you and damage wiring the
4. CP7672 GENERAL PURPOSE DIGITAL MULTITESTER INSTRUCTION MANUAL SAFETY GUIDELINES Your Digital Multitester is designed for both home and automotive use The following Safety Guidelines are provided when it is used for engine or vehicle testing To prevent accidents that could result in serious injury and or damage to your vehicle or test equipment carefully follow these safety rules and test proce dures SAFETY EQUIPMENT Fire Extinguisher Never work on your car without having a suitable fire extinguisher handy A 5 Ib or larger CO or dry chemical unit specified for gasoline chemical elec trical fires is recommended Fireproof Container Rags and flammable liquids should be stored only in fireproof closed metal containers A gasoline soaked rag should be allowed to dry thoroughly outdoors before being discarded Safety Goggles We recommend wearing safety goggles when work ing on your car to protect your eyes from battery acid gasoline and dust and dirt flying off moving engine parts NOTE Never look directly into the carburetor throat while the engine is cranking or running as sudden backfire can cause burns LOOSE CLOTHING AND LONG HAIR MOVING PARTS Be very careful not to get your hands hair or clothes near any moving parts such as fan blades belts and pulleys or throttle and transmission link ages Never wear neckties or loose clothing when working on your car JEWELRY Never wear wrist watches
5. V FUSE REPLACEMENT All milliampere mA ranges of this multitester are fuse protected Should the current exceed 200 mA in any of these ranges the fuse may open To maintain safe operation of the multitester replace it only with a 200 mA 250 V 5mm x 20mm fast acting glass fuse Replace the fuse as follows 1 Turn the SELECTOR switch OFF 2 Remove the bottom case half 3 Remove the battery 4 Using a small blade screwdriver or other suitable tool gently pry the open fuse out of its holder a Install a new fuse 6 Reinstall the battery and bottom case half REPLACEMENT PARTS The following replacement parts are available for your multitester Consult your retailer or the manufacturer for assistance PART NUMBER DESCRIPTION 0002 001 2387 Instruction Manual 0044 000 0121 200 mA 250V Fuse 0038 000 3256 Red Black Test Lead Set actron precision electronic solutions 0002 001 2387 15825 Industrial Parkway Cleveland Ohio 44135
6. ed Post Office Box 07130 Detroit MI 48207 Oldsmobile Lansing Lithographers Post Office Box 23188 Lansing MI 48909 Toyota Motor Ford Publications Dept Corporation Helm Incorporated Post Office Box 07150 Toyota Service Publications 750 W Victoria St Buick Detroit MI 48207 Compton CA 90220 5538 Tuar Company CA residents Post Office Box 354 Honda Motor Co Ltd 1 800 443 7656 Flint MI 48501 Helm Incorporated Outside CA Post Office Box 07280 1 800 622 2033 Detroit MI 48207 313 883 1430 AFTERMARKET VEHICLE SERVICE MANUALS Chilton Book Company Cordura Publications Chilton Way Radnor PA 19089 Motor s Auto Repair Mitchell Manuals Inc Manual Post Office Box 26260 San Diego CA 92126 Hearst Company 250 W 55th Street New York NY 10019 DESCRIPTION AND SPECIFICATIONS DESCRIPTION This Digital Multitester is a compact hand held easy to use instrument compatible both with home electrical applications as well as the electrical systems used in modern passenger cars and trucks It may also be used to measure voltages in the computer control circuits of computer controlled vehicles SPECIFICATIONS Display 3 1 2 digit 5 inch LCD Liquid Crystal Display Automatic Polarity Sensing Display shows a minus sign on the DC Volts and Amps functions when lead hookup is reversed Zero adjustment Unit automatically zeroes on the volts and Amps functions Over range indication Lef
7. of high temperature or high humidity MEASUREMENT PROCEDURES 1 VOLTAGE MEASUREMENT a Set the SELECTOR switch to the ACV or DCV voltage position b Plug the BLACK test lead into the COM input jack on the multitester c Plug the RED test lead into the VOmA input jack on the multitester d Connect the test leads to the circuit under test observing proper polarity when measuring DC voltage e Read the result on the digital display If the display reads over range 1 switch to a higher range within the ACV or DCV function 2 DC MILLIAMP MEASUREMENT Set the SELECTOR switch to the DCA current position Plug the BLACK test lead into the COM input jack on the multitester Plug the RED test lead into the VQmA input jack on the multitester Connect the test leads to the circuit under test observing proper polarity 2 00 opw Read the results on the digital display If the display reads over range 1 switch to a higher range within the DCA function 3 DC 10 AMPS MEASUREMENT Set the SELECTOR switch to the 10 A current position Plug the BLACK test lead into the COM input jack on the multitester Plug the RED test lead into the 10ADC input jack on the multitester Connect the test leads to the circuit under test observing proper polarity 29 5 Read the result on the digital display 4 RESISTANCE MEASUREMENT a Set the SELECTOR switch to the required resistance Q ohms position b Plug the BLACK test lead in
8. to the COM input jack on the multitester c Plug the RED test lead into the VOmA input jack on the multitester d Connect the test leads to the circuit under test e Read the result on the digital display If the display reads over range 1 switch to a higher range within the resistance function 5 DIODE CHECK a Set the SELECTOR switch to the gt diode position b Plug the BLACK test lead into the COM input jack on the multitester c Plug the RED test lead into the VOmA input jack on the multitester d Connect the test leads to the diode under test The diode must be removed from the circuit to achieve proper results e Read the result on the digital display Reverse the test lead connections at the diode Read the result on the digital display oe A good diode will show a low reading with the test leads connected one way and infinity 1 with the test leads connected the other way The low reading will typically be some three digit number on the display The actual number is not critical 6 TRANSISTOR CHECK a Set the SELECTOR switch to the hFE position b Determine whether the transistor is NPN or PNP type and locate the Emitter Base and Collector leads Insert the leads into the proper holes of the hFE socket located on the front of the multitester c The display will show an appropriate value of the transistor hFE measured under the following condition base current 10mA collector emitter voltage 2 8
9. tside of display shows either 1 or 1 when range in a function is exceeded Operating temperature 0 C 35 C 32 F 95 F 0 80 R H 35 C 50 C 95 F 122 F 0 70 R H Measurement rate 2 5 measurements per second nominal Power Nine 9 volt alkaline or carbon zinc battery NEDA 1604 Accessories Test leads pair instruction manual FUNCTIONS AND DISPLAY The analyzer provides the following functions and displays them as indicated OFF To preserve battery life always return the rotary switch to OFF when testing is complete Accuracies are reading No of digits at 23 C 5 C 75 F 9 F less than 75 R H AC Volts Accuracy 45Hz 450Hz 100mv 1 2 rdg 10dgts PC 1000V 1V AC 750V Overvoltage Protection Resolution DC Volts Overvoltage Protection DC 500V AC 220V Resolution Accuracy 100V 0 25 rdg 2 dgts 1mV 0 5 rdg 2 dgts 10mV DC 1000V 100mV AC 750V 1V DC Current Voltage Range Resolution Burden 200A 0 14A Accuracy 2000A 14A 1 rdg 2 dgts 20mA 10A 200mA 100UA 1 2 rdg 2 dgts Overload protection mA Input 200mA 250V fuse DC 10A Range Resolution Accuracy Voltage Burden 10A 10mA 2 rdg 2 dgts 200mV Overload protection un fused up to 10A for 15 seconds Resistance Max Open Resolution Accuracy Circuit Voltage
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