Table of Contents Title Page No. INTRODUCTION .................................................................. SAFETY PRECAUTIONS/WARNINGS .............................. SPECIFICATIONS ............................................................... CONTROLS AND INDICATORS ........................................ TESTING PROCEDURES .................................................. AUXILIARY FUNCTIONS .................................................... BATTERY AND FUSE REPLACEMENT ......................
INTRODUCTION Congratulations. You have purchased a precision instrument manufactured to the highest quality standards. This Digital Automotive Tester is a general-purpose instrument designed for use in general electronics, home electrical applications, and automotive electrical/electronic systems. This tester is designed to test or measure AC voltage, DC voltage, DC current, AC current, resistance, diodes, continuity, frequency, duty cycle, pulse width, rpm and temperature.
Always inspect the tester, test leads and any other accessories for damage prior to every use. If any damage is found, do not use tester until repairs are done. Always consider electrical and electronic equipment to be energized (live). Never assume any equipment is de-energized. Do not connect probes to any available (unused) terminal while the meter is connected to a hazardous live circuit. Never ground yourself when taking electrical measurements.
Automatic zero adjustment Over range indicator (except 15 A function). Displays "OL" on LCD Low battery indicator. Displays battery symbol Automatic power shut off (after 10 idle minutes) Pollution Degree 2 Measuring circuit category II Operating environment: Temperature - 32° to 104° F.
ACV TRMS [1] NOTE: Specifications are AC-coupled true RMS. Range Resolution Accuracy 400mV 100μV ±(1.2% of reading +8 digits) 4V 1mV 40V 10mV ±(0.8% of reading +8 digits) 400V 1V 600V ±(1.2% of reading +8 digits) Overload Protection 250V DC RMS 600V DC/AC RMS Input Impedance: 10MΩ for all ranges. Frequency Response: 50 – 400Hz [1] All ac ranges are specified from 1 % to 100 % of range. Below 5 % of range, add 6 counts (in the range 400mV, an additional 2mV.
DC CURRENT (AMPS) Range Resolution 40mA 10μA 400mA 100μA *15A 10mA Accuracy Overload Protection ±(1.5% of reading +5 digits) 0.5A/250V fast fuse Input Voltage Drop: <0.2V. ±(2.5% of reading +5 digits) Unfused; 15sec maximum Input Voltage Drop: <0.2V. * A waiting period of at least 15 minutes is necessary between every 15 second testing period. AC CURRENT TRMS [1] NOTE: Specifications are AC-coupled true RMS. Range Resolution 40mA 10μA 400mA 100μA Accuracy ±(2.
TEMPERATURE Range Accuracy 32°F to 104°F (0°C to 40°C) ±5°F/±3°C -58°F to 392°F (-50°C to 200°C) ±1.5%/±5°F (±1.5%/±3°C) 392°F to 752°F (200°C to 400°C) ±2%/±5°F ±2%/±3°C) Overload Protection 0.5A/250V fast fuse WARNING To avoid fire and/or electrical shock hazards, DO NOT connect the thermocouples to circuits greater than 30 Vrms, 42.4 Vpk or 60 Vdc. FREQUENCY Range 9.999Hz2MHz Resolution 0.001Hz Accuracy ±(0.
WARNING Risk of Explosion. This equipment has internal arcing and sparking parts, which should not be exposed to flammable vapors. This equipment is only suitable for installation in a garage having sufficient air circulation to be considered a non-hazardous location. WARNING Ignition coils produce a very high voltage. To reduce the risks of electric shock when conducting RPM tests, DO NOT touch the uninsulated ends of the test probes, the ignition coil, or the coil terminals when the engine is running.
8. Temperature Function (Fahrenheit): Measures temperature in °F. Auto-ranging from -58°F to +752°F. (Optional “KType” thermocouple required). 9. Press SEL button (see item 19) to select desired function: ACmA Function: Measures AC current in milliamps. One range: 0 to 400 milliamps. DCmA Function: Measures DC current in milliamps. One range: 0 to 400 milliamps. 10. 15A Function: Measures DC current. One range: 15Amps (DC from 0 to 15 amperes). Unfused. 11. Clamp Current Function 12. 13. 14. 15.
25. 15A Input Jack. For red test lead probe connection when measuring high DC current (up to 15 amps only). 26. DWELL ANGLE, MS °C, °F, BAT, ACmA/DCmA, CLAMP CURRENT, RPM and COP Input Jack. 27. Liquid Crystal Display (LCD): Displays results of tests or measurements. Preparation and Caution Before Use Inspect the Digital Automotive Tester for damage to the case. Do not use if cracked, distorted, excessively dirty or any abnormal condition exists. Inspect the test leads for damage.
1. Plug the BLACK test lead into "COM" jack of the tester; plug the RED test lead into the "V" jack. NOTE: If alligator clip adapters (not included with tester) are to be used on the test leads, use suitable rated and UL certified alligator clips. 2. Set the tester’s Function/Range Selector Switch to the appropriate DCV or ACV position as desired (see Controls and Indicators, Items 1 and 2). 3.
NOTE: A diode is a semiconductor device that lets current flow in one direction only. If the diode to be tested is part of a circuit (with other electronic components), you must isolate it from the other components by disconnecting at least one side of it from the circuit before testing. A good diode will show a low voltage drop across its junction (0.5-0.8 volts for a silicon diode or about 0.
E. FREQUENCY MEASUREMENT Frequency is the number of times that an event repeats itself during a one-second time period. Frequency is measured in Hertz (Hz). 1. Plug the RED test lead into the “Hz” jack of the tester; plug the BLACK test lead into the "COM" jack. 2. Set the tester’s Function/Range Selector Switch to the Hz position (see Controls and Indicators, Item 4). 3.
H. TEMPERATURE MEASUREMENT WARNING To avoid fire and/or electrical shock hazards, DO NOT connect the thermocouples to circuits greater than 30 Vrms, 42.4 Vpk or 60 Vdc. NOTE: Temperature measurement requires use of an optional “K-type” thermocouple. 1. Plug the Positive (+) test lead of the “K-type” thermocouple into the °C / °F jack of the tester; plug the Negative (-) test lead into the “15A” jack. 2.
To measure from 0 to 400mA, set the Selector Switch to . To measure from 400mA to 15 Amps DC, set the Selector Switch to the "15A" position. 3. Disconnect the battery, or shut off the power to the circuit being tested. NOTE: To measure current on a particular circuit, you must open up the circuit and connect the test leads in series with the circuit before a reading can be obtained. 4. Disconnect one end of the wire or device, from the circuit where current will be measured. 5.
WARNING Ignition coils produce a very high voltage. To reduce the risk of electric shock when conducting RPM tests, DO NOT touch the uninsulated ends of the test probes, the ignition coil, or the coil terminals when the engine is running. 1. Plug the RED test lead into the "RPM" jack of the tester; plug the BLACK test lead into the "COM" jack. 2. Place the RED test lead onto the “Tachometer Signal port” of the vehicle’s ignition system, or onto the negative (-) side of the ignition coil.
Do not apply around or remove from Hazardous Live conductors. 1. Turn the ignition off. DO NOT CONNECT THE INDUCTIVE PICKUP WITH THE ENGINE RUNNING OR WITH THE IGNITION ON. 2. Clamp the inductive pickup clamp around the No. 1 spark plug wire. 3. Plug the RED inductive pickup lead into the "RPM" jack of the tester; plug the BLACK inductive pickup lead into the "COM" jack. 4. Set the tester’s Function/Range Selector Switch to the or position, as appropriate (see Controls and Indicators, Item 12 and 13).
2. Press the HOLD button again to turn the function “off.” The HOLD icon will disappear, and the value will no longer be “locked” in the display. NOTE: The data HOLD function is not available for the DIODE TEST, CONTINUITY TEST or PULSE WIDTH MEASUREMENT. B. MINIMUM/MAXIMUM VALUE FUNCTION The MAX/MIN function records and saves the maximum and/or minimum readings that were achieved during a test. 1.
For battery replacement: Remove one screw from the battery compartment cover. Use your finger or a small coin to remove the cover. Remove the battery and replace with one 9-volt battery. For fuse replacement: Remove the three screws (you must remove the meter stand to remove the third screw) on the back of the meter and separate the case. Remove the fuse from the fuse holder and replace with a 0.500A/250V - UL Listed Bussmann, GMA Type (Radio Shack GMA/270 Series: #270-1047) fuse. NOTE: Use a 0.
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LIMITED ONE YEAR WARRANTY The Manufacturer warrants to the original purchaser that this unit is free of defects in materials and workmanship under normal use and maintenance for a period of one (1) year from the date of original purchase. If the unit fails within the one (1) year period, it will be repaired or replaced, at the Manufacturer’s option, at no charge, when returned prepaid to the Service Center with Proof of Purchase. The sales receipt may be used for this purpose.
