: Do not exceed the maximum rated voltage (typically 600V AC/DC) to avoid electrical shock or equipment failure.
: Check the internal fuse; blown fuses are common if the red lead was incorrectly placed in the 10A port during a voltage check.
: Replace the 9V battery and check for secure connections. Mac Tools Et 130 Manual
: Wipe the exterior with a clean, dry, lint-free cloth. Do not use solvents or abrasive cleaners [ 0.5.1 ].
: Inspect test leads for fraying or broken wires. : Do not exceed the maximum rated voltage
: If the unit fails to calibrate or function, it must be sent to the Mac Tools Repair Center with all components (leads, batteries) included for diagnosis [0.5.2]. 5. Troubleshooting Common Issues
Set dial to the . Used to check the health of alternators or charging system components. 4. Maintenance and Storage : Wipe the exterior with a clean, dry, lint-free cloth
: The red lead plugs here for most voltage and resistance tests. 10A : Used strictly for high-current measurements. 3. Operational Guide Measurement Type Setup & Procedure Voltage (DC)