User manual GREENLEE DM-100

[. . . ] Hazards which, if not avoided, COULD result in severe injury or death. Hazards or unsafe practices which, if not avoided, MAY result in injury or property damage. Read and understand this material before operating or servicing this equipment. Failure to understand how to safely operate this tool can result in an accident causing serious injury or death. [. . . ] Display Function Buttons Selector Hz VµA COM 10A 4-digit LCD and bar graph See explanations under Using the Features Selects a function or turns power OFF Positive input terminal for all measurements except 10 A current ( Hz on DM-110 only) Negative, common or ground input terminal for all measurements Positive input terminal for current measurements up to 10 A Note: Unidentified icons are not used on these models. Two AC measurement methods are average-responding RMS calibrated and true RMS-reading. The true RMS-reading method uses internal circuitry to read the true RMS value. This method is accurate, within the specified crest factor limitations, whether the input signal is a pure sine wave, a square wave, triangle wave, half wave or signal with harmonics. The ability to read true RMS provides much more measurement versatility. the Greenlee DM-110 is a true RMS meter. The Waveforms and Crest Factors table shows some typical AC signals and their RMS values. Select trigger levels when measuring frequency turn power back on after auto power off view the frequency while measuring AC voltage or current hold a measured value for all functions. Press again to return to normal mode While in the Hz mode, the RANGE button does not change the frequency range. Conversions are made but the display does not update. Set the selector to the proper setting, press the unlabeled blue button to select the desired measurement, and connect the test leads to the meter. Test the unit on a known functioning circuit or component. ⷠIf the unit does not function as expected on a known functioning circuit, replace the battery and/or fuse. ⷠIf the unit still does not function as expected, send the unit to Greenlee for repair. Take the reading from the circuit or component to be tested. If the resolution is not satisfactory, remove the meter from the circuit and change to the next lower range if using manual ranging. Capacitance* (DM-110 only) Continuity** and press the BLUE button one time µA and press the BLUE button one time µA 10A and press the BLUE button one time 10A A Diode*** Frequency (DM-110 only) Resistance Voltage (AC) Voltage (DC) * ** *** and press the BLUE button two times Hz V and press the BLUE button one time V mV or V Discharge capacitor before measurement. Tone sounds if the measured resistance is less than approximately 30 . The meter defaults to automatically turn itself off after a period of inactivity from the user. on the display indicates that the feature is enabled. The meter beeps approximately 15 seconds prior to turning off. The DM-100 turns off after 10 minutes, and the DM-110 turns off after 30 minutes. [. . . ] When fuse replacement is necessary, see Specifications for the correct type, size, and capacity. using any other type of fuse will void the overvoltage protection rating of the unit. Failure to observe this warning can result in severe injury or death. Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives or solvents. [. . . ]