Manufacturer: Amprobe
Brand: Amprobe
Model: AM-140-A
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The Amprobe AM-140-A digital multimeter is a true RMS (root mean square), auto- or manual-ranging meter for measuring current, voltage, resistance, capacitance, frequency, duty cycles, milliamp loop current, and power in decibels relative to miliwatts (dBm) in electrical testing applications. The meter comes with a set of detachable test leads that measure alternating current (AC) and direct current (DC) to 10 amp, AC voltage and DC voltage to 1,000V, resistance to 50 megaohms, capacitance to 10,000 microfarads, line-level frequency to 200 kilohertz (kHz), logic-level frequency to 2 megahertz (MHz), duty cycles to 99%, 4- to 20-milliamp DC loop current, and power to 54.25 decibels relative to miliwatts (dBm). The AM-140-A TRMS digital multimeter has a port for connecting the meter to a computer (software and cable not included). The instantaneous peak hold function records peak positive or negative AC or DC current or voltage measurements lasting for as little as 0.8 milliseconds in duration. The maximum or minimum reading mode displays the highest or lowest reading in a session to track a sudden increase or decrease in readings. A liquid crystal display (LCD) shows readings both in digits and on a 42-segment bar graph. The display is backlit for visibility in low light. The relative zero mode stores a reading in memory to use as a zero point for subsequent readings, allowing for quick comparison of readings. An audible continuity sensor confirms that the circuit conducts electricity, and a diode test detects whether the circuit's diodes work properly. The hold function keeps a reading on the display, even after the meter is disconnected. An auto power-off mode turns off the unit after 17 minutes of non-use to conserve battery life, and a low-battery indicator signals when the meter's batteries need to be replaced.This true RMS (root mean square) sensing meter provides accurate readings when measuring linear loads, such as standard induction motors and incandescent lights, where the current or voltage has a sinus...
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