Manufacturer: Amprobe
Brand: Amprobe
Model: AM-250
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The Amprobe AM-250 digital multimeter is an average-sensing, auto- or manual-ranging meter for measuring current, voltage, resistance, capacitance, frequency, and microcurrent in heating, ventilating, and air-conditioning (HVAC) and 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 1,000 volts (V), resistance to 40 megaohms, capacitance to 3,000 microfarads, frequency to 1 megahertz (MHz), and AC and DC microcurrent to 4,000 amp. The microamp reading identifies current changes in flame detector applications. The maximum reading mode displays the highest reading in a session to track a sudden increase or decrease in readings. The relative zero mode stores a reading in memory to use as a zero point for subsequent readings, allowing for quick comparison of readings. The hold function keeps a reading on the display, even after the meter is disconnected. The backlit liquid crystal display (LCD) is visible in low light. An audible continuity sensor confirms that the circuit conducts electricity, and a diode test detects whether the circuit's diodes work properly. An auto power-off mode turns off the unit after 30 minutes of non-use to conserve battery life, and a low-battery indicator signals when the meter's batteries need to be replaced. The meter measures temperature when used with compatible K-type thermocouple probe (not included).This average sensing, or average responding, meter provides accurate readings when measuring linear loads, such as standard induction motors and incandescent lights, where the current or voltage has a sinusoidal waveform. Two ranging modes (auto or manual) offer a range of operator control when taking readings. When turned on, the meter is in auto-ranging mode and automatically selects the correct operating range for the property being measured. It can be switched to manual-ranging mode, which allows the operator to choose the appropriate operating rang...
