The Greenlee DM-830A Digital Multimeters is a hand-held testing devices with the following measurement capabilities: AC and DC voltage, AC and DC current,frequency, resistance, capacitance, and duty cycle of logic level signals. They also check diodes andverify continuity. All meters feature true RMS AC measurements, a relative zero mode, data hold mode,and an intelligent automatic power off. An optional optically isolated computer interface with softwarefacilitates the recording of readings from the meter to a computer.
The DM-830A multimeters have the following additional capabilities: temperature (K-type thermocouples only); conductance; a crest function, which captures voltage orcurrent signal peaks; and a recording function, which stores the maximum, minimum, and difference(maximum-minimum) input readings. The DM-830A record function can also calculatethe average reading. These two models also have non-contact and single-probe voltage detection.
The DM-830A multimeters have an AutoCheck™ function for automatic selection of AC voltage, DC voltage, and resistance with low input impedance to mask “ghost” voltages. The multimeter features a T1-T2 function, which can measure and display two temperatures and calculatethe difference. They also feature AC + DC true RMS measurement capability. The DM-830A has a dBmfunction with selectable reference impedances.
