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The DM-III Multitest F is a multitalented
device that provides everything an electrical engineer or a
technician needs to perform maintenance or installations on the
electrical system. The DM-III Multitest measures and records three
phase voltage, current, voltage anomalies (sags
or surges), harmonics, energy and power (active, reactive and
apparent), power factor (true and displacement), frequency
and phase sequence. It can test wires and motors for proper
insulation, as well as it can measure the resistance of the
grounding systems and resistivity of insulation, as well as it can
measure the resistance of the grounding systems and resistivity of
the soil. On board memory makes it a perfect tool for preventing
maintenance applications.
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Amprobe DM-III Specifications (PDF)
(documents are in PDF format and will open in a new
window)
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Features Power Quality
Analyzer/Data Logger
- True RMS (TRMS)
- Measures and Records Broad Spectrum of Power Quality
Parameters.
- AC Current.
- AC Voltage to 600V.
- Sags and Surges.
- Harmonics (THD and individual up to 49th).
- Active, Reactive and Apparent Power.
- Peak Demand.
- Power Factor.
- Frequency.
- Phase Sequence.
- Compatible with wide range of Current Transducers.
- Single or Three-Phase measurements (Y and Delta).
- Phase sequence indication.
- Records up to 64 parameters (single or three-phase)
simultaneously.
- Built-in Scope displays waveforms.
- Manual and Programmable recording Start.
- Password protection.
- Special data compression system and user selectable, rates
allow recording from several hours to several years.
- Line or battery powered.
Megohmmeter functions
- Tests insulation integrity of wires, cables, transformers and
electrical motors.
- Selectable test voltages up to 1000V.
- Programmable timer to perform the Dielectric Absorption Ratio
Test.
- Sensitive Ohmmeter for checking resistance of motor windings.
- Selectable polarization of ohmmeter for checking grounding
continuity.
Ground Resistance and Resistivity Functions
- 2-point continuity/resistance testing.
- 3-point Fall of Potential test.
- 4-point Earth Resistivity measurement.
- Automatic voltmeter protects against misuse on hazardous
energized systems.
- Accumulates the average of multiple tests and displays the
individual test results and number of tests.
- Detects faulty test conditions such as poor soil conditions
and input noise.
Phase Sequence
- Phase sequence indication.
- Frequency measurement.
- Phase-to-Phase voltage measurement.
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