Amprobe DMIII-Multitest Power-Quality-Recorder - Manual (Page 8)

AMPROBE
DMIII MULTITEST
EN-6
2. GENERAL DESCRIPTION
2.1. INTRODUCTION
Dear Customer, we thank you for your patronage. The instrument you have just purchased
will grant you accurate and reliable measurements provided that it is used according to the
present manual’s instructions.
The instrument was designed to grant the user the utmost safety conditions thanks to a
new concept assuring double insulation and over voltage category III.
2.2.
FUNCTIONS
The instrument is able to perform the following tests:
 LOW

: Continuity Test of Protection and Equalising conductors with a test
current higher than 200mA and open circuit voltage ranging from 4V to
24V.
 INSULATION TEST: Measurement of insulation resistance with DC test voltage 50V, 100V,
250V, 500V or 1000V.

: Indication of phase rotation sequence
 GROUND TEST
Measurement of Ground Resistance and Resistivity using Earth rods.
 POWER QUALITY: The Instrument allows the following operations:

Display in real time the electrical parameters of a single-phase
and three-phase systems and the harmonic analysis of voltage
and current.
 Conduct a direct Energy measurement (without memorizing).
 Memorize (by pressing the SAVE key) the sampled values of the
Parameters present at instrument input generating a "Smp" record
inside instrument memory. It will be possible to analyze the
memorized data ONLY by transferring it to a PC.

Record simultaneously (pressing the START key after a proper
set up): RMS values of voltages, currents, corresponding
harmonics, active, reactive and apparent powers, power factors
and cos

, active, reactive and apparent energies, voltage
anomalies (voltage sag and surge) with 10ms resolution. It will be
possible to analyze the recorded data ONLY by transferring
them to a PC.
WARNING
Please note the difference between memorize and record. These terms
will be used repeatedly in this manual. Please focus on their definitions and
distinctions.