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Amprobe® Test Tools
Data Sheet
No hassle
warranty
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charges.
Our commitment to
high-quality products
and customer service
is demonstrated by
our industry exclusive
“No Hassle” warranty.
In the unlikely event
that an Amprobe Test
Tool requires warranty
service, any of our
local dealers are
authorized to replace
it, on the spot.
(note: $500 MSLP limit)
DM-II Plus
Power Quality Recorder
AC Current up to 1000A, AC Voltage, Active, Reactive and ■
Apparent Power, Energy, Peak Demand & Power Factor
All readings are True RMS
■
5 built-in selectable languages: English, French, Italian, ■
German and Spanish
User selectable rates allow recording from one hour to
■
several months
Works with single & three phase systems (Y & delta)
■
Readings and charts can be viewed on the DM-II LCD screen ■
or downloaded to a PC
Capable of recording all parameters (single or three phase)
■
simultaneously
Optional transducers available for 100A and 3000A (flexible)
■
current capability.
Amprobe’s DM-II PLUS is a full-featured three phase
power quality recorder to maintain, diagnose and
troubleshoot electrical systems. It measures and records
a broad spectrum of power quality parameters. Easy
to use, it’s capable of measuring and recording voltage,
current, voltage anomalies (sags or surges), harmon-
ics, energy and power (active, reactive and apparent),
power factor (true and displacement), and frequency.
This unique product comes as a complete kit with current
transducers and an increased memory size for data
storage, larger display size, and real-time downloading
using Amprobe’s unique Download Suite software.
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Data Sheet
DM-II Plus Power Quality Recorder
General Specifications
Specifications Accuracy 73°F± 2°F (23°C ± 1°C) with relative humidity < 75%
Voltage measurement (Autoranging)
Range Accuracy Resolution Input impedance
15-370V ±(0.5% + 2 digit) 0.2V 300kW (phase-neutral)
310-635V ±(0.5% + 2 digit) 0.4V 600kW (phase-phase)
Voltage Anomalies Detection (Manual Selection of Range)
Voltage
Range Accuracy Resolution Input impedance
15-370V ±(0.5% + 2 digit) 0.2V 300kW (phase-neutral)
30-635V ±(0.5% + 2 digit) 0.4V 600kW (phase-phase)
Current measurement (DM-II Plus only)
Range Accuracy Resolution Input impedance Protection against overloads
0.005-0.26V ±(0.5%+2digit) 0.0001V 100kW 5V 0.26-1V 0.0004V
Current measurement (Using DM-CT-HTA)
Range Accuracy Resolution Protection against overloads
5 to 1000 A ±(1.5% of range) 0.1 A 600 V
Minimal Current measurable is equal to 1.5% of Clamp Full Scale
Mechanical Features
Dimensions: 444.5(L) x 273.05(La) x 190.5(H) mm
17.50”(L) x 10.75” (La) x 7.50”(H)
Weight: 11.5 Lb (5.2kg)
Internal power supply: 6 batteries 1.5V D size NEDA 13A, IEC L20R
Battery Life: 22 hours
External power supply Use only Amprobe power supply Adapter code DMT-EXTPS.
Display: dot matrix with backlight
resolution 128 x 128 dots (16384 dots)
dot size 0.5mm x 0.5mm
visible area 73mm x 73mm (2.9” x 2.9”)
No. of samples per period 128
Clamp:
Opening: 53 mm (2.15”)
Maximum diameter of the cable: 50 mm (2.00”)
Reference temperature: 23°C ± 1°C (73°F ± 2°F)
Operating temperature: 0°C to 50 °C (32°F to 122°F)
Relative humidity: <70%
Storage temperature: -10°C to 60 °C (14°F to 140°F)
Storage humidity: <80%
Location: Indoor operation, < 2000 m
EMC/EMI/ESD EN61326-1:2006
Safety
The instrument complies to the standards: EN 61010-1 :2002
Insulation: Class 2 / Pollution Degree 2
Over-voltage category: CAT III 370V~ (Phase-Earth)
CAT III 635V~ (Phase-Phase)
Clamps: IEC 61010-2-032 Ed. 2.0
Phase Sequence Detection: EN 61557-7:2003
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Data Sheet
DM-II Plus Power Quality Recorder
Specifications, cont.
Current measurement (Using AM-FLEX 33)
Range Accuracy Resolution Protection against overloads
15 to 3000 A ±(1.5% of range) 0.1 A 600 V
Minimal Current measurable is equal to 1.5% of Clamp Full Scale
Power measurement (cos : 0.5c[positive] – 0.5i[negative])
Value Ranges Accuracy Resolution
Active power 0 – 999.9W ±(1.5% + 2 digit) 0.1W
1kW – 999.9kW ±(1.5% + 2 digit) 0.1kW
1MW – 999.9MW ±(1.5% + 2 digit) 0.1MW
Reactive power 0 – 999.9VAR ±(1.5% + 2 digit) 0.1VAR
1kVAR – 999.9kVAR ±(1.5% + 2 digit) 0.1kVAR
1MVAR – 999.9MVAR ±(1.5% + 2 digit) 0.1MVAR
Apparent power 0 – 999.9VA ±(1.5% + 2 digit) 0.1VA
1kVA – 999.9kVA ±(1.5% + 2 digit) 0.1kVA
1MVA – 999.9MVA ±(1.5% + 2 digit) 0.1MVA
Active energy 0 – 999.9Wh ±(1.5% + 2 digit) 0.1Wh
1kWh – 999.9kWh ±(1.5% + 2 digit) 0.1kWh
1MWh – 999.9MWh ±(1.5% + 2 digit) 0.1MWh
Reactive energy 0 – 999.9VARh ±(1.5% + 2 digit) 0.1VARh
1kVARh – 999.9kVARh ±(1.5% + 2 digit) 0.1kVARh
1MVARh – 999.9MVARh ±(1.5% + 2 digit) 0.1MVARh
Cos measurement
Cos Resolution Accuracy (expressed in degrees)
0 to 0.20 0.01 0.6
0.21 to 0.50 0.01 0.7
0.51 to 0.80 0.01 1
Measurement of Harmonics
Voltage
Range Accuracy Resolution
DC – 25h ±(5.0% + 2 digit) 0.1V
26h – 33h ±(10.0% + 2 digit) 0.1V
34h – 49h ±(15.0% + 2 digit) 0.1V
The voltage harmonics will be null under the following threshold:
- DC: if <1V or <2% of 1st harmonic
- 1st harmonic: if <2V
- 2nd to 49th: if <1V or <2% 1st harmonic
Current
Range Accuracy Resolution
DC – 25h ±(5.0% + 2 digit) 0.1A
26h – 33h ±(10.0% + 2 digit) 0.1A
34h – 49h ±(15.0% + 2 digit) 0.1A
The current harmonics will be null under the following threshold:
- DC: if <2% of 1st harmonic or < 0,2% of clamp full scale
- 1st harmonic: if < 0.2% of clamp full scale
- 2nd to 49th: if<2% 1st harmonic or < 0.2% of clamp full scale
Setting the FLEX option the DC component will be ignored.
Frequency Measurement
Instrument set to 50Hz
Range Resolution Accuracy
47 to 53 0.1Hz ±(1.0% + 1 digit)
Instrument set to 60Hz
Range Resolution Accuracy
57 to 63.6 0.1Hz ±(1.0% + 1 digit)
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Amprobe® Test Tools
Data Sheet
Amprobe® Test Tools
website: www.Amprobe.com
email: info@amprobe.com
Everett, WA 98203
tel: 877-AMPROBE
Amprobe® Test Tools Europe
In den Engematten 14
79286 Glottertal, Germany
Tel.: +49 (0) 7684 8009 - 0
©2007 Amprobe Test Tools. All rights reserved.
2/2008 3306952 Rev A
DM-II Plus Power Quality Recorder
Included Accessories
DMT-EXTPS External power supply 12VDC
DM-CT-HT (code 1 pcs) 3 clamp meters 1000A/1V
KITENERGY3 4 cables and alligators for
voltage measurement
Download Suite 2.2 1 Amprobe Custom Software CD
C232NG1 Serial Cable
Optional Accessories
AM-FLEX33 Flexible current transducer, 3000 A
DM-CT-100 Current transducer, 100A
