Data Sheet
DM-II Plus
Power Quality Recorder
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.
No hassle
warranty
No waiting.
No shipping
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)
■
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® Test Tools
www.Amprobe.com
DM-II Plus Power Quality Recorder
General Specifications
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)
11.5 Lb (5.2kg)
6 batteries 1.5V D size NEDA 13A, IEC L20R
22 hours
Use only Amprobe power supply Adapter code DMT-EXTPS.
dot matrix with backlight
128 x 128 dots (16384 dots)
0.5mm x 0.5mm
73mm x 73mm (2.9” x 2.9”)
128
Data Sheet
Weight:
Internal power supply:
Battery Life:
External power supply
Display:
resolution
dot size
visible area
No. of samples per period
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
Specifications Accuracy
73°F± 2°F (23°C ± 1°C) with relative humidity < 75%
Voltage measurement (Autoranging)
Range
Accuracy
15-370V
±(0.5% + 2 digit)
310-635V
±(0.5% + 2 digit)
Voltage Anomalies Detection (Manual Selection of Range)
Voltage
Range
Accuracy
15-370V
±(0.5% + 2 digit)
30-635V
±(0.5% + 2 digit)
Current measurement (DM-II Plus only)
Range
Accuracy
Resolution
0.005-0.26V
±(0.5%+2digit)
0.0001V
Current measurement (Using DM-CT-HTA)
Range
Accuracy
Resolution
5 to 1000 A
±(1.5% of range)
0.1 A
Minimal Current measurable is equal to 1.5% of Clamp Full Scale
Resolution
0.2V
0.4V
Input impedance
300kW (phase-neutral)
600kW (phase-phase)
Resolution
0.2V
0.4V
Input impedance
100kW 5V
Input impedance
300kW (phase-neutral)
600kW (phase-phase)
Protection against overloads
0.26-1V 0.0004V
Protection against overloads
600 V
Amprobe® Test Tools
www.Amprobe.com
DM-II Plus Power Quality Recorder
Specifications, cont.
Current measurement (Using AM-FLEX 33)
Range
Accuracy
Resolution
15 to 3000 A
±(1.5% of range)
0.1 A
Minimal Current measurable is equal to 1.5% of Clamp Full Scale
Power measurement (cos : 0.5c[positive] – 0.5i[negative])
Value
Ranges
Active power
0 – 999.9W
1kW – 999.9kW
1MW – 999.9MW
Reactive power
0 – 999.9VAR
1kVAR – 999.9kVAR
1MVAR – 999.9MVAR
Apparent power
0 – 999.9VA
1kVA – 999.9kVA
1MVA – 999.9MVA
Active energy
0 – 999.9Wh
1kWh – 999.9kWh
1MWh – 999.9MWh
Reactive energy
0 – 999.9VARh
1kVARh – 999.9kVARh
1MVARh – 999.9MVARh
Cos measurement
Cos
Resolution
0 to 0.20
0.01
0.21 to 0.50
0.01
0.51 to 0.80
0.01
Measurement of Harmonics
Voltage
Range
Accuracy
DC – 25h
±(5.0% + 2 digit)
26h – 33h
±(10.0% + 2 digit)
34h – 49h
±(15.0% + 2 digit)
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
DC – 25h
±(5.0% + 2 digit)
26h – 33h
±(10.0% + 2 digit)
34h – 49h
±(15.0% + 2 digit)
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
47 to 53
0.1Hz
Instrument set to 60Hz
Range
Resolution
57 to 63.6
0.1Hz
Protection against overloads
600 V
Data Sheet
Accuracy
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
±(1.5% + 2 digit)
Resolution
0.1W
0.1kW
0.1MW
0.1VAR
0.1kVAR
0.1MVAR
0.1VA
0.1kVA
0.1MVA
0.1Wh
0.1kWh
0.1MWh
0.1VARh
0.1kVARh
0.1MVARh
Accuracy (expressed in degrees)
0.6
0.7
1
Resolution
0.1V
0.1V
0.1V
Resolution
0.1A
0.1A
0.1A
Accuracy
±(1.0% + 1 digit)
Accuracy
±(1.0% + 1 digit)
www.Amprobe.com
DM-II Plus Power Quality Recorder
Included Accessories
DMT-EXTPS
DM-CT-HT
KITENERGY3
Download Suite 2.2
C232NG1
Optional Accessories
AM-FLEX33
DM-CT-100
External power supply 12VDC
(code 1 pcs) 3 clamp meters 1000A/1V
4 cables and alligators for
voltage measurement
1 Amprobe Custom Software CD
Serial Cable
Data Sheet
Flexible current transducer, 3000 A
Current transducer, 100A
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
Amprobe® Test Tools
www.Amprobe.com
www.Amprobe.com
