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DM-4
Multifunction Recorder |
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The DM-4 addresses the
needs of the most demanding Power Quality professionals. The
device incorporates full set of measuring features crucial for
complete Power Quality analysis. An innovative Remote User
Interface (PDA) allows safe, easy and convenient operation of the
device remotely. The Remote User Interface (PDA) is also used for
data viewing, analysis and transfer. Independently, the DM-4 can
be used directly with the PC type of computer. Since the DM-4does
not have any control buttons on its enclosure, it is protected
against setup changes by unauthorized persons while the device is
recording.
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Features
- True RMS (TRMS).
- Extremely easy to setup and operate.
- Comes as a complete kit: carrying case, CTs, test leads, PC
software & download cable, Remote User Interface PDA) w/
protective hard case and interface cable are included with
product.
- Rugged Remote User Interface with memory for easy data
downloads in the field and increased safety.
- Works with single (two and three wire) and three phase
systems (Y and Delta).
- Detects and records voltage spikes 100 nS or slower.
- Detects and records voltage Sags and Surges.
- Built in scope displays waveforms.
- Records all parameters (single or three phase)
simultaneously.
- Manual and programmable recording start.
- Selectable fundamental frequency of 50 or 60 Hz.
- Special data compression system and user selectable rates
allow recording from several hours to several years.
- Download capabilities with PC (Windows compatible software)
or PDA (Palm OS).
- Line or battery powered.
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Specifications |
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Current
Transducer (Supplied) |
1000A std. CT,
2" internal diameter |
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CT Input
Accuracy |
±(2% of Rdg + 2 digits) |
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AC Voltage
(including Sags/Surges) |
20V to 1000V |
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AC Voltage
Accuracy |
±(3% of Rdg + 2 digits) |
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Voltage
Transients |
200 to 6000V
peak to peak >100nS (±10% of Rdg)
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Harmonics
(Voltage and Current) |
THD, DC and
individual up to 51st |
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±(5% of Rdg + 2 digits) @ DC to 25th
harmonics |
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Power |
Working (W),
Reactive (VAR), and Apparent (VA) |
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Power
Accuracy |
±(3% of Rdg + 2 digits) |
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Energy |
Working kWh),
Reactive (VARh), and Apparent (VAh) |
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Energy
Accuracy |
±(3% of Rdg + 2 digits) |
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Peak Demand |
KW, accuracy:
±(3% of Rdg + 2 digits) |
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Power Factor
(True and Displacement) |
0.00 to 1.00
±3% |
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Phase
Sequence |
1 - 2 - 3 |
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Selectable
Fundamental Frequencies |
50Hz, 60Hz |
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Available
Recording Time |
Several hours
to several years depending on set-up |
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General
Specification |
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Safety
Insulation |
Class 2,
Pollution 2 |
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Over-Voltage
Category |
CAT III 600V
(Phase to Phase) |
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CAT II 1000V
(Phase to Phase) |
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Dimensions |
225mm (L) x
104mm (W) x 54mm (D) |
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8.8" (L) x 4.1"
(W) x 2.1" (D) |
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Weight |
1.5kg (3.3lb) |
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Internal
Power Supply |
8 pieces 1.5V
type 'AA' |
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Battery Life |
3-hours |
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External
Power Supply |
Amprobe
DM4EXTPS |
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Sampling
Speed |
83.33
µS at 60Hz |
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Number of
Samples per Period |
128 |
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Clamp
Opening |
53mm (2.15"),
maximum diameter of cable 50mm (2.00") |
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Reference
Temperature |
23°C
±1°C, (73°F ±2°F) |
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Operating
Temperature |
0°C
to 50°C (32°F to 122°F) R.H. <70% |
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Storage
Temperature |
-10°C
to 60°C (14°F to 140°F) R.H. <80% |
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Included Accessories |
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CT (1000A)(#DM-CT-HTA),
Remote user interface protective case (DM-4CASE), Remote user interface
(PDA) with connection cables), Soft carrying case (HW1254A), External
Power Supply (DMT-EXTPS), Test Leads and Alligator clips (set of 4),
RS-232 Computer Cable, PC Windows Software, Palm OS Software (both down
loadable), and Instruction Manual. |
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