Model DM-4
Simultaneous 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 a 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 51th |
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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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