Amprobe DM-II-PLUS Power-Quality-Recorder User Manual
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frequency Measurement
Instrument set to 50Hz
Range
Resolution
Accuracy
47 to 53
0.1Hz
±(1.0% + 1digit)
Instrument set to 60Hz
Range
Resolution
Accuracy
57 to 63.6
0.1Hz
±(1.0% + 1digit)
temperature drift
Temperature drift: 0.1 x accuracy/°C (32°F)
Safety
The instrument complies to the standards: EN 61010-1 :2001
Insulation: Class II
Pollution: 2
Over-voltage category: CAT III 370V~ (Phase-Earth)
CAT III 600V~ (Phase-Phase)
Clamps: IEC 61010-2-032 Ed. 2.0
Phase Sequence Detection: EN 61557-7:2007
Mechanical features
Dimensions: 444.5(L) x 273.05(W) x 190.5(H) mm (17.50 (L) x 10.75 (W) x 7.50 (H))
Weight: 11.5 Lb (5.2kg)
Internal power supply: 6 batteries 1.5V D size (Alkaline) NEDA 13A, IEC L20R.
Do not use rechargeable batteries.
Battery Life: 22 hours
External power supply:
Input:
Voltage(V): 100–240V; Phase: 1; Frequency(Hz): 50–60Hz; Current(A): 0.25A; Power(VA):
12–17 VA
DC Output:
Voltage(V): 12V; Current(A): 0.42A
Use only Amprobe power supply Adapter code DMTEXTPS. This power supply will not charge
the internal supply batteries.
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 in.)
No. of samples per period: 128
Clamp:
Opening: 53 mm (2.15 in.)
Maximum diameter of the cable: 50 mm (2.00 in.)