1750
Operators Manual
50
Specifications for the System: Recorder and Power Analyze
Software
General Specifications
Power Quality Measurement Standards
Conformance..................................................... IEC 61000-2-4:2002 Class 1, IEC 61000-4-30, IEEE519, IEEE1159,
IEEE1459, IEC 61557-12:2008, and EN50160
Clock/Calendar.................................................. Leap years, 24-hour clock
Real-time Clock Accuracy................................ Not more than ± 1 s/day
Internal Memory Capacity for Data ................. At least 2 GB
Maximum Recording Period ............................ At least 31 days
Measurement Time Control ............................. Automatic
Maximum Number of Events ........................... Limited only by the size of the internal memory.
Power Requirements ........................................ 100 to 240 V rms ± 10 %, 47-63 Hz, 40 W
Operating Time During Interruptions
(internal UPS operation) ..................................... 5 minutes per interruption, 60 minutes total operating time without
recharging
Dimensions ....................................................... 215 x 310 x 35 mm (8.5 x 12.2 x 3.5 inch)
Mass (Weight) ................................................... 6.3 kg (14 lbs)
Input Specifications
Measurement Types ......................................... One Phase Plus Neutral, One Phase IT No Neutral, One Phase Split
Phase, Three Phase Wye, Three Phase Delta, Three Phase IT, Three
Phase High Leg, Three Phase Open Leg, 2 Element Delta, 2 ½
Element Wye
Input Channels .................................................. Voltage: 5 channels, AC/DC Current: 5 channels
Voltage Channels.............................................. Input resistance: 2 MΩ
Input capacitance: <20 pF
Current Channels.............................................. Self-identifying probes
Types available: current clamps, Flexi-CTs
Measuring Method ............................................ Simultaneous digital sampling of voltage and current. Digital PLL
synchronized sampling, internal frequency reference used during
voltage drops.
Synchronization and Sampling
PLL-Synchronization Source........................... The PLL synchronizes to the A-N/L1-N voltage for wye power types,
and to the A-B/L1-L2 voltage for delta power types. All listed power
types can be characterized as either wye or delta.
PLL Lock Range................................................ 42.5 to 69 Hz
Sampling Frequency ........................................ Voltage and current: 256 samples/cycle
Inter-harmonics per IEC61000-4-7: 2560 points / 10 cycles (50 Hz),
3072 points/12 cycles (60 Hz)
Transient Voltage: 5 MHz
A/D Resolution .................................................. Voltage and current: 24 bits
Transient voltage: 14 bits
Voltage and Current Measurements
Voltage Measurement Range........................... AC voltage: 1000 V rms ± 10 % Overrange
DC voltage: ± 1000 V + 10 % Overrange
Voltage Crest Factor......................................... 3 or less
Voltage Input Impedance ................................. 2 MΩ
Current Measurement Range........................... Depends on current probe used
Current Crest Factor......................................... 4 or less
Current Input Characteristics .......................... 2 V rms = full scale, 1 MΩ Input Impedance for ferro CTs, low
impedance for Flexi-CTs
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