1750
Operators Manual
52
Power Factor
Measurement Range .......................................... -1.000 (leading) to 0.000 to +1.000 (lagging)
Measurement Accuracy ...................................... ± 1 digit from the calculation of each measured value (± 3 digits for
total)
Displacement Power Factor
Measurement Method......................................... Calculated from the phase difference between voltage fundamental
and current fundamental
Measurement Range .......................................... -1.000 (leading) to 0.000 to + 1.000 (lagging)
Measurement Accuracy ...................................... ± 0.5 % reading ± 2 % full scale ± 1 digit
Voltage Unbalance and Phase Sequence
Measurement Method......................................... Positive sequence voltage divided by negative sequence voltage, per
IEC 61000-4-30
Harmonic Voltage and Current
Analysis Window................................................. rectangular
Analysis Order .................................................... 1st to 50th order
Measurement Accuracy ...................................... Voltage / Current: 1st to 20th orders: ± 0.5 % reading ± 0.2 % full scale
21st to 50th orders: ± 1 % reading ± 0.3 % full scale (current sensor
accuracy must be included for current and power)
Measurement Method......................................... IEC 61000-4-7:2002
Inter-harmonic Voltage and Current (Intermediate Harmonics)
Analysis Window................................................. rectangular
Analysis Orders .................................................. 0.5 to 49.5th order
Measurement Method......................................... IEC 61000-4-7:2002
Voltage flicker
Measurement Method......................................... as per IEC 61000-4-15:2003: 10 min (Pst), 2 h (Plt)
External Interface Specifications
LAN Interface
Connector ........................................................... RJ-45
Speed and Type ................................................. 10/100 Base-T, auto MDIX
Communications Protocol................................... TCP/IP over Ethernet
Wireless Controller Interface
Connection.......................................................... wireless (2.4 GHz radio)
Speed.................................................................. up to 700 kbit/second
Communications Protocol................................... Bluetooth SPP
Environmental and Safety Specifications
Operating Environment....................................... indoors or in covered area outdoors, up to 2000 m altitude
Storage Temperature and Humidity.................... -20 °C to 50 °C, 80 % rh max, non-condensing
Operating Temperature and Humidity ................ 0 °C to 40 °C, 80 % rh max, non-condensing
Maximum Rated Working Voltage
Voltage Terminals............................................... 1100 V rms
Voltage Durability................................................ 5550 V rms ac for 1 minute, between voltage input terminals, voltage
input terminals and current probes, and voltage input terminals and
case (50/60 Hz, 1 mA sense current)
Enclosure Protection........................................... IP30 (per EN 60529)
Standards Conformance
EMC.................................................................... IEC 61326-1:2006 Class A
IEC 61000-3-2:2005, 3
rd
Edition
IEC 61000-3-3:2005, 1.2 Edition
AS/NZS 4268:2008 (BT module only)
ETSI EN300328 (V1.7.1:2006)
Safety.................................................................. IEC 61010-1:2001, 2
nd
Edition
Voltage input unit: Contamination Level 2
Overvoltage Category 1000 V CAT III, 600 V CAT IV (anticipated
overvoltage: 8000 V)
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