Hioki 3166 - Page 317

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18.1 Product Specifications
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8.1.2 Basic Specifications
■ Conditions for guaranteed accuracy
Conditions for guaranteed
accuracy
Warmup time of at least 30 minutes, sine wave input, power
factor = 1, PLL synchronization
* If using a fixed clock, accuracy is not guaranteed when the
input frequency and the fixed clock frequency do not agree.
Temperature and humidity rang
e
23℃±3℃ (73 F±5 F), 80% RH or less
(The specifications indicated here are defined for these
temperature and humidity ranges except where noted
otherwise.)
Basic frequency ranges
45 Hz to 66 Hz, and 360 Hz to 440 Hz
■ Measurement items
Measurement items
Voltage, current, active power, reactive power, apparent power,
power integration, power factor, and frequency
measured values are processed using the calculation formulas
shown in Tables 2 and 3.
■ Display
Display range
0.4% to 130% of range (values of 0.4% or less are suppressed to
zero.)
Effective measurement range
10% to 110% of range (only up to 100% for the 600 V range,
2.5% or more for the 20 A range, however)
Display update rate
Approximately once per second (except during FD or RS-232C
operations)
■
Individual measurement items
■ Voltage and current measurement
Measurement ranges
150.00 V/300.00 V/600.00 V/auto range
Current
20.000 A/50.000 A/100.00 A/200.00 A/500.00 A/auto range
Accuracy is guaranteed in the 20A-100A range for the 9298
sensor, and in all ranges for the 9291 sensor.
Measurement method
True effective value
Measurement accuracy
Voltage: ±0.1% rdg.±0.2%f.s.
Current: ±0.1% rdg.±0.2%f.s.+ clamp on sensor specifications
Crest factor
Voltage: 2 or less (with full scale input; 1.41 or less for the 600
V range, however)
Current: 3 or less (with full scale input; 2.84 or less for the 500
A range, however)