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3.1 Reference Conditions
Parameter
Ambient temperature
Humidity (relative humidity)
Atmospheric pressure
Phase-to-neutral voltage
Standard current circuit input voltage
(except AmpFlex
®
Rogowski current circuit input voltage
(Only AmpFlex
& MiniFlex
®
Frequency of electrical network
Phase shift
Harmonics
Voltage unbalance
Voltage ratio
Current ratio
Power supply
Electric field
Magnetic field
NOTE: The symbol "U" will be used throughout this manual and in the
instrument to refer to phase-to-phase voltage measurement.
The symbol "V" will be used for phase-to-neutral voltage measurement.
*The values of A
nom
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18
CHAPTER 3
SPECIFICATIONS
& MiniFlex
)
®
)
®
are provided in the next table.
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www.
Reference Conditions
73°F ± 5°F (23°C ± 3°C)
[45%; 75%]
[860 hPa; 1060 hPa]
[50Vrms; 1000Vrms] without DC (< 0.5%)
[30mVrms; 1Vrms] without DC (< 0.5%)
⇔ 1Vrms
*A
nom
÷ 100 ó 30mVrms
3 × *A
nom
[11.73 mVrms; 117.3mVrms] without DC (< 0.5%)
3000 Arms ⇔ 117.3mVrms to 50Hz
300 Arms ⇔ 11.73mVrms to 50Hz
50/60Hz ± 0.1Hz
0° (active power and energy)
90° (reactive power and energy)
< 0.1%
< 10%
1 (unity)
1 (unity)
Battery only
< 1 V.m-1
< 40 A.m-1
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1.877.766.5412
.ca
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