Instructions

GPM-8310 User Manual
232
External current sensor input (/EX1) 1 mV/°C
External current sensor input (/EX2) 50 µV/°C
Accuracy when the crest
factor is set to 6 or 6A
accuracy obtained by doubling the measurement
range error for the accuracy when the crest factor is
set to 3
Accuracy changes caused
by data update interval
When the data update interval is 100 ms, and Auto,
add 0.05% of reading to the 0.1 Hz to 1 kHz
accuracy.
Active Power Accuracy
Item
Specifications
Requirements
same as the conditions for voltage and current.
Power factor
1
Accuracy
DC
(0.1 % of reading + 0.2 % of
range)
0.1Hz ≤ f ＜ 45 Hz
± (0.3 % of reading + 0.2 % of
range)
45 Hz ≤ f ≤ 66 Hz
± (0.1 % of reading + 0.05 %
of range)
66 Hz ＜ f ≤ 1kHz
± (0.2 % of reading + 0.2 % of
range)
1 kHz ＜ f ≤ 10 kHz
± (0.1 % of reading + 0.3 % of
range) ± [{0.067x(f-1)}% of
reading]
10 kHz ＜ f ≤ 100
kHz
± (0.5 % of reading + 0.5 % of
range) ± [{0.09x(f-10)}% of
reading]
Influence of power factor
when power factor (λ) = 0 (S: apparent power)
± 0.1 % of S for 45 Hz ≤ f ≤ 66 Hz
± {(0.1 + 0.15 × f) % of S } for up to 100 kHz as
reference data
•f is frequency of input signal in kHz
when 0 < λ < 1 (Φ: phase angle of the Voltage and
current)
(power reading ) × [(power reading error%) + (power
range %) × (power range / indicated apparent power
value) + {tanΦ × (influence when λ=o)%}]
When the line filter is
turned ON
45 ~ 66 Hz
Add 0.3 % of reading
< 45 Hz
Add 1 % of reading
Temperature coefficient
same as the temperature coefficient for voltage and
current
Accuracy when the crest
factor is set to 6 or 6A
accuracy obtained by doubling the measurement
range error for the accuracy when the crest factor is
set to 3