Power Quality Analyzer PowerPad
®
IV Model 8345
99
Measurement
Measurement Range
without ratio
(with unity ratio)
Display
Resolution
(11)
(unity ratio)
Max Intrinsic
Error
Min
Max
Reactive energy
(E
Qf
)
(2)
and
non-active
energy (E
N
)
(2)
Without
AmpFlex
®
and
MiniFlex
®
1 var·h
9,999,999
Mvar·h
(6)
up to
7 digits
(5)
±(1 % + 10 pt)
|sin φ| ≥ 0.5
and THD ≤ 50 %
±(1.5 % + 10 pt)
0.2 ≤ |sin φ| < 0.5
and THD ≤ 50 %
With
AmpFlex
®
and
MiniFlex
®
1 var·h
9,999,999
Mvar·h
(6)
up to
7 digits
(5)
±(1.5 % + 10 pt)
|sin φ| ≥ 0.5
and THD ≤ 50 %
±(1.5 % + 20 pt)
0.2 ≤ |sin φ| < 0.5
and THD ≤ 50 %
Distorting energy (E
D
)
1 var·h
9,999,999
Mvar·h
(6)
up to
7 digits
(5)
±(2 % S +(0.5 %
n
max
+ 50 pt)
THD
A
≤ 20 %f
and |sin φ| ≥ 0.2
±(2 % S +(0.7 %
n
max
+ 10 pt)
THD
A
≤ 20 %f
and |sin φ| ≥ 0.2
Apparent energy (E
S
)
1 V·A·h
9,999,999
MV·A·h
(6)
up to
7 digits
(5)
±(1 % + 10 pt)
DC energy (E
PDC
)
1 W·h
9,999,999
MW·h
(10)
up to
7 digits
(5)
±(1 % + 10 pt)
1.
The uncertainties on the active power and energy measurements are greatest at |cos φ| = 1
and typical for other phase differences.
2.
The uncertainties on the reactive power and energy measurements are greatest at |sin φ| =
1 and typical for other phase differences.
3. For the MN193 clamps (5 A) or adapters (5 A)
4. For the AmpFlex
®
and MiniFlex
®
and for a single-phase, 2-wire connection
5. The resolution depends on the current sensor and displayed values.
6. The energy corresponds to more than 114 years of the associated maximum power with
unity ratios.
7. When the harmonic level is not zero, the highest order is n
max.
THD
A
is the THD of the
current.
8. For 100 mV/A and SL261 clamp.
9. The energy corresponds to more than 190 years of the maximum power P
DC
at unit ratios.
10. The display resolution is determined by the apparent power (S) or apparent energy (E
S
).