AEMC PowerPad 8436 User Manual page 90

(1) Stated uncertainties on active power and energy measurements are maxima for |cos Φ| = 1 and typical for other phase differences.
(2) Stated uncertainties on reactive power and energy measurements are maxima for |sin Φ| = 1 and typical for other phase shifts.
(3) With MN193 clamp (5 A) or 5 A adapter or Essailec
®
(4) With AmpFlex or MiniFlex
(5) Resolution depends on the current sensor used and on the value to be displayed.
(6) Energy is equivalent to more than 114 years of the associated maximum power (unity ratios).
(7) n max is the highest order for which the harmonic ratio is non-zero.
(8) With SL261 clamp (100 mV/A).
(9) With J93 clamp, for a 2-wire single-phase connection (phase-to-ground voltage).
(10) Energy corresponds to more than 190 years at maximum power Pdc (unit ratios).
Quantities associated with power
Measurement
Phase differences of fundamentals
cos Φ (DPF)
tan Φ
Voltage unbalance (UNB)
Current unbalance (UNB)
(1) |tan Φ| = 32,767 corresponds to Φ = ±88.25° + k × 180° (k being a natural number)
®
adapter.
®
for a 2-wire single-phase connection (phase-to-ground voltage).
Measurement range
Minimum
-179°
-1
(1)
-32.77
0%
0%
Display resolution
Maximum
180°
1 0.001
0.001
tan Φ < 10
(1)
32.77
0.01
tan Φ ≥ 10
100% 0.1%
100% 0.1%
90
Maximum intrinsic error
1°
±1° for Φ
±5 ct for cos Φ
±1° for Φ
UNB ≤ 10%
UNB > 10%
±2°
±3 ct
±10 ct
±10 ct