Metrix PX 110, Руководство пользователя, Страница: 11 / 18

28 Wattmeters
3.3.1 Specific reference conditions
DC
: AC component 0.1% of the DC signal
AC
: Sinusoidal signal (THD < 0.1%)
3.3.2 Characteristics in normal and SMOOTH modes
Display range 2 A 10 A (1)
Measuring range 10 mA...1.999 A 2.00...9.99 A
Accuracy for AC 0.7% of reading ±5 cts +1 mA 0.7% of reading ±5 cts
Accuracy for DC 1.5% of reading ±5 cts +1 mA 1.5% of reading ±5 cts
Resolution 1 mA 10 mA
Detection threshold 5 mA 50 mA
Display stability 5 cts in normal mode 2 cts in SMOOTH mode
5 cts in normal mode 2 cts in SMOOTH mode
Response time 500 ms in normal mode
of the digital display 3 s in SMOOTH mode
(1) Above 10 A +3%, the display indicates “ OL ” .
3.3.3 Characteristics in INRUSH mode
Display range A
Measuring range 5 A...65 A (40 ms) (1)
Max. current for acceleration 1s 30 A
Max. current for acceleration 8s 24 A
Max. current for acceleration 20s 20 A
Accuracy 10% of reading ±2 counts
Resolution 100 mA
Measurement method RMS value over half-period
(1) Above 65 A, the display indicates “ OL ” .
3.4 Power measurements
L1
N
W
L1
N
U U+
I I+
Alimentation Charge
Fig 4.4.1 Single-phase connection diagram
Chapter III
Power supply
Load
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