71M6533 Maxim, 71M6533 Datasheet - Page 118

• Manufacturer Part Number: 71M6533
• Description: The Teridian™ 71M6533 and 71M6534 are third-generation polyphase metering systems-on-chips (SoCs) with a 10MHz 8051-compatible MPU core, low-power RTC, flash, and LCD driver
• Manufacturer: Maxim

6.6 Typical Performance Data
6.6.1 Accuracy over Current
Figure 49
over current at various load angles.
118
Figure 50: Typical Wh Accuracy (0.02 A - 200 A, 240 V, Room Temperature), Various Load Angles
Figure 49: Wh Accuracy (0.1 A - 200 A, 240 V, Room Temperature) at Various Frequencies
-0.2
-0.4
-0.6
-0.8
0.8
0.6
0.4
0.2
-1
-0.1
-0.2
-0.3
-0.4
-0.5
1
0
shows meter accuracy over current for various line frequencies.
0.5
0.4
0.3
0.2
0.1
0.01
0
0.1
6533/34 Wh Performance, Equation 5, 45 Hz, 55 Hz, 65 Hz - 240 V - 0° Phase
71M6533/6534 Wh Accuracy at Various Phase Angles
0.1
1
(Differential Mode, CTs)
(Differential Mode, CTs)
Equation 5, 240 V
Current (A rms)
1
I [A]
Angle
10
10
0°
100
Figure 50
60°
45 Hz
55 Hz
65 Hz
100
shows meter accuracy
300°
1000
Rev 2