Microchip Technology ARD00342 User Manual
MCP3901 and PIC18F65J90 Energy Meter Reference Design
DS51968A-page 12
© 2012 Microchip Technology Inc.
1.2
WHAT THE MCP3901 AND PIC18F65J90 ENERGY METER REFERENCE
DESIGN KIT INCLUDES
DESIGN KIT INCLUDES
This MCP3901 and PIC18F65J90 Energy Meter Reference Design kit includes:
• MCP3901 and PIC18F65J90 Energy Meter Reference Design User’s Guide
• Important Information Sheet
1.3
GETTING STARTED
To describe how to use the MCP3901 and PIC18F65J90 Energy Meter Reference
Design, the following example is given using a two-wire 1-phase, 220 VAC line voltage
and connections using energy meter calibrator equipment, or other programmable load
source. The meter design uses a 5A load for calibration current, and a maximum
current (I
Design, the following example is given using a two-wire 1-phase, 220 VAC line voltage
and connections using energy meter calibrator equipment, or other programmable load
source. The meter design uses a 5A load for calibration current, and a maximum
current (I
MAX
) of 60A.
To test a calibrated meter, the following connections apply for a two-wire connection.
1.3.1
Step 1: Wiring Connections
Figure 1-2 identifies the line and load connections of the MCP3901 and PIC18F65J90
Energy Meter Reference Design.
Energy Meter Reference Design.
FIGURE 1-2:
Example Connections using a 2-Wire System.
1.3.2
Step 2: Turn On Line/Load Power to the Meter (Power the Meter)
The meter will turn on when the line connection has 220V connected. The LCD display
will show the total energy accumulated.
will show the total energy accumulated.
Line
Neutral
MAIN
LOAD
Line
Neutral
1
2
3
4