E-Mon E-PS-E-RTU-N - Manual (Page 138)

Appendix A Technical Specifications
138 PowerSmart+ Power Quality Meter
Wire size: up to 14 AWG (up to 1.5 mm2).
COM2 (Optional module)
Ethernet Port
Transformer-isolated 10/100BaseT Ethernet port
Supported protocols: MODBUS/TCP (Port 502), DNP3/TCP (Port 20000), IEC
60870-5-104
Number of simultaneous connections: 4 (2 MODBUS/TCP + 2 DNP3/TCP).
Connector type: RJ45 modular.
RS-232/422-485 Port
RS-232 or RS-422/485 optically isolated port
Isolation: 3000 VAC 1 min
Baud rate: up to 115.2 kbps.
Supported protocols: MODBUS RTU, DNP3, and IEC 60870-5-101
Connector type: removable, 5 pins for RS-422/485 and DB9 for RS-232.
Wire size: up to 14 AWG (up to 1.5 mm2).
A.9 Real-time Clock
Standard Meter Clock
Non-backed clock
Accuracy: typical error 1 minute per month @ 25°C
Typical clock retention time: 30 seconds
TOU Module Meter Clock
Battery-backed clock
Accuracy: typical error 5 seconds per month @ 25°C (±2.5ppm)
Typical clock retention time: 36 months
A.10 Display
3.5" LCD Monochrome Display, 240 x 128 dots resolution
Tri-color LED load bar graph (40-110%)
COM1 RX/TX activity LED
Diagnostics indication LED
kWh/kvarh Pulse LED (for E and EH models)
Keypad: 5 push buttons
A.11 Standards Compliance
Accuracy:
Complies IEC62053-22, class 0.5S
Meets ANSI C12.20 –1998, class 10, accuracy class 0.5
Electromagnetic Immunity:
Comply with IEC 61000-6-2:
IEC 61000-4-2 level 3: Electrostatic Discharge
IEC 61000-4-3 level 3: Radiated Electromagnetic RF Fields