CET Electric Technology
1
Chapter 1
Introduction
This manual explains how to use the PMC-230 Single-Phase Multifunction Meter.
This chapter provides an overview of the PMC-230 meter and summarizes many of its key features.
1.1
Overview
The PMC-230 Single-Phase Multifunction Meter is CET’s latest offer for the low voltage energy metering market
featuring DIN rail mount, compact construction, 63A direct input with an internal UC3 Disconnect Relay
compliant with Australia National Electricity Rules (NER) schedule 7.5 for the ability to disconnect/re-connect
from the supply. The PMC-230 also complies with the IEC 62053-21 Class 1 kWh Accuracy Standard and has
received the certificate of approval from the National Measurement Institute (NMI) of Australia for compliance
with the M6-1 Electricity Meters, Part 1: Metrological and Technical Requirements. The PMC-230 provides 4MB
Log Memory for Data Recording, 3xDI for Status Monitoring or Pulse Counting, 1xLED Pulse Indicator and 1xSS
Pulse Output for Energy Pulsing. Further, the standard RS-485 port supporting Modbus RTU protocol with
password protection allows the PMC-230 to become a vital component of an intelligent, multifunction
monitoring solution for any Energy Management Systems.
Following is a list of typical applications for the PMC-230:
▪
DIN rail mount energy metering
▪
Industrial, Commercial and Utility Substation Metering
▪
Building, Factory and Process Automation
▪
Sub-metering and Cost Allocation
▪
NMI compliant Energy Management
Contact CET Technical Support at
should you require further assistance with your
application.
1.2
Features
Ease of Use
▪
Easy to read LCD for both data viewing and configuration
▪
Two LED indicators for Energy Pulsing and Disconnect Relay status
▪
Password-protected setup via Front Panel or free PMC Setup software
▪
Easy installation with DIN rail mounting, no tools required
Basic Measurements
▪
IEC 62053-21 Class 1 and NMI M6-1 Certified by UL
▪
Direct
Input
up
to 63A without
external
CT
▪
U, I, P, Q, S, PF, Frequency and Operating Time
▪
kWh and kvarh Imp./Exp and kVAh
▪
Two TOU schedules, each providing
•
4 Seasons
•
12 Daily Profiles, each with 8 Periods in 15-minute interval
•
30 Holidays or Alternate Days
•
4 Tariffs, each providing kWh/kvarh Imp./Exp., kVAh
▪
Demands and Max. Demands for U, I, P/Q/S with Timestamp for This Month & Last Month (or Since Last
Reset & Before Last Reset)
▪
U and I THD
▪
DI Counters, Front Panel & Communication Programming Counters
Disconnect Relay (Internal)
▪
UC3 compliant Disconnect Relay that can be activated locally from the Front Panel or remotely via
communications
Energy Pulse Outputs
▪
1 LED Energy Pulse Output on the Front Panel
▪
1 Solid State Relay Energy Pulse Output