The PMC-53A-E Ethernet Multifunction Meter is CET’s latest offer for the digital power/energy metering market. Housed in a standard DIN form factor measuring 96x96x88mm, it is perfectly suited for industrial, commercial and utility applications requiring direct Ethernet connectivity. The PMC-53A-E features quality construction, multifunction measurements and a large, backlit, Dot-Matrix LCD that is easy to navigate and user friendly. Compliance with the IEC 62053-22 Class 0.5S and ANSI C12.20 Class 0.2 Standards, it is a cost-effective replacement for analog instrumentation and is capable of displaying 4 measurements at once. It also optionally provides an I4 input for Neutral Current Measurement, one 0/4-20mA Analog Input for measuring external transducer signal as well as an Ir Input for Residual Current Measurement. With a standard 100BaseT Ethernet Port and a RS-485 port supporting multiple protocols, the PMC-53A-E can be easily integrated into Energy Management Systems as well as Building and Utility Automation Systems.

Typical Applications

• Industrial, Commercial and Utility Substation Metering
• Building, Factory and Process Automation
• Sub-metering and Cost Allocation
• Retrofit applications with optional Class 0.5 Split-Core CTs

Features Summary

Basic Measurements

• ULN, ULL per phase and Average with Neutral-to-Ground Voltage (Ung)
• Current per phase and Average with calculated Neutral
• P, Q, S, PF per phase and Total
• kWh, kvarh Import / Export / Net / Total and kVAh Total
• Frequency
• Device Operating Time (Running Hours)
• Optional Neutral Current (I4) and Residual Current (Ir) Measurement

Advanced Measurements

• 1-cycle Real-time U & I Waveform Display @ 1s update
• U and I THD, TOHD, TEHD and Harmonics analysis up to 31st
• Current TDD, TDD Odd, TDD Even, K-Factor and Crest Factor
• U and I Unbalance and Phase Angle
• Displacement PF
• Fundamental U, I and P per phase
• Total Fundamental P & Total Harmonic P
• U and I Symmetrical Components
• %kvarh Imp/kWh Imp, %kvarh Exp/kWh Imp for Last Day & Last 30 Days
• 12 Monthly Logs of kWh, kvarh Imp/Exp/Tot/Net, kVAh and kvarh Q1 -Q4
• Interval Energy for kWh/kvarh Imp/Exp and kVAh
• Present, Predicted and Maximum Demands for ULN, ULL, I per phase and Average as well as P/Q/S Total with Timestamp for This Month  &  Last Month (or Since Last Reset & Before Last Reset)
• Two TOU schedules, each providing
• -  12 Seasons
• -  20 Daily Profiles, each with 12 Periods in 15-minute interval
• -  90 Holidays or Alternate Days
• -  8 Tariffs, each providing the following information
• Total and 3-Phase kWh/kvarh Imp/Exp, kVAh
• P/Q /S Max. Demands

Ease of use

• Large, backlit, Dot-Matrix LCD display with wide viewing angle
• Intuitive user interface
• LED indicators for Energy Pulsing and Communication activities
• Password protected setup via Front Panel, Web Server or PMC Setup
• Easy installation with mounting clips, no tools required

Setpoints

• 9 user programmable setpoints with extensive monitoring parameters including Voltage, Current, Power , PF, Current and Power  Demand, Unbalance and THD, etc.
• Configurable thresholds, time delays, DO and Alarm Email triggers

SOE Logs

• 100 events time-stamped to ±1ms resolution
• Setup changes, Setpoint, DI status changes and DO operations

Max./Min. Log

• Max./Min.  Log with Timestamp  for  Real-time measurements such as Voltage, Current, In, I4, Ir, Frequency,  P ,  Q ,  S, PF, Unbalance, K-Factor, Crest Factor and THD.
• Configurable for This Month/Last Month or Before/Since Last Reset

Freeze Logs

• 60 Daily Freeze Logs for kWh/kvarh/kVAh Total and P/Q/S Max. Demands
• 36  Monthly Freeze Logs for  kWh/kvarh/kVAh Total and P/Q/S Max. Demands with Timestamp

Data Recorder (DR)

• 5  Data Recorders  of  16  parameters each  for  Real-time measurements, Harmonics, Energy, Demand, TOU, Pulse Counters, etc.
• Recording interval from 1 minute to 40 days
• Configurable capacity up to a max. of  1145  days (> 3 years)  at 15-minute interval for 1 Data Recorder with  16 parameters  for  HK  BEC2018 Compliant Recording

Diagnostics

• Frequency Out-of-Range, Loss of Voltage / Current
• P Direction per phase and Total, Possible incorrect CT Polarity
• Incorrect U & I Phase Sequence
• Disconnection of Residual Current Input

Communications

• One 100BaseT Ethernet Port with RJ45 connector
• One optically isolated RS485 port with baud rate from 1.2kbps to 38.4kbps
• Built-in Web Server for easy data viewing and setup configurations
• Protocol supported: Modbus TCP/RTU, BACnet MSTP, DNP 3.0, HTTP, SMTP, SNTP, TFTP and Ethernet Gateway

Real-Time Clock

• Battery-backed Real-time Clock with 6ppm accuracy (<0.5s per day)

System Integration

• Supported by CET’s PecStar® iEMS
• Easy integration into Building Automation Systems with BACnet  MSTP  or Modbus RTU and Utility Substation Automation with DNP 3.0
• The on-board password protected Web Server allows complete access to its data and supports the configuration for most of the Setup parameters via a standard web browser

Inputs and Outputs

Digital Inputs

• 4 channels, volt free dry contact, 24VDC internally wetted
• 1000Hz sampling for status monitoring with programmable debounce
• Pulse counting with programmable weight for each channel for collecting WAGES (Water, Air, Gas, Electricity, Steam) information
• Tariff switching based on DI status

Digital Outputs

• 2 Form A Mechanical Relays for alarming and general purpose control Pulse Outputs (Optional)
• 2 Form A Soild State Relays for kWh and kvarh pulsing

Analog Inputs (Optional)

• I4 Current Input for Neutral Current measurement
• Ir Input for Residual Current measurement (CT not included)
• 0/4-20mA DC Input with programmable zero and full scales