The PMC-630 Series Advanced Multifunction Meter is CET’s latest offer for the low, medium and high voltage power/energy metering market. Housed in an industry-standard DIN form factor measuring 96mmx96mmx125mm, the PMC-630 is perfectly suited for utility, industrial or commercial applications. The meter features quality construction with metal enclosure, multifunction and high-accuracy measurements, transient detection and waveform recording capabilities, extensive I/O and communication configurations, and an easy-to-read, back-lit LCD display, capable of displaying 3-phase measurements at once. The meter comes standard with six Digital Inputs for status monitoring and two Digital Outputs for control or alarming applications. Further, the PMC-630 optionally provides two additional Digital Outputs, an I residual Input or an Analog Input, and an Analog Output. The standard SOE Log records all setup changes, DI and Setpoint status changes, and DO operations in 1ms resolution. With the standard RS485 port and Modbus protocol support, the PMC-630 becomes a vital component of an intelligent, multifunction monitoring solution for any Power and Energy Management systems.
Typical Applications
* Analog meter replacement
* Low, medium and high voltage applications
* Industrial and commercial metering
* Substation, building and factory automation
* I residual monitoring
* Extensive logging capability with 2MB on-board memory
* Power quality monitoring and waveform recording
Features Summary
Ease of use
* Large, backlit, easy to read LCD display with wide viewing angle
* Password-protected setup via front panel or free PMC Setup software
* Easy installation with mounting slide bar , no tools required
Basic Measurements
* 3-phase voltage, current , I4, frequency and power measurements
* Bi-directional energy measurements
* TOU metering that can accommodate 4 tariff rates, 6 seasons and 1 daily profile with 10 periods
Power Quality
* Voltage and Current Unbalance
* THD, TOHD, TEHD and K-Factor
* Individual harmonics up to 31st on-board
* WF Capture at 128 samples/cycle for harmonics analysis up to 63rd
* WF Recording of all Voltage and Current inputs at 16 samples/cycle for 12 cycles with 3 pre-fault cycles
* I residual ALARM and TRIP protection functions
Sliding Window Demands
* 3-phase voltage, current, power, PF , Frequency , V and I Unbalance,and THD
* Max/Min values per demand interval
* Peak Demands for This Month and Last Month
SOE Log
* 64 events time-stamped to ±1ms resolution
* Setup changes, Setpoint events and I/O operations
Max/Min Log
* Voltage, Current, Frequency, kW , kvar, kVA, Power Factor, Unbalance, VTHD and ITHD of This Month and Last Month
Data Recorders
* 16 Data Recorder Logs of 16 parameters each for real-time measurements, harmonics, interval energy, demand, ….etc
* Recording interval from 1s to 40 days
* Configurable depths and recording offsets
* 2MB log memory
Setpoints
* 9 user programmable setpoints with extensive list of monitoring parameters
* Configurable thresholds and time delays
* WF Recording, Data Recorder and DO trigger
* Transient Voltage and Current setpoints
Digital Inputs
* 6 channels, volts free dry contact, 24VDC internally wetted
* External status monitoring with programmable debounce
* Pulse counting with programmable weight for each channel for collecting WAGES information
* 1000Hz sampling
Digital Outputs
* Up to a maximum of 4 channels
* Form A Mechanical relays – 2 or 4 channels
· DO1 is reserved for I residual ALARM if present AND enabled
· DO2 is reserved for I residual TRIP if present AND enabled
· DO3 and DO4 are available for general purpose control
* Form A SS relays – 2 optional channels for energy pulsing applications
· DO3 is reserved for kWh pulsing
· DO4 is reserved for kvarh pulsing
I residual Input (Optional)
* Requires an optional, external Zero Sequence CT (1A nominal)
* Two levels of alarm – ALARM and TRIP. Each alarm level:
· Can be enabled individually
· Has its own programmable threshold and time delay
· Log an SOE event AND trigger a dedicated DO when activated
Analog Input (Optional)
* 0-20 / 4-20mA DC input
* Can be used to measure external transducer signal
* Programmable zero and full scales
Analog Output (Optional)
* 0-20 / 4-20mA DC output
* Can be “keyed” to any measured quantity
* Programmable zero and full scales
Real-time clock
* 6ppm battery-backed real-time clock (<0.5s per day)
Communications
* Port 1 (standard) and Port 2 (optional)
- Optically isolated RS485 port
- Baud rate from 1200 to 19200bps
* Modbus RTU protocol
Profibus (optional)
* Auto baud from 9600 bps to 12 Mbps
* Profibus-DP protocol
System Integration
* Supported by our PecStar® iEMS and iPQMS
* Easy integration into other Automation or SCADA systems via Modbus RTU and Profibus-DP protocol
