The EPM 7000 provides continuous metering of three-phase systems with waveform and data logging. It performs energy measurements with 0.2% accuracy and supports optional Ethernet, relay, status, and analog output communication modules. This flexible meter can be used for a wide range of high accuracy applications including disturbance recording and power quality studies.
Power quality metering with historical data logging
Waveform Capture, up to 512 samples/cycle
Expandable I/O with 100BaseT Ethernet
Multiple communication ports for integration with DCS and SCADA systems
Supports DNP 3.0 and Modbus protocols
Metering of distribution feeders, transformers, generators, capacitor banks and motors
Medium and low voltage systems
Commercial, industrial, utility
Flexible control for demand load shedding, power factor, etc.
Equipped with Front Mounted IrDA Communications port
Rear mounted RS485 serial interface which supports Modbus, and DNP 3.0
KYZ pulse outputs that are mapped to absolute energy.
Two expansion slots used for field replaceable I/O cards
EPM 7000 Features
The EPM 7000 meter provides revenue class (0.2%) three phase power metering with optional Ethernet, relay, status, and analog output communication modules. This flexible meter can be used for a wide range of high accuracy applications including disturbance recording and power quality studies.
EPM 7000 can easily be mounted in a panel for generator monitoring, substation automation, power quality studies, data recording and more. The meter can also provide data to RTUs, PLCs and other control devices.
The EPM 7000 is a highly accurate meter providing 0.1% accuracy for Voltage and Current. The unit’s real-time clock provides time stamping of all logs as they are created. Up to 2 MB of data can be logged for analysis of historical trends, limit alarms, I/O changes and sequence of events.
Advanced Logging Capability
(With Software option B and higher)
Historical Logs:
3 Assignable Historical Logs
Independently Program Trending
Up to 64 Parameters per Log
System Events Log:
Demand Resets
Password Requests
System Startup
Energy Resets
Log Resets
Log Reads
Programmable Settings Changes
I/O Change Log:
Times Stamped Log of any Relay Output
Time Stamped Log of Input Status Changes
2048 possible events
Limit/Alarm Log:
Provides Magnitude and Duration of an Event
Time Stamp and Alarm Value provided
2048 possible events
Limits Alarms and Control Capability
(Option D and higher)
Any measured parameter
Up to 16 limits can be selected
Voltage Imbalance
Current Imbalance
Based on percentage full scale settings
Power Quality Analysis
(Options E and F)
The EPM7000 can record voltage sag, swell, and current fault events. It records up to 512 samples per cycle, when events occur the meter will record pre and post event activity at a programmable sampling rate. Up to 4MB of storage is available allowing for a maximum of 170 events to be stored. Waveform data is stored in a circular buffer, this means that the meter is always recording.
The data sampled can be viewed as a real-time waveform, giving the user the ability to use the meter in an oscilloscope fashion. Harmonics can also be viewed in realtime up to the 40th order, and stored waveforms may be viewed up to the 255th order.
Metering
The following electrical parameters are measured and remotely accessed from the EPM 7000.
Universal Voltage and Current
This meter allows voltage input measurements up to 416 Volts Line to Neutral and 721 volts Line to Line. This insures proper meter safety when wiring directly to high voltage systems. The unit will perform to specification on 69 Volt, 120 Volt, 230 Volt, 277 Volt and 347 Volt power systems.
Universal Voltage and Current Inputs
The meter allows voltage inputs measurements up to 416 Volts Line to Neutral and 721 Volts Line to Line. This insures proper meter safety when wiring directly to high voltage systems. The unit will perform to specification on 69 Volt, 120 Volt, 230 Volt, 277 Volt and 347 Volt power systems.
Unique Current Input Connections
EPM 7000 meter uses two current input wiring methods.
Method One - CT pass through. Directly pass the CT through the meter without any physical termination on the meter. This insures that the meter cannot be a point of failure on the CT circuit. This is preferable to utility users when sharing relay class CTs. No Burden is added to the secondary CT circuit.
Method Two - Current “Gills.” The meter additionally provides ultra-rugged termination pass through bars allowing the CT leads to be terminated on the meter. This also eliminates any possible point of failure at the meter. This method is also a preferred technique for ensuring relay class CT integrity does not get compromised. No terminal blocks are required and this stud based design ensures that CTs will not open under a fault condition.
Through an optional high speed Modbus communications interface, the meter can also provide data to RTUs, PLCs and other control devices at Baud rates ranging from 9600 baud to 57.6 kbaud.
Solid Construction with Mounting Versatility
The EPM 7000 has a rugged design for harsh environment. This is especially important in power generation, utility substation, and critical user applications. The structural and electrical design of this meter was developed based on the recommendations and approvals of many of our utility customers.
EPM 7000 can easily be mounted in a panel for generator monitoring, substation automation and more. The unique dual design combines ANSI and DIN mounting structure and allows easy installation for both new metering applications and retrofit of existing analog meters.
The unit mounts directly in an ANSI C39.1 (4” Round form) or an IEC 92 mm DIN square form.
Software Options
The EPM 7000 is equipped with a virtual firmware based switch that allows feature upgrades through communications even after installation. This allows you to optimize your metering investment. Begin with a standard meter and upgrade it with more functionality as new features are needed, such as data logging, waveform capture or more memory. The table below describes the feature set of each software option.
Software Option
Measured Values
Real-Time
Avg
Max
Min
A
Voltage L-N
Voltage L-L
Current Per Phase
Current Neutral
% of Load Bar
Voltage Angles
Current Angles
Watts
VAR
VA
PF
Frequency
+Watt-hr
-Watt-hr
Watt-hr Net
+VAR-hr
-VAR-hr
VAR-hr Net
VA-hr
B
The above plus data-logging
2 MB Data-Logging
C The above plus Harmonic Analysis
Harmonic Analysis
D The above plus Limit and Control
Limit and Control Functions
E The above plus Waveform Capture
Waveform Capture at 64 samples/cycle
3 MB total Data-Logging
E The above plus Waveform Capture and Additional Memory
Waveform Capture at
512 samples/cycle
4 MB total Data-Logging
Communications Options
Front Mounted IrDA
All EPM 7000 meters come equipped with Front Mounted IrDA Communications port. This eliminates the need for a communications cable when the technician has an IrDA-equipped PC or a PDA with COPILOT EXT software. The meter can be set-up and programmed through the IrDA connection.
Rear Mounted Serial Port with KYZ Pulse
The RS485 serial interface supports Modbus, and DNP 3.0 at baud rates ranging from 9600 to 57.6K. Also supported are KYZ pulse outputs that are mapped to absolute energy.
Expandable I/O and Communications Capabilities
EPM 7000 meters have two expansion slots used to accept new I/O cards. These slots can be equipped at the factory or in the field. The meter auto-detects installed I/O cards. Up to two cards of any type may be used per meter.
E1:
100BaseT Ethernet Card
This card provides 100BaseT Ethernet functionality. Up to 12 simultaneous Modbus TCP/IP connections are supported
C1:
Four Channel Bi-directional 0-1mA Outputs
Assignable to any parameter
0.1% of Full Scale
0 to 10KΩ
Range ±1.20mA
C20:
Four Channel 4-20mA Outputs
Assignable to any parameter
0.1% of full scale
0 – 500Ω, no accuracy losses
Loop Powered up to 24VDC
RS1:
Relay status Outputs/ Two status Inputs
250VAC/30VDC – 5A Relays, Form C
Trigger on user set alarms
Set delays and reset delays
Status Inputs – Wet/Dry Auto Detect (Up to 150VDC)
Requires Software Option D or higher for limit based alarms and control
PS1:
Four Pulse Outputs / Four Status Inputs
Programmable to any energy parameter and pulse value
Normally Open Contacts, Form A
120mA continuous load current
Status Inputs – Wet/Dry Auto Detect
(Up to 150VDC)
Can function for manual relay control and limit based control
Requires Software options D or higher for limit based alarms and control
Protection & Control 
