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Page 1 of 34 ©2018 Veris Industries USA 800.354.8556 or +1.503.598.4564 / suppor[email protected] 0818 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
For use in a Pollution Degree 2 or better environment only. A Pollution Degree 2
environment must control conductive pollution and the possibility of condensation or
high humidity. Consider the enclosure, the correct use of ventilation, thermal properties
of the equipment, and the relationship with the environment. Installation category:
CAT II or CAT III. Provide a disconnect device to disconnect the meter from the supply
source. Place this device in close proximity to the equipment and within easy reach of
the operator, and mark it as the disconnecting device. The disconnecting device shall
meet the relevant requirements of IEC 60947-1 and IEC 60947-3 and shall be suitable for
the application. In the US and Canada, disconnecting fuse holders can be used. Provide
overcurrent protection and disconecting device for supply conductors with approved
current limiting devices suitable for protecting the wiring. If the equipment is used in a
manner not specied by the manufacturer, the protection provided by the device may
be impaired.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Follow safe electrical work practices. See NFPA 70E in the USA, or applicable local codes.
• This equipment must only be installed and serviced by qualified electrical personnel.
• Read, understand and follow the instructions before installing this product.
• Turn off all power supplying equipment before working on or inside the equipment.
• Any covers that may be displaced during the installation must be reinstalled
before powering the unit.
• Use a properly rated voltage sensing device to confirm power is off.
DO NOT DEPEND ON THIS PRODUCT FOR VOLTAGE INDICATION
Failure to follow these instructions will result in death or serious injury.
A qualied person is one who has skills and knowledge related to the construction and
operation of this electrical equipment and the installation, and has received safety
training to recognize and avoid the hazards involved. NEC Article 100
No responsibility is assumed byVeris Industries for any consequences arising out of the
use of this material.
DANGER
NOTICE
• This product is not intended for life or safety applications.
• Do not install this product in hazardous or classied locations.
• The installer is responsible for conformance to all applicable codes.
• Mount this product inside a suitable re and electrical enclosure.
FCC PART 15 INFORMATION
NOTE: This equipment has been tested by the manufacturer and found to
comply with the limits for a class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a
residential environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio
communications. This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including
interference that may cause undesired operation.
Modifications to this product without the express authorization of the
manufacturer nullify this statement.
WARNING
LOSS OF CONTROL
∙ Assure that the system will reach a safe state during and after a control path failure.
∙ Separate or redundant control paths must be provided for critical control functions.
∙ Test the eect of transmission delays or failures of communication links.1
∙ Each implementation of equipment using communication links must be individually
and thoroughly tested for proper operation before placing it in service.
Failure to follow these instructions may cause injury, death or equipment damage.
1For additional information about anticipated transmission delays or failures of the link, refer to
NEMA ICS 1.1 (latest edition). Safety Guidelines for the Application, Installation, and Maintenance
of Solid-State Control or its equivalent in your specic country, language, and/or location.
Control system design must consider the potential failure modes of control paths and, for
certain critical control functions, provide a means to acheive a safe state during and after a
path failure. Examples of critical control functions are emergency stop and over-travel stop.
TM
Installation Guide
Power Monitoring
The safety of any system incorporating this equipment is the responsibility of the
assembler of the system.
Product Overview
The E51 DIN Rail Power Meter provides a solution for measuring energy data with a single device. Inputs include
Control Power, CTs, and 3-phase voltage. The E51 supports multiple output options, including solid state relay
contacts, Modbus (with or without data logging), and pulse. The LCD screen on the faceplate allows instant output
viewing.
The E51 meter is capable of bidirectional metering. Power is monitored in both directions (upstream and
downstream from the meter). The meter is housed in a plastic enclosure suitable for installation on T35 DIN rail
according to EN 50022. The E51 can be mounted either on a DIN rail or in a panel. Observe correct CT orientation
when installing the device.
E51C2, E51C3
Compact Bi-Directional
Power and Energy Meter
Specications
MEASUREMENT ACCURACY
Real Power and Energy IEC 62053-22 Class 0.2S, ANSI C12.20 0.2%
Reactive Power and Energy IEC 62053-23 Class 2, 2%
Current 0.2% (+0.005% per °C deviation from 25 °C) from 1% to 5% of range;
0.1% (+0.005% per °C deviation from 25 °C) from 5% to 100% of range
Voltage 0.1% (+0.005% per °C deviation from 25 °C) from 90 VacL- N to 600 VacL- L
Sample Rate 2520 samples per second; no blind time
Data Update Rate 1 sec.
Type of Measurement True RMS; one to three phase AC system
INPUT VOLTAGE CHARACTERISTICS
Measured AC Voltage Minimum 90 VL-N (156 VL-L ) for stated accuracy;
UL Maximums: 600 VL-L (347 VL- N); CE Maximum: 300 VL-N
Metering Over-Range +20%
Impedance 2.5 MΩL- N /5 MΩL-L
Frequency Range 45 to 65 Hz
INPUT CURRENT CHARACTERISTICS
CT Scaling Primary: Adjustable from 5 A to 32,000 A
Measurement Input Range 0 to 0.333 Vac or 0 to 1.0 Vac (+20% over-range), rated for use with Class 1
voltage inputs
Impedance 10.6 kΩ (1/3 V mode) or 32.1 kΩ (1 V mode)
Product Identication
Model Description Output Data Logging
Pulse RS-485 Alarm
E51C2 Modbus output, full data set • • •
E51C3 Modbus output, data logging • • • •
