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Installation Guide

Power Monitoring

ZL0116-0A

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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 specified 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 qualified 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.

NEC2009 Article 100

No responsibility is assumed by Veris 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 classiﬁed locations.

• The installer is responsible for conformance to all applicable codes.

• Mount this product inside a suitable ﬁre 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 effect of transmission delays or failures of communication links.

∙ 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.

For additional information about anticipated transmission delays or failures of the link, refer to

NEMA ICS 1.1 (latest edition).

Safety Guidelins for the Application, Installation, and Maintenance

of Solid-State Control

or its equivalent in your specific 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.

Product Overview

The E50B1A and E50CxA DIN Rail Power Meter provides a solution for measuring energy data with a single device.
Inputs include control power, CT, and 3-phase voltage. The E50CxA 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. These meters include built-in CT integrators and CT power supplies. The E50B1A and
E50CxA work only with Veris U018 series rope style CTs.

The meter is housed in a plastic enclosure suitable for installation on T35 DIN rail according to EN50022. The E50 can
be mounted with any orientation over the entire ambient temperature range, either on a DIN rail or in a panel. The
meter is not sensitive to CT orientation to reduce installation errors.

E50B1A, E50C2A, E50C3A

Compact Power and Energy Meter

Specifications

MEASUREMENT ACCURACY

Real Power and Energy

IEC 62053-22 Class 0.5S, ANSI C12.20 0.5%

Reactive Power and Energy

IEC 62053-23 Class 2, 2%

Current

0.4% (+0.015% per °C deviation from 25°C) from 5% to 100% of

range; 0.8% (+0.015% per °C deviation from 25°C) from 1% to 5% of

range