Onset T-VER-E50B2 Installation Manual

onset

®

POWER MONITORING INSTALLATION GUIDE

T-VER-E50B2

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 protecti on against harmful interference when thi s
equipment is operated in a residential en vironment. 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.
Operation of this equipment in a residential area may cause harmful interference in
which case the user will be required to correct the in terference at his own expense.
Modifications to this product without the express authorization of Veris Industries
nullify this statement.

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 disconnecting 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.

This symbol indicates an
electrical shock hazard exists.

Documentation must be consulted where
this symbol is used on this product.

T-VER-E50B2

Compact Power and Energy Meter

Installer’s 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

Voltage 0.4% (+0.015% per °C deviation from 25°C) from 90V (L-N) to 600VAC (LL)
Sample Rate 2520 samples per second

Data Update Rate 1 sec
Type of Measurements True RMS up to the 21st harmonic 60 Hz,

One to three phase AC system

Input Voltage Characteristics:

Measured AC Voltage Minimum 90VL-N (156VL-L) for stated accuracy
UL Maximums: 600V
CE Maximums: 300V

Metering Over Range +20%
Impedance 2.5 MΩ (L-N)/5 MΩ (L-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 0.333VAC or 0 to 1.0VAC (+20% over-range)

Impedance 10.6kΩ (1/3 V mode) or 32.1kΩ (1 V mode)

Control Power:

AC 5VA max.; Minimum 90VAC,
UL Maximums: 600V
CE Maximums: 300V

DC* 3W max.; UL and CE: 125 to 300VDC

Ride Through Time 100 msec at 120VAC

Output:

Maximum Pulse Output 50 Hz
Amp Hour N.C., static output (30VAC/DC, 100mA max. @ 25°C,

derate 0.56mA per °C above 25°C)
Real/Reactive Energy N.O., static output (30VAC/DC, 100mA max. @ 25°C,

Pulse Contacts derate 0.56mA per °C above 25°C)

Mechanical Characteristics:

Weight 0.62 lb (0.28 kg)

IP Degree of Protection (IEC 60529) IP40 front display; IP20 Meter
Display Characteristics Back-lit blue LCD

Terminal Block Screw Torque 0.37 ft·lb (0.5 N·m) nominal/0.44 ft-lb (0.6 N·m) max.
Terminal Block Wire Size 26 to 14 AWG (0.13 to 2.08 mm2)

Rail T35 (35mm) DIN Rail per EN50022

Environmental Conditions:

Operating Temperature -30° to 70°C

Storage Temperature -40° to 85°C
Humidity Range <95% RH (non-condensing)

Altitude of Operation 3 km max.

Metering Category:

North America CAT III; for distribution systems up to 347 V L-N/600VAC L-L

CE CAT III; for distribution systems up to 300 V L-N
Dielectric Withstand Per UL 508, EN61010

Conducted and Radiated Emissions FCC part 15 Class B, EN55011/EN61000 Class B
(residential and light industrial)

Conducted and Radiated Immunity EN61000 Class A (heavy industrial)

Safety:

North America (cULus) UL508 (open type device)/CSA 22.2 No. 14-05

Europe (CE) EN61010-1:2001
* External DC current limiting is required, see fuse recommendations.

L-L

L-N

L-L

L-N

(347V

(520V

(347V
(520V

)

L-N

)

L-L

),

L-N

)

L-L

14724-D PAGE 1 © 2011–2013 Veris Industries and Onset Computer Corporation

Veris and the Veris “V” logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.

Onset, HOBO, HOBOware, and HOBOlink are trademarks or registered trademarks of Onset Computer Corporation.

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[e-mail]1.800.561.8187

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POWER MONITORING INSTALLATION GUIDE

DIMENSIONS

Housing

Bottom View (DIN Mount Configuration)

Bottom View (Screw Mount Configuration)

OPERATION

The E50B2 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 LCD screen on the faceplate allows instant
output viewing.

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.

DATA OUTPUTS

Native:

• Volt Ampere Reactive Hour (VARh)

• Watt Hours (Wh)

• Ampere Hour (Ah)

Derived in HOBOware®:

Derived Channel Unit Calculation

Reactive Power VAR VARh/h

Volt-Amps VA SQRT(Wh^2 + VARh^2)/h

Volts V SQRT(Wh^2 + VARh^2)/Ah

Power Factor PF Wh/SQRT(Wh^2 + VARh^2)

True Power W Wh/h

True Power KW W/1000

Kilowatt Hours KWh Wh/1000

Amp A Ah/h

(where ‘h’ is hours = Logging Interval/3600)

PRODUCT DIAGRAM

14724-D PAGE 2 © 2011–2013 Veris Industries and Onset Computer Corporation

Veris and the Veris “V” logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.

Onset, HOBO, HOBOware, and HOBOlink are trademarks or registered trademarks of Onset Computer Corporation.

www. .com

[e-mail]1.800.561.8187

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POWER MONITORING INSTALLATION GUIDE

INSTALLATION

Disconnect power prior to installation.

Any covers that may be displaced during the
installation must be reinstalled before powering
the unit.

Mount the meter in an appropriate electrical enclosure near
equipment to be monitored.

Do not install on the load side of a Variable Frequency Drive
(VFD).

The meter can be mounted in two ways: on standard 35 mm DIN rail
or screw-mounted to the back of the enclosure.

A. DIN Rail Mounting

1. Attach mounting clips to the underside of the housing by sliding

them into the slots from the inside. The stopping pegs must
face the housing, and the outside edge of the clip must be flush
with the outside edge of the housing.

2. Snap the clips onto the DIN rail. See diagram of the underside

of the meter.

3. To prevent horizontal shifting across the DIN rail, use two end

stop clips.

B. Screw Mounting

1. Attach the mounting clips to the underside of the housing by

sliding them into the slots from the outside. The stopping pegs
must face the housing, and the screw hole must be exposed on
the outside of the housing.

2. Use three #8 screws (not supplied) to mount the meter to the

back of the enclosure. See diagram of the underside of the
meter.

SUPPORTED SYSTEM TYPES

The E50B2 meter has a number of different possible system wiring configurations (see Wiring Diagrams, page 5–6). To configure the meter, set the
System Type via the User Interface. The System Type tells the meter which of its current and voltage inputs are valid, which are to be ignored, and
if neutral is connected. Setting the correct System Type prevents unwanted energy accumulation on unused inputs, selects the formula to calculate
the Theoretical Maximum System Power, and determines which phase loss algorithm is to be used. The phase loss algorithm is configured as a
percent of the Line-to-Line System Voltage (except when in System Type 1L + 1n) and also calculates the expected Line to Neutral voltages for
system types that have Neutral (System Types 2L + 1N and 3L + 1n).

Values that are not valid in a particular System Type will display as “----” on the User Interface

CTs Voltage

Connections

No. of
wires
2 1 A 2 A, N L-N 1L + 1n AN 1
2 1 A 2 A, B L-L 2L AB 2
3 2 A,B 3 A, B, N L-L with N 2L + 1n AB AN, BN AN, BN 3
3 3 A, B,C 3 A, B, C Delta 3L AB, BC, CA AB, BC, CA 4
4 3 A, B, C 4 A, B, C, N Grounded

Qty ID Qty ID Type User Interface:

Wye

System Type Phase Loss Measurements Wiring

Diagram

VLL VLN Balance Diagram

SETUP>S SYS

3L + 1n AB, BC, CA AN, BN, CN AN, BN, CN &

AB, BC, CA

Number

5, 6

14724-D PAGE 3 © 2011–2013 Veris Industries and Onset Computer Corporation

Veris and the Veris “V” logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.

Onset, HOBO, HOBOware, and HOBOlink are trademarks or registered trademarks of Onset Computer Corporation.

www. .com

[e-mail]1.800.561.8187

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POWER MONITORING INSTALLATION GUIDE

WIRING

To avoid distortion, use parallel wires for control power and voltage inputs.

The following symbols are used in the wiring diagrams on the following pages.

Symbol Description

Voltage Disconnect Switch

Fuse (installer is responsible for ensuring
compliance with local requirements. No fuses
are included with the meter.)
Earth ground

Current Transducer

Potential Transformer

Protection containing a voltage disconnect
switch with a fuse or disconnect circuit breaker.
The protection device must be rated for the
available short-circuit current at the connection
point.

14724-D PAGE 4 © 2011–2013 Veris Industries and Onset Computer Corporation

Veris and the Veris “V” logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.

Onset, HOBO, HOBOware, and HOBOlink are trademarks or registered trademarks of Onset Computer Corporation.

www. .com

[e-mail]1.800.561.8187

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®

POWER MONITORING INSTALLATION GUIDE

WIRING DIAGRAMS

CTs are not polarity sensitive. No need to observe orientation.

Diagram 1: 1-Phase Line-to-Neutral 2-Wire System 1 CT

SYSTEM TYPE 1L + 1n

Diagram 3: 1-Phase Direct Voltage Connection 2 CT

SYSTEM TYPE 2L + 1n

Diagram 2: 1-Phase Line-to-Line 2-Wire System 1 CT

SYSTEM TYPE 2L

Diagram 4: 3-Phase 3-Wire System 3 CT no PT

SYSTEM TYPE 3L

Diagram 5: 3-Phase 4-Wire Wye Direct Voltage Input Connection 3 CT

SYSTEM TYPE 3L + 1n

14724-D PAGE 5 © 2011–2013 Veris Industries and Onset Computer Corporation

Veris and the Veris “V” logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.

Onset, HOBO, HOBOware, and HOBOlink are trademarks or registered trademarks of Onset Computer Corporation.

www. .com

Diagram 6: 3-Phase 4-Wire Wye Connection 3 CT 3 PT

SYSTEM TYPE 3L + 1n

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