Onset T-VER-E50B2 Compact Power and Energy Meter Installation Guide

T-VER-E50B2 Compact Power and Energy Meter

Test Equipment Depot – 800.517.8431 – 99 Washington Street Melrose, MA 02176 – TestEquipmentDepot.com

T-VER-E50B2Compact Power and Energy MeterQuick Install Guide Z205881-0D

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.

Additional Resources:

FCC PART 15 INFORMATION Note: This equipment has been tested by the manufacturer and foundto 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 this 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. Operation of this equipment in a residential area may cause harmful interference in which case the user will be required to correct the interference at his own expense. Modifications to this product without the express authorization of Veris Industries nullify this statement.

This symbol indicates an electrical shock hazard exists.

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

INSTALLATIONDisconnect 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 the slots from the outside. The stopping must face the housing, and the screw must be exposed on the outside of the housing. 2. Use three #8 screws (not supplied) to the meter to the back of the enclosure. diagram of the underside of the meter.

into pegs holemount See

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SUPPORTED SYSTEM TYPESThe meter has a number of different possible system wiring configurations (see Wiring Diagrams, page 9-10). 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 (2L + 1N and 3L + 1n).Values that are not valid in a particular System Type will display as “—-” on the User Interface.

No. of wires 2 2 334

CTs Qty ID
















Voltage Connections Qty ID Type


A, L-N



A, L-L



A, L-L with

B, N



A, Delta




A, Ground-

B, ed Wye



System Type User Interface: SETUP>S SYS 1L + 1n2L2L + 1n3L3L + 1n

Phase Loss Measurements VLL VLN Balance










BC, BN, CN &



Wiring Diagram Diagram Number1 2 345, 6

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Measurement Accuracy: Real Power and Energy

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

Input Voltage Characteristics: Measured AC VoltageImpedance

Minimum 90VL-N (156VL-L) for stated accuracyUL Maximums: 600VL-L (347VL-N) CE Maximums: 300VL-N (520V L-L)2.5 M (L-N)/5 M (L-L)

Frequency Range

45 to 65 Hz

Input Current Characteristics: Measurement Input RangeImpedance

0 to 0.333VAC or 0 to 1.0VAC (+20% over-range) 10.6k (1/3 V mode) or 32.1k (1 V mode)

Control Power: ACDC*

5VA max.; Minimum 90VAC, UL Maximums: 600VL-L (347VL-N), CE Maximums: 300VL-N (520V L-L)3W max.; UL and CE: 125 to 300VDC

Ride Through Time

100 msec at 120VAC

Mechanical Characteristics: IP Degree of Protection (IEC 60529)

IP40 front display; IP20 Meter

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)


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


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)


* External DC current limiting is required, see fuse recommendations.

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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.


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 TransformerProtection 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.

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Bottom View (DIN Mount Configuration)

Bottom View (Screw Mount Configuration)


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Diagram 3: 1-Phase Direct Voltage Connection 2 CTSYSTEM TYPE 2L + 1n

Diagram 4: 3-Phase 3-Wire System 3 CT no PTSYSTEM TYPE 3L

CONTROL POWERDirect Connect Control Power Line to Line (L-L)

Direct Connect Control Power Line to Neutral (L-N)

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

Diagram 1: 1-Phase Line-to-Neutral 2-Wire System 1 CTSYSTEM TYPE 1L + 1n

Diagram 2: 1-Phase Line-to-Line 2-Wire System 1 CTSYSTEM TYPE 2L

Diagram 5: 3-Phase 4-Wire Wye Direct VoltageInput Connection 3 CTSYSTEM TYPE 3L + 1n

Diagram 6: 3-Phase 4-Wire Wye Connection 3 CT 3 PTSYSTEM TYPE 3L + 1n

Line to Line from 90VAC to 600VAC (UL) (520VAC for CE). In UL installations, the lines may be floating (such as a delta). If any lines are tied to an earth (such as a corner grounded delta), see the Line to Neutral installation limits. In CE compliant installations, the lines must be neutral (earth) referenced at less than 300VACL-NDirect Connect Control Power DC

Line to Neutral from 90VAC to 347 VAC (UL) or 300VAC (CE)Control PowerTransformers (CPT) Connection


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These instructions assume the meter is set to factory defaults. If it has been previously configured, all optional values should be checked.1. Press or repeatedly until SETUP screen appears.

2. to the PASWD screen.

3. through the digits. Use or to select the password (the default is 00000). Exit the screen to the right.

4. to the S CT (Set Current Transducer) screen.

a. to the CT V screen. Use or to select the voltage mode Current Transducer output voltage.

b. to the CT SZ screen and through the digits. Use or to select the CT size in amps.c. back to the S CT screen.

5. to the S SYS (Set System) screen.

a. to the SYSTM screen. Use or wiring diagrams on pages 9­10).b. back to the S SYS screen.

to select the System Type (see

6. (Optional) to the S PT (Set Potential Transformer) screen. If PTs are not used, then skip this step.

a. to the RATIO screen and through the digits. Use or to select the Potential Transformer step down ratio.b. back to the S PT screen.

DC Control Power from 125VDC to 300VDC (UL and CE The Control Power Transformer may be wired L-N


or L-L. Output to meet meter input requirements.

Fuse Recommendations:

Keep the fuses close to the power source (obey local and national code requirements). For selecting fuses and circuit breakers, use the following criteria: · Current interrupt capacity should be selected based on the installation category and faultcurrent capability. · Over-current protection should be selected with a time delay. · The voltage rating should be sufficient for the input voltage applied. · Provide overcurrent protection and disconnecting means to protect the wiring. For DCinstallations, the installer must provide external circuit protection (suggested: 0.5 A time delay fuses).· The earth connection is required for electromagnetic compatibility (EMC) and is not a protective earth ground.

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7. to the S PWR (Set System Power) screen. a. to the MX MW screen, which displays the calculated Maximum System Power for your reference. b. back to the S PWR screen.8. to the S PULS (Set Pulse) screen to set the scaling factors for Wh, VARh, and mAh.a. to Wh/P screen. Use or to set the Wh and VARh per pulse (the default is 1).b. to mAh/P screen. Use or to set the mAh per pulse (the default is 10).c. to the mS/P screen, which displays the Pulse Duration Time for your reference (use 10 mS/P for HOBO products).d. back to the S PULS screen.9. Use to exit the setup screen and then SETUP. 10. Check that the wrench is not displayed on the LCD.a. If the wrench is displayed, use or to find the ALERT screen. b. through the screens to see which alert is on.For full setup instructions, see the T-VER-E50B2 Full Installation Guide available on onsetcomp.com.


The T-VER-E50B2 has three outputs. These outputs can be connected to HOBO loggers as shown below.

Terminal block wire range: 12-24 AWG




Wht to input 3


input 1




input 2


2 3



input 3


Ch 4 not used



Wht to input 2



Blk Wht to input 1 NC

input 1, 2, or 3* Connect to any open pulse portS-UCC-M00x*

input 1, 2, or 3*Connect to any open Smart Sensor jack* With ZW, one CABLE-2.5-STEREO is required for each T-VER-E50B2 pulse output channel (VARh, Wh, Ah) to be monitored. With H21, H22, and U30, one S-UCC-M00x is required for each channel.

HOBO UX120-017 Data LoggerHOBO ZW Wireless Data Node(with pulse input)HOBO H21, H22, or U30 Series Data Logger (H22-001 shown)

Notes when connecting to non-HOBO® devices:· The T-VER-E50B2 has solid-state outputs rated for 30VAC/DC nom. · VARh and Wh are normally open; Ah is normally closed. · Maximum load current is 100mA at 25°C. Derate 0.56mA per °C above 25°C (e.g.°C). · The over-current protective device must be rated for the short circuit current at theconnection point. · Pulse outputs are only intended to be connected to non-hazardous voltage circuits(SELV or Class 2). Do not connect to hazardous voltages.


© 2011­2013 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 and HOBO are registered trademarks of Onset Computer Corporation.14708-D MAN-VERIS-E50B2

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