VT520DIN AC voltage meter

Product page: https://www.vutlan.com/analog-sensors/34-vt520din-ac-voltage-monitor.html

Datasheet page: https://vutlan.atlassian.net/wiki/spaces/DEN/pages/698580995/VT520+AC+voltage+monitor

Description

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Function and purpose

The VT520 AC Voltmeter is essential for precise measurement of AC voltage from 0-246V, offering high accuracy of 1%. This plug-and-play analog sensor can be connected to any analog port (A1...A8) of the Vutlan monitoring unit, allowing for real-time monitoring of electrical equipment in racks. Designed for easy DIN rail mounting, it’s perfect for electrical and equipment racks.

The maximum number of sensors and overall system length can be extended using the VT408 Sensor Extension Unit, providing scalable monitoring for larger setups.

Use cases

These use cases illustrate the VT520 AC Voltmeter's versatility and importance in various sectors where accurate voltage monitoring is critical.

1. Data Center Monitoring: The VT520 can be utilized in data centers to continuously monitor AC voltage levels across multiple racks. This ensures that servers and networking equipment receive stable voltage, helping to prevent potential equipment failure due to voltage fluctuations.

2. Industrial Equipment Monitoring: In manufacturing environments, the VT520 can monitor the voltage supplied to heavy machinery. Accurate voltage measurement helps operators maintain optimal performance and prevent downtime caused by electrical issues.

3. Building Management Systems: The voltmeter can be integrated into building management systems to monitor voltage levels for HVAC systems, lighting, and other electrical equipment. This aids in energy management and can trigger alarms if voltage levels fall outside specified thresholds.

4. Electrical Panels: When installed in electrical distribution panels, the VT520 can provide real-time voltage monitoring to electricians and facility managers, allowing for quick diagnosis of electrical problems.

5. Power Quality Analysis: The sensor can be used for power quality assessments, helping to identify issues like voltage sags, swells, and harmonics that can affect overall system performance and equipment longevity.

6. Renewable Energy Systems: In solar or wind energy systems, the VT520 can monitor AC voltage output to ensure that the generated energy is within safe operational limits for connected devices.

7. Research and Testing: In laboratories or testing facilities, the VT520 can be used to conduct experiments or tests on electrical devices, providing precise voltage readings necessary for accurate data collection.

Technical specifications

Components

The sensor consists of

• DIN rail 2M plastic housing: flammability rating is UL94V-0; body color is grey; the material is ABS

• AC voltage meter board

Safety instructions

Carefully READ and FOLLOW the safety precautions outlined below BEFORE working with the voltmeter.

• Only qualified electrical workers should install this equipment. Such work should be performed only after reading this entire set of instructions.

• NEVER work alone.

• Before performing visual inspections, tests, or maintenance on this equipment, disconnect all sources of electric power. Assume that all circuits are live until they have been completely de-energized, tested, and tagged. Pay particular attention to the design of the power system. Consider all sources of power, including the possibility of backfeeding.

• Turn off all power supplying the voltmeter and the equipment in which it is installed before working on it.

• Always use a properly rated voltage-sensing device to confirm that all power is off.

• Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. In the USA, see NFPA 70E

• Before closing all covers and doors, carefully inspect the work area for tools and objects that may have been left inside the equipment.

• Use caution while removing or installing panels so that they do not extend into the energized bus; avoid handling the panels, which could cause personal injury.

• The successful operation of this equipment depends upon proper handling, installation, and operation. Neglecting fundamental installation requirements may lead to personal injury as well as damage to electrical equipment or other property.

• The power meter should be installed in a suitable electrical and fire enclosure.

Dimensions

Mounting

1. The device is mounted onto a DIN rail 35mm bar.

2. Insert the wall clip / DIN rail clip into the enclosure.

3. Insert/press the enclosure onto the DIN rail bar.

4. In case You need to unmount it, pull the wall clip / DIN rail guard with the screwdriver and pull the enclosure outwards.

Wiring

1. Switch OFF the power of the AC line and follow other instructions from the section "Safety instructions".

5. Follow power cable specifications for the next step.

6. Insert the power cables.

7. Connect the device with the Vutlan monitoring system using a 6P4C RJ11 cable (cable is supplied).

9. Turn the AC line power back ON.

Connecting analog sensors

Included page Analog sensors connection

VT520DIN is an analog plug-and-play sensor. It is connected to an analog port of any Vutlan monitoring system.

Connection wiring/cable pinouts

Cable 6P4C RJ11

Used for connecting the device with

The transducer and the transceiver are installed together.

• Mount the transducer using M4 screws and M4 nuts. The distance between mounting holes is 50 mm.  

• Mount the current transceiver using M4 screws and M4 nuts. The distance between mounting holes is 60 mm.

• Use a 4-core flat cable and two green connectors supplied with the transceiver and the transducer to assemble the connecting cable.

Configuring analog sensors

Technical support

The device does not contain any user-serviceable parts. If the power meter requires service, contact your local sales representative. Do not open the device. Opening the device voids the warranty.

Troubleshooting

The following table describes potential problems and their possible causes. It also describes checks you can perform or possible solutions for each. After referring to this table, if you cannot resolve the problem, contact your local Vutlan sales representative for assistance.

Frequently asked questions

Copyright:

Vutlan s.r.o. (LLC)

Remote Infrastructure Monitoring and Control

43 ul.Svornosti, 821 06 Bratislava,

Slovak Republic

www.vutlan.com