All CTs should have a marking for orientation. Some have a white dot, some have a label others have some other marking. Make sure you check with the manufacturer if you are not sure. For most CTs with wires, there will be a white and black wire. In most but NOT ALL cases the white wire is the HI side and goes to the HI input on the meter. Black to LO. Again if you are not certain check with the supplier. For CTs with terminals, there should be a label on the HI terminal.

There are many symptoms you may see if the CTs are installed correctly. Mostly you will see things like negative watts in the Power readings. You may also see a reversal in the Energy Delivered and Energy Received registers. We can often look at the Phasor diagram and diagnose this issue. If you think you may have an issue send a phasor diagram to support@electroind.com and we will be happy to evaluate. We also need to know if you are connected as a Wye or Delta. Current and Voltage values will be normal since they only represent absolute values. If you have one CT oriented wrong, things like Total Energy will be in error because the energy in one phase will be subtracted from the energy in the other two phases.

Primarily there are two critical things to get correct. First is the orientation of the CT. All CTs have a marking like a white dot on one side. This should always be installed facing the power source. For a typical installation on a building or where you want to measure energy to a load, you want the white dot facing the utility company. In all cases all CTs MUST be installed in the same orientation. Second you need to wire the CTs to the meter with the HI side of the CT connected to the HI side on the meter and the LO side to the LO terminals on the meter.

YES. You should always use a shorting block for your CTs unless you are working with a system that can easily be powered down for maintenance. The outputs of a CT should always be shorted together when the system is energized. If current is not allowed to flow the CTs will heat up very quickly and be damaged. Shorting blocks allow you to change out a meter without shutting down the system and will protect the CTs from being damaged.

With the Nexus meters we mostly provide readings in secondary values. There are 2 ways to get to the primary values.

1. You can multiply the secondary values by the CT and PT ratios. For voltage and current, you would have your system multiply by the PT ratio and CT ratio respectively. For example, if you hat a CT ratio of 1200/5 the ratio is 240. So, if you had 3.5A in the secondary IA register the primary current is 3.5X240 or 840A. For energy you need to multiply by both CT and PT ratio.
2. The second method is to use the Custom Modbus mapping provided in the Nexus meters. Go into the profile for the meter and under general settings you will find a tab for Custom Modbus Map. You can define pretty much anything the meter reads or calculates in that map. You can use this to load Primary values into custom registers and then read Primary values.

1. First thing to know is that the mA output module can be set via secondary settings only for volts, amps and power. So using the CT and PT ratio, we need to convert to secondary the MW value that you desire. 100MW is equal to 100,000,000 / (1600/5 x 14400/120) = 260.14W. Therefore, the high value (20mA) = 260.14 while low value (4mA) = -260.14.
2. To set the meter, using Communicator EXT > Device profile > Ext I/O module > Assign each output to Watt Total
   

Shark meters are ideal for getting the energy readings for loads, generation and even mixed systems that generate part of the time and act like a load part of the time. A good example of the latter is a wind farm. When the wind is not blowing or the propeller is stopped, the wind generator will actually use energy to keep its transmission warm on cold days. Depending on how you have the meter configured and how you orient the CTs you will see energy accumulating in the RCD (Received) or DEL (Delivered) registers. For systems that have both, one value will show up as negative watt hours. The NET register is the sum of the two values in the RCD and DEL windows. The TOT register is the absolute value of the RCD and DEL registers added together. So, at the end of the month for our wind farm we might see +WH in the RCD window representing the energy that was generated and sent to the grid. We would see – WH in the DEL window representing energy used by the wind generator. The NET would be the sum of the two and this would be the energy that the power company would need to pay the wind farm for. The TOT would be the sum of WH in the DEL and RCD registers representing the total energy in the period.

The Shark 200 – INP100S doesn’t have gateway function thus it is not possible.

No. The webpage or webserver of the meter is read-only data.

Download the driver from this link:
https://www.electroind.com/Tech-Support/EIG/Drivers/IrDa%20Driver/sigmatel_win7/

Download and save the files into the same folder as the IrDA files.

To reset the energy, write the following command on modbus,

01069CA3xxxx

Where:
01 – is the meter modbus address
06 – Modbus write function
9CA3 – Modbus register in Hex format
xxxx – is the meter password, if not configured, use “15B3” in hex format. This is the default modbus password

From the Shark 200 Modbus Register Map, the Primary Readings Block Format is Float (or reverse float for most software settings) but for some software that doesnt have the Float format, Integer reads can be used by using the formula,

Modbus = (1st Shark Modbus register x 65536) + (2nd Shark Modbus register + 65536)/65536

Remember that the resulting modbus is expressed in secondary values so to convert into Primary readings use CT ratio for current, PT ratio for voltage and CT and PT ratio for Power.

The default configuration works only with initial meter device profile. This means the PT numerator and denominator and CT num are not changed. Once the CT and PT ratios are changed then you will need to program each channels with high and low output based on primary values of the CT and PT. Programming will need our Communicator EXT 3.0 software and the means to communicate to the meter.

The assumption for the Kh is correct. TV stands for “Test Voltage” or also the voltage input. the Kh unit is Wh/pulse and is expressed in secondary so you need to use the CT ratio and PT ratio to express it in primary. So for example, if the CT is 400/5 and has no PT (120/120) then the CT ratio is 80 and PT ratio is 1. So, the overall factor to be used to multiplied to the number of pulses counted by the PLC is

Factor = Kh x CT ratio x PT ratio = 0.500017776x80x1 = 40.00

So,

Energy consumption (kWh)= [Factor x No. of Pulses received] / 1000

Press the scroll down button to go to “W/VAR/PF” screen and then press the arrow right button once to lit the “MAX” LED on the left side. The phase A reading is your Max Demand Watts reading or Peak demand at 15 minute interval (default) settings.

No. You will need our CAB6490 IrDA dongle to do that. The dongle comes already with Windows 7 compatible driver and so driver installation is automatic. The important feature that makes it ‘Standard Modem Over Ir Link” is the most important feature for it to connect seamlessly to the meter using our Communicator EXT software.

Indeed, our electrical diagrams doesn’t show it because our current input terminals are already tied up to ground internally. So there’s no need to do it externally.

Yes the meter can be used for any single phase application (2 wire or 3 wire). The manual already have an example of the wiring diagram for Dual phase (3 wire) and single phase (2 wire). Please see pages 4-9 to 4-10 for the diagram.

At least one voltage input with a minimum 20 V AC must be connected in it to work. This is “bias” voltage and is necessary for the meter to work properly in CT measurement mode only.

The Power supply option D2 has a range of 90-265 V AC or 100-370 V DC so 277 V AC is about 5% higher than the rated voltage. When used at this higher voltage and in prolonged period of time will have great effect on the power supply that may cause the meter to break down early. It is recommended to seek an alternative 120 V AC regular plug or use a control power transformer to step down the voltage from 480 V to 120 V.

Electro Industries, the leader in power monitoring and smart grid solutions, is looking for experienced, technical, customer facing Outside Sales Engineers to join our Technical Sales Team.

In this position you will work as part of the regional sales team to qualify leads and work directly with customers to identify power monitoring projects and find solutions utilizing EIG’s power meters and energy management software. We are currently seeking a Sales Engineer to cover the Northwest Territory. Ideal location would be in the Seattle, WA vicinity.

Duties & Responsibilities:
Responsible for the integrity of company data, which is entered by a number of CRM users.

• Maintain relationships with facilities/maintenance managers and engineers
• Follow up on open projects and opportunities
• Ability to perform product demonstrations to Industrial/Utility and Commercial environments
• Attend and exhibit at regional conferences and tradeshows
• Find additional leads via the internet to bring in sales
• Position reports to the Regional Territory Manager
• Requires 50% overnight travel

Qualifications and Experience:

• Energetic and outgoing personality
• Ability to integrate technical and sales
• Excellent communication skills and ability to communicate at a technical level
• Bachelor’s Degree in Electrical Engineering preferred

Electro Industries, the leader in power monitoring and smart grid solutions, is looking for an Embedded Software Engineer to join our talented Engineering team. This position is located at our corporate office in Westbury, NY.

Duties & Responsibilities:
Responsible for the integrity of company data, which is entered by a number of CRM users.

• Develop embedded programs and firmware
• Support existing firmware, fix bugs and add new features.
• Interface with hardware design and development, and review code design.
• Support customer service with firmware issues.
• Create and maintain internal firmware documentation.
• Review and support software manuals created by technical writers.

Qualifications and Experience:

• Bachelor of Electrical Engineering, Computer Science or related field
• Master Degree a strong plus including computer architecture, program languages, Digital systems, electronic/digital circuit prototyping and other relevant courses.
• 5 -10+ years of experience in embedded systems and firmware design architecture
• Must have skills in C and C#; OS coding, Interfaces; hardware and tool development for compiling and debugging.
• Excellent problem-solving skills
• Excellent communication skills both written and verbal

Electro Industries, the leader in power monitoring and smart grid solutions, is looking for a Hardware Design Engineer to join our Engineering team. This position is located at our Corporate office in Westbury, NY.

Duties & Responsibilities:
Responsible for the integrity of company data, which is entered by a number of CRM users.

• Create design requirements specifications from product features, illustrated with high and detailed level block diagrams.
• Requirements include electrical, mechanical, environmental and standards compliance details.
• Design Analog and Digital or mixed mode circuits with schematic capture and board layout software.
• Optimize design for manufacturing process.
• Make bills of materials and assembly drawings for production.
• Write production test specifications and procedures.
• Create circuit design verification and debug documentation.
• Test prototypes and provide performance analysis in written report.
• Research, test and verify substitutes for end of life parts.
• Perform any other electrical duties required by the Company.

Qualifications and Experience:

• Bachelor of Electrical Engineering
• 5-10 years of experience in hardware engineering and design
• Knowledgeable in design system/hardware/
• Experienced with CAD design
• Excellent problem-solving skills
• Ability to source components and work with component vendor
• Excellent communication skills both written and verbal

Full Time/ Direct Hire
Location: Work from Home – Night Shift

The global market leader in the Power Monitoring Market, is seeking Regional Sales Team Backend Staff, to support their current operations and promote future growth.
This position has an excellent salary package and is an immediate opening!

Reporting to a Regional Manager and Inside Sales Engineer, the Regional Sales Team Backend Staff is responsible for managing the Customer Relationship Management System on a day-to-day basis and keeping all the tasks for the team updated. The ideal candidate will be process-oriented, pay close attention to details, and have analytical thinking skills. Additionally, this role will require in-depth knowledge of internal sales, marketing and business processes. Must have excellent interpersonal skills. Must be willing to work at night and should have a quiet place to work from.

Essential Functions:
Responsible for the integrity of company data, which is entered by a number of CRM users.

• Sending Quotations
• Ensuring data is correct across Accounts, contacts, opportunities.
• Identifying & Correcting errors made by system users
• Communicating errors made by users in a friendly, helpful manner
• Checking to ensure that all opportunities are up-to-date, in real-time
• Ensuring all data fields are populated correctly at all times
• Reporting improper system usage to senior management
• Follow up with customers.
• Work with Sr. Management to ensure key functionalities are understood.
• Enforcing new user adoption by monitoring login history, providing help-desk support for all systems users and escalating issues to our IT team if needed.
• Building customer reports and dashboards specific to job functions.
• Provisioning all new users and providing system training and customization.
• Importing and exporting of data as required to synchronize back-end system.
• Work with Sr. Management to provide in –depth information on all our opportunities.

Experience Required:

• Minimum of 2 years’ experience in a marketing or sales administration role
• Experience in Lead generation using web
• Exceptional knowledge of marketing and sales processes and workflows.
• Ability to develop strong relationships and work with senior level executives
• Exceptional written and verbal communication skills
• Solid business acumen, management, and problem-solving skills
• Strong computer skills, especially Microsoft office
• Effective time management, organization, and leadership skills.

Thank you for your submission and we appreciate your interest in working for Electro Industries/GaugeTech. We will be reviewing all applications and invite the most qualified candidates for an interview.

Electro Industries, the leader in power monitoring and smart grid solutions is looking for an experienced Field Application Engineer to join our Engineering Support Team.

We take pride in the support we offer with our products and that support continually brings customers back to EIG. In this position you will work directly with customers providing technical assistance on the installation and operation of our products and software. We are currently offering positions in the vicinities of Richmond, VA area, San Francisco Bay area and Corporate headquarters in Westbury, Long Island.

Duties:

• Provide technical assistance and support to company engineers and equipment end users in the quick and efficient startup of newly installed equipment. Also training of site personnel in the operation and maintenance and repair of the equipment
• Write technical reports, bulletins, FAQs, troubleshooting and programming guidelines and procedures
• Plan and modify products to meet customer needs
• Set up and debug the company’s SCADA system at client sites
• Develop action plans for open support cases and ensure customer satisfaction
• Be responsible for the commissioning of both power metering products as well as entire industrial systems

Skills/Qualifications:

• Must have a Bachelor degree in Electrical Engineering or Electronic Engineering or related field of study
• Knowledge of SCADA programming is required
• This position requires approximately 20% to 50% of primarily domestic travel to client sites
• Must be available for travel on short notice; (Both Domestic and International travel are likely to be required)
• Must have valid driver’s license and clean driving record and the ability to obtain an U.S. passport