Newsletter – Winter 2012
Hi there and Happy Holidays !
|Cynthia A. Boyd, Director of Sales|
Thanks to many of you who visited our booth at either the WEEC (World Electrical Engineering Congress) in Atlanta or at the Greenbuild Expo in San Fran. We not only exhibited at both expos in November but marked both of these occasions with the release of the new WattNode® Revenue, our high-accuracy, revenue-grade kW / kWh meter line.
In January we will be exhibiting at the AHR ( The International Air-Conditioning-Heating-and Refrigeration) Expo in Dallas and at Distributech in SanDiego. We have free expo passes available if you are interested in attending. We will be showing a full line of low voltage revenue-grade current transformers as well as a new Rogowski coil – a flexible easy-to-install current measurement system for higher currents in compact spaces or for multiple conductor installations.
This issue of the newsletter will address the FAQs regarding WattNode installations, information about the new WattNode Revenue – our newest addition to the WattNode product line, and the powerful combination of WattNode meters and OnSet Hobo® data loggers.
In closing, I thank you for being a valued contact. Please be assured that we would never make our private mail list public or available for rent or purchase. I personally would appreciate any feedback that you may have as I hope to make this newsletter a valuable and meaningful way for us at Continental Control Systems to keep in touch.
We all wish you and yours a happy and safe holiday season.
Continental Control Systems announces the release of the new revenue-grade line of power meters
The WattNode Revenue line of meters are designed for use in applications requiring revenue-grade accuracy. The WattNode Revenue meters meet the accuracy requirements for ANSI C12.1 and C12.20 Class 0.5 and support Modbus, BACnet or LonTalk communications protocol or pulse output. ***
The WattNode Revenue marks a new level of performance for the WattNode brand of electric power meters. WattNode meters are used in building automation and energy management systems worldwide and offer a compact, cost-effective and networkable solution for electric power metering.
The new WattNode Revenue now brings these same advantages to revenue-grade applications such as tenant submetering in residential and commercial spaces, PV energy generation metering, UMCS metering on military bases and more.
***ANSI C12.1 and C12.20 standards require current transformers that meet IEEE 57.13 accuracy such as the Accu-CT® line of split-core high-accuracy CTs.***
OnSet® Hobo® Data Logger
The new low-cost kWh monitoring and display solution for the WattNode Pulse !!
For an economical way to track ENERGY consumption (kWh) , consider using Onset’s award-winning HOBO UX90 State/Pulse Logger with CCS’s industry-leading WattNode Pulse Output Energy meter. The UX90-001, (84,650 measurements) is $85 and the UX90-001M, (346,000 measurements) is $110.
This powerful combination offers rapid deployment, high-accuracy measurements, and is ideal for use in commercial, industrial, and residential applications.
Key advantages of the Onset HOBO UX90
Key advantages of the CCS WattNode Pulse Meter
Onset is a leading supplier of data loggers. The company’s HOBO data logger and weather station products are used around the world in a broad range of applications, including building energy performance monitoring, water resources management, and ecological and agricultural research. Based on Cape Cod, Massachusetts, Onset has sold more than 2 million data loggers since the company’s founding in 1981.
** The WattNode meter AND the Hobo Data Logger can be purchased from Onset **
Visit Onset on the web at http://www.onsetcomp.com
January 28 – January 30, 2013
AHR Expo – Dallas, TX, Booth # 761
On-line registration is available or you can contact us for free expo tickets.
January 29 – January 31, 2013
Distributech – San Diego, CA. Booth 3145
On-line registration is available or you can contact us for free expo tickets.
March 6,7, 2013
Globalcon – Philadelphia, PA, Booth # 105
March 12 – 14, 2013
NFMT – Baltimore, MD, Booth # 2061
|FAQs ??? Ask John Browne:|
WattNode Meter Installation
All models of WattNode energy meters require basically the same electrical connections. A typical single phase installation requires two current transformers (CTs),and two line voltage connections, one for each phase. In some applications, in this case, not all of the CT or voltage connections are used. All models require either a neutral or safety ground connection. A neutral connection is required for wye (3Y) models and a safety ground connection is required for delta (3D) models. In addition, two or more meter output connections are required.
Mount the Meter
WattNode meters are typically mounted inside an electrical enclosure, service panel, equipment wiring compartment, or limited access equipment room. The meter may be installed in any orientation using the two #8 sheet metal screws supplied with the meter or other suitable fasteners. Exercise caution not to over tighten the screws and crack the mounting tab. Refer to the Mounting section in your manual for additional details and a full scale drilling template.
WattNode meters can be used outdoors, but must be protected from moisture, direct sunlight, high temperatures, and conductive pollution by mounting the meter inside an environmentally rated enclosure, such as IP 66 or NEMA 3R or 4.
Connect the Voltage Inputs
The voltage connections are made to the detachable six circuit green screw terminals block on the right side of the meter. Depending on your application, one, two, or three phase voltage connections are required. The largest wire that will fit in the terminal block is 12 AWG. Strip the insulation to expose 1/4″ of bare copper. When wiring the meter, do not put more than one wire under a screw. If you need to distribute power to other meters, use wire nuts or a power distribution terminal block.
The voltage inputs to the meter require overcurrent protection and a disconnect means. The easiest way to accomplish this, if there is space in the panel, is to install a 15 or 20 amp breaker. If there is no space available, the meters’ voltage inputs can come from an existing circuit that is already protected, in which case there is no need for additional overcurrent protection at the meter.
Note that the voltage inputs to the meter do not need to come from the same branch circuit as the load being monitored. In other words, if you have a three-phase panel with a 100 A three-pole breaker powering a motor that you wish to monitor, you can power the meter (or many meters) from a separate 15 or 20 amp three-pole breaker installed in the same, or even adjacent panel, so long as the load and voltage connections are supplied from the same electric service (same transformer).
Connect the Current Transformers
Install the current transformers (CTs) on the conductors feeding the load being measured. Depending on your application, one, two, or three CTs are required. Connect the CT lead wires to the appropriate terminals on the detachable black six circuit CT input terminal block on the left side of the meter. Note the polarity of each pair of terminals is indicated by a white and black dot on the front label. Be sure to connect the white wire to the phase terminal aligned with the white dot, and the black wire to the terminal with the black dot.
Unused CT inputs could possibly pickup electrical noise, so it is a good practice to short out unused CT input by connecting a wire jumper about 1 inch long between the white and black CT terminals.
Connect the Output Wires
Depending on the model of meter and your application, connect two, three, or four wires from the detachable output terminal block on the left side of the meter to the appropriate network, data logger, LCD register display, or other recording device. These wires are typically 22 to 18 AWG (solid or stranded), twisted, and optionally shielded.
John Browne is one of our resident WattNode meter and energy monitoring specialist. He is available by phone or email and is our first line of technical support. He uses his expertise to help you in product selection, product specification, installation support and trouble shooting.
If there is anything that our team can do whether it be order follow up, technical / installation support or explanation of our billing, please do not hesitate to contact us at any time.
Faye Jaramillo – 720-287-8426 (Inside Sales)
John Browne – 720-287-8431 (Applications)
Pat Sawyer – 720-287-8422 (Accounting)
Cynthia Boyd – 720-287-8433 (Sales)