WattNode® Pulse Bidirectional Energy Meter by Socomec

Description

WattNode® Pulse Bidirectional Energy Meter

• The WattNode Pulse meter is an accurate, low cost, watt-hour transducer that measures both energy consumed and energy produced (bidirectional)
• The basic model has two pulse outputs, one for energy consumed and the other for energy produced
• Each pulse represents a certain quantity of energy (watt-hours)
• Many other pulse output configuration are available as options
• For a simple kWh metering system, a WattNode Pulse meter can be configured to output exactly one pulse per kilowatt-hour (kWh) of energy used
• The pulse output from the meter is connected to our Pulse Totalizer Display model LCDB-E
• This display register counts up the pulses and shows the total number of kWh used
• The output pulses from the WattNode meter can also be recorded using a data logger or other data acquisition device such as a building automation system
• These systems can calculate the average kW demand during a sample interval and can also provide TOU (time of use) data
• The pulse outputs of WattNode meters are optically isolated to provide 5000 volts protection from the AC power lines
• An optocoupler functions like mechanical on/off switch
• The pulse recording device connected to the meter applies a small DC voltage to the optocoupler switch to determine if it is open or closed
• Each opening and closing of the switch represents one pulse
• WattNode Pulse meters are available with a variety of pulse output options
• The basic meter is suitable for conventional energy measurement applications as well as for PV net metering, and other renewable energy applications
• Pulse meters are used for tenant sub-metering, branch circuit lighting, HVAC and equipment monitoring, and demand response applications
• The WattNode Pulse is available in standard and revenue-grade accuracy versions and can be used with any low voltage CT (0.333 Vac output)
• Revenue-grade system accuracy requires current transformers with Class 0.6 or better accuracy
• The ACTL series of current transforms is available with Class 0.6 or Class 0.3 accuracy; these CTs are ideal for revenue-grade billing purposes, SREC and state revenue grade requirements
• Certificates of calibration are available for WattNode Revenue meters and the ACTL revenue-grade current transformers
• The complete line of WattNode energy meters measure 1, 2, or 3 phases in 2, 3, or 4 wire configurations, with nominal voltages from 120 to 600 Vac 50/60 Hz
• Socomenc offers a complete line of low-voltage, spilt-core and solid core current transformers with rated currents from for 5 to 6000 amps