The WM30-96 offers enhanced faster communications for building automation networks, along with superior functions such as load monitoring measurement and comprehensive alarm management; all in a compact plug-and–play modular format that streamlines installation and simplifies inventory management.Starting with a base unit that provides the display, touch-panel, power supply and measurement inputs, users can then add up to three slimline modules to the rear for alarms, pulse outputs, analogue I/O and data communications interfaces. It’s the first modular power analyser to provide BACnet-IP communication.
Applications run from cost allocation and control, through complex cost and power analysis, to advanced energy and power analysis for solar energy and power generation.
A mono LCD occupies much of the base unit’s 96mm-square frontage. All necessary information is available at a glance on the front panels customisable home page, which is readily configured by the user. Values of actual vs. installed power are displayed continuously to provide immediate alerts to potential power overloads.
The WM30-96 offers high accuracy for energy metering together with 10 digits for total energy counting, ensuring ideal performance for medium and high voltage applications. High contrast, white backlighting and wide viewing angles ensure that information is easy to see from any position.
Touch panel technology gives major advantages over traditional push-buttons for selecting from the four main variable areas: energy metering; current-voltage-frequency metering; power and power-factor metering; and harmonic analysis. FFT harmonic analysis is performed up to the 32nd harmonic (current and voltage), ensuring dependable measurements for load control and alarming. There are four freely configurable virtual alarms and a real time clock function is built in.
The base unit is powered by a universal 18 to 60 VAC/DC or 90 to 260 AC/VDC supply and front protection is provided to IP65, NEMA4x and NEMA12 standards. Carlo Gavazzi’s use of advanced component technology has resulted in space-saving behind the panel of up to 30 percent compared with competing analysers.
Whilst the base module alone acts as a simple monitoring device, the meter is completed by stacking low-profile modules on the rear of the base unit. Up to three flat modules can be added: one each of type A, B and C.
Dual channel relay output (SPDT) and dual channel static output (AC/DC Opto-Mos) modules are type A. Type B designates analogue outputs including a dual channel 20mA current module and dual channel 10V DC voltage device. Data communications facilities are added using type C modules: currently available are a fast RS485/RS232 serial port, Modbus over Ethernet TCP/IP interface and uniquely a BACNet-IP port. Depth behind the panel is just 50mm with a single option module.
As with other Carlo Gavazzi energy meters and analysers, the WM30-96 carries CE marking and UL certifications.
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