Three-phase Power analyzer, 120 to 347 V L-N, 208 to 600 V L-L, 5 (6) A, RS485 Modbus RTU Pulse output

Description

WM15 is a power analyzer for single-, two- and three-phase systems. Depending on the model, WM15 is equipped with a static output (pulse or alarm), with a static output and a Modbus RTU communication port or with a static output and a M-Bus port. The self-powered version can be installed on systems up to 415 V L-L (400 V L-L for MID models), while the version with an auxiliary power supply can be installed on systems up to 600 V LL.

Main Benefits

• Enhanced readability. The backlit graphical display allows the size of the digits to be adapted to the displayed variable. The instantaneous values of the current are also shown by a bar graph to have the plant situation at a glance.
• Easy navigation. The setup and navigation of the pages are very intuitive thanks to the user interface with 4 mechanical push buttons. In addition, the slideshow function automatically displays the desired measurements in sequence without having to use the keypad.
• Quick setup. Wizard and wiring correction on first startup, UCS mobile app for setup via OptoProg and optical port are some of the advantages allowing a quick, guided and errorless installation and commissioning. UCS software is available for free download.
• Accurate measuring. It is compliant with the international accuracy standard IEC/EN62053-21, and the IEC/EN61557-12 performance requirements (active power and active energy). Optional high accuracy version: class 0.5S kWh according to IEC/EN62053-22.
• Fiscal metrology. WM15 configuration access can be locked and terminals can be sealed in case of a MID-certified model for fiscal metering.
• Installation flexibility. WM15 is suitable for single-phase, two-phase, three-phase and wild-leg systems with different voltage levels and grid frequencies used worldwide.
• Multi-language. Chinese and Korean versions are available as an alternative to the standard English user interface.

Main functions

• Measure main electrical variables and voltage and current harmonic distortions
• Measure active and reactive energy
• Measure apparent energy
• Measure load operating hours
• Transmit data to other systems via Modbus RTU or M-Bus
• Manage a digital output for pulses or alarm transmission
• Visualize measured variables on display
• Visualize current consumption via bar graph

Main features

• System and phase variables (V L-L, V L-N, A, W/var, VA, PF, Hz)
• Current and power (kW/kVA) demand calculation
• Simplified 4 push buttons user interface
• Optical port for easy configuration and diagnostic via OptoProg
• Digital output for pulse transmission or alarm
• Optional RS485 Modbus RTU or M-Bus (100 ms data refresh)
• Continuous sampling of each voltage and current
• Backlit matrix LCD display
• MID certified version
• cULus approved (UL 61010)
• Compliant with IEC/EN61557-12 performance requirements (active power and active energy)

Applications

WM15 can be installed in any switchboard to control energy consumption, main electrical variables and harmonic distortion. In panel boards, where typically three analogical ammeters are installed to give visual feedback of the system status, WM15 provides the same information on the matrix display using the bar graphs. When used to monitor a single machine, WM15 relates the energy consumption with the operating hours to schedule maintenance and detect faults. Moreover, the reset of partial counters allows for monitoring each machine cycle. Thanks to the MID certification, it can also be used for fiscal metrology.