Working Standard

Multifunction hand-held Working Standard of power and energy
for on site meter testing

The Working Standard is a precision single-phase (WS 2120) and three-phase (WS 2320) reference meter for electrical power and energy measurement, dedicated to on-site meters testing. The device can be used also as hand-held unit for local data exchange with multifunctional meters which permits local programming and data reading of multifunction meters.
The device is designed for operation in single-, two- and three-phase systems, where it evaluates and displays all individual quantities per phase and cumulative three-phase ones as well.

 Highlights
• Lightweight compact size
• Single-phase and three-phase versions, accuracy classes 0.2, 0.1, 0.05
• Color graphic display and alphanumerical keypad
• USB, RS-232 and optical interface for local data exchange with multifunctional meters according to IEC 62056-21
• Configuration and data stored in high capacity memory (min. 2 GB)
• Vector diagram and signal shape display (oscilloscope mode)
• Harmonics analysis in tabular and graphical format
• Two universal input channels for any combination of Voltage and Current probes for Power or CT / VT ratio measurement
• LED and TTL impulse outputs with programmable energy proportional meter constant or programmable frequency
• Enhanced internal database system for tested meters and measured results with search capabilities
• Enhanced self-adjusting optical scanning head
• Synchronous differential energy consumption measurement
• Optional wireless communication interface and wireless scanning head network for simultaneous testing of multiple delivery nodes
• Enhanced fast synchronization of measured data and configuration with PC
• PC software for MS Windows
• Transport case with high protection degree
• Optional portable printer for printing of results and actual display content
• Optional universal isolated input/output (relay, logic signal)
• Configurable user interface (regional and functional modifications)

 Available Models
Model Phases Class
WS 2120A 1 0.05
WS 2120B 1 0.1
WS 2120C 1 0.2
WS 2320A 3 0.05
WS 2320B 3 0.1
WS 2320C 3 0.2
 Download




WS 2320 with accessories


WS 2320
© 2011 Applied Precision Ltd.