The PWS 2.3 PLUS Portable Working Standard is a three-phase portable electronic meter test unit, used for testing single and three-phase electricity meters on site. The PWS2.3 PLUS allows checking of all meter installation parameters and associated circuits. The PWS 2.3 PLUS, with integrated instrument transformer test functions, is available in accuracy classes 0.1 or 0.2. The unit can be used either with a direct connection in the range of 1 mA ... 12 A, or by using a set of 3 active 100A error compensated clamp-on CT’s (included in the standard accessories set) in the range 10 mA …100 A. It is therefore possible to easily and accurately measure both CT and direct connected meters. The unit can be powered either from the measuring circuit or from an auxiliary single-phase supply.
Advantages:
Precision test equipment for AC values in the 45 Hz to 66 Hz frequency range
Wide measuring range with auto ranging
Display of vector diagram for analysis of mains conditions and meter connections
Measurements of wave forms and harmonics with display
Easy detection of circuit connection faults
Data memory for test results and customer data
Small dimensions and light in weight
Serial interface for data transfer (RS 232)
Function:
Active, reactive and apparent energy measurement for singlephase and three-phase, 3- or 4-wire, circuits with integrated error calculator
Impulse output for energy (galvanic isolated)
Registration of active, reactive and apparent energy for register testing
Active, reactive and apparent power measurements
Current and voltage measurements
Power factor measurements
Frequency measurements
Burden measurement of Current Transformer (CT) and Potential
Transformer (PT)
Ratio testing of Current Transformer (CT)
Ratio testing of Potential Transformer (PT) (option)
