The CheckSystem 2.1 S portable test system consists of an integrated single-phase current source and a single-phase electronic reference standard of accuracy class 0.05. Characteristic features of the CheckSystem 2.1 are its wide measuring range, high accuracy and high tolerance to unwanted external influences. The CheckSystem 2.1 S allows the monitoring of meter installations as well as analysis of the local mains conditions.
 
Functions 
Independent generation of single-phase current loading conditions for verification of meters using the incoming supply voltage 
Active, reactive and apparent energy measurement with integrated error calculator and pulse output 
Vector diagram, harmonics spectrum and wave form display for analysis of the mains conditions 
Voltage measurement 
Current measurement directly or with UCT clamp-on CT 
Active, reactive and apparent power measurement 
Phase angle, power factor and frequency measurement 
 
Advantages 
Easy verification of meters under precise load conditions, using the built-in, compact, current source 
Automatic operation using predefined load points without the need for an external PC
Internal memory for storage of measurement results and customer data 
Display of vector diagram for analysis of the supply conditions 
User-friendly system for data input and operation of source and reference meter 
The system may be used either as a stand-alone reference standard meter, or together with the integrated power source