FAQ Measuring Transducer, A2000
Why do primary values for current and voltage transformers as well as the upper power range value have to be specified when ordering power measuring transducers? 
What significance does the calibration factor have in laying out a measuring transducer?
How is cos phi measured?
What are the differences between power factor I and power factor II?
How is 4 quadrant power factor measurement performed?
Which factors need to be observed in laying out a cos phi measuring transducer?
What is the significance of the terms angle proportional (or angle linear) and cos phi proportional (or cos phi linear) in relation to cos phi transducers?
Measurements in distorted electrical systems?
Are your measuring transducers also suitable for 690 V electrical systems?
How is input voltage (nominal voltage) defined for power measuring transducers in 3-phase electrical systems?
How can power measuring transducers be recalibrated?
The DME4 changes its output signal when the ripple control frequency is applied. Why?
What is meant by calibration of the secondary side?
EM101: Reading Out Energy Meters
EM102: Connecting AC/DC Auxiliary Power
EM104: No Communication via RS 232
EM105: Can I select measured value resolution myself?
EM106: Kann der Synchroneingang mehrerer A2000 parallel geschaltet werden