DIRIS A40 multi-functional grid monitoring instrument, the product features are as follows:

　　measurement

　　1: the current (3 I, n)

　　2: the phase voltage and line voltage (3 v, u)

　　3: the frequency (F)

　　4: in total, and each phase active, reactive power, apparent power (+ / - 3 ∑, plus or minus 3 Q, 3 S, plus or minus ∑ P, plus or minus ∑ Q, ∑ S)

　　5: in total, and each phase the power factor

　　Average and maximum

　　6: the biggest electricity (3 I, In)

　　7: the total active and reactive power, apparent power (plus or minus ∑ ∑ Q, the) ∑ S

　　Power quality value:

　　9: up to 51 times of harmonic distortion of voltage and current (THD, 3 I, the In, 3 v, 3 u)

　　measurement

　　110: four quadrant of active, reactive power, apparent power degree of measurement (+ kWH, + Kvarh, kVAh)

　　monitoring

　　1:2 a settable pulse output (type, amplitude, width)

　　2: use JBUS/MODBUS protocol RS485

　　3: use PROFIBUS DP protocol RS485

　　4-2 the analog output can be set up

　　5-2 pulse output is used for monitoring, 2 is used for measuring input pulse