B&K Precision 393 - Manual - Manual (Page 23)

23
AC Volts (True RMS)
Range Resolution
Accuracy
(45 Hz - 2 kHz) / HFR2
Input
Impedance
600 mV 0.01 mV +(1.0% rdg + 20 dgt)(1)
+(1.5% rdg + 20 dgt)(2)
10 MΩ
6 V 0.1 mV 11 MΩ
60 V 1 mV
+(1.0% rdg + 20 dgt)(1)
+(1.5% rdg + 20 dgt)(2)
+(2.0% rdg + 20 dgt)(3)
10 MΩ
600 V 10 mV 10 MΩ
750 V 100 mV +(2.0% rdg + 20 dgt)(4) 10 MΩ
Range Resolution
Accuracy
(45 - 60 Hz) / HFR1
Input
Impedance
600 mV 0.01 mV
+(2.0% rdg + 20 dgt)
10 MΩ
6 V 0.1 mV 11 MΩ
60 V 1 mV 10 MΩ
600 V 10 mV 10 MΩ
750 V 100 mV 10 MΩ
AC+DC Volts (True RMS)
Range Resolution Accuracy (45 Hz - 2 kHz)
Input
Impedance
600 mV 0.01 mV
+(1.5% rdg + 30 dgt)(1)
+(2.0% rdg + 30 dgt)(2)
10 MΩ
6 V 0.1 mV 11 MΩ
60 V 1 mV
+(1.0% rdg + 30 dgt)(1)
+(2.0% rdg + 30 dgt)(2)
+(2.5% rdg + 30 dgt)(3)
10 MΩ
600 V 10 mV 10 MΩ
750 V 100 mV +(2.5% rdg + 30 dgt)(4) 10 MΩ
(1) For frequency range 45 Hz to 500 Hz.
(2) For frequency range 500 Hz to 1 kHz.
(3) For frequency range 1 kHz to 2 kHz.
(4) For frequency range 45 Hz to 1 kHz.
Crest factor: 3 at full scale and 6 at half scale
AC Coupled True RMS specified from 2% to 100% of range
HFR1 (High Frequency Reject): >1 kHz
HFR2 (High Frequency Reject): >100 kHz
Peak hold accuracy: +(3.0% rdg + 500 dgt) for frequency 45 Hz to
500 Hz at 60 V AC to 750V AC
Overload protection: 1000 V DC or 750 V AC RMS