34410A/11A User’s Guide 127
Specifications 5
Voltage Transfer Accuracy ( typical )
Frequency Error
10 Hz to 300 kHz (24 hour % of range + % of reading)/5
Conditions: - Sinewave input only using slow filter.
- Within 10 minutes and ±0.5 °C.
- Within ±10% of initial voltage and ±1% of initial frequency.
- Following a 2–hour warm–up.
- Fixed range between 10% and 100% of full scale (and <120 V).
- Measurements are made using accepted metrology practices
True RMS AC Voltage
Measurement Type AC–coupled True RMS. Measures the AC component of the input.
Measurement Method: Digital sampling with anti–alias filter.
AC Common Mode Rejection
70 dB For 1 k
W
unbalanced in LO lead and <60 Hz. ±500 V peak maximum.
Maximum Input: 400 Vdc, 1100 Vpeak
Input Impedance: 1 MW ± 2%, in parallel with <150 pF
Input Protection: 750 V rms all ranges
True RMS AC Current
Measurement Type: Directly coupled to the fuse and shunt.
AC–coupled True RMS measurement (measure the AC component only).
Measurement Method: Digital sampling with anti–alias filter.
Maximum Input: The peak value of the DC + AC current must be <300% of range.
The RMS current <3 A including the DC current content.
Shunt Resistor: 0.1 W for 1A, 3A,
2 W for 10 mA 100 mA,
200 W for 100 uA, 1 mA
Input Protection: Externally accessible 3A, 250 V fuse
Crest Factor and Peak Input
Crest Factor: For <10:1 errors included.
Limited by peak input and 300 kHz bandwidth.
Peak Input: 300% of Range. Limited by maximum input
Overload Ranging Will select higher range if peak input overload is detected during
auto range. Overload is reported in manual ranging.
Settling Considerations
Default delays are selected to give first reading right for most measurements. The input blocking RC
time constant must be allowed to fully settle before the most accurate measurements are possible
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