Agilent Technologies 41501A, User Manual

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Agilent 4155C/4156C User’s Guide Vol.1, Edition 11 8-9
Specifications
Hardware
VMU (Voltage Monitor Unit) Specifications
• Voltage Range, Resolution, and Accuracy
Grounded measurement mode
Differential measurement mode
• VMU supplemental information
Input impedance
≥
1 G
Ω
Input leakage current ≤ 500 pA (at 0 V)
Measurement noise typical 0.01 % of range (p-p). when the integration
time is 10 PLC.
Differential mode
measurement noise
typical 0.005 % of range (p-p). when the integration
time is short.
Voltage Range Meas. Reso.
Meas. Accuracy
a
a. Accuracy:
±
(% of reading value + offset value).
± 2 V 2 μ V ± (0.02 % + 200 μ V)
± 20 V 20 μ V ± (0.02 % + 1 mV)
Differential
Voltage
Range
Meas.
Reso.
Meas. Accuracy
a
a. Accuracy:
±
(% of reading value + offset value + common mode error).
Max.
Common
Mode
Voltage
±
0.2 V 0.2
μ
V
±
(0.03 % + 10
μ
V + 0.3
μ
V
×
Vi
b
)
b. Vi is the input voltage of VMU2 in volts.
±
20 V
±
2 V 2
μ
V
±
(0.02 % + 100
μ
V + 3
μ
V
×
Vi
b
)
±
20 V