Agilent Technologies E1326B Manual do Utilizador Página 191

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192 1326B/E1411B Multimeter Specifications Appendix A
Four-Wire Resistance
Input Characteristics
Measurement Characteristics vs. Range
Range
Source
Current
Maximum
Open Circuit
Voltage
Maximum
Allowable
Current
Source
Lead
Resistance
Maximum
Allowable
Common
Lead
Resistance
Maximum
Allowable
Offset Volts
For Offset
Compensated
Ohms
Default
Measurement
Settling Time
Default
Range
Function
Change
Settling
Time
256 488 µA 11.5 V 20 k 150 12 mV 0 0
2 k 488 µA 11.5 V 15 k 150 100 mV 0 0
16 k 61 µA 11.5 V 100 k 2 k 100 mV 0 0
131 k 61 µA 11.5 V 20 k 10 k 0.8 V 0 2 ms
1 M 7.6 µA 11.5 V 100 k 100 k 0.8 V 0 11 ms
Conditions: Settling times may need to be increased (programmably) if load capacitance is greater than 200 pF.
Resolution vs. Aperture (ohms)
Range 267/320 ms 16.7/20 ms 2.5 ms 100 µs 10 µs
256 0.06 m 0.25 m 1 m 8 m 15 m
2 k 0.5 m 2 m 8 m 60 m 125 m
16 k 4 m 15 m 60 m 500 m 1
131 k 30 m 125 m 500 m 4 8
1 M 0.25 m 1 4 30 64
Accuracy conditions for table below: Autozero on, one-hour warmup. Within 24 hours and ±1°C of
calibration temperature (module calibrated at 18°C to 28°C).
24-Hour Accuracy vs. Aperture ± (% of reading + ohms)
Range 267/320 ms 16.7/20 ms 2.5 ms 100 µs 10 µs
256 .015% + 10 m .015% + 10 m .015% + 10 m .05% + 50 m .05% + 50 m
2 k .015% + 20 m .015% + 20 m .015% + 20 m .05% + 150 m .05% + 200 m
16 k .015% + 200 m .015% + 200 m .015% + 200 m .05% + 1 .05% + 2
131 k .015% + 1 .015% + 1 .015% + 1 .05% + 8 .05% + 16
1 M .015% + 10 .015% + 10 .015% + 10 .05% + 60 .05% + 120
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