Agilent Technologies DC140 Guía de usuario Pagina 129

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Specifications 4
34450A User’s Guide 109
Continuity / Diode Test
Measurement Method:
Uses 0.5 mA ± 0.2% constant current source
Response Time:
Continuity : 165 samples/second with audible tone
Diode : 190 samples/second with audible tone
Continuity Threshold:
10 Ω fixed
Input Protection:
1000 V (HI terminal)
Temperature
Measurement Method:
2-wire Ohms measurement of 5 kΩ thermistor sensor (YSI 4407) with computer conversion
Auto-ranging measurement, no manual range selection
Input Protection:
1000 V (HI terminal)
Measurement Noise Rejection
CMR (Common Mode Rejection) for 1 kΩ unbalance LO lead
DC 140 dB
AC 70 dB
NMR (Normal Mode Rejection) for 60 Hz (50 Hz) ± 0.1%
Slow mode 5½ digits 90 dB
Medium mode 4½ digits 55 dB
Fast mode 4½ digits 0 dB
Table 4- 7 Supplemental measurement specifications (continued)
34450A UG.book Page 109 Tuesday, July 23, 2013 2:43 PM
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