Specifications 6
34405A User’s and Service Guide 137
Continuity / Diode Test
• Measurement Method:
• Uses 0.83mA ± 0.2% constant current source, < 5V open circuit voltage
• Response Time:
• 70 samples/second with audible tone
• Continuity Threshold:
• 10Ω fixed
• Input Protection:
• 1000V (HI terminal)
Temp era tur e
• Measurement Method:
• 2-wire Ohms measurement of 5kΩ thermistor sensor (YSI 4407) with computer conversion
• Auto-ranging measurement, no manual range selection
• Input Protection:
• 1000V (HI terminal)
Measurement Noise Rejection
• CMR (Common Mode Rejection) For 1kΩ unbalance LO lead
• DC 120 dB
• AC 70 dB
• NMR (Normal Mode Rejection) For 60 Hz (50 Hz) ± 0.1%
• 5½ digits 65 dB (55 dB)
• 4½ digits 0 dB
AC Voltage
• Measurement Method:
• AC coupled true-rms - measure the AC component with up to 400 VDC bias any range
Ta ble 2 8 Supplemental Measurement Specifications
34405A users guide.book Page 137 Saturday, September 2, 2006 3:38 PM
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