6 Specifications and Characteristics
102 U3402A User’s and Service Guide
Resistance (2-wire W and 4-wire W)
• Measurement method
• 2-wire Ohms or 4-wire Ohms
• Open-circuit voltage
• Limited to < +5 VDC
• Zeroing error
• 0.05 W or less (excluding test lead resistance) in each range when Rel operation is used
• Input protection
• 500 V on all ranges
• Response time
• Approximately 1.5 seconds for 12 MW and ranges below 12 MW
• Approximately 5 seconds for 40 MW
• Approximately 10 seconds for 120 MW
• Approximately 23 seconds for 300 MW
Diode/continuity
• Measurement method
• 0.83 mA ±0.2% constant current source, open-circuit voltage limited to < 5 V
• Test current
• Approximately 0.5 mADC
• Open-circuit voltage
• Limited to < +5 VDC
• Continuity threshold
• 10 W fixed
• Continuity level
• Approximately < +50 mVDC
Table 6 - 9 Supplemental measurement specifications (continued)
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