Datasheet

Supplemental measurement specifications
Table 7. Supplemental measurement specifications
Specification measurement Specification
DC voltage Measuring method: Sigma delta A-to-D converter
Input resistance: > 10 GΩ ± 2% range (Selectable 100 mV, 1 V ranges)
10 MΩ ± 2% range (typical)
Input protection: 1000 V on all ranges (HI terminal)
Resistance Measurement method: 2-wire or 4-wire Ohms
Open circuit voltage: Limited to < 2.8 V
Input protection: 1000 V on all ranges (HI terminal)
DC current Shunt resistance: 1 Ω for 10 mA, 100 mA
90 Ω for 100 μA, 1 mA
0.01 Ω for 1 A, 10 A
Input protection: Externally accessible at rear panel 0.4 A, 500 V fuse for I terminal
Internal 11 A, 1000 V fuse for 10 A terminal
Continuity/diode test Measurement method: Uses 0.5 mA 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
AC voltage Measurement method: AC coupled true-rms – measures the AC component with up to 400 VDC bias
any range
Crest factor: Maximum 3:1 at full scale
Input impedance: 1 MΩ ± 2% in parallel with < 100 pF of all ranges
Input protection: 750 V rms on all ranges (HI terminal)
AC current Measurement method: DC coupled to the fuse and current shunt, AC coupled true rms measurement
(measures the AC component only)
Shunt resistance: 1 Ω for 10 mA, 100 mA
0.01 Ω for 1 A, 10 A
Input protection: Externally accessible at rear panel 0.4 A, 500 V fuse for I terminal
Internal 11 A, 1000 V fuse for 10 A terminal
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