Keithley 195A: Difference between revisions
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|summary=5½-digit TRMS digital multimeter | |summary=5½-digit TRMS digital multimeter | ||
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|caption=Keithley 195A | |caption=Keithley 195A | ||
|introduced=1984 | |introduced=1984 |
Revision as of 04:11, 20 May 2024
The Keithley 195A is a 5½-digit LED True-RMS, auto-ranging digital multimeter. It features a standard GPIB interface. Current and True RMS ranges are optional (Opt. 1950).
Key Specifications
Voltage (DC) | 20 mV to 1000 V full scale in decade ranges; >1 GΩ input resistance (10 MΩ in 20 V and above ranges) |
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Voltage (AC) | 200 mV to 700 V full scale in decade ranges; 2 MΩ // 75 pF; 250 kHz; True RMS; Crest factor <3:1 |
Current (DC) | 20 μA to 2 A full scale in decade ranges (Option 1950) |
Current (AC) | 200 μA to 2 A full scale in decade ranges (Option 1950); True RMS; Crest factor <3:1 |
Resistance | 20 Ω to 20 MΩ full scale in decade ranges, 2- or 4-terminal |
Temperature | –200 °C to +630 °C using a PT-100 RTD sensor |
Pictures
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Internal view, unit with Option 1950 board (bottom left)
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Internal view, unit with Option 1950 board (bottom left)
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Internal view, Option 1950 board flipped up
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Internal view of main board under option/shield
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Internal view towards the rear of the unit