Keithley 614
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The Keithley 614 is a digital electrometer.
please expand description
Key Specifications
| Voltage | ±200 mV to ±20 V in 3 decade ranges |
|---|---|
| Voltmeter input | >50 TΩ // 20 pF |
| Current | ±20 pA to ±2 mA in 9 decade ranges |
| Resistance | 2 kΩ to 200 GΩ FS in 9 decade ranges |
| Charge | 200 pC to 20 nC in 3 decade ranges |
| Resolution | 4½ digits |
| Max. input | 350 V in V, pA, nA, MΩ, GΩ, nC ranges; 75 V in μA and kΩ ranges |
| Connections |
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| Power | 105-125 or 210-250 VAC, 50-60 Hz, 5 VA typ. / 18 VA during battery charge |
Links
- Keithley 195A Multimeter
- Keithley 614 electrometer repair and calibration by FeedbackLoop @ YouTube
Internals
The 614 uses an Intersil ICL7135 DVM chip, no microprocessor.
Pictures
Components
Some Parts Used in the Keithley 614
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| Intersil ICL7135 | Monolithic integrated circuit | 4½ digit dual-slope DVM | Keithley 614 |