Keithley 616: Difference between revisions

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|image=Keithley 616 1.jpeg
|image=Keithley 616 1.jpeg
|caption=Keithley 616 frontal view
|caption=Keithley 616 frontal view
|introduced=(?)
|introduced=1975
|discontinued=(?)
|discontinued=(?)
|designers=
|designers=
|manuals=
|manuals=
* [[Media:Keithley 28039.pdf|Keithley 616 Manual]]
* [[Media:Keithley 28039.pdf|Keithley 616 Manual]] (1980)
}}
}}
The '''Keithley 616''' is a digital electrometer.  
The '''Keithley 616''' is a digital electrometer.  
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''please expand description''
''please expand description''


{{MissingSpecs}}
{{BeginSpecs}}
{{Spec | Voltage ranges    | ±10 mV to ±100 V in decade ranges}}
{{Spec | Voltmeter input  | > 2×10<sup>14</sup> Ω // 20 pF }}
{{Spec | Current ranges    | ±10<sup>-13</sup> A to ±100 mA in 13 decade ranges }}
{{Spec | Resistance ranges | 1 kΩ to 10<sup>14</sup> Ω FS in 12 decade ranges }}
{{Spec | Charge ranges    | ±10<sup>-12</sup> C to ±10<sup>-5</sup> C in 8 decade ranges }}
{{Spec | Resolution        | 3½ digits (1999 counts); all nominal ranges have overrange capability to 1.999× }}
{{Spec | Connections      |
* Input: 2-lug [[triaxial connector]]
* Output: Unity gain output, 4 mm binding posts (equal to input voltage within 20 ppm for output currents of 1 mA or less
* Internal BCD outputs for 6162 Isolated Output }}
{{Spec | Power | 90-125 or 180-250 V<sub>AC</sub>, 50-60 Hz, 9 W }}
{{Spec | Options |
* Model 6162 Isolated Output/Control provides isolated BCD outputs, remote controls, and remote programming lines
}}
{{EndSpecs}}
 
==Links==
* [https://www.eevblog.com/forum/testgear/keithley-616-teardown/ Keithley 616 Teardown thread @ EEVBlog Forum] (nice internal photos, mention of replacing the Fairchild SL35155 chip with an [[Motorola 6800|68HC11 microcontroller]])
* Keithley 616 input stage replacement with MOSFET opamp: [https://www.eevblog.com/forum/repair/keithley-616-electrometer-input-stage-replacement/ Thread @ EEVBlog Forum] / [https://github.com/faeboli/Keithley_616 Github project]
* USB interface for Keithley 616 based on Arduino Micro, using 6162 interface connections: [https://www.eevblog.com/forum/testgear/usb-interface-for-keithley-616-electrometer/ Thread @ EEVBlog Forum] / [https://github.com/an-ven/K616-USB-Interface Github project]


==Pictures==
==Pictures==
<gallery>
<gallery>
Keithley 616 operating.jpg
Keithley 616 1.jpeg
Keithley 616 1.jpeg
Keithley 616 2.jpeg
Keithley 616 2.jpeg
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Keithley 616 4.jpeg
Keithley 616 4.jpeg
</gallery>
</gallery>
==Components==
{{Parts|Keithley 614}}


[[Category:Keithley]]
[[Category:Keithley]]
[[Category:Electrometers]]
[[Category:Electrometers]]

Latest revision as of 02:49, 13 August 2024

Keithley 616
Electrometer
Keithley 616 frontal view

Produced from 1975 to (?)

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Keithley 616 is a digital electrometer.

please expand description

Key Specifications

Voltage ranges ±10 mV to ±100 V in decade ranges
Voltmeter input > 2×1014 Ω // 20 pF
Current ranges ±10-13 A to ±100 mA in 13 decade ranges
Resistance ranges 1 kΩ to 1014 Ω FS in 12 decade ranges
Charge ranges ±10-12 C to ±10-5 C in 8 decade ranges
Resolution 3½ digits (1999 counts); all nominal ranges have overrange capability to 1.999×
Connections
  • Input: 2-lug triaxial connector
  • Output: Unity gain output, 4 mm binding posts (equal to input voltage within 20 ppm for output currents of 1 mA or less
  • Internal BCD outputs for 6162 Isolated Output
Power 90-125 or 180-250 VAC, 50-60 Hz, 9 W
Options
  • Model 6162 Isolated Output/Control provides isolated BCD outputs, remote controls, and remote programming lines

Links

Pictures

Components

Some Parts Used in the Keithley 614

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