Keithley 614 Digital Electrometer

Keithley 614 Electrometer
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Keithley 614
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Specifications Other1
The Model 614 is an electrometer with 10-14 A sensitivity, and an input current less than 60fA at 23°. Voltage sensitivity is 10µV to 20V with an input impedance of greater than 50TO (5x10O. Resistance sensitivity of the Model 614 is from 1O to 2x1011O using the constant current technique.
 
Keithley 614 Features
  • 10-14A sensitivity
  • Current suppression
  • 5 x 1013 ohm input impedance
  • 4½-digit LED display
  • Battery/line power built-in
  •  
Keithley 614 Specs
Coulombs
Range Resolution
200 pC 10 fC
2 nC 100 fC
20 nC 1 pC
  • Input Bias Current: < 60 fA
  • Maximum Overload: 350V peak

 

Amps
Range Resolution
20 pA 10 fA
200 pA 100 fA
2 nA 1 pA
20 nA 10 pA
200 nA 100 pA
2 µA 1 nA
20 µA 10 nA
200 µA 100 nA
2 mA 1 µA
  • Input Bias Current: < 60 fA
  • Input Voltage Burden: < 200 µV
  • Maximum Overload: 350V peak on pA and nA ranges; 75V peak on µA and mA ranges

 

Volts
Range Resolution
200 mV 10 µV
2 V 100 µV
20 V 1 mV
  • Input Impedance: > 5 x 1013 ohm in parallel with 20pF
  • Maximum Overload: 350V peak

 

Ohms
Range Resolution
2 kohm 1ohm
20 kohm 10 ohm
200 kohm 100 ohm
2 Mohm 1 kohm
20 Mohm 10 kohm
200 Mohm 100 kohm
2 Gohm 1 Mohm
20 Gohm 10 Mohm
200 Gohm 100 Mohm
  • Maximum Open Circuit Voltage: 32V DC
  • Maximum Overload: 75V peak on kohm ranges; 350V peak on Mohm and Gohm ranges

 

General
  • Display: Five LED digits with appropriate decimal point, polarity, and overload indication
  • Current Suppress: Active in Current mode; allows correction for input currents on any given range
  • Conversion Time: 400ms
  • 2V Analog Output
  • Preamp Output
  • Maximum Common Mode Voltage: 500V peak
  • Connectors:
    Input: 2-lug triax
    Output: 5-way binding posts