Keithley SourceMeter 3A 2420, Service Manual

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Service Form
Model No. ______________ Serial No.___________________Date ________________
Name and Telephone No. _________________________________________________
Company ______________________________________________________________
List all control settings, describe problem and check boxes that apply to problem. _________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
❑
Intermittent
❑
Analog output follows display
❑
Particular range or function bad; specify
_______________________________
❑
IEEE failure
❑
Obvious problem on power-up
❑
Batteries and fuses are OK
❑
Front panel operational
❑
All ranges or functions are bad
❑
Checked all cables
Display or output (check one)
❑
Drifts
❑
Unable to zero
❑
Unstable
❑
Overload
❑
Will not read applied input
❑
Calibration only
❑
Certificate of calibration required
❑
Data required
(attach any additional sheets as necessary)
Show a block diagram of your measurement including all instruments connected (whether power is turned on or
not). Also, describe signal source.
Where is the measurement being performed? (factory, controlled laboratory, out-of-doors, etc.)_______________
__________________________________________________________________________________________
What power line voltage is used? ___________________ Ambient temperature? ________________________ °F
Relative humidity? ___________________________________________Other? ___________________________
Any additional information. (If special modifications have been made by the user, please describe.)
__________________________________________________________________________________________
__________________________________________________________________________________________
Be sure to include your name and phone number on this service form.