Keithley 2520, Service Manual, Page: 135 / 137

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.