Calibration - Keithley 220 Instruction Manual

Service Form
Model No.
Name and Telephone No.
Company
Serial No. Date
List all control settings, describe problem and check boxes that apply to problem.
Cl Intermittent
a IEEE failure
D Front panel operational
Display or output (check one)
cl Drifts
u Unstable
B Overload
0 Analog output follows display
P Obvious problem on power-up
0 All ranges or functions are bad
0 Unable to zero
0 Will not read applied input
0 Particular range or function bad; specify
0 Batteries and fuses are OK
0 Checked all cables
0 Calibration only
0 Data required
0 Certificate of calibration required
(attach any additional sheets as necessary)
Show a block diagram of your measurement system including all instruments connected (whether power is turned on or not).
Also, describe signal sowce.
Where is the measurement being performed? (factory, controlled laboratory, out-of-doors, etc.)
What power line voltage is used?
Ambient temperature?
Relative humidity? Other?
Any additional information, (If special modifications have been made by the user, please describe.)