Keithley 199 Instruction Manual page 188

Service Form
Model No. Serial No.
Name and Telephone No.
Company
List all control settings, describe problem and check boxes that apply to problem.
Date
ci Iiklittent
0~ &dog output follows display
0 Particular range or function bad; specify
0 IEEEfailure 0 Obvious problem on power-up
0 Batteries and fuses are OK
c]I Fmnt panel operational B AlI raiges or functions are bad
0~ ?hecked all cables
Display or output (check one)
c;I Drifts
0 Unable to z&
0 Unstable 0 Will not read applied inp&t
0 Overload
0 Certifi&te ofCalibration required
(attach any additional sheets as necessary)
~~
Show a block diagram of your measurement system inclujing all instrumen&~connected (whether power is turned on or not).
Also, describe signal source.
Where is the measurement being performed? (factory, control&d laboratory, out-of-doors, etc.)
What power line voltage is used?
Ambient temperature?
Relative humidity? OhI?
Any additional information. (If special modifications have been made by the uses please describe.)
"F