Keithley 2000 Calibration Manual

Miscellaneous calibration commands
Miscellaneous commands perform calibration functions such as programming the calibration
code and date. These commands are discussed in detail in the following paragraphs.
:CODE (:CALibration:PROTected:CODE)
Purpose To program the calibration code or password so that you can perform the cal-
ibration procedures.
Format :cal:prot:code '<char_string>'
Parameter Up to an 8-character string including letters and numbers.
Description The :CODE command enables the Model 2000 calibration procedures when
performing these procedures over the bus. In general, this command must be
sent to the unit before sending any other comprehensive or manufacturing
calibration command. The default calibration code is KI002000.
Notes • The :CODE command should be sent only once before performing either
the comprehensive or factory calibration. Do not send :CODE before each
calibration step.
• To change the code, first send the current code, then send the new code.
Example :CAL:PROT:CODE 'KI002000' Send default code of KI002000.
:COUNt?
(:CALibration:PROTected:COUNt?)
Purpose To determine how many times the Model 2000 has been calibrated.
Format
:cal:prot:coun?
Response <n> Calibration count.
Description The :COUNt? command allows you to determine how many times the Model
2000 has been calibrated.
Note Use the COUNt? command to help you monitor for unauthorized calibration
procedures.
Example :CAL:PROT:COUN? Request number of times the unit has been
calibrated.
3-6 Calibration Command Reference

Keithley 2000 Specifications

General

Digits	6.5
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	100 Ω to 100 MΩ
Connectivity	IEEE-488 (GPIB)
Display Type	VFD