Keithley 2000 Calibration Manual

:INIT (:CALibration:PROTected:INITiate)
Purpose To initiate comprehensive and factory calibration procedures.
Format
:cal:prot:init
Parameter None
Description The :INIT command enables Model 2000 calibration when performing these
procedures over the bus. This command must be sent to the unit after sending
the :CODE command, but before sending any other DC, AC, or manufactur-
ing calibration command.
Note The :INIT command should be sent only once before performing either com-
prehensive, DC, AC, or factory calibration. Do not send :INIT before each
calibration step.
Example :CAL:PROT:INIT Initiate calibration.
:LOCK
(:CALibration:PROTected:LOCK)
Purpose To lock out comprehensive or manufacturing calibration.
Format
:cal:prot:lock
Parameter None
Description The :LOCK command allows you to lock out both comprehensive and man-
ufacturing calibration after completing those procedures. Thus, :LOCK per-
foms the opposite of enabling calibration with the :CODE command.
Note To unlock comprehensive calibration, send the :CODE command. To unlock
manufacturing calibration, hold in the OPEN key while turning on the power.
Example :CAL:PROT:LOCK Lock out calibration.
:LOCK?
(:CALibration:PROTected:LOCK?)
Purpose To read comprehensive calibration lock status.
Format
:cal:prot:lock?
Response 0 Comprehensive calibration locked.
1 Comprehensive calibration unlocked.
Description The :LOCK? query requests status from the Model 2000 on calibration
locked/unlocked state. Calibration must be enabled by sending the :CODE
command before calibration can be performed.
Example :CAL:PROT:LOCK? Request cal lock state.
Calibration Command Reference 3-7

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