Keithley DMM6500 User Manual

Section
4: TSP command reference DMM6500 6½-Digit Multimeter with Scanning
Calibration and Adjustment Manual
4-6 DMM6500-905-01 Rev. E June 2021
cal.lock()
This function prevents access to instrument calibration.
Type TSP-Link accessible
Affected by Where saved Default value
Function
Yes
Usage
cal.lock()
Details
Calibration data is locked during normal operation. To perform calibration, you must unlock
calibration.
This command does not save calibration data.
Calibration data is lost if it is you do not save it before sending cal.lock(). Use cal.save() to
save the data.
An error is generated if this command is issued when calibration is already locked.
Example
cal.unlock("KI000CAL")
-- Perform operations to generate the calibration data
cal.save()
cal.lock()
Unlock the calibration for the instrument using the default password.
Save the calibration data.
Lock the calibration data.
Also see
cal.save() (on page 4-8)
cal.unlock() (on page 4-9)

Keithley DMM6500 Specifications

General

Resolution	6.5 digits
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
DC Current Range	10 µA to 10 A
AC Current Range	10 µA to 10 A
Temperature Range	-200 °C to 1820 °C
Display	5-inch capacitive touch screen
Resistance Range	100 MΩ
Frequency Range	3 Hz
Sampling Rate	1 MS/s
Connectivity	USB, LAN, GPIB (optional), TSP-Link
Memory	7 million readings