Model 2450 Interactive SourceMeter® Instrument User's Manual
Section 10: Troubleshooting FAQs
2450-900-01 Rev. A / June 2013
10-3
You cannot combine the command sets.
As delivered from Keithley Instruments, the Model 2450 is set to work with the Model 2450 SCPI
command set.
If you choose the SCPI2400 command set, you will not have access to some of the extended ranges
and other features that are now available using the SCPI command set. In addition, some
Series 2400 code will work differently in the Model 2450 than it did in the earlier instrument. See
Model 2450 in a Model 2400 application for information about the differences.
To set the command set using the front panel:
1. Press the
MENU
key.
2. Under System, select
Settings
.
3. Select the button next to Command Set.
4. Select the command set.
5. You are prompted to reboot.
To set the command set using SCPI commands:
Send the command:
*LANG TSP
Replace
TSP
with
SCPI2400
if you are using code from earlier Series 2400 products.
Reboot the instrument after changing the command set.
To set the command set using TSP commands:
Send the command:
*LANG SCPI
Replace
SCPI
with
SCPI2400
if you are using code from earlier Series 2400 products.
Reboot the instrument after changing the command set.
Why am I getting a 5074 event code?
An interlock circuit is provided on the rear panel of the instrument. This circuit must be closed to
enable the Model 2450 to produce voltages greater than 38 V DC. If you try to assign a high-voltage
output and turn the source on when the interlock is not asserted, you see event code 5074, "Output
voltage limited by interlock."
The Model 2450 is provided with an interlock circuit that must be positively activated in
order for the high voltage output to be enabled. The interlock helps facilitate safe operation
of the equipment in a test system. Bypassing the interlock could expose the operator to
hazardous voltages that could result in personal injury or death.
