In this section:
How do I display the instrument's serial number? .................. 15-1
How do I optimize performance? ............................................ 15-1
How do I upgrade the firmware? ............................................ 15-2
How do I use the digital I/O port? ........................................... 15-2
How do I trigger other instruments? ....................................... 15-3
How do I generate a GPIB service request? .......................... 15-4
How do I store measurements in nonvolatile memory? .......... 15-5
When should I change the output-off state? ........................... 15-5
How do I make contact check measurements? ...................... 15-6
How do I make low-current measurements? .......................... 15-6
How can I change the line frequency or voltage? ................... 15-8
Where can I get the LabVIEW driver? .................................... 15-9
What should I do if I get an 802 interlock error? ..................... 15-9
Why is the reading value 9.91e37? ........................................ 15-9
Where can I find the Model 2400 emulation script? ............. 15-10
How do I display the instrument's serial number?
The instrument serial number is on a label on the rear panel of the instrument. You can also access
the serial number from the front panel using the front-panel keys and menus.
To display the serial number on the front panel:
1. If the 2600B is in remote operation, press the EXIT (LOCAL) key once to place the instrument in
local operation.
2. Press the MENU key.
3. Use the navigation wheel to scroll to the SYSTEM-INFO menu item.
4. Press the ENTER key. The SYSTEM INFORMATION menu is displayed.
5. Scroll to the SERIAL# menu item.
6. Press the ENTER key. The 2600B serial number is displayed.
How do I optimize performance?
The primary factors that affect measurement accuracy and speed are:
• Warm-up: For rated measurement accuracy, allow the 2600B to warm up for at least two hours
before use.
• Speed setting: The speed setting affects both speed and accuracy. For more information, see
Speed (on page 2-50).
• Autozero: Autozero can be disabled to increase speed at the expense of accuracy (for more
information, see Disabling autozero to increase speed (on page 15-2)).