To Upgrade The Firmware; To Zero The Instrument - HP 86140A Series User Manual

Using the Optical Spectrum Analyzer
The System Menus

To upgrade the firmware

To upgrade the firmware you must have the firmware upgrade disk set from
HP.
1 Press the front-panel System key.
2 Press the More System Functions .... softkey.
3 Press the Service Menu .... softkey.
4 Press the Firmware Upgrade .... softkey.
5 You are prompted for each disk in the firmware upgrade set. When the last disk
has been copied, the instrument will finish the installation process and restart.

To zero the instrument

1 Press the front-panel System key.
2 Press the More System Functions.... softkey.
3 Press the Service Menu.... softkey.
4 Press the Adv Service Functions.... softkey.
5 Press the Zero Now softkey.
The Zero Now function causes the auto zero function to run immediately. This
allows you to manually zero the instrument when the Auto Zero function is off.
The dark current of the photodetector is measured one time, and then the
resulting correction is applied to all subsequent measurements, for improved
amplitude accuracy.
3-50
Function
Miscellaneous functions
Power-on in last state
HP-IB address
Time display
HP logo display
Active function area assist
Active function area location
Printer interface
Factory Preset Value
Off
23
On
On
On
Upper right
Internal