Operation
3-10
3-9
DISPLAY TEST
By pressing “Enter” and the “Up” arrow, the entire display can be lit for several seconds. This feature
can be used to verify LED function.
3-10
BATTERY BACKUP
The senTorr uses a lithium battery and CMOS RAM for storage of all system parameters during power
outages or when powered down. Upon restoring power, the senTorr verifies the RAM content. If the
RAM is good, the parameters will remain as previously saved; if the RAM is corrupted, all parameters
will be reset to their default values.
If the ion gauge was on when power was lost, emission will NOT automatically be re-established
unless the TC Auto-On function was programmed to do so.
3-11
ACCESSING SECOND FILAMENT
See Section 3.1, step 8 “EMIS Key” for controlling dual filament tubes.