90074225 MOPS-Q QTH Lamp Pow er Supplies
Page 19
4.3 LIGHT INTENSITY CONTROL
1.
The flux set point must be set first. There are two ways to set the flux set point:
A. AutoSet method:
i. Use
“Current” or “Power” mode to turn ignite the lamp first
ii. Press the horizontal menu button under
“Display” and select “Lamp Intensity”
using the external knob.
iii. Press the right most horizontal menu key under Setup until the vertical menu with
CoolTemp, Idle, and Autoset appears.
iv. Press the
“AutoSet” button, the system will automatically adjust the gain of the
flux amplifier and set the flux set point to be 90% of current flux reading
v. Turn off lamp
B. Manual method:
i.
Use
“Current” or “Power” mode to turn ignite the lamp first.
ii.
Press the horizontal menu button under
“Display” and select “Lamp
Intensity
” using the external knob.
iii.
Record this value. This value is to be used as the
“Flux Set” set point.
iii. If the recorded value shows value of 2.5uA, 25uA or 250uA or 2500uA,
this indicates that the flux reading has overflowed with existing gain of
flux amplifier. If this occurs, the Autoset Method described above should
be used.
iv.
Turn off the lamp.
v.
Press the horizontal menu key under
“Lamp Mode” and continue this
button until Intensity appears.
vi.
When Intensity appears, press the vertical menu button next to Flux Set.
Use the knob to change this value to 10% greater than the Flux Set point
just recorded.
Users who used the Manual Method described above to establish a Flux Set point can skip Steps
2 and 3 and proceed with pressing the LAMP button to operate the lamp.
2.
To change the lamp control mode, use the horizontal menu key under
“Lamp Mode” and
press
this
button
until
Intensity
appears.
3.
Once Intensity mode is selected, press the vertical menu key next to Flux Set and use the
knob to adjust this value. Press the LAMP button to ignite the LAMP.