TM 5-6630-215-12
Figure 2-11.
Spectrophotometer Control and Indicators
Table 2-6. Spectrophotometer, Controls and Indicators
Control or
Key
Indicator
Function
1
Light Switch
Applies electrical power to the instrument when set to
the ON position. In the zero check position, the lamp is
turned off, allowing the instrument to be electronically
zeroed with no power applied to the photocell.
2-33