
3.1 Presettings
LDC340 / Page 12
SW5
defines if the bias voltage is automatically switched on when switching on the
LDC340
bias voltage
SW5
off
up
auto on
down
Attention
Before activating this function make sure that the monitor diode
polarity is set correctly when switching on
(SW4 must be set correctly).
If the photodiode is forward biased with a voltage a current will flow
through it that could damage or even destroy it.
SW6
not used
SW7
defines if the laser current (!) is switched on automatically if the LDC340 is
switched on (option).
laser current
SW7
off
up
auto on
down
NOTE
This is an option that has to be ordered explicitly. This option can be
retrofitted.