THORLABS ITC502 Operation Manual page 26

1.8 Pre-settings
SW4 defines if the bias voltage is automatically switched on:
Before activating this function make sure, that the monitor diode
If the monitor diode is forward biased with a voltage the resulting
current may damage or even destroy the monitor diode (= the laser
SW5 defines whether the laser diode temperature window protection is on or off,
indicated by the LED WIN in the field SETUP:
SW6 defines which potentiometer for the TEC current is active:
ITC500 / page 18
SW4
up
down
Attention
polarity is set correctly when switching on
(SW4 must be set correctly).
module).
SW5
up
down
SW6
up
function
bias off
bias on
function
WIN off
WIN on
function
VAR