THORLABS PM160T User Manual page 14

PM160(T)
Menus
Push Menu to scroll through the menu screens. Each time this button is pressed,
the next menu item appears. Return to the measurement screen by pressing the
ESC button .
Menu "Zero Adjust"
This function is used to compensate the photo diode's dark current (PM160) or
the thermal sensor's offset voltage (PM160T, PM160T-HP). Cover the sensor
aperture and press Run.
If the zeroing was carried out successful, the PM160(T) returns to normal opera-
tion, else the error screen appears:
12 © 2018 Thorlabs