1 – 10
Operation
Never expose the SR475 and SR476 Laser Shutters to compressed
CAUTION
air or other compressed gas dusters, since they could potentially
damage the shutter mechanism.
Never touch or attempt to clean the shutter blade.
CAUTION
1.5.2
Magnetic field
The SR475 and SR476 Laser Shutters use a magnetic mechanism
and may not operate properly in the presence of a strong external
magnetic field.
1.5.3
Temperature
The SR475 and SR476 Laser Shutters are designed for operation in a
0
◦
C to 35
◦
C laboratory environment.
The internal thermal sensor will trip if the shutter head exceeds
a temperature of approximately 60
◦
C, as measured on the circuit
board. In this case, the head will declare a fault and go to the
Standby
state. See also
§
1.2.2.
The absolute maximum storage temperature of the shutter head is
90
◦
C. Above this temperature permanent damage can result.
1.5.4
Vacuum
The SR475 and SR476 Laser Shutters are not designed for use in a
vacuum environment. The shutter mechanism relies on convection
cooling and would overheat quickly unless active external cooling
were applied.
Also note that adhesives used in construction of the SR475 and SR476
Laser Shutters are not rated for vacuum compatibility.
1.5.5
Oxygen-rich environments
Because of the adhesives used in construction, the SR475 and SR476
Laser Shutters are not suitable for use in oxygen-enriched, pure
oxygen, or other similar environments.
1.6
Alternate speed modes
The SR475 and SR476 Laser Shutters are by default configured to
operate in
full-speed mode
, where the opening
/
closing time is fixed
at its minimum possible value. During the transition from one state
to the other, the shutter blade is guided along a pre-determined
trajectory between the two states, as discussed in
§
1.1.3.
SR475 and SR476 Laser Shutters
