Environmental Specifications; Accuracy And Temperature Effects; Table 1-2: Environmental Specifications - Aerotech PRO22SL Hardware Manual

Mechanical bearing, ball-screw stage
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PRO225SL/SLE Hardware Manual

1.1. Environmental Specifications

WARNING: Do not expose this product to environments or conditions outside of the
listed specifications. You could damage the equipment if you exceed the environmental or
operating specifications.
Table 1-2:
Environmental Specifications
Ambient
Temperature
Humidity
Altitude
Vibration
Protection
Rating
Use

1.2. Accuracy and Temperature Effects

The accuracy specification of series stages is measured 25 mm above the table with the stage in an
unloaded condition. The stage is assumed to be fully supported by a mounting surface meeting or
exceeding the specification in
The accuracy of the screw is a key element in the overall positioning accuracy of the SL stage. A scale
error can be expected if temperature of the screw differs from 20° C (68° F). The greater the
temperature difference, the greater the error. The temperature of the screw depends on the speed and
duty cycle of the stage. The faster the movement and higher the duty cycle, the more the stage accuracy
will be affected by heat. The thermal expansion coefficient of the screw is 11.7 ppm/°C.
SLE stages contain a linear encoder for direct feedback of the carriage position. The stage travel as seen
by the linear encoder will expand at the rate of 3.25 ppm/°C as the temperature of the encoder scale
deviates from 20°C.
The ThermoComp™ option is a hardware and software solution that uses the functionality of the
Automation1 or A3200 controller to mitigate the effects of changing temperature by detecting and
compensating for thermal changes. ThermoComp™ is effective at compensating for both self-heating
and environmental temperature changes.
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Operating: 10° to 35° C (50° to 95° F)
The optimal operating temperature is 20° C ±2° C (68° F ±4° F). If at any time the
operating temperature deviates from 20° C degradation in performance could
occur.
Storage: 0° to 40° C (32° to 104° F) in original shipping packaging
Operating: 20% to 60% RH
Storage: 10% to 70% RH, non-condensing in original packaging.
The stage should be packaged with desiccant if it is to be stored for an extended
time.
Operating: 0 m to 2,000 m (0 ft to 6,562 ft) above sea level
Contact Aerotech if your specific application involves use above 2,000 m or below
sea level.
Use the system in a low vibration environment. Excessive floor or acoustical
vibration can affect system performance. Contact Aerotech for information
regarding your specific application.
The PRO225SL/SLE stages have limited protection against dust, but not water. This
equates to an ingress protection rating of IP50.
Indoor use only
Section 2.3.
1.1. Environmental Specifications
15

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