Installation 2
Installation, Operation, and Maintenance 55
Part 1, Installation
Procedure 8. Install the G2912A ALS Controller
Temperature and humidity ranges
The ALS system is designed for indoor use only in ordinary atmospheres.
After exposing the ALS controller to extremes of temperature or humidity,
allow 15 minutes for it to return to the recommended ranges.
Ventilation requirements
The controller is cooled by air flow which enters the front of the instrument
and exits through the rear. Do not obstruct air flow in the front or rear of the
instrument.
Temperature range -5 °C to 45 °C
Relative humidity range Maximum relative humidity of 80% for
temperatures up to 31 °C decreasing linearly to
50% relative humidity at 40 °C
Altitude range Up to 2000 m
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