Optoma ZH520 User Manual page 20

SETUP AND INSTALLATION
Effective range
Infra-Red (IR) remote control sensor is located on the top and front sides of the projector. Ensure that the remote
control is held at an angle 30 degrees perpendicular to the projector's IR remote control sensor to ensure correct
functionality. The distance between the remote control and the sensor should not be longer than 6 meters (19.7 feet).
‡ Make sure that there are no obstacles between the remote control and the IR sensor on the projector
that might obstruct the infra-red beam.
‡ Make sure the IR transmitter of the remote control is not being shined on directly by sunlight or
fluorescent lamps.
‡ Please keep the remote controller at least 2m away from fluorescent lamps or it may malfunction.
‡ If the remote control is close to Inverter-Type fluorescent lamps, it might become ineffective from time
to time.
‡ If the remote control and the projector are within a very short distance of one another, the remote
control might become ineffective.
20 English
Approx. ± 15°
Approx. ± 15°