Horizon Hobby Spektrum MR4000, Instruction Manual, Page: 3 / 40

EN
Your new Spektrum™ MR4000 4-channel DSMR
®
Sport Surface receiver has
been designed and built to allow you to operate the product in many “wet condi-
tions”, including puddles, creeks, wet grass, snow and even rain.
While waterproof, this component has not been designed to be immersed in water
for long periods of time and should NOT be treated like a submarine. In addition,
most metal parts, including any screws and nuts, as well as the contacts in the
electrical cables, will be susceptible to corrosion if additional maintenance is not
performed after running in wet conditions.
To maximize the long-term performance of your Spektrum MR4000 and to keep
the warranty intact, it should only be used as described in the “Usage Conditions”
section of this manual. Additionally, the procedures described in the “Wet Conditions
Maintenance” section must be performed regularly if you choose to run in wet
conditions. If you are not willing to perform the additional care and maintenance
required, then you should not operate your vehicle in those conditions.
CAUTION:
Failure to exercise caution while using this product and comply with
the following precautions could result in product malfunction and/or void the
warranty.
General Precautions
• Read through the wet conditions maintenance procedures and make sure that
you have all the tools you will need to properly maintain your insert name of
component.
• Do not operate your Spektrum MR4000 where it could come in contact with
salt water (ocean water or water on salt-covered roads), contaminated or pol-
luted water. Salt water is very conductive and highly corrosive, so use caution.
Usage Conditions
Your Spektrum MR4000 will operate successfully in any of the following, individual-
usage scenarios:
• 2 hours continuous operation in dew-covered (damp) grass or vegetation.
• 2 hours continuous operation in heavy fog (95% humidity, saturated air,
condensing water).
• 1 hour continuous operation in light rain (< 0.10 in / 2.5mm per hour).
• 15 minutes continuous operation in heavy rain (> 0.30 in / 7.6mm per hour).
• 1 hour continuous operation in light sleet (< 0.10 in / 2.5mm per hour).
• 1 hour continuous operation in light snow (< 0.25 in / 6.35mm per hour).
• 45 minutes continuous operation in standing or running fresh water (the
water level should always remain below the vehicle frame), or constant
splashing water, without any immersion of waterproof component(s).
• 5 minutes continuous operation in standing or running fresh water (the water
level should never rise higher than 0.5 in (about 10 mm) above the vehicle
frame), constant splashing water, or frequent, intermittent immersion of
waterproof component(s).
• 1 hour continuous operation in damp sand, dirt, mud or snow (the material
level should always be below the vehicle frame), constant splatter without
any immersion or coverage of waterproof component(s).
Furthermore, when appropriate maintenance procedures (as described below) are
performed promptly following exposure, the insert name of component will remain
best protected from corrosion or other long-term, water-related damage.
Waterproof Component