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OPERATING & MAINTENANCE TIPS
• When the
battery using the procedure on p.7.
• Do not immerse the RH650 in water or get water on it.
• Do not disassemble the unit. Opening the case voids the warranty.
• To avoid fouling the humidity/temperature sensor, do not operate the unit in very dusty
environments. Replace the dust cap protecting the sensor after each measurement session.
• Remove the battery if you do not expect to use the unit for several months or longer. This will
avoid potential leaks of battery acid that might damage or destroy the unit.
14
icon appears on the bottom row of the LCD, it's time to install a fresh "9V"
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