T&D RTR-71 User Manual

Also see for RTR-71: User manual

4About TR-3220, the standard temp./humidity sensor for RTR-72This sensor is not waterproof.Use the sensor only within the measurable temperature and humidity range(Temperature: 0 to 50 , Humidity: 10 to 95%RH)The unit may give an error in humidity value if there is a rapid change oftemperature. However, the value will return to normal after the sensortemperature stabilizes.The temperature/humidity sensor cable cannot be extended.When the sensor is not used, put it in the attached plastic bag with a dryingagent and keep it in a cool, dark place at 5 to 25 and 30%RH or less.Please make sure that the external sensor jack is securely inserted into themain unit.This sensor cannot be used with RTR-71.Notices About Placement and LocationA sudden change in widely different temperature environments may causecondensation to occur. Please use the unit in areas with a temperaturerange of 0 to 50 and a humidity range of 10 to 90%RH (withoutcondensation).Do not use, store or leave the unit in areas that are prone to direct sunlightor extremely high temperature or humidity. If the unit's internal temperaturerises too high, it may cause fire or other malfunctions to occur.Poisonous gases and chemicals may cause the unit to corrode. Also,poisonous substances coming in contact with the unit may cause damageor harm to people and animals. Please do not use the unit in environmentssubject to or influenced by poisonous gases or chemicals.Direct vibrations from machinery may cause connections to be loosenedand subsequent malfunction. Please use in stable areas.Do not place in or near areas subject to strong magnetic forces.