User manual LA CROSSE TECHNOLOGY WS-450B

[. . . ] For more information on the atomic clock and WWVB please see the NIST website at http://www. boulder. nist. gov/timefreq/stations/wwvb. htm. 1 W177. indd 1 9/15/07 10:21:32 AM Name and Functions of Buttons: Press Functions Hold 3 seconds CLOCK Read time, calendar and day-of-week Set Clock & Calendar ALARM UP Down CHANNEL MEM HEAT INDEX/ DEW POINT PRESSURE SNOOZE/LIGHT ZONE F/C Read alarm time; enable/disable alarm Alarm time setting 1 step forward in setting 1 step backward in setting Select indoor, Channel 1, 2, 3, auto scroll Read max/min temperatures & humidity Read Heat Index & Dew Point Toggle pressure unit hPa, inHg & mb Trigger snooze alarm & extend backlight Select the 4 U. S. time zones Toggle degree F & C unit Search for atomic time signal Slide Switch BACKLIGHT (AUTO/ HIGH / LOW / OFF) Display brightness setting (*** AUTO mode is recommended to adjust the brightness automatically) BATTERY & ADAPTER INSTALLATION Home Receiver Unit: Main Power Source: Plug in the 6. 0V adapter into the adapter socket at the back for basic operation and continuous backlight. Backup Power: Lift off the battery cover, install 3 pieces of AAA backup batteries according to the polarity indicated, close the battery cover. Remote Sensor: Loosen the screws on the battery door with a small screwdriver, insert 2 AAA batteries according to the polarity indicated. [. . . ] The left color graph represents the respective In/Out temperature, heat index or dew point of the current display mode. The higher the temperature & humidity, the more color portion of the color graph appears. Lower temperature & humidity show less color portion of the color graph. MAXIMUM / MINIMUM MEMORY Press MEM button repeatedly to view the maximum & minimum values of temperature, humidity, heat index or dew point readings. To clear the memory record, hold MEM button while the respective values are displaying on screen. 4 W177. indd 4 9/15/07 10:21:37 AM TEMPERATURE & HUMIDITY TREND INDICATOR The icons (arrow) will indicate Rising, Steady, Falling if the temperature or humidity change is more than 2 degrees F (or 1 degree C) within an hour. CLOCK & CALENDAR Press "CLOCK" to toggle display between time, calendar and day of the week. Using ""or "" to adjust and "CLOCK" to confirm, the following values can be set in sequence: 12/24hr format > Hr > Min > Yr > D/M or M/D format > Month > Date > EXIT U. S. time zone between Pacific "PA", Mountain "MO", Central "CE" and Eastern "EA". Hold "ZONE" to enter DST (Daylight Saving Time) setting mode. Press ""or "" to enable or disable the DST setting. ALARM SETTING Press "ALARM" to show alarm time and "AL. " icon will appear. Press ""or " " to enter the desired Hr/ Min values and press "ALARM" to confirm setting. SNOOZE & BACKLIGHT When alarm is going off, press SNOOZE/ LIGHT to trigger snooze alarm and "Zz" icon will appear. Press SNOOZE/LIGHT for an extended backlight if adapter is not connected. BACKLIGHT BRIGHTNESS CONTROL Select display brightness mode with the slide switch on the back casing. · AUTO: Display brightness is adjusted automatically according to the surrounding brightness detected by the light sensor located on the left of the Snooze/Light button. (Note: Auto mode is recommended for power saving, display lifetime and convenient purpose) (Important: Avoid having obstacle above the light sensor window for an accurate light sensing result. Otherwise, the display will turn dim even in bright environment) · High: Turn to high brightness mode · Low: Turn to low brightness mode · Off Turn off display backlight LOW BATTERY INDICATION Low battery indication is available for the home unit itself and all of the 3 remote channels. Replace the batteries and follow the setup procedure in this instruction manual. BATTERY DISPOSAL Replace only with the same or equivalent type recommended by the manufacturer. Please dispose of old, defective batteries in an environmentally friendly manner in accordance with the relevant legislation. 5 W177. indd 5 9/15/07 10:21:37 AM SPECIFICATIONS Indoor Temperature In/Out Humidity Remote sensor Channel Transmission Resolution Heat Index Indoor Outdoor Elevation Clock Power : +32 °F to +122 °F (0 °C to + 50 °C) : 20% - 99% H : -4 °F to +140 °F (-20 °C to +60 °C) : max. 3 remote sensors : up to 75M (246 ft. ) in open area, RF434 MHz : 0. 1 degree C for temperature, 1% for humidity : : 23°F to 122°F (-5°C to 50°C) : -4F to 140°F (-20C to 60°C) : -160 ft. [. . . ] This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Reorient or relocate the receiving antenna. · Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. [. . . ]