|
|
|
Range: 0°C - 50°C
Resolution: 0.1°C
Accuracy: +/- 0.2°C
The indoor thermometer is part of the indoor console. |
|
Range: 0% - 100%
Resolution: 0.1%
Accuracy: +/- 1%
The indoor humidity sensor is part of the indoor console. |
|
Resolution and Units. . . . . . . . . . . . . . . . . . . . . . . . . Current Data: 0.1°F or 1°F or 0.1°C or 1°C (user-selectabl
e) °C is converted from
°F rounded to the nearest 1°C
Historical Data and Alarms: 1°F or 1°C (user-selectable)
Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +32° to +140°F (0° to +60°C)
Sensor Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1°F (±0.5°C
THWS
Resolution and Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1°F or 1°C (user-selectable) °C is converted from °F rounded to the nearest 1°C
Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -90° to +165°F (-68° to +74°C)
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±4°F (±2°C) (typical)
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 to 12 seconds
Sources and Formulation Used . . . . . . . . . . . . . . . . . . . . United States National Weather Service (NWS)/NOAASteadman (1979) modified by US NWS/NOAA and Davis Instruments to increase range of use and allow for cold weather use
Variables Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instant Outside Temperature, Instant Outside Relative Humidity, 10-minute
Average Wind Speed, 10-minute Average Solar Radiation
Formulation Description . . . . . . . . . . . . . . . . . . . . . . . . . Uses Heat Index as base temperature, affects of wind and solar radiation are either added or subtracted from this base to give an overall effective temperature
|
|
Range from -76 to +54 °C, accuracy 10 - 12 sec.
Source . . . . . . . . . . . . . . . . . . . . . . . . . . World Meteorological Organization (WMO)
Equation Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WMO Equation with respect to saturation of moist air over water
Variables Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instant Outside Temperature and Instant Outside Relative Humidity
Outside Relative Humidity (sensor located in ISS)
Resolution and Units. . . . . . . . . . . . . . . . . . . . . . . . . 1%
Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 to 100% RH
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±2%
Drift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.25% per year
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 seconds to 1 minute |
|
Resolution and Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.01" Hg, 0.1 mm Hg, 0.1 hPa/mb (user-selectable)
Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.00" to 32.50" Hg, 410 to 820 mm Hg, 540 to
1100 hPa/mb
Elevation Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -999’ to +15,000’ (-600 m to 4570 m) (Note that console screen limits entry of lower elevation to -999’ when using feet as elevation unit.)
Uncorrected Reading Accuracy . . . . . . . . . . . . . . . . . . . . ±0.03" Hg (±0.8 mm Hg, ±1.0 hPa/mb) (at room temperature)
Sea-Level Reduction Equation Used . . . . . . . . . . . . . . . . United States Method employed prior to use of current “R Factor” method
Equation Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Smithsonian Meteorological Tables
Equation Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.01" Hg (±0.3 mm Hg, ±0.3 hPa/mb)
Elevation Accuracy Required . . . . . . . . . . . . . . . . . . . . . ±10’ (3m) to meet equation accuracy specification
Overall Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.03" Hg (±0.8 mm Hg, ±1.0 hPa/mb)
|
|
Resolution and Units. . . . . . . . . . . . . . . . . . . . . . . . . 1 mph, 1 km/h, 0.4 m/s, or 1 knot (user-selectable). Measured in mph, other units are converted from mph and rounded to nearest 1 km/hr, 0.1 m/s, or 1 knot.
Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 200 mph, 0 to 173 knots, 0 to 89 m/s, 0 to 322
km/h
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instant Reading: 2.5 to 3 seconds, 10-minute Average: 1
minute
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1 mph (1 kts, 1.5 km/h, 0.5 m/s) or ±5%, whichever is greater
|
|
Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 - 360°
Display Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . 16 points (22.5°) on compass rose, 1° in numeric display
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±3°
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 to 3 seconds
|
|
Resolution and Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.2 mm (1 mm at totals 2000 mm)
Daily/Storm Rainfall Range . . . . . . . . . . . . . . . . . . . . . . . 0 to 999.8 mm
Monthly/Yearly/Total Rainfall Range . . . . . . . . . . . . . . . . 0 to 6553 mm
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . For rain rates up 100 mm/hr): ±4% of
total or ± one tip of the bucket (0.2mm), whichever is greater.
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 to 24 seconds
Storm Determination Method . . . . . . . . . . . . . . . . . . . . . 0.5 mm begins a storm event, 24 hours without further accumulation ends a storm event |
|
Resolution and Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 W/m2
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 1800 W/m2
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5% of full scale (Reference: Eppley PSP at 1000 W/m2)
Drift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to ±2% per year
Cosine Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±3% for angle of incidence from 0° to 75°
Temperature Coefficient . . . . . . . . . . . . . . . . . . . . . . . . . . -0.067% per °F (-0.12% per °C); reference temperature = 77°F (25 °C)
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 seconds to 1 minute (5 minutes when dark) |
|
Resolution and Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 MEDs to 19.9 MEDs; 1 MED above 19.9 MEDS
Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 199 MEDs
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5% of daily total
Drift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to ±2% per year
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 seconds to 1 minute (5 minutes when dark) |
|
See tab "Blitzortung" on main site station number on blitzortung 2274 |
|
Manually measured when snow on ground, if snowing at night next morning! |
|
