Bathgate Weather uses an Oregon Scientific WMR928/NX Weather Station and was first installed late December
2006, with live weather recording commencing on the 6th February 2007. Data prior to the live recording was
stored via a data-logger at 5min intervals. On the 23rd February 2008 two additional sensors were added to
the station. A ground temperature probe to measure the temperature at grass level and a secondary temperature
/ humidity sensor, primarly as a backup to the main temperature sensor.
The station hardware now consists of six separate wireless sensors which transmit data back to a control
console. The console sends the data received from the sensors, to an adjacent computer (running 'Weather
Display' software) dedicated to the task of recording the data and updating the web pages hosted on a
remote third party web server. Data is also stored in the data-logger at 5min intervals as a backup. Both
the control console and data-logger have battery backup in the event of a power failure.
With the exception of hardware and/or software failures, the weather station runs 24 hours a day 365 days
a year.
The four main meterological sensors that make up the station consist of a rain gauge (self-tipping), an
external thermometer / hygrometer (for temperature and relative humidity) housed in a small passive radiation
shield, a combined anemometer / wind vane for measuring wind speed and direction (installed above the roof
line approximately 10m above the ground) and an internal barometer / thermometer and hygrometer which is
primarily used to report on air pressure but also reports on indoor temperature and humidity. The secondary
temperature / humidity sensor is housed outside the stevenson screen. This can generate a difference in
the humidity readings between the sensors.
The three main external sensors are each attached to their own transmitter module containing a small solar
panel for power. These transmitter modules also contain a small rechargeable cell to provide power in the
absence of sunshine, along with 2 AA cells for backup purposes. The two additional sensors are powered
soley by 2 AA cells within each unit without the addition of solar power.
Data is transmitted from the sensors approximately once every 45 seconds, with the exception of the
anemometer/wind vane which transmits back the console every 14 seconds.
The location of each of the sensors has been selected to provide the best possible readings within the
boundaries permitted by the surrounding local environment.
The following specifications detail the operating parameters of the weather station:
Temperature, Indoor -5°C to 50°C / Outdoor -20°C to 60°C (+/- 0.1°C)
Relative Humidity, 2% to 98% RH (+/- 1% RH)
Barometer, 795mb to 1050mb (+/- 1mb)
Wind Speed, 0mph to 125mph (+/- 0.4mph)
Wind Direction, Range 0° to 359° (+/- 1°)
Rainfall, 1mm (increments of)
Ground Probe, -20°C to 60°C (+/- 0.1°C)
Secondary Sensor, -20°C to 60°C (+/- 0.1°C) / 5% to 95% RH (+/- 1% RH)
Bathgate Weather is situated at the north west edge of the town of Bathgate in West Lothian, Scotland,
United Kingdom. Located on the western side of the Bathgate Hills looking towards Harthill (5 miles to the
West) and Glasgow beyond. The station is 170m above sea level with an upward sloping field to the East and
open countryside to the West and North (Above Photo: North West) once clear of the small estate of family
homes.
Edinburgh Airport is located 11 miles to the East and Glasgow Airport 31 miles to the West.
For visitors from Edinburgh Speedway, the weather station is situated 2 miles North East from the Armadale
track.
|
|
| System Updated at |
|
|
 |
| Indoor Sensor Battery |
|
% |
| Temp Sensor Battery |
|
% |
| Rain Gauge Battery |
|
% |
| Anemometer Battery |
|
% |
| Ground Probe Battery |
|
% |
| Temp Sensor 2 Battery |
|
% |
|
| |
|
|
| Windows: |
| |
|
|
| Weather Display Console |
|
| Weather Display Version: (Build ) |
|
| Indoor Temperature: °C |
| Indoor Humidity: % |
|
| SENSOR COMPARISON CHECK |
|
| Main Temp: °C / Secondary Temp: °C |
| Main Humidity: % / Secondary Humidity: % |
|
 |
|
 |
|
 |
|
