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(2) Humidity is a difficult parameter to measure electronically and drifts
over time due to contamination. In addition, location has an adverse affect
on humidity readings (installation over dirt vs. lawn for example).

Official stations recalibrate or replace humidity sensors on a yearly basis.
Due to manufacturing tolerances, the humidity is accurate to ± 5%. To
improve this accuracy, the indoor and outdoor humidity can be calibrated
using an accurate source, such as a sling psychrometer.

(3) The display console displays two different pressures: absolute (measured)
and relative (corrected to sea-level).

To compare pressure conditions from one location to another,
meteorologists correct pressure to sea-level conditions. Because the air
pressure decreases as you rise in altitude, the sea-level corrected pressure
(the pressure your location would be at if located at sea-level) is generally
higher than your measured pressure.

Thus, your absolute pressure may read 28.62 inHg (969 mb) at an altitude of
1000 feet (305 m), but the relative pressure is 30.00 inHg (1016 mb).

The standard sea-level pressure is 29.92 in Hg (1013 mb). This is the
average sea-level pressure around the world. Relative pressure
measurements greater than 29.92 inHg (1013 mb) are considered high
pressure and relative pressure measurements less than 29.92 inHg are
considered low pressure.
To determine the relative pressure for your location, locate an official
reporting station near you (the internet is the best source for real time
barometer

conditions,

such

as

Weather.gov,

Weather.com

or

Wunderground.com), and set your weather station to match the official
reporting station.

Summary of Contents for WH2910

Page 1: ...able to stream data from the weather station to Internet based weather services This manual will guide you step by step through setting up your weather station and console and understanding the operation of your weather station Use this manual to become familiar with your professional weather station and save it for future reference Note The mounting pole for outdoor sensor array is not included ...

Page 2: ...smitter LED 16 5 4 BEST PRACTICES FOR WIRELESS COMMUNICATION 16 5 5 DISPLAY CONSOLE 17 5 5 1 Vertical Desk Stand 19 6 DISPLAY CONSOLE OPERATION 20 6 1 SCREEN DISPLAY 20 6 2 CONSOLE INITIALIZATION 21 6 2 1 Button functions 21 6 3 SETTING MODE 23 6 4 BAROMETRIC PRESSURE DISPLAY 25 6 4 1 Viewing Absolutevs RelativePressure 25 6 4 2 Rate of Change of Pressure Graph 25 6 4 3 Viewing Pressure History 26...

Page 3: ...ength Indicator 38 6 12 3 Weather Forecasting 38 6 12 4 Storm Alert 39 6 12 5 Weather Forecasting Description and Limitations 39 6 12 6 Snooze 39 7 PUBLISHING TO INTERNET WEATHER SERVICES 40 7 1 CONNECTING THE WEATHER STATION CONSOLE TO WI FI 41 7 1 1 Configure Device Connect your console with WIFI 41 7 2 ADDING WEATHER SERVICES 43 7 2 1 Ecowitt Weather 44 7 2 2 Viewing data on ecowitt net 45 7 3 ...

Page 4: ...weather station to a house or structure consult a licensed electrician for proper grounding A direct lightning strike to a metal pole can damage or destroy your home Installing your weather station in a high location may result in injury or death Perform as much of the initial check out and operation on the ground and inside a building or home Only install the weather station on a clear dry day ...

Page 5: ... used with U Bolts 1 Wrench for M5 bolts 1 AC adapter 1 User manual this manual Table 1 Package content If components are missing from the package or broken please contact customer service to resolve the issue Note Batteries for the outdoor sensor package are not included You will need 2 AA size batteries alkaline or Lithium batteries Lithium recommended for colder climates Note The console operat...

Page 6: ... lighting Barometric history graph 12 24 48 or 72 hr Maximum and minimum values for indoor outdoor temperature and humidity High low alarm options for sensors Weather forecast Sunny Partly sunny Cloudy Rainy Stormy and Snowy User accuracy calibration supported Automatically to saved user set parameters unit calibration data alarm data in to EEPROM High Mid Off backlight controlled When DC power ad...

Page 7: ...ls Stores data for past 2 years at 30 minute intervals Note The optional WH31 and WH41 WH43 can be purchased separately If more info needed please visit our website http www ecowitt com Make sure to select the model of the units with the same RF frequency as your gateway the frequency is different for various countries because of regulations The console only supports to push the optional WH31 and ...

Page 8: ... errant values may be hard to remove from Internet services if you do not reset first Attention Follow suggested order for battery installation outdoor sensor first console second Ensure batteries are installed with correct polarity Do not mix old and new batteries Do not use rechargeable batteries If outdoor temperature may go below 32F or 0C for prolonged periods Lithium based batteries are sugg...

Page 9: ...ss Range Radio communication between receiver and transmitter in an open field can reach a distance of up to 330 feet or 100 meter providing there are no interfering obstacles such as buildings trees vehicles and high voltage lines Wireless signals will not penetrate metal buildings Under most conditions the maximum wireless range is 100 or 30m 7 Radio Interference Computers radios televisions and...

Page 10: ...requires installation of an included metal plate to receive the U bolt ends The metal plate visible in Figure 2 on the right side has four holes through which the ends of the two U Bolts will fit The plate itself is inserted in a groove on the bottom of the unit opposite side of solar panel Note that one side of the plate has a straight edge which goes into the groove the other side is bent at a 9...

Page 11: ...er on Handling of the sensor package with wind vane and speed cups installed to install these bolts is more difficult and more likely to lead to damage 5 3 2 Install wind vane Push the wind vane onto the shaft on the bottom side of the sensor package until it goes no further as shown on the left side in Figure 4 Next tighten the set screw with a Philips screwdriver size PH0 as shown on the right s...

Page 12: ...side Make sure the cup assembly can rotate freely There should be no noticeable friction when it is turning Figure 5 Wind speed cup installation diagram 5 3 4 Install Batteries in sensor package Open the battery compartment with a screwdriver and insert 2 AA batteries in the battery compartment The LED indicator on the back of the sensor package item 9 will turn on for four seconds and then flash ...

Page 13: ...tteries have lower voltages and should never be used 5 3 5 Mount assembled outdoor sensor package 5 3 5 1 Before you mount Before proceeding with the outdoor mounting detailed in this section you may want to skip to setup instructions in section 5 5 and onwards first while you keep the assembled outdoor sensor package nearby although preferably not closer than 5 ft or 1 53m from the console This w...

Page 14: ...essary Once placed hand tightens all four nuts taking care to do so evenly Do not use a wrench yet Now you will need to align the whole package in the proper direction by rotating it on top of the mounting pipe as needed Locate the arrow labeled WEST that you will find on top of the sensor package right next to the light sensor on the opposite side of the solar panel You must rotate the whole sens...

Page 15: ...not operate correctly or accurately Adjust the mounting pipe as necessary If the bubble is close but not quite inside the circle and you cannot adjust the mounting pipe you may have to experiment with small wooden or heavy cardboard shims between the sensor package and the top of the mounting pole to achieve the desired result this will require loosening the bolts and some experimentation Make sur...

Page 16: ...ible to interference distance walls and metal barriers We recommend the following best practices for trouble free wireless communication between both sensor packages and the console Electro Magnetic Interference EMI Keep the console several feet away from computer monitors and TVs Radio Frequency Interference RFI If you have other devices operating on the same frequency band as your indoor and or ...

Page 17: ...f you have such metal barriers and experience communication problems you must change the placement of sensor package and or console The following table shows different transmission media and expected signal strength reductions Each wall or obstruction decreases the transmission range by the factor shown below Medium RF Signal Strength Reduction Glass untreated 5 15 Plastics 10 15 Wood 10 40 Brick ...

Page 18: ...r with the included power adapter 2 Unfold the desk stand and place 5 to 10 feet or 1 5 to 3 meter away from the sensor array Remove the battery door on the back of the console and insert 3xAAA batteries per Figure 11 3 Wait several minutes for the remote sensors to synchronize with the display console ...

Page 19: ...nsole is best viewed above from a 20 to 30 degree angle In addition to the fold out desk stand on the back of the display console the console also includes a vertical desk stand to improve the viewing able on a desk as shown in Figure 12 Figure 12 ...

Page 20: ...Console Screen Layout 1 Time 10 Rain fall 2 Moon phase 11 Outdoor temperature 3 Barometric Pressure 12 Outdoor humidity 4 Weather forecast 13 RF icon 5 UV index 14 Indoor humidity 6 Solar Radiation Light 15 Indoor temperature 7 Wind speed 16 Date 8 Wind direction 17 WIFI icon 9 MAX MIN Daily Table 4 Display console detailed items ...

Page 21: ...e version number two seconds after power up Figure 14 The console will display all of the LCD segments for three seconds after power up as shown in Figure 15 the indoor conditions will immediately update and the outdoor sensor array will register within a few minutes Figure 15 6 2 1 Button functions Figure 16 ...

Page 22: ...ress and hold for two seconds to increase the value rapidly PRESSURE Press to switch between Relative Pressure current and 12hr 24hr 48hr and 72hr average Relative Pressure While in SET mode press to decrease the value Press and hold for two seconds to decrease the value rapidly ALARM Press to switch between high and low alarms MAX MIN Press to switch between minimum and maximum values LIGHT SNOOZ...

Page 23: ... Beep On or Off Press WIND to switch OFF and ON This will prevent the beep from sounding when pressing any button SET Clear Max Min Press WIND to switch OFF and ON When set to ON the minimum and maximum values reset every day at midnight 00 00 When set to OFF the minimum and maximum values must be reset manually SET 12 hour 24 Hour Format Press WIND to switch hour format between 12 hour and 24 hou...

Page 24: ...e units of measure between hPa mmHg or inHg SET Relative Pressure Calibration Press WIND or PRESSURE to adjust relative pressure up or down Reference Section 6 4 4 for details on calibration of relative pressure SET Light Units of Measure Press WIND to change light units of measure between lux fc or w m2 SET Temperature Units of Measure Press WIND to change temperature units of measure between F a...

Page 25: ...ure To switch between absolute and relative pressure press and hold the PRESSURE button for two seconds Absolute pressure is the measured atmospheric pressure and is a function of altitude and to a lesser extent changes in weather conditions Absolute pressure is not corrected to sea level conditions Relative pressure is corrected to sea level conditions For further discussion of relative pressure ...

Page 26: ...re Thus your absolute pressure may read 28 62 inHg 969 mb at an altitude of 1000 feet 305 m but the relative pressure is 30 00 inHg 1016 mb The standard sea level pressure is 29 92 inHg 1013 mb This is the average sea level pressure around the world Relative pressure measurements greater than 29 92 inHg 1013 mb are considered high pressure and relative pressure measurements less than 29 92 inHg ar...

Page 27: ...fined as the last 10 minutes of rainfall multiplied by six 10 minutes x 6 1 hour This is also referred to as instantaneous rain per hour Rain event is defined as continuous rain and resets to zero if rainfall accumulation is less than 10 mm 0 039 in in a 24 hour period Daily Rain is defined as the rainfall since midnight 00 00 Weekly Rain is defined as the calendar week total and resets on Sunday ...

Page 28: ...temperature is higher than maximum range the temperature field will display dashes 6 7 1 Wind Chill Dew Point and Heat Index Display Press the TEMP button to switch between Outdoor Temperature Wind Chill Dew Point Heat Index 6 8 Alarm mode 6 8 1 Display of Alarm value 1 Press and release ALARM button to display high alarm Figure 18 2 Press ALARM button again to display low alarm Figure 19 ...

Page 29: ...e disable the alarm Note when alert is triggered the current triggering source icon for time icon for high value and icon for low value will be flashing indicating alert is triggered Note press ALARM button third time back to normal mode or press LIGHT SNOOZE button back to normal mode 6 8 3 Alarm Setting Order 1 Time alarm setting 2 Indoor high temperature setting 3 Indoor low temperature setting...

Page 30: ... press and hold the MAX MIN button while the min values are displayed To return to normal mode press the MAX MIN button again or press LIGHT SNOOZE button a b Figure 20 6 9 1 1 Display Wind Chill Heat Index vs Dew Point Max Min Values While the max values are displayed as outlined in Section 6 9 1 press the TEMP button once to view the max heat index twice to view the dew point and a third time to...

Page 31: ...in rate 6 9 1 4 Display Absolute and Relative Pressure Min and Max Values While the max values are displayed as outlined in Section 6 9 1 press and hold the PRESSURE button for two seconds to view the max absolute pressure and press and hold the PRESSURE button for two seconds again to return to relative pressure While the min values are displayed as outlined in Section 6 9 1 press and hold the PR...

Page 32: ...5 6 9 3 Calibration Discussion The purpose of calibration is to fine tune or correct for any sensor error associated with the devices margin of error Errors can occur due to electronic variation example the temperature sensor is a resistive thermal device or RTD the humidity sensor is a capacitance device mechanical variation or degradation wearing of moving parts contamination of sensors Calibrat...

Page 33: ...arization 1 Temperature errors can occur when a sensor is placed too close to a heat source such as a building structure the ground or trees To calibrate temperature we recommend a mercury or red spirit fluid thermometer Bi metal dial and digital thermometers from other weather stations are not a good source and have their own margin of error Using a local weather station in your area is also a po...

Page 34: ...ause the air pressure decreases as you rise in altitude the sea level corrected pressure the pressure your location would be at if located at sea level is generally higher than your measured pressure Thus your absolute pressure may read 28 62 inHg 969 mb at an altitude of 1000 feet 305 m but the relative pressure is 30 00 inHg 1016 mb The standard sea level pressure is 29 92 in Hg 1013 mb This is ...

Page 35: ...ibrate for this error with a wind speed multiplier In addition to the installation challenges wind cup bearings moving parts wear over time Without a calibrated source wind speed can be difficult to measure We recommend using a calibrated wind meter not included and a constant speed high speed fan Note If located in southern hemisphere please follow the steps to calibrate the wind direction 1 Inst...

Page 36: ...in gauge funnel If there s any question please contact us at support ecowitt com or ecowittweather outlook com 6 10 Other Features 6 10 1 Factory Reset Clear Memory To restore the console to factory default perform the following steps 1 Remove the power from the console by removing the batteries and disconnecting the AC adapter 2 Apply power by connecting the AC adapter 3 Wait for all of the segme...

Page 37: ...et To temporarily turn on the back light for 15 seconds press the LIGHT SNOOZE button 6 12 1 Tendency indicators Tendency arrows allow you to quickly determine of temperature or pressure are rising and falling in a three hour update period updated every 30 minutes Table 7 defines the conditions for rising and falling pressure every 3 hours Table 7 Tendency indicators summarization Tendency indicat...

Page 38: ...ease allow at least one month for the weather station to learn the barometric pressure over time Sunny Partly Cloudy Cloudy Rainy Stormy Snowy Pressure increases for a sustained period of time Pressure increases slightly or initial power up Pressure decreases slightly Pressure decreases for a sustained period of time Pressure rapidly decreases Pressure decreases for a sustained period of time and ...

Page 39: ...s only 70 accurate and it is a good idea to consult the National Weather Service for more accurate weather forecasts In some locations this prediction may be less or more accurate However it is still an interesting educational tool for learning why the weather changes The National Weather Service and other weather services such as Accuweather and The Weather Channel have many tools at their dispos...

Page 40: ...vice that allows you to send and view your weather station data real time view graphs and gauges import text data for more detailed analysis and use iPhone iPad and Android applications available at Wunderground com Weather Underground is a subsidiary of The Weather Channel and IBM WOW http wow metoffice gov uk WOW is a UK based weather observation website Weather Cloud https weathercloud net Weat...

Page 41: ...o follow all instructions except to use an incorrect password on purpose Then after final outdoor installation come back and change the password after clearing console history That will start uploading to the services with a clean slate 7 1 1 Configure Device Connect your console with WIFI The console can function as an independent Wi Fi access point during Wi Fi configuration This will be used to...

Page 42: ...This may be automatic on the very first use of the application 5 Tap on the appropriate device type and select Next Follow the prompts Figure 23 6 Confirm Wi Fi configuration mode is active as prompted Correct if necessary see above Press Next 7 Enter your preferred Wi Fi SSID network name and security password Press Next This will be communicated to the console in a later step 8 Now switch your m...

Page 43: ...ice should have been returned to your normal Wi Fi network setting and the page will automatically jump to Upload page If not successfully please contact the customer service resolve the issue 7 2 Adding weather services You may have configured weather services during the initial configuration or you may do so later To do so open the mobile application and select your device from the device list T...

Page 44: ...on the page Press Register at ecowitt net and finish the registration on the page o Press the upper left menu button and select Devices o Press Add Device and input all the information needed o Press Save o Press Dashboard on the menu Your sensor data would be available on the dashboard within several minutes Note When select device address on map please wait until the map displays before selectin...

Page 45: ...ion ID replaces the text STATIONID https www ecowitt net home index id STATIONID Note If you want to share your station data with other users you ll need to set your data to be public Other users need to log in the ecowitt net first to view your data It will show a page such as this where you can look at today s data and historical data as well Dashboard ...

Page 46: ...46 Graph display List display ...

Page 47: ...47 Weather Map Email Alerts ...

Page 48: ...tion You may do so on the Wunderground uploading page in the WS View application Press Register at Wunderground com and finish the registration on the page 1 Visit Wunderground com and click Join as the right top arrow indicates and select the Sign up for free option 2 Click More and select Add Weather Station to register your station ...

Page 49: ...49 Click verify location and fill out the form After submitting the form you will see the following ...

Page 50: ...ata including graphs on the screen within hours Figure 25 Note WU Dashboard shows the data obtained from WU server This requires that your mobile device can reach the Internet and therefore this is possible even when you are not on your home Wi Fi network such as when using cellular data 7 4 Viewing data on wunderground com You can also observe your weather station s data by using the wunderground...

Page 51: ...cal data as well There are also some very useful mobile apps The URLs provided here go to the Web version of the application pages You can also find them directly from the iOS or Google Play stores WunderStation iPad application for viewing your station s data and graphs https itunes apple com us app wunderstation weather from your neighborh ood id906099986 ...

Page 52: ...derground Forecast iOS and Android application for forecasts https itunes apple com us app weather underground forecast id486154808 https play google com store apps details id com wunderground android w eather hl en ...

Page 53: ...WS Weather Station Monitor View weather conditions in your neighborhood or even right in your own backyard Connects to wunderground com https itunes apple com us app pws weather station monitor id713705929 ...

Page 54: ...t Device List to view all your devices You can press your device to view or modify the settings Figure 26 Note This function requires that your phone and the console is using the same network 7 6 Manage Wunderground You can add or delete WU Station ID by selecting Manage Wunderground on the submenu ...

Page 55: ...55 Figure 27 7 7 Unit Settings You can set your desired display units by selecting Unit Settings on the submenu Figure 28 ...

Page 56: ...ny dirt debris and insects If bug infestation is an issue spray the array lightly with insecticide Figure Rain gauge installation and maintenance 2 Clean the solar radiation sensor and solar panel every 3 months with a non abrasive slightly damp cloth 3 Replace batteries every 1 2 years If left in too long the batteries may leak due to environmental challenges In harsh environments inspect the bat...

Page 57: ...eries apply a corrosion preventing compound on the battery terminals available at Amazon and most hardware stores 5 In snowy environments spray the top of the weather station with anti icing silicon spray to prevent snow build up ...

Page 58: ...tery checks and placement you may have a defective unit Make sure you have fresh batteries in the display console If the batteries may have been changed in the remote and or the console and the console has not been reset the solution may be as simple as powering cycling the console remove both batteries and external adapter for about 10 seconds and reconnect If you still have problems bring the ou...

Page 59: ...ing devices such as TVs monitors computers and transmitting devices If you still have intermittent problems move sensor and console closer together but not closer than 5 ft Also check that there are no metal barriers like aluminum siding or metal wall framing along the line of sight between sensor and console Relocate sensor and console as necessary to avoid obstacles Depending on natural barriers...

Page 60: ...ial station If there is a disagreement make sure you are not looking at absolute pressure in particular if your station is not near sea level Also check at different times due to occasional delays in updates to the official station Redo the pressure calibration procedure described in section 6 9 3 The barometer is only accurate to 0 09 inHg 3 hPa within the following relative pressure range 20 67 ...

Page 61: ...s connectivity is operational the Wi Fi icon will be displayed in the time segment on the console If the symbol is not displayed but you do remember configuring it successfully before check that the console external power adapter is plugged in and functional Wi Fi use demand more energy than batteries alone can provide If you have never been able to configure Wi Fi to a working state make sure you...

Page 62: ...ndicate wind force DEW POINT The temperature to which air must be cooled to become saturated with water vapor When further cooled the airborne water vapor will condense to form liquid water dew or frost if below freezing HEAT INDEX The heat index HI or humiture is an index that combines air temperature and relative humidity in shaded areas as an attempt to determine the human perceived equivalent ...

Page 63: ... This is similar to inches of mercury except expressed in millimeters Standard pressure is approximately 760 mmHg RELATIVE AIR PRESSURE RELATIVE BAROMETRIC PRESSURE Relative air pressure is the absolute air pressure compensated for the altitude of the barometer The result is what the air pressure would be at sea level ULTRA VIOLET INDEX The ultraviolet index or UV Index UVI is an international sta...

Page 64: ...Levels above 8 are considered very high and above 11 are considered extreme WIND CHILL Wind chill popularly wind chill factor is the lowering of body temperature due to the passing flow of lower temperature air In other words the air feels colder than it is because of the chilling effect of the wind on the skin Table 10 Glossary of terms ...

Page 65: ...range 1 99 Humidity accuracy 5 Humidity resolution 1 Rain volume display range 0 9999 mm or 0 199 99 in Rain volume accuracy 10 Rain volume resolution 0 3 mm for volume 1 000 mm 1 mm for volume 1 000 mm or 0 01 in for volume 100 in 1 mm for volume 100 in Wind speed range 0 50 m s 0 100 mph Wind speed accuracy 1 m s speed 5 m s 10 speed 5 m s or 0 1 mph speed 11 mph 10 speed 11 mph UV Index range 0...

Page 66: ...ower Consumption 0 5 Watts 1 25 Watts during Wi Fi configuration mode Base station console 3 x AAA batteries not included Outdoor sensor Solar panel built in Outdoor sensor backup 2 x AA 1 5V LR6 Alkaline not included or 2 x AA 1 5V Lithium battery not included Table 13 Power specification The primary power source for the outdoor sensor is the solar panel When available solar power light over rece...

Page 67: ...original date of purchase is valid only on products purchased and only to the original purchaser of this product To receive warranty service the purchaser must contact us for problem determination and service procedures This limited warranty covers only actual defects within the product itself and does not cover the cost of installation or removal from a fixed installation normal set up or adjustm...

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