Texas Instruments WR-25 User's Manual
Contents
1. Report Time Set Function Select Scale Calibration Set Function Select Average Printer Set Function Select Humidity Hold Humidity Calibration Set Clear Last Clears Last Rain Select Last Clear Maximum Enters Rainfall History Mode Clears all Maximums and Minimums Clear Minimum Clears all Maximums and Minimums Clear Scale Average Performs a cold boot Windchill Comfort Dewpoint Keys must be pressed precisely at the same time to perform the desired function Lunar Tide Cycle The lunar tide cycle function may be set to display the position of the moon in relation to its revolution around the earth The moon s position is the primary although not the only factor in predicting high and low coastal tides High tides are generally present when the moon is overhead or when the moon is 180 degrees from overhead Low tide is generally present when the moon is in the 90 degree or the 270 degree position This method of predicting tide works well on the West and East coasts On the Gulf coast this method is not as successful To set the tide clock follow the directions in the time set function The first item to be entered is the tide cycle duration The tide cycle duration may be set from 1 to 99 hours Twelve hours and fifty one minutes is the normal number for a tide clock The second item to be entered is the time of the high tide This information is generally found in the newspaper If predicting the tide doe2. 2 26 Print Set 11 prn_day 18 prn _rec 18 R rain collector 17 21 Rain collector type 16 Rain increment value 17 Rainfall 21 Rainfall history mode 23 rainfall rate interval 17 Reference Report 4 Report Flag 21 Report Interval Units 17 report output 17 Report output interval HI 17 Report output interval LO 17 RS 232 12 19 20 21 22 S Scale 4 17 Seconds 17 Select 4 Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual Special Key Functions 22 T Temperature 20 temperature humidity sensor 2 Term rainfall history register 17 tide clock 23 Time display 17 Time Setting Mode 6 Trend indicators 1 Troubleshooting twi_com dat 14 TWI_LOG 13 20 W Wind direction calibration 16 Wind Speed scale 17 Windchill 5 13 Y years 17 Texas Weather Instruments Inc WR 25 Instruction Manual
3. Kilometers per hour Fahrenheit to Celsius Inches of Mercury to Millibars Inches of rain to Centimeters of rain Pressing the select and scale key at the same time puts the unit into calibration mode Report Pressing the report key sends current data to the serial port The report key when depressed at the same time as the select key puts the unit into its time setting function Hold The hold key when depressed toggled on stops the cycling between two different parameters on the same display Windchill The windchill key when depressed calculates and displays using wind speed and temperature a factor which represents how cold the temperature and wind feel to bare flesh Pressing the windchill and the comfort key at the same time will display the dew point Comfort The comfort key when depressed calculates and displays using humidity and temperature a factor which represents how warm the temperature feels Last The last key when pressed displays the time and date of the last rainfall and its rainfall rate When pressed at the same time as the clear key the instrument clears the term rainfall register When last pressed at the same time as select the unit enters into rainfall history mode Average When toggled on the dot below the Av light near the wind speed display indicating that the unit is in wind averaging mode When in wind averaging mode the instrument displays the previous minute s average wind direction and speed Wh
4. Unit responds with a daily minimum and maximum of all parameters then clears The rainfall rate is present rather than term rain ample MIN 07 24 90 SW OOMPH 070F 067F 067F 054 30 00 00 19 D 01 38 M 00 00 R MAX 07 24 90 SSE 25MPH 052F 071F 092F 099 30 06 00 19 D 01 38 M 00 72 R c Unit responds with a daily minimum and maximum of all parameters then clears The term rain is present rather than rainfall rate Sample MIN 07 24 90 SW OOMPH 070F 067F 067F 054 30 00 00 19 D 01 38 M 00 00 T MAX 07 24 90 SSE 25MPH 052F 071F 092F 099 30 06 00 19 D 01 38 M 00 72 T The minimum and maximum associated with the C command is cleared automatically at midnight D Unit responds in an identical manner as the C command but does not clear the system memory d Unit responds in an identical manner as the c command but does not clear the system memory E or e Unit responds with minimum and maximums along with date and time of occurrence This uses the same buffer as the c and d command M Unit responds with all minimums and maximums with the date and time of their occurrence then clears m Unit responds in an identical manner as with the M command but does not clear the system memory TA 09 32 056 F TI 15 03 080 F TO 16 10 056 F RH 01 40 060 BP 16 11 29 57 BP 10 20 30 15 RD 04 29 00 00 RT 01 00 RM 03 32 WS 00 00 000 MPH 048 e system has two completely separate memory buffers C an commands R Unit responds with
5. be displayed Change as desired Feport Cy Hold Press select an eleventh time the single dot remains at the top between the hour and minute and the minutes of the peak hour will be displayed Change as desired se E AM G Pe Report Hold 3 1 Press select a twelfth time and the unit will return to normal display mode Calibration mode index top See the calibration reference section on page 18 for other details Calibration Method Press select and scale at the same time and the unit enters the calibration mode first displaying the Aux temperature If the Aux dip switch is in the off position the unit will skip this calibration If necessary press the maximum or minimum key to enter the proper temperature Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual Report a Time Date Hold an Windchill j Temperature Hod C M 6 fee ee Comfort 4 j sarometertumidiy wu CO Last R al ra a Select Clear Minimum Maximum Seale ecqcooe a na Sor WEATHER REPORT Press select a second time and the unit displays the indoor temperature Press the maximum or minimum key to enter the actual temperature oe T z i z 5 INGcril A ndor I s E z i Ll Hold C gua Press select a third time the unit displays the outdoor temperature Press the maximum or minimum key to enter the actual temperature rne T
6. current conditions The rainfall rate is present rather than the term rain Note in 30 04R the R denotes rising pressure ample 5 15 07 24 90 SSE 04MPH 052F O69F 078F 099 30 04R 00 19 D 01 38 M 11 78 T r Unit responds with current conditions The term rain is present rather than the rainfall rate Note in 30 04F the F denotes falling pressure a S character denotes steady pressure Sample 5 15 07 24 90 SSE 04MPH 052F 069F 078F 099 30 04F 00 19 D 01 38 M 00 72 R K Unit responds with current calculated values for dew point Windchill and heat index Twi_Log Program Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual index top The TWI_LOG program TWI_LOG is an IBM PC software utility which enables the user with special applications to communicate and set various functions of the WRL Insert the TWI_LOG diskette into your disk drive and type TWI_LOG then press enter Note TWI LOG is no longer sent with the weather stations The TWI Cal Windows program has replaced TWI_LOG and is included with the weather station If for some reason you still need the TWI_LOG program it is available on our website at www texas weather com The first screen of the program will look this 1 Com1 2 Com2 3 Modem enter index of station name Pressing selection 1 accesses the WRL if it is plugged into com1 Pressing selection 2 accesses the WRL if it is plugged into com2 Press
7. text file will be named prn_day for the minimums and maximums and prn_rec for the record The extension of the files will correspond with the ID number of the weather unit whose record is being converted Pressing F8 will display the version number of the firmware in the WRL Pressing F9 will set the weather station time to match that of the computer Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual Pressing F10 will exit the program Direct data retrieval from a DOS prompt may be accomplished by entering TW _LOG dl where the equals the line of the unit as defined in the twi_com dat file For example entering TWI_LOG 1 d would access in our current setup the Green unit Entering TW _LOG 2 d would access the Red unit After the data is retrieved the program will return to the DOS prompt For automatic data retrieval of multiple units at a predetermined time a commercial PC scheduling program may be use You may look at data that is stored on disk even if you are not tied directly to that weather station by entering TWI_LOG ixxx where xxx equals the ID number of the unit the unit ID may be set using the F5 function key within TWI_LOG At the DOS prompt TWI_LOG I135 would access the data for unit 135 index top Control Options Control options can be changed through the print set routine see page 13 for directions on changing this number These control options can also be c
8. z i InGgcrl A ndor z 2 z E z i MEES Hold C Tua Press select a fourth time and the unit displays barometric pressure Press the maximum or minimum key to enter the actual barometric pressure Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual Corfort Cy 29 926 Hold C v Press select a fifth time and the unit displays in the rainfall window 0 1 2 or 3 2 is the normal display Press the maximum or minimum key to enter the proper number see calibration reference for more information Last C Q Q gd Day Inch Hold O er oe Press select a sixth time the unit will display in the rainfall window a reading ranging from 01 to 1 Press the maximum or minimum button to enter the proper number Last Cy Q G z 4 Monhk lt fam 2 i To EETTERIIN ETETE EEIE EEE CE EEE KE KASESE KE ESA aE EA ASE E Dee Press select a seventh time the unit displays wind direction Press the maximum or minimum key to enter the actual wind direction Press select an eighth time the unit will return to the normal display mode Humidity Sensor Calibration This function is only used if a new humidity sensor is installed Press select and humidity hold to enter this mode The first number to appear is the voltage at 0 humidity that the sensor outputs Press select again and a second number will appear This larger number is the voltage that the se
9. 38 M 00 72 R Computer Interface The WR 25 may be plugged directly into computers equipped with RS 232 interfaces Data may be captured to disk by using a communication program i e Crosstalk or Procomm for the IBM PC or the TWI_LOG program The WR 25 sends data in a serial format at 300 to 19 2 baud rate 8 data bits no parity and one stop bit Note The WR 25 has two separate minimum and maximum memories Clearing the M command minimum and maximum memory will not affect the C command minimum and maximum memory and vice versa The printer computer memories clear at 12 00 midnight every day and or when the c key is pressed on the computer console Calibration Reference index top The Weather Report comes pre calibrated from the factory but it is possible to recalibrate most of the primary functions of the instrument using the F5 function of the TWI_LOG program Barometric Pressure Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual Normally barometric pressure is the only item that needs to be recalibrated adjusting for altitude The proper local barometric pressure can be obtained from the local news Set the barometric pressure reading you obtained from the local media by using the calibration mode function Temperature If for some reason you suspect that the temperature is not calibrated properly use a quality bulb thermometer with which to calibrate Remember the WR 25 will be most ac
10. INSTRUMENTS RAIN COLLECTOR IS 2 FOR THE COUNT AND 01 FOR THE MEASUREMENT The daily rainfall register is zeroed every day at midnight The monthly rainfall register is zeroed on the last day of each month at midnight The term rainfall register is never zeroed automatically it must be manually zeroed through the TWI_LOG calibration routine or by pressing last and clear on the display at the same time Report Flag The report flag selects the format of the RS 232 output and may be changed via the display using the print set routine or by using the TWI_LOG program calibration routine F5 item 15 report flag normally used when outputting directly to a printer Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual SETTING MIN MAX FORM FEED RAIN RATE OFF OFF OFF OFF OFF OFF ON OFF OFF OFF ON When rain rate is off term rain is substituted 0 1 2 3 4 5 6 7 Min Max when selected outputs at midnight the minimum and maximum value for the day The report function must be on in order for the output to occur This function must also be on if you want the minimum and maximum to be logged to memory Form Feed when selected sends a form feed character at midnight which is normally desirable if a printer is directly hook up to the RS 2382 interface Rainfall rate when selected outputs rainfall rate instead of term rain in the report function Special Key Functions index top Select
11. Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual The pin out on the RS 232interface is as follows DE 9 Plug Header Pin 1 Pini Pin 2 Pin 3 Receive Data Pin3 Pin5 Transmit Data Pin 4 Pin7 Data Set Ready Pin 5 Pin 9 Signal Ground Pin 6 Pin 2 Data Terminal Ready must be true to send data Pin 7 Pin 4 Clear to Send Pin 8 Pin6 Request Send Pin 9 Ping Modem Installation A modem may be used with the WR 25 for remote operations A modem adapter which is available from TWI must be used to properly connect the weather station to a modem For auto answering an auto answering modem with non volatile memory must be used The WR 25 does not send AT control signals so in order for the modem to properly answer the modem must be told programmed with a computer to answer on whichever ring the user desires Modems pre programmed in non volatile memory are available from Texas Weather Instruments Typical Output Temperature Daily Monthly Rainfall Time Date Direction Speed Aux Indoor Outdoor Humidity Pressure Rain Rain Rate 15 00 07 24 90 SE O3MPH 070F O69F 082F 090 30 045 00 01 D 01 20 M 00 00 R 15 15 07 24 90 SSE 04MPH 052F O69F 078F 099 30 04S 00 19 D 01 38 M 00 72 R 15 30 07 24 90 SE 02MPH O65F 068F 072F 089 30 04S 00 19 D 01 38 M 00 00 R MIN 07 24 90 SW OOMPH 070F 067F 067F 054 30 00 00 19 D 01 38 M 00 00 R MAX 07 24 90 SSE 25MPH 052F 071F 092F 099 30 06 00 19 D 01
12. WR 25 Instruction Manual Manufacturer of Digital Weather Stations 6342 Abrams Road 113 Dallas TX 75231 214 368 7116 or 800 264 0245 Weather Report Digital Weather Station WR 25 index Thank you for purchasing a Weather Report Your package should contain a WR 25 console wind sensor temperature humidity sensor rain collector and this manual Normal Operation When in normal operation no buttons depressed the instrument displays current wind direction and speed cycles current time and date cycles current indoor outdoor and if selected aux temperatures if both the indoor and outdoor indicator lights are extinguished Aux temperature is displayed cycles current barometric pressure current relative humidity and cycles daily monthly and term cumulative rainfall By utilizing the hold buttons associated with each display the user may select the most important readings to the user When wind speed exceeds 99 miles per hour a small green light will turn on between the digits of the wind speed display Trend indicators arrows are located to the right of the temperature relative humidity and barometric pressure displays If for example the current relative humidity was increasing the up trend arrow would be lit If there was no change no arrow would be lit pee index top We strongly suggest that all the weather station sensors be connected to the weather station and tested prior to installa
13. al rainfall Check that the rainfall count is set on 2 If you still experience problems please call 214 368 7116 and ask for Technical Support we will be happy to help you A arc_log 15 ASCII characters 12 AT control signals 19 Aux disable 17 Average 5 average wind data 17 Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual B Barometric Pressure 20 Barometric pressure calibration 16 baud rate 17 C Calibration Method 8 Calibration mode 8 Calibration Reference 20 Clear 4 Clearing the Memories 23 Comfort 5 Command Characters 12 Communicating with the WR 25 12 Computer Interface 20 Control Options 18 D Daily rainfall history register 17 daily rainfall register 21 day 17 Dewpoint 22 F FCC RADIO FREQUENCY INTERFERENCE STATEMENT 25 FUNCTION KEYS 4 H Hold 4 hours 17 Humidity Sensor Calibration 10 20 humidity sensor calibration factor 16 I ID number 17 Inside temperature calibration 16 INSTALLATION 2 L Last 5 logging interval hours 17 logging interval minutes 17 Lunar Tide Cycle 22 Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual lunar tide cycle 4 M Maximum 4 Minimum 4 minutes 17 modem adapter 19 Modem Installation 19 month 17 N Normal Operation 1 O OPERATION 4 Outside temperature calibration 16 P pagoda
14. anual WR 25 Instruction Manual Inx Value Description 85 temp aux 65 temp inside 73 temp outside 29 92 barometric pressure 0 elevation 0 750 MVP 0 0 HR 3 255 MVP 73 3 HR Inx Value Description 94 clock years 11 clock month 22 clock day of month 2 clock day of week Mon 11 clock hours 24 clock minutes 54 clock seconds 8 wind dir offset 0 log interval hrs 2 rain inc flag 30 log interval minutes 0 01 rain inc value 0 Scale O FPS 1 CGS OONDIBRWNDM 0 00 rain fall daily 0 ID number 8 POR Counter 0 RR Interval sec 0 report interval HI 0 Wsp units MPH 0 report interval LO 1 Time dispaly AMPM 0 report Min Max Off 1 aux Temp 4 report end of day 1 Wsp Wdir 0 report interval Units M S 4 baud rate 2400 O report character r 0 00 rain fall monthly 0 00 rain fall term enter parameter index Note This screen and its index numbers will vary depending on what options are installed Any item in this index can be changed by 1 entering the index number 2 entering the new value 3 entering Y to set the new value or N to reject the new value 1 Aux temperature calibration 2 Inside temperature calibration 3 Outside temperature calibration 4 Barometric pressure calibration 5 Elevation correction not used 6 ist humidity sensor calibration factor 7 2nd humidity sensor calibration factor 8 Wind direction calibration increase number to move clockwise or decrease number to m
15. curate near the temperature at which it was calibrated Humidity Sensor Calibration The humidity sensor is calibrated by inputting two voltages found on humidity sensor into the WR 25 This may be done by utilizing the TWI_LOG program calibration routine Index 5 is the voltage at 0 humidity that the sensor outputs Index 6 represents the voltage that the sensor outputs at 73 humidity The humidity calibration numbers are found on the humidity temperature sensor and on the back of the instrument console These calibration numbers are supplied to us by the manufacturer of the sensor and are normally not changed If it appears that re calibration is necessary try increasing or decreasing index 6 Rainfall The WR 25 is compatible with most rain collectors on the market today The rain inc flag is only utilized to tell the WR 25 what type rain collector is installed Actual measurement calibration is accomplished inside the rain collector by adjusting two stainless steel screws Setting 0 turns the rainfall counter off Setting 1 or 2 tells the WR 25 to react with one count for every momentary switch closure of the rain collector Setting 3 tells the WR 25 to react with one count for every rain collector switch transition from an open or closed state Rain inc value tells the WR 25 how much rainfall to display for each count Use the TWI_LOG F5 calibration routine index 8 and 9 to change these settings THE PROPER SETTING FOR THE TEXAS WEATHER
16. difications not expressly approved by Texas Weather Instruments Inc could void the user s authority to operate the equipment SHIELDED CABLE Shielded cables must be used with this equipment to maintain compliance with FCC regulations Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual 1 6 96 L roubleshooting index top Instrument display does not come on Make sure receptacle has power by plugging another appliance into it Check that the transformer is properly wired into instrument the leads could be reversed or not seated properly Check that the fuse is intact 75 amp fuse inside the case Try unplugging the transformer to reset the computer Instrument display works but does not read correctly Make sure you are displaying the proper scale English or Metric Check that all connectors in the back of the unit are properly seated and that sensor wires are on their proper junctions and secure see to Figure 2 Try unplugging then replugging the transformer to reset the weather station Check the fuse in the back of the instrument If it feels hot replace with a 75 amp fuse available at most electronic stores Humidity reads 0 during the day If your humidity sensor is in a plastic box make sure that is in the shade and has the cover attached the humidity sensor is light sensitive does not apply to pagoda installations Rain collector appears to be counting double that of the actu
17. e the display Press select a seventh time and a number between 0 and 255 will appear in the pressure humidity window which represents output options Enter the proper option number by pressing the maximum or the minimum keys The output options control the selection of such things as AM PM wind speed knots auxiliary display and average wind speed output Look at the first item in the reference section called control options for more information page 18 Press select a eighth time and the unit will return to a normal display Communicating with the WR 25 Connect the 9pin female DB 9 plug of one end of the supplied RS 232 cable into the male DB 9 plug of the WR 25 Plug the other end of the RS 232 cable using either the DB 25 or the DB 9 female plugs into a open com port on your computer all com ports on computers are either 9pin male or 25 pin males If you do not use the supplied cable please note that a null modem adapter is required to properly talk to a computer the supplied cable has one built in The WR 25 via its RS 232 interface can communicate with computers running either the optional TWI LOG program or standard computer communication programs The WR 25 responds to the following ASCII characters sent by computers with ASCII space delimited text Command Characters Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual V Firmware version number S Firmware Serial l Unit ID number C
18. en pressing the average key and the select key at the same time the unit enters into the printer set mode Time Setting Mode index top Press select and report at the same time and the last two digits of the year displays i e 90 1990 Press the maximum button to advance the year the minimum button to retard the year Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual Time Date Hold 4 Windchill N Temperature Hold 9 O aia Comfort Barometer Humidity wow aN Lat Rainfall Held TN Select Clear Minimum hlaximum Scale Press select a second time and the month will be displayed i e 1 Jan and 12 Dec Press the maximum and minimum key to set the month re Report D gt P Hold ol a Press select a third time and the day of the month 1 31 digits light Press the maximum to advance the date and minimum to retard the date Report Press select a fourth time and the day of the week is displayed 1 Sunday 2 Monday 3 Tuesday 4 Wednesday 5 Thursday 6 Friday and 7 Saturday Press the maximum button to advance the day of the week and minimum to retard ne Of FO Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual Report Cy o Hold C 4 A ee en ot EEEN ENEE ht ote ib ee TDi Oy Press select a fifth time note the colon between the hours and minutes and the unit will di
19. hanged through the optional TWI_LOG program F5 screen The first control option is wind speed scale When turned on the wind speed is in knots instead of the normal mile per hour or kilometer per hour when in metric scale The second control option selects the manner in which the time is displayed 24 hour military style or the AM PM format When on the AM PM style is displayed Aux display disable is the third option when it is on the temperature display cycles between the indoor and outdoor values only If you do not have options such as aux temperature or solar radiation aux display disable should be turned on Instant wind speed output is the fourth option When turned on the windspeed output to the RS 232 port is an instant reading rather than a one minute average To turn on the desired control options via the weather station display refer to the table below add up the values of the controls that should be turned on and enter that value into the weather instrument via the print set function see page 17 The default value is 224 For example if you wanted AM PM turned on and instant wind speed output turned on you would add 32 128 which equals 192 Enter 192 into the weather instrument via the print set function Option Value Knots on 16 AM PM on 32 Aux disable on 64 Instant wind speed on 128 total You may also change these functions via the software program TWI_LOG F5 routine RS 232 Interface RS 232 Interface
20. he unit will display term rainfall change as desired Press select again and the unit will return to normal mode We Henr Ei er Y Yie El bide said gure 2 Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual L Ka 7 n FCC RADIO FREQUENCY INTERFERENCE STATEMENT NOTE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 Subpart B of the FCC Rules This equipment generates uses and can radiate radio frequency energy If not installed and used in accordance with the instructions may cause interference to radio communications The limits are designed to provide reasonable protection against such interference in a residential situation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try and correct the interference by one or more of the following measures Reorient or relocate the receiving antenna of the affected radio or television Increase the separation between the equipment and the affected receiver Connect the equipment and the affected receiver to power outlets on separate circuits Consult the dealer or an experienced radio TV technician for help MODIFICATIONS Changes or mo
21. ing selection 3 accesses the WRL via modems and phone lines WRL access can be modified by editing the twi_com dat file on your TWI_LOG disk To change the configuration load twi_com dat into a text editor and change to your preference The first station in this example is identified as green It is set up on com 1 at 2400 baud no parity eight data bits and one stop bit BIN DSO CDO and CS0 are various configuration parameters that must be in the string The TWI station is configured as a remote unit A modem would be connected to com set at 2400 baud no parity 8 data bits and one stop bit The ATEOQV1M1X4S0 0 is the modem configuration string required by this particular modem The DT1 214 234 1309 is the phone number where the remote unit and its modem are located Please note that TWI_LOG does not support Com3 or Com4 ample twi_com dat file Com1 COM1 2400 N 8 1 BIN DS0 CD0 CSO Com2 COM2 2400 N 8 1 BIN DSO CD0 CSO Modem COM1 2400 N 8 1 BIN DSO CD0 CSO ATEOQQOV1M1X4S0 0 DT1 214 234 1309 After you make your selection the following screen will appear Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual TWI Main Menu Report Output Retrieve Log Data Display Log Data Purge Log Data Display Cal Data Graphic Log Data Print Log Data Get Version again Set Date Time Exit Program Pressing F1 enables the user to communicate with the WRL using all the commands referred to in the Communicating
22. is sensor has one blue cable which must be connected into the weather station The optional outside temperature humidity pagoda should be mounted about two feet under the wind sensor Again we suggest at least a ten foot mast to overcome the artificially high readings generated by a hot roof The rain collector is normally mounted on the mast It should be mounted as low as possible to reduce windage and to limit movement of the mast which can cause false readings The collector should be mounted in a manner that allows rain to enter the collector unencumbered by surrounding obstacles Use a bubble level to make sure that the collector is perfectly level with the ground Failure to level the collector will cause inaccurate rainfall readings The rain collector has one blue cable which must be connected to the console Plug the sensor cables and the serial cable into the connectors in the rear of the console Plug the wall transformer into a 120V wall socket to power up the unit Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual Report O Date Time Hold O Windchill Hold Temperature Comfort O Baroreter Hurmidity Hold Q EEEE O ww O SLID O O Min Max Scale lamor Fle Grade OO O Weather Report O g a Anerag 8 S A V n4906 V Als index top FUNCTIONKEYS Select The select key when pressed at the same time as the report key puts the unit into time date and lunar tide cycle set m
23. nsor outputs at 75 humidity The humidity calibration numbers are found on the humidity temperature sensor and on the back of the instrument console These calibration numbers are supplied to us by the manufacturer of the sensor and are normally not changed Prints Pressing select and average at the same time puts the unit into print set mode The unit first displays the report intervalin number of hours between lines of printed information Press the maximum and minimum keys to change display index top Pressing select a second time displays the number of minutes between lines of information Press the maximum and minimum keys to change the display Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual Press select a third time and the minimum maximum and form feed options 0 through 7 may be selected as illustrated in the table below SETTING IN MAX FORM FEED RAIN RATE OFF OFF OFF ON OFF OFF OFF ON When rain rate is off term rain is substituted Press select a fourth time to select the baud rate of the serial output Press the maximum and minimum keys to change the display Press select a fifth time to select log interval hours The log interval tells the Weather Report to send data to the internal memory and at what interval to do so Press the maximum or minimum to change the display Press select a sixth time to select the log interval minutes Press the maximum or minimum to chang
24. ode When the select and scale keys are pressed at the same time the unit enters the calibration set mode When the select and average keys are pressed at the same time the unit enters the printer set mode When select and last are pressed at the same time the instrument enters rainfall history set Clear The clearkey when depressed causes the unit to display the date and time of the last memory clear Pressing clear and minimum at the same time clears the unit s memory Pressing clear and maximum at the same time also clears the unit s memory Pressing clear and last rain clears the term rainfall Minimum The minimum key when repeatedly depressed steps through wind speed wind direction temperature barometric pressure humidity and rainfall rate displaying the minimum reading of each of these functions since the last time the unit memory was cleared In addition to the minimum reading the unit displays the date and time of its occurrence The date and time display must not be on hold in order to display both date and time Maximum The maximum key functions the same as the minimum key but with maximum readings Scale The scale key changes the displays from reading in English values to those of Metric values The inch light near the rain display is on when the instrument is in English mode The Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual English to Metric equivalents are miles per hour or Knots to
25. ove counterclockwise 9 Rain collector type most rain collectors are type 2 including TWI O turns of the rain collector counter 10 Rain increment value the value that is added for each click of the rain collector most rain collectors should be set for 0 01 including TWI 11 Daily rainfall history register 12 Monthly rainfall history register 13 Term rainfall history register 14 Report output interval HI sets the automatic data dump interval to the RS232 Value can be in Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual hours or minutes depending on the setting of the report interval units 19 15 Report output interval LO sets the automatic data dump interval to the RS232 Value can be in minutes or seconds depending on the setting of the report interval unites 19 16 Report Min Max turns on the min max function for the log and the report output for the printer 17 Report end of day sends a formfeed at midnight to the RS 232 for the printer 18 Report Interval Units sets the ouput values to minutes or seconds 19 Sets which command the report output will use r R qor Q 20 Sets the years 21 Sets the month 22 Sets day of month 23 Sets the day of the week 7 Sunday 2 Monday 3 Tuesday 4 Wednesday 5 Thursday 6 Friday 7 Sunday 24 Sets hours in 24 hour format 25 Sets minutes 26 Sets Seconds 27 Sets the logging interval hours saves data in the units memo
26. r immobilize the wind vane by hand Enter calibration mode on the display see page 9 and step the direction around using the min or max key or load the optional TWI_LOG program see page 13 in your computer and change item 7 wind dir offset until the proper direction achieved The outside temperature humidity sensor should be mounted under the eaves out of the rain and sun The humidity sensor is light sensitive if the humidity sensor cover is left off allowing light to hit the sensor element the humidity will read 0 If it is desirable to mount the temperature humidity sensor directly on the mast the optional pagoda housing should be secured at the time of purchase of the Weather Report One of the best places to mount this sensor is on the north side of the building where it is shaded most of the year Remember the sensor will detect the exact temperature and humidity where the sensor is located If it is located above an air conditioning unit it will read that artificially hot air location is very important Ideally the outside temperature humidity sensor should be mounted with the sensor facing down Mounting the sensor vertically is also satisfactory Never mount the sensor face up exposed to rain Water will collect in the sensor creating inaccurate readings Remove the four screws securing the cover of the temperature humidity sensor exposing two mounting holes Mount the sensor utilizing the screws provided replace the cover Th
27. ry when set 28 Sets the logging interval minutes 29 0 for English or 1 for Metric scale 30 Sets the ID number 0 through 255 31 Displays number of power ups 0 through 255 32 Displays the rainfall rate interval in minutes 33 Wind Speed scale changes wind speed to knots when set to 1 A 0 setting when in English will output miles per hour and a 0 when in metric will output kilometers per hour 34 Time display when set to 0 the unit will display time in a 24 hour military format When set to 1 the unit will be in AM or PM 35 Aux disable when set to 0 will cycle the temperature display through three values indoor temp outdoor temp and the aux value aux temperature or solar When Aux disable is set to 1 the temperature display will cycle through indoor and outdoor temperatures only 36 Wind speed and direction when set to 0 the unit outputs one minute average wind data to the RS 232 port When set to 1 the output is instant This setting does not effect the display which has its own button 37 Selects baud rate 0 38 4 1 19 2 2 9600 3 4800 4 2400 5 1200 6 600 7 300 Warning Do not change this number unless you understand that you will lose communication with the WRL until the host baud rate is also changed Also note that TWI_LOG does not support a baud rate fo 38 4 Pressing F6 will graph the data if you have a VGA monitor Pressing F7 will take the current binary data file and convert it to a text file The
28. s not apply Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual to your area any cycle that lasts between 1 and 99 hours may be displayed Clearing the Memories When the clear button is depressed and held the unit will display the date and time the instrument s memory was last cleared In order to clear the memories the clear and minimum button must be pushed at the same time The items cleared are as follow minimum and maximum wind speed temperature indoor outdoor and aux barometric pressure and humidity Daily rainfall is cleared automatically at midnight every night Monthly rainfall is cleared automatically at midnight on the last day of the month Term rainfall may be cleared at any time by the user by depressing clear and last rain at the same time The term rainfall register may be used for any term desired by the user but is most commonly used to account for yearly rainfall The memories can also be changed by using TWI_LOG Rainfall history mode If the information is available the actual daily monthly and term rainfall amounts that occurred before the installation of the weather station may be manually entered To do so enter the rain history mode by pressing select and last at the same time The first item to appear will be the dally rainfall total Press minimum or maximum to input the correct amount Press select again and the monthly rainfall amount will appear Press select again and t
29. splay the time in military hour style Press the maximum button to advance the hour or minimum to retard the hour Report Cy D i 23i a Hod C Mo Press select a sixth time note the colon between the hours and minutes and the unit will display minutes Press the maximum or minimum buttons Feport 0 SE 42 e Hold Mo Press select a seventh time note only the right two digits the unit will display seconds Press the maximum or minimum buttons to set the seconds note the seconds is updated on the display only when the maximum or minimum button is being depressed Feport 0 2 22 i Hold a Press select a eighth time a single dot at the bottom separates the hour and minute the lunar tide clock will display the number of hours in a cycle Press the maximum or minimum buttons to set the hours of the cycle explained in the Lunar Tide section Report Cy o Hold C 2 a AETERNE ESETET ETETE EELT ETETELTETETEL Press select an ninth time the single dot remains at the bottom separating the hour and minute the lunar tide clock will display the minutes of the cycle Press the maximum or minimum buttons to set the minutes of the cycle Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual Report Hold 5 1 Press select a tenth time the single dot is now located at the top between the hour and minute the peak of the cycle hour usually high tide will
30. tion so that you may become familiar with the operation of the instrument The WR 25 uses three sensors to gather weather data The wind direction and speed sensor the temperature and humidity sensor a small black box and the rain collector see figure 1 The wind sensor and the rain collector are designed to mount to a television type mast not provided The cables from the sensors attach to the console via RJ 45 connectors in the rear of the unit Each sensor has its own color coded plug yellow for wind blue for humidity temperature and blue for rain The blue connectors are interchangeable with each other Texas Weather Instruments Inc WR 25 Instruction Manual WR 25 Instruction Manual DURING INSTALLATION OF THE VARIOUS SENSORSI 0 S POWERUNES The WR 25 wind direction and speed sensor is normally mounted on television type antenna masts see Figure 1 For best results the wind sensor should be mounted at least 10 feet above the roof of the building The higher the installation the more accurate the readings There is one yellow cable consisting of eight wires that must be strung from the wind sensor to the console The wind direction sensor is calibrated at the factory and should be installed with the mounting arm pointed to the North The wind sensor arm can be mounted and calibrated in any direction but it is more convenient to use North as a reference If calibration is necessary after the unit is already mounted pick a calm day o
31. with the WRL page 14 Section of this manual Pressing F2 instructs the computer to retrieve data from the WRL and place that data in a file on the disk drive Only new data will be written to disk during successive retrievals Any number of WRL s or WPS can be accessed and their data will be put in different files on the drive There will be two files written on to your drive log_day and log_rec Log_ day has the minimum and maximum values and log_rec has the individual records Each file has a file extenuation that corresponds to the ID number of each weather unit The ID number can be changed through the calibration F5 routine in Twi_Log For example if you downloaded data from a unit with the ID of 124 the data for that unit would be found in og_rec 124 Pressing F3 displays the data written on disk Press the up arrow key to go up or down one record at a time press the page up or down keys to display one screen of data at a time press the home or end key to go to the top or bottom of the file The delete key takes all records prior to that displayed at the top of the screen and transfers that data to an archive file arc_log file The extension will be the same as the unit number The data that is archived is removed from the current display and log file Pressing F4 purges any duplicate data written on disk Pressing F5 the calibration screen Texas Weather Instruments Inc WR 25 Instruction M
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