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Texas Instruments WR-25 User Manual
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Texas Instruments WR-25 User Manual

Texas Instruments WR-25 User Manual

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WR-25 Instruction Manual
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.
INSTALLATION
We strongly suggest that all the weather station sensors be connected to the weather station
and tested prior to installation 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.
Weather Report ™
Digital Weather Station
WR-25
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WR-25 Instruction Manual

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Summary of Contents for Texas Instruments WR-25

  • Page 1 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).
  • Page 2 DURING INSTALLATION OF THE VARIOUS SENSORS!!! 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.
  • Page 3 WR-25 Instruction Manual OPERATION FUNCTION KEYS Select The select key, when pressed at the same time as the report key, puts the unit into time/date and lunar/tide cycle 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.
  • Page 4 WR-25 Instruction Manual English to Metric equivalents are miles per hour or Knots to 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.
  • Page 5 WR-25 Instruction Manual 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. 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.
  • Page 6 WR-25 Instruction Manual Press select a fifth time (note the colon between the hours and minutes), and the unit will display the time in military hour style. Press the maximum button to advance the hour or minimum to retard the hour.
  • Page 7 WR-25 Instruction Manual 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 be displayed. Change as desired. 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.
  • Page 8 WR-25 Instruction Manual Press select a second time and the unit displays the indoor temperature. Press the maximum or minimum key to enter the actual temperature. Press select a third time - the unit displays the outdoor temperature. Press the maximum or minimum key to enter the actual temperature.
  • Page 9 WR-25 Instruction Manual 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 reference for more information).
  • Page 10 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).
  • Page 11 WR-25 Instruction Manual V- Firmware version number S- Firmware Serial# I- Unit ID number C- Unit responds with a daily minimum and maximum of all parameters, then clears. The rainfall rate is present rather than term rain. Sample MIN 07/24/90 SW 00MPH 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"...
  • Page 12 WR-25 Instruction Manual 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.
  • Page 13 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 Communicating with the WRL (page 14) Section of this manual.
  • Page 14 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 8 wind dir. offset 2 rain inc flag 10 0.01 rain inc value 11 0.00 rain fall: daily...
  • Page 15 WR-25 Instruction Manual hours or minutes depending on the setting of the Report output interval 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).
  • Page 16 WR-25 Instruction Manual Pressing F10 will exit the program. Direct data retrieval from a DOS prompt may be accomplished by entering TWI_LOG ? /dl, where the ? equals the line of the unit as defined in the twi_com.dat file. For example entering TWI_LOG 1 /dl would access in our current setup the Green unit.
  • Page 17 (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.
  • Page 18 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.
  • Page 19 WR-25 Instruction Manual SETTING MIN/MAX When rain rate is off, term rain is substituted. 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.
  • Page 20 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.

  • Page 21: Shielded Cable

    WR-25 Instruction Manual 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.
  • Page 22 WR-25 Instruction Manual 1/6/96 Troubleshooting 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).
  • Page 23 WR-25 Instruction Manual Barometric Pressure, 20 Barometric pressure calibration, 16 baud rate, 17 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...
  • Page 24 WR-25 Instruction Manual lunar/tide cycle, 4 Maximum, 4 Minimum, 4 minutes, 17 modem adapter, 19 Modem Installation, 19 month, 17 Normal Operation, 1 OPERATION, 4 Outside temperature calibration, 16 pagoda, Print Set, 11 prn_day.???, 18 prn_rec.???, 18 rain collector, Rain collector...
  • Page 25 WR-25 Instruction Manual Special Key Functions, 22 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, Wind direction calibration, 16 Wind Speed...