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Texas Weather Instruments Weather Report WR-25 Instruction Manual

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Weather Report ™
Digital Weather Station
WR-25
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.
Texas Weather Instruments, Inc.
1
WR-25 Instruction Manual

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Summary of Contents for Texas Weather Instruments Weather Report WR-25

  • Page 1 Weather Report ™ Digital Weather Station WR-25 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...

  • Page 2: Installation

    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).
  • Page 3 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...
  • Page 4 Report Hold Date/Time Windchill Temperature Hold Comfort Hold Barometer/Humidity Average Last Hold Rainfall Select Clear Min Max Scale Weather Report Texas Weather Instruments, Inc. WR-25 Instruction Manual...

  • Page 5: Operation

    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 Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 6 When pressing the average key and the select key and the select key at the same time, the unit enters into the printer set mode. Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 7 Hold 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 - - .25 Hold Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 8 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). Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 9 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 Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 10 Windchill - -.28 Indoor O utdoor Hold 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...
  • Page 11 These calibration numbers are supplied to us by the manufacturer of the sensor and are normally not changed. Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 12 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 Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 13 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 14 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: Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 15 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. Sample twi_com.dat file Com1 COM1:2400,N,8,1,BIN,DS0,CD0,CS0 Com2 COM2:2400,N,8,1,BIN,DS0,CD0,CS0 Modem COM1:2400,N,8,1,BIN,DS0,CD0,CS0 ATE0Q0V1M1X4S0=0 DT1,214,234-1309 Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 16 ??? 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. Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 17 8) Wind direction calibration, increase number to move clockwise or decrease number to move counterclockwise. 9) Rain collector type (most rain collectors are type 2 including TWI, 0 turns of the rain collector counter) Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 18 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 Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 19 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 Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 20 Pin 8 . . . 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.
  • Page 21 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.
  • Page 22 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.
  • Page 23 = 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 Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 24 Press select again and the monthly rainfall amount will appear. Press select again and the unit will display term rainfall, change as desired. Press select again and the unit will return to normal mode. Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 25 Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 26 Changes or modifications 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. 1/6/96 Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 27 Rain collector appears to be counting double that of the actual rainfall. Check that the rainfall count is set on 2. If you still experience problems, please call 800-284-0245 and ask for Technical Support, we will be happy to help you. Texas Weather Instruments, Inc. WR-25 Instruction Manual...
  • Page 28 19 Clearing the Memories, 23 Modem Installation, 19 Comfort, 5 month, 17 Command Characters, 12 Communicating with the WR-25, 11 Computer Interface, 20 Control Options, 18 Normal Operation, 1 Daily rainfall history register, 17 OPERATION, 4 daily rainfall register, 21...
  • Page 29 RS-232, 12, 19, 20, 21, 22 Wind direction calibration, 16 Wind Speed scale, 17 Windchill, 5, 13 Scale, 4, 17 Seconds, 17 Select, 4 Special Key Functions, 22 years, 17 Temperature, 20 temperature/humidity sensor, 2 Texas Weather Instruments, Inc. WR-25 Instruction Manual...