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 accurate 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
Rainfall
The
Setting 0 turns the rainfall counter off. Setting 1 or 2 tells the
Setting 3 tells the
THE PROPER SETTING FOR THE TEXAS WEATHER 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
Texas Weather Instruments, Inc. |