WeatherHawk SM-28 Skymaster Wind/Weather Meter - Manual (Page 6)

Barometric Pressure:
You may calibrate your unit in mb or inHg. Be sure to select your preferred mode prior to
calibration. While the unit is off, press and hold the on/off key for 2 seconds. The screen will
display current pressure with a flashing “BAR” indicator on the left side. When you see the
indicator flashing, release the on/off button. Press the on/off key to go up in units, press the
mode key to go down in units. After calibrating barometric pressure, wait 5 seconds and the
unit will automatically go into altitude calibration. If you do not wish to calibrate altitude,
simply leave the unit on and it will return to its normal operating mode. The changes have
now been stored until you recalibrate it.
Altitude: First obtain your local altitude.
Note: You may calibrate your altimeter in meters or feet. Be sure to select the mode prior to
calibration. With the unit off, press and hold the on/off key for 2 seconds. You will see the
flashing “BAR” indicator on the left. After flashing for 5 seconds, it automatically moves to
Altitude calibration mode and you will see the current altitude and a flashing “ALT” indicator.
Press the on/off key to go up in units, press the mode key to go down in units. When you
have completed the calibration, the unit will automatically return to normal operation in a few
seconds. The changes have now been stored until you recalibrate it.
Humidity
NOTE: The relative humidity comes factory calibrated.
Figure A Figure B
First, locate the calibration sticker that was supplied with your Skymaster. It will have two
numbers displayed. You will need to calibrate your unit to these numbers.