Version 1.1
©Copyright 2014, Ambient LLC. All Rights Reserved.
Page 13
line of sight.
The following is a table of reception loss vs. the transmission medium. Each “wall” or obstruction
decreases the transmission range by the factor shown below.
Medium
RF Signal Strength Reduction
Glass (untreated)
5-15%
Plastics
10-15%
Wood
10-40%
Brick
10-40%
Concrete
40-80%
Metal
90-100%
5.7 Adjustment or Calibration
Note:
The calibrated value can only be adjusted on the console. The remote sensor(s) always
displays the un-calibrated or measured value.
The purpose of calibration is to fine tune or correct for any sensor error associated with the devices
margin of error. The measurement can be adjusted from the console to calibrate to a known source.
Calibration is only useful if you have a known calibrated source you can compare it against, and is
optional. This section discusses practices, procedures and sources for sensor calibration to reduce
manufacturing and degradation errors. Do not compare your readings obtained from sources such as
the internet, radio, television or newspapers. They are in a different location and typically update once
per hour.
The purpose of your weather station is to measure conditions of your surroundings, which vary
significantly from location to location.
5.7.1 Remote Sensor Temperature Calibration
Prior to entering the calibration mode, press the
CH/+
button to select the remote temperature sensor
you wish to adjust.
To enter the temperature calibration mode, press and hold the
SET and CH/+
buttons at the same time
for 5 seconds and the remote temperature value will begin flashing. Press the
CH/+
button to increase
the temperature and the
MIN/MAX
button to decrease the temperature reading in 0.1° increments. To
rapidly increase (or decrease) the temperature reading, press and hold the
CH/+
or
MIN/MAX
button.
To return the temperature to the actual or uncalibrated measurement, press the
SET
button.
Once the displayed temperature equals the calibrated source, press and hold the
SET
button for three
seconds, or wait 15 seconds for timeout, and the temperature value will stop flashing.
5.7.2 Indoor (Console) Temperature Calibration
To enter the indoor temperature calibration mode, press and hold the
SET and MIN/MAX
buttons at
the same time for 5 seconds and the IN-TEMP temperature value will begin flashing. Press the
CH/+
button to increase the temperature and the
MIN/MAX
button to decrease the temperature reading in
0.1° increments. To rapidly increase (or decrease) the temperature reading, press and hold the
CH/+
or
MIN/MAX
button.
