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Version 1.0  

 

©Copyright 2013, Ambient LLC. All Rights Reserved. 

 

 

 

Page 9 

communication  is  intermittent,  try  turning  off  these  other  devices  for  troubleshooting 
purposes.  You  may  need  to  relocate  the  transmitters  or  receivers  to  avoid  intermittent 
communication. 

3.

 

Line of Sight Rating.

 This device is rated at 300 feet line of sight (no interference, barriers or 

walls)  but  typically  you  will  get  100  feet  maximum  under  most  real-world  installations, 
which include passing through barriers or walls. 

4.

 

Metal  Barriers.

  Radio  frequency  will  not  pass  through  metal  barriers  such  as  aluminum 

siding. If you have metal siding, align the remote and console through a window to get a clear 
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% 

5.6 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. 

Note: 

The  measured  humidity  range  is  between  10  and  99%.  Humidity  cannot  be  accurately 

measured outside of this range. Thus, the humidity cannot be calibrated below 10% or above 99%. 
 
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. 

5.6.1

 

Humidity Calibration 

Prior  to  entering  the  calibration  mode,  press  the 

C

  button  to  select  the  humidity  sensor 

you wish to adjust.   
 
To enter the humidity calibration mode, press and hold the 

ADJUST and MIN/MAX

 buttons at the 

same time for 5 seconds and the humidity value will begin flashing. Press the 

C

 button to 

increase the humidity and the 

MIN/MAX/-

 button to decrease the humidity reading in 1% increments. 

To  rapidly  increase  (or  decrease)  the  humidity  reading,  press  and  hold  the 

C

  or 

MIN/MAX/-

 button. 

 
To return the humidity to the actual or uncalibrated measurement, press the 

ADJUST

 button. 

Summary of Contents for WS-07

Page 1: ...or Installation 7 4 Display Features 7 4 1 Comfort Icon 7 4 2 Rate of Change Icon 7 5 Console Operation 7 5 1 Min Max Mode 8 5 2 Indoor Outdoor Channel Selection 8 5 3 Temperature Units of Measure 8 5 4 Sensor Search Mode 8 5 5 Best Practices for Wireless Communication 8 5 6 Adjustment or Calibration 9 5 6 1 Humidity Calibration 9 5 6 2 Temperature Calibration 10 6 Glossary of Terms 11 7 Specifica...

Page 2: ...nsert batteries in the remote transmitter s first Display Console second The WS 07 weather station consists of a display console receiver and a thermo hygrometer remote transmitter 2 1 Parts List QTY Item 1 Display Console Frame Dimensions LxHxW 4 50 x 5 0 x 1 00 in LCD Dimensions LxW 3 75 x 3 50 LCD Segment Height 1 25 inches 1 Thermo hygrometer transmitter FT007TH Dimensions LxHxW 4 5 x 2 0 x 0 ...

Page 3: ...he inside cover of the lid of the transmitter Figure 2 displays all four switches in the OFF position factory default setting Figure 2 3 Channel Number The WS 07 supports up to eight transmitters To set each channel number the default is Channel 1 change Dip Switches 1 2 and 3 as referenced in Table 1 4 Temperature Units of Measure To change the transmitter display units of measure F vs C change D...

Page 4: ...measure F vs C are on the display as shown in Figure 3 Figure 3 1 temperature 2 temperature units F vs C 3 channel number 4 relative humidity 8 Close the battery door Make sure the gasket around the battery compartment is properly seated in its trace prior to closing the door Tighten the set screw 2 3 Display Console Set Up 1 Move the remote thermo hygrometer s about 5 to 10 away from the display ...

Page 5: ... If you have more than once remote sensor up to eight remotes are supported the display will automatically toggle between sensors until all sensors have reported in Do not touch any buttons until the remote sensor has reported in or the radio search icon is no longer on otherwise the remote sensor search mode will be terminated When the remote sensor temperature and humidity has been received the ...

Page 6: ...oor humidity match closely with the console and sensor array in the same location about 5 to 10 apart The sensors should be within 10 the accuracy is 5 Allow about 30 minutes for both sensors to stabilize The humidity can be adjusted or calibrated later to match each other a known source Verify the indoor and outdoor temperature match closely with the console and sensor array in the same location ...

Page 7: ...ranges specified in Figure 7 The icon is displayed for indoor humidity remote channel 1 humidity and optional remote channels 2 through 8 humidity RH 45 RH 45 65 RH 65 Dry Comfortable Wet Figure 7 4 2 Rate of Change Icon The rate of change icon detects rapid changes in temperature and humidity If the arrow points upward the temperature is increasing at a rate of 2 F per 30 minutes or greater or hu...

Page 8: ...tween degrees Celsius and degrees Fahrenheit press and hold the MIN MAX button for 3 seconds 5 4 Sensor Search Mode If any of the sensor communication is lost dashes will be displayed on the screen To reacquire the signal 1 If a specific channel is lost press the CHANNEL button to display this channel then Press and hold the CHANNEL button for 3 seconds and the remote search icon will be constantl...

Page 9: ...e of this range Thus the humidity cannot be calibrated below 10 or above 99 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 disc...

Page 10: ...nd the temperature value will begin flashing Press the CHANNEL 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 CHANNEL or MIN MAX button To return the temperature to the actual or uncalibrated measurement press the ADJUST button Once the displayed temperature e...

Page 11: ...idity 10 to 99 5 only guaranteed between 20 to 90 1 Outdoor Humidity 10 to 99 5 only guaranteed between 20 to 90 1 7 3 Power Consumption Base station display console 4 x AAA 1 5V Alkaline or Lithium batteries not included Remote sensor 2 x AAA 1 5V Alkaline or Lithium batteries not included Battery life Minimum 12 months for base station with one sensor and excellent reception Intermittent recepti...

Page 12: ...ectrical noise generating devices such as computers TVs and other wireless transmitters or receivers Move the remote sensor to a higher location Move the remote sensor to a closer location Temperature sensor reads too high in the day time Make sure the thermo hygrometer is mounted in a shaded area on the north facing wall Consider the following radiation shield if this is not possible http www amb...

Page 13: ...rometers use salt slurry formula to accurately calibrate the indoor and outdoor hygrometers 10 Liability Disclaimer Please help in the preservation of the environment and return used batteries to an authorized depot The electrical and electronic wastes contain hazardous substances Disposal of electronic waste in wild country and or in unauthorized grounds strongly damages the environment Reading t...

Page 14: ...to which the receiver is connected Consult the dealer or an experienced radio TV technician for help 12 Warranty Information Ambient LLC provides a 1 year limited warranty on this product against manufacturing defects in materials and workmanship This limited warranty begins on the original date of purchase is valid only on products purchased and only to the original purchaser of this product To r...

Page 15: ...Version 1 0 Copyright 2013 Ambient LLC All Rights Reserved Page 15 ...

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