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©Copyright 2013, Ambient LLC. All Rights Reserved. 

 

 

 

Page 11 

4.6 Best Practices for Wireless Communication 

Wireless  communication  is  susceptible  to  interference,  distance,  walls  and  metal  barriers.  We 
recommend the following best practices for trouble free wireless communication. 

1.

 

Electro-Magnetic  Interference  (EMI)

.  Keep  the  console  several  feet  away  from  computer 

monitors and TVs. 

2.

 

Radio  Frequency  Interference  (RFI).

  If  you  have  other  433  MHz  devices  and 

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. 

4.7 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. 

Note: 

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. 
 
Prior  to  entering  the  calibration  mode,  press  the 

C

  button  until  the  channel  indication 

arrow 

  is pointing at the appropriate channel. 

 
To enter the temperature calibration mode, press and hold the 

ALARM/ADJUST and C   

buttons  at  the  same  time  for  5  seconds  and  the  temperature  value  will  begin  flashing.  Press  the 

C

  button  to  increase  the  temperature  and  the 

CLEAR/-

  button  to  decrease  the 

temperature  reading  in  0.1°  increments.  To  rapidly  increase  (or  decrease)  the  temperature  reading, 
press and hold the 

C

 or 

CLEAR/-

 button. 

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

ALARM/ADJUST

 

button. 
 
Once  the  displayed  temperature  equals  the  calibrated  source,  press and hold  the 

ALARM/ADJUST 

button for three seconds, or wait 15 seconds for timeout, and the temperature value will stop flashing. 
 

Discussion

:

 

Temperature errors can occur when a sensor is placed too close to a heat source (such 

as a building structure, the ground or trees). 

Содержание WS-09

Страница 1: ...ounting 8 4 Console Operation 9 4 1 Channel Selection 9 4 2 Min and Max Alarm 9 4 2 1 Turning On and Off the Alarm 9 4 2 2 Alarm Defaults 10 4 2 3 Setting the Min and Max Alarm 10 4 2 4 Viewing the Min and Max Alarms 10 4 3 Reset Max Min 10 4 4 Temperature Units of Measure 10 4 5 Sensor Search Mode 10 4 6 Best Practices for Wireless Communication 11 4 7 Adjustment or Calibration 11 5 Glossary of T...

Страница 2: ...reezer In addition to the refrigerator freezer application the probe thermometer can be placed in any medium where temperature is required including ground temperature air temperature and water temperature 2 Getting Started Note The power up sequence must be performed in the order shown in this section insert batteries in the remote transmitter s first Display Console second The WS 09 weather stat...

Страница 3: ...the first transmitter to Channel 1 refrigerator and the second transmitter to Channel 2 freezer Figure 2 displays all four switches in the OFF position factory default setting Figure 2 3 Channel Number The WS 09 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 tr...

Страница 4: ...sor is transmitting data 7 Verify the correct channel number CH and temperature units of 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 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 2 Display Console Set Up 1 Mov...

Страница 5: ...be constantly displayed for each sensor If you have more than two remote sensors additional channels 3 8 are supported the display will automatically toggle between sensors until all sensors have reported in Do not touch any buttons until all of the remote sensors has reported in or the radio search icon is no longer visible otherwise the remote sensor search mode will be terminated When the remot...

Страница 6: ...r Temperature Indicator 17 Temperature Channels 3 4 5 6 7 8 18 Scroll mode indicator 19 Channel indicator 20 Low battery indicator 21 Channel 2 Temperature 22 Channel 2 Indicator 23 Low battery indicator 2 2 2 Sensor Operation Verification Verify the temperature sensors match closely with the console and sensor array in the same location about 5 to 10 apart The sensors should be within 2 F the acc...

Страница 7: ...talling the sensor to the outside of the refrigerator freezer If the refrigerator freezer is a metal box the wireless signal cannot escape and the sensors must be placed on the outside Figure 6 To attach the suction cup to the remote sensor reference Figure 7 1 Locate the mounting hole on the back of the unit 2 Press the suction cup into the mounting hole 3 While applying pressure with your thumb ...

Страница 8: ...rface is smooth and clean so that suction cups will not fall off It is recommended to wet the surface of the suction cup first to improve the seal 3 2 Wall Mounting The remote sensor can be mounted to a wall or horizontal surface to measure any temperature medium including air water and soil Use a screw or nail not included to affix the remote sensor to the wall as shown in Figure 8 Note If measur...

Страница 9: ...n and max temperature alarm on the Channel 1 and Channel 2 thermometers If the alarm is exceeded for more than 10 minutes as audible alert will occur and the alarm value will flash To silence the alarm press any button To set the alarm or adjust the min and max alarm settings press the CHANNEL button until the channel indication arrow points at the selected channel 4 2 1 Turning On and Off the Ala...

Страница 10: ...ointing at the appropriate channel press and hold the CLEAR button for 3 seconds to restore the MAX and MIN values to the current value 4 4Temperature Units of Measure With the indicator arrow pointing at the indoor temperature channel press and hold the ALARM button for 3 seconds to change between degrees Celsius and degrees Fahrenheit units of measure 4 5 Sensor Search Mode If any of the sensor ...

Страница 11: ...ent 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 newspa...

Страница 12: ... value can be measured 6 Specifications 6 1 Wireless Specifications Line of sight wireless transmission in open air 300 feet 100 feet under most conditions Frequency 433 MHz Update Rate 60 seconds 6 2 Measurement Specifications The following table provides specifications for the measured parameters Measurement Range Accuracy Resolution Indoor Temperature 32 to 140 F 1 F 0 1 F Channel 1 8 Temperatu...

Страница 13: ... batteries in the remote probe thermometer For cold weather environments install lithium batteries Make sure the remote sensors are not transmitting through solid metal acts as an RF shield or earth barrier down a hill Move the display console around electrical noise generating devices such as computers TVs and other wireless transmitters or receivers Move the remote sensor to a higher location Mo...

Страница 14: ...al of electronic waste in wild country and or in unauthorized grounds strongly damages the environment Reading the User manual is highly recommended The manufacturer and supplier cannot accept any responsibility for any incorrect readings and any consequences that occur should an inaccurate reading take place This product is designed for use in the home only as indication of weather conditions Thi...

Страница 15: ...ear 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 receive warranty service the purchaser must contact Ambient LLC for problem determination and service procedures Warranty service can only be performed ...

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