Unit Connection Technology FT012TH Wireless Indoor Sensor User Manual FT012TH manual C

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FT012TH Wireless Indoor 8-Channel Thermo-Hygrometer
Introduction
Thank you for your purchase of the FT012TH Wireless Indoor 8-Channel Thermo-Hygrometer with
Display. The following user guide provides step by step instructions for installation, operation and
troubleshooting.
1.1 Indoor Thermo­Hygrometer Sensor Set Up
1. Remove the battery door on the back of the display 。1. Insert two AAA (alkaline or
lithium, avoid rechargeable) batteries in the back of the indoor sensor.
Figure 1
2. Insert two AAA batteries.
After inserting the batteries, All of the LCD segments will light up for a few seconds to verify all
icon flash once per 60 seconds thereafter. Each time it
segments are operating properly. and then
flashes, the sensor is transmitting data.
3. Verify the correct channel number (CH) and temperature units of measure (°F vs. °C) are on
the display, as shown in Figure 2.
Figure 2
1. Temperature
2. Temperature units (°F or °C)
3. Temperature, Rate of Change indicator
4. Temperature Calibrated Icon (when the
calibration is displayed )
5. Emission Icon (flashes when updating)
6. Humidity, Rate of Change indicator
7. Min/Max Clears daily mode
8. Low power indicator
9. Humidity Calibrated Icon (when the calibration is
displayed )
10. Humidity Comfort Colorful Icon
11. Relative Humidity (%)
12. Channel 1,2,3,4,5,6,7,8 indictor
13. Min/Max Record mode
4. Close the battery door. on the table or on the wall.
2 Display Features
2.1 Comfort Colorful Icon
The comfort icon is based on humidity ranges specified in Figure 3.
RH<45%
Dry
RH 45%~65%
Comfortable
Figure 3
RH >65%
Wet
2.2 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°C per 30 minutes (or greater), or humidity
is increasing at a rate of +5% per 30 minutes (or greater). If the arrow points downward, the
temperature is decreasing at a rate of -2°C per 30 minutes (or less), or humidity is decreasing at a rate
of -5% per 30 minutes (or less).
3 Indoor Thermo­Hygrometer Sensor Operation
Note: The indoor sensor has three buttons for easy operation: MIN/MAX/- button, SET button,
and CH/+ button.
3.1
Indoor Sensor Channel Setting
Press and hold the CH/+ button 3 seconds to switch the display scroll mode
. In scroll mode,
press the CH/+ button display between the 1 through 8 channel, Press and hold the CH/+ button 3
seconds to exit channel setting, disappear
scroll mode.
Note: BEFORE inserting the receiver batteries, To set each indoor sensor channel number
FIRST (the default is Channel 1 , Outdoor sensor default is Channel 1) ,The FT012TH supports up to
eight transmitters.
3.2
Min/Max Mode
The Min/Max mode displays the minimum and maximum temperature and humidity (since reset of the
unit) for the indoor sensor.
1. Display Maximum. Press the MIN/MAX button once to display the maximum. The MAX
icon will be displayed.
2. Clear Maximum. To reset the maximum values to the current values, press and hold the
MIN/MAX button for 3 seconds.
3. Display Minimum. Press the MIN/MAX button again to display the minimum. The MIN
icon will be displayed.
4. Clear Minimum. To reset the minimum values to the current values, press and hold the
MIN/MAX button for 3 seconds.
To return to normal mode, press the MIN/MAX button again.
3.3
Clearing Min/Max Daily
The minimum and maximum can be set to clear daily (at midnight) or manually. Press and hold the
SET button for 3 seconds to switch between
and Clears Manually.
When you manually clear the minimum and maximum, the Clears 24h function will clear every 0:00
hours from the time you clear it.
3.4
Temperature Units of Measure
The default temperature units of measure are degrees Celsius. To toggle between degrees Celsius and
degrees Fahrenheit, press and hold the MIN/MAX button for 3 seconds in normal mode.
3.5
Backlight Operation
To temporarily turn on the back light for five seconds, press the any button on the indoor sensor.
Adjustment or Calibration
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.
4.1 Humidity Calibration
To enter the humidity calibration mode, press and hold the SET and MIN/MAX buttons at the same
time for 3 seconds and the humidity value will begin flashing. Press the CH/+ 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 CH/+ or MIN/MAX/- button.
To return the humidity to the actual or uncalibrated measurement, press the SET button.
will be displayed when the humidity calibrated measurement.
Once the displayed humidity equals the calibrated source, press and hold the SET button for three
seconds, or wait 15 seconds for timeout, and the humidity value will stop flashing.
4.2 Temperature Calibration
To enter the temperature calibration mode, press and hold the SET and CH/+ buttons for 3 seconds
and the 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.
will be displayed when the humidity calibrated measurement.
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.
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).
To calibrate temperature, we recommend a mercury or red spirit (fluid) thermometer. Bi-metal (dial)
and other digital thermometers are not a good source and have their own margin of error. Using a local
weather station in your area is also a poor source due to changes in location, timing (airport weather
stations are only updated once per hour) and possible calibration errors (many official weather stations
are not properly installed and calibrated).
Place the sensor in a shaded, controlled environment next to the fluid thermometer, and allow the
sensor to stabilize for 48 hours. Compare this temperature to the fluid thermometer and adjust the
console to match the fluid thermometer.
4.3 Sensor Operation Verification
Verify the indoor and outdoor 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.
Verify the indoor and outdoor temperature match closely with the console and sensor array in the same
location (about 1.5m to 3m apart). The sensors should be within 2°C(the accuracy is ± 1°C). Allow
about 30 minutes for both sensors to stabilize.
4.4 Indoor Sensor Installation
Indoor use only. It is recommended you mount the Indoor sensor on a north facing wall, in a
shaded area. Direct sunlight and radiant heat sources will result in inaccurate temperature
readings. Use a screw or nail (not included) to affix the indoor sensor to the wall, as shown in
Figure 4.
Figure 4
Or put it on the table, Place the console at least three feet away from computers, TVs and wireless
phones. Avoid transmitting through solid metal barriers. as shown in Figure 4
Figure 7
4.5 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 433.9MHz 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 100 meter line of sight (no interference, barriers
or walls) but typically you will get 30 meter 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 5.6Glossary of Terms
Term
Accuracy
Hygrometer
Range
Definition
Accuracy is defined as the ability of a measurement to match the actual
value of the quantity being measured.
A hygrometer is a device that measures relative humidity. Relative
humidity is a term used to describe the amount or percentage of water
vapor that exists in air.
Range is defined as the amount or extent a value can be measured.
5 Specifications
5.1 Wireless Specifications
•
•
•
Line of sight wireless transmission (in open air): 100 meters, 30 meters under most
conditions.
Frequency: 433.9 MHz(+/-250K)
Update Rate: 60 seconds
5.2 Measurement Specifications
The following table provides specifications for the measured parameters.
Measurement
Indoor Temperature
Indoor Humidity
Range
0 to 60 °C
10 to 99%
Accuracy
± 1 °C
± 5% (only guaranteed
between 20 to 90%)
Resolution
0.1 °C
1%
5.3 Power Consumption
•
•
Indoor sensor : 2 x AAA 1.5V Alkaline or Lithium batteries (not included)
Battery life: Minimum 12 months for indoor thermometer-hygrometer sensor , Backlight
often light may reduce the battery life.
6 FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment
generates uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected. -- Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause
undesired operation.
7 Troubleshooting Guide
Problem
Wireless remote (thermo-hygrometer) not
reporting in to console.
Solution
If any of the sensor communication is lost,
The maximum line of sight communication range is 100
meters and 30 meters under most conditions. Move the
sensor assembly closer to the display console.
If the sensor assembly is too close (less than 5’), move
the sensor assembly away from the display console.
Make sure the remote sensor LCD display is working
and the transmitter light is flashing once per 48 seconds.
Install a fresh set of batteries in the remote
thermo-hygrometer. 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 remote sensors around electrical noise
generating devices, such as computers, TVs and other
wireless transmitters if used indoor.
Temperature sensor reads too high in the
day time.
Indoor and Outdoor Temperature do not
agree
Indoor and Outdoor Humidity do not
agree
Move the remote sensor to a higher location. Move the
remote sensor to a closer location.
Make sure the thermo-hygrometer is mounted in a
shaded area on the north facing wall.
Allow up to one hour for the sensors to stabilize due to
signal filtering. The two temperature sensors should
agree within 2 °C (the sensor accuracy is ± 1 °C).
Allow up to one hour for the sensors to stabilize due to
signal filtering. The two humidity sensors should agree
within 10 % (the sensor accuracy is ± 5 %).
Problem
Display contrast is weak
Solution
Replace console batteries with a fresh set of batteries.

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