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Irox JKTG-4R Manual

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Start search process for a sensor
Select the desired radio channel with the CHANNEL key.
Example: Channel 4 (the number 4 is flashing)
Now press and hold the SEARCH key until the wave symbol starts to flash. The device now
searches for the sensor on channel no. 4. This process can take a few minutes and is finished
as soon as the wave symbol stops flashing.
We have deliberately ensured that the search channel can be individually called up per channel
so that sensors that are already logged in are not affected by subsequent enhancements.
Signal interruptions
Each sensor is read by the device once a minute. If more than 8 readings are read one after the
other without data, lines appear in the display for this channel and the JKTG-4R then stops any
other reception attempts after this for 8 hours.
The display device starts a reception again by itself after approx. 8 hours. If the original sender
is not found again, the device starts with a new search for a new sensor on this channel.
When the signal is interrupted, you can start a new signal search at any time manually. Please,
however,check the following points beforehand:
1. whether the sensor is still in place
2. the batteries of the sensor and the display device. Please also replace them when a battery
tester rates them as still being sufficient! Further info on this can be found in the FAQ on
www.irox.com.
Note: If the outdoor temperature drops sharply, the output of batteries that have been started
is also strongly reduced. It is therefore recommended that new batteries are always inserted
in the sensor at the beginning of the winter (alkaline type or better).
3. whether disturbances or shields are to be found in the area of the sender/receiver or the
distance between the two devices is too great.
The search processes described above for a ‘lost’ sensor do not have any influence on any
other existing sensors that function without problems.
Signal ‘collisions’
Radio signals of other devices in their environment can cause disruptions or temporary
interruptions in reception. This is not bad but could be annoying under certain circumstances.
Such typical 'disruptive systems’ are radio door bells, wireless security systems, tube screens
(PC/TV), control systems, etc. In such cases, it can also be helpful to use another channel.
5. OPERATION
The JKTG-4R measures the temperature and relative air humidity directly and also receives the
measurements of up to a maximum of 5 IROX radio temperature sensors. Each sensor is to be
set to one of the channels 1-5 (resp.1-3 for 3-channel devices). The temperature currently
measured is displayed in the information windows in °C (or °F) and, for the location of the
display device, the relative air humidity in % and the Comfort Zone.
The following operations can be made in this function:
5.1 THERMO/HYGROMETER
5.1.1 Reading of the temperature from each channel
CH1 CH2 CH3
CH4 CH5 CH1 etc
Briefly confirm the key CH to jump from channel to channel.
- The next channel is thus displayed with each press of the key and activated for further
operations. The sequence of the activation is
This is independent of whether a radio sensor is available in the system or not.
Please note: The measurement is always depicted in the lower window; channels 1-5 one
after the other in the upper window.
5.1.2 MIN/MAX memory
a) The MIN/MAX values are always present on the display below the current measurement value.
- LEFT: Minimal (=lowest) temperature "MIN"
- RIGHT: Maximum (=highest) temperature "MAX"
The logic of the recordings is displayed in Section 2.2 Operating elements.
Please note: Lines appear if no data are available. This occurs when a channel is not allocated
or the sensor is no longer being received.
5.1.3 Comfort Zone
The Comfort Zone is only displayed for the thermo/hygro measurement of the display device.
With the outdoor sensors, only the temperature is received and displayed; it is thus not possible
to calculate the Comfort Zone for CH1...CH5.
The logic is depicted in the following illustration:
6. CHANGE OF BATTERY
: BATTERY CHANGE DISPLAY
The batteries last for around 8-12 months. Depending on the usage of the appliance and the
batteries used, this time can be slightly shorter or longer. In order to avoid a surprising and
unpleasant interruption to operations, the battery symbol appears in the two temperature
windows with the corresponding channel. This means that batteries of the display appliance (in
the IN window) or of a radio sender (in the CHx window) are becoming too weak and need to be
replaced.
To change the batteries, please note Chapter 3 (Putting into operation).
Please only use new batteries and never mix old and new batteries.
Please also remember that used batteries should not be thrown in the household rubbish bin
but handed in at the designated collection points. The environment will thank you for it!
7. CARE INSTRUCTIONS
- Do not expose the device to extreme temperatures or direct sunlight over longer periods.
- Avoid blows and shocks of any kind to the device.
- For cleaning use a dry soft cloth that you have moistened with water and a mild cleaning agent.
Never use volatile substances such as benzene, thinner, cleansing agents in spray cans etc.
- When the device is not being used store it in a dry area and out of the reach of small children.
- If the device is activated under extreme coldness it may occur that the display becomes
illegible. As soon as it is returned to a warm environment the device will function normally.
- Please keep the user’s manual and other documents delivered with the device stored carefully
so that you can reference them at a later point if necessary.
- Please use only new batteries and never mix old and new batteries.
- Please also remember that old batteries should not be disposed of with household waste but
should be handed in at the designated collection centres.
- Important: With all Irox appliances, all disposal fees in Switzerland (vRG; advance recycling
fee) and in the EU (WEEE) have been paid.
3635
3837
1413
1615 2827
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