HUMANTECHNIK A24640 RF Telephone Transmitter Acoustic User Manual

HUMANTECHNIK A24640 RF Telephone Transmitter Acoustic

overview

Congratulations on purchasing your RF telephone transmitter acoustic. We hope it will give you many years of reassuring operation. Please read through these operating instructions carefully. They tell you how to set up the system correctly and explain all the system’s features to you.

Included in the standard package

Please check if all following components are included:

• lisa RF telephone transmitter acoustic
• Microphone cable, length 1 m
• 9 V block battery
• Operating Instructions
• Warranty card
  If any parts are missing please immediately contact your dealer or the manufacturer directly.

Functional principle

A signalling system consists of at least one transmitter and one receiver. The RF telephone transmitter acoustic uses a microphone to pick up the signals from the telephone. It converts these signals into radio pulses (868.35 MHz) and transmits them to the receiver without the need for wires.

Special features

When a signal is detected, it is transmitted for a total of 22 seconds. This increases both the reliability and the range of the system.

Inserting the battery

There is a battery compartment on the back of the RF telephone transmitter acoustic. Open it by your thumb, with sliding the cover of the battery compartment to the right of the receiver. Connect a 9 V block battery to the connector plug, place the battery into the recess and close the receiver again. When the battery is connected, the receiving signals may be triggered once.

Setting the correct radio channel
A special digital transmission process ensures that the radio signals are picked up without errors. This process also makes it possible to set 10 different radio channels. When supplied from the factory, all RF telephone transmitters acoustic are set to channel 0. It is only necessary to set units to other channels if you have several different users operating units in the same building. Set the required channel by using a small screwdriver to turn the channel selector switch, which is located towards the top of the battery compartment, to the required channel number. All transmitters and receivers must be set to the same channel.

Installing the microphone cable
Use the adhesive ring to glue the microphone to the ringer cover of your telephone and plug the microphone cable into the connection jack on the bottom of the RF telephone transmitter acoustic. To do this, pull off the backing foil from the adhesive ring on the microphone. For optimum function of the transmitter, its sensitivity dial switch must be set so the transmitter reliably responds to the doorbell.

Pulling off the backing foil.

Fig.: Plugging in the microphone cable and sticking the microphone over the acoustic output cover of your doorbell.

Setting the sensitivity
Set the ringer of your telephone to its maximum volume. Set the sensitivity of the RF telephone transmitter acou-stic to its lowest level (turn to the anticlockwise stop). Activate the telephone ringer and gradually increase the sensitivity of the transmitter (by turning the dial clockwise) until the transmitter reacts to the telephone ringing.
Please note : It is possible that the telephone signal may be triggered once if you replace the telephone handset with too much force.

Call button
Pressing the call button on the RF telephone transmitter acoustic cau-ses a signal to be triggered on every receiver which is set to the same radio channel as the transmitter. The call button lamp lights up to indi-cate this. This makes it possible to call people who are in different rooms. This button can also be used to check, if the system is working, even when the microphone is not connected.

Mains operation
You can also operate your RF tele-phone transmitter acoustic via the plug-in power supply unit. To connect the PSU, insert the connector on the end of the PSU cable into the corre-sponding socket on the left-hand side of the device. Then plug the power supply unit into the normal 230 V socket in your house.

Radio range
The radio signals are designed to have a range of 80 meters under optimum conditions. The following conditions may result in a reduced range:

• Signal transmission through buil- ding structures or vegeta tion
• Interference from TVs, computer monitors and mobile phones. Under certain circumstances, this may prevent the receiver from func-tioning at all.
• Positioning of the transmitter at an unfavourable distance from surfaces which reflect radio waves, for example floors and walls. This may lead to the signal wave being weakened or even cancelled out by the reflected wave.
• Metallic objects reduce the range due to the shielding effect of the metal.
• Particularly in towns and cities, there may be many other sources of radio waves which can disrupt the original signal.
• Having units operating at similar frequencies located close to one another may also result in mutual interference.

Positioning the RF transmitter
Bear in mind the following points when positioning the RF transmitter, in order to achieve the greatest possible range from the RF transmitter:

• The RF transmitter should not be set up close to devices which emit powerful interference signals, such as TVs, computer monitors or mobi-le phones.
• The RF transmitter should not be placed on metallic objects, since otherwise the radio range will be restricted by metallic shielding.

Maintenance and care

The RF telephone transmitter acoustic does not require any maintenance. If the unit does become dirty, simply wipe it clean with a soft, damp cloth. Never use spirits, thinners or other organic solvents. Do not set up the RF telephone transmitter acoustic where it will be exposed to full sunlight for long periods. In addition, it must be protected against excessive heat, moisture and severe mechanical shocks.
Note: This product is nnoott protected against splash water. Do not place any container s filled with water, such as flower vases, or anything with an open flame, such as a lit candle, on or near the product. Please make sure that the batteries are not exposed to excessive heat from such as sunlight, fire or anything similar.

Warranty

The RF telephone transmitter acoustic is a very reliable product. Should a malfunction occur despite the unit having been set up and operated correctly, please contact your dealer or the manufacturer directly. This warranty covers the repair of the product and returning it to you free of charge. It is recommended that you send in the product in its original packaging, so keep the packaging for the duration of the warranty period. The warranty does not apply to damage caused by incorrect handling or attempts to repair the unit by people not authorised to do so (destruction of the seal on the unit). Repairs will only be carried out under warranty if the completed warranty card is returned accompanied by a copy of the dealer’s invoice/till receipt. Always specify the product num- ber in any event.
Battery life
Under normal conditions (seven transmissions a day), the transmitter battery should last for about 1 year. Press the pager button on the transmitter to test the battery charge status. If the “Send” signal LED on the transmitter does not come on, the battery needs to be replaced!

Disposal
of used electric and electronic units (applicable in the countries of the European Union and other European countries with a separate collection system). The symbol on the product or the packaging indicates that this product is not to be handled as ordinary household waste but has to be returned to a collecting point for the recycling of electric and electronic units. You protect the environment and health of your fellow men by the correct disposal of this products. Environment and health are endangered by a faulty disposal. Material recycling helps to reduce the consumption of raw material. You will receive further information on the recycling of this product from your local community, your communal disposal company or your local dealer.

Technical data

• Power supply: 9 V block battery
• Battery life: or via a plug-in PSU (special accessory)
• Frequency: approx. 1 year
• Maximum transmitting power: 868.35 MHz
• Operating range:  0° C – 40° C
• Height (including the antenna): 147 mm (201 mm)
• Width: 50 mm
• Depth: 41 mm
• Weight (including battery): 145 g

Compliance with the directives listed above is confirmed by the CE seal on the device. CE compliance declarations are available on the Internet at www.humantechnik.com. Technical specifications subject to change without notice.

References

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