Eela S25 manual - fra www.interstage.dk
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1. S25V2 EELA AUDIO Horn 6 Haps The Netherlands 31485 310346 S25UK 1 09 20052. This has been done to produce the maximum output level and the lowest current consumption with the given battery voltage The use of lower impedance headphones is possible but will have slightly less output level and will draw slightly more current To release the headphones push the red button and pull the connector out EELA AUDIO S25 REPORTOPHONE USERS MANUAL S25 back connections PWR external power connector 12V to 28 V DC up to 1 5 Amp Green Power LED indicates an external power supply is active Mobile Telephone connector 15 way D type For available cables see separate list Phones headphone connector with lock Line in high level balanced line input Line out high level line output for a recording device Mic balanced microphone input EELA AUDIO S25 REPORTOPHONE USERS MANUAL Front panel controls To switch the unit on briefly push the ON button To switch the unit off push and hold the ON button for a few seconds The yellow leftmost LED will indicate the unit on Briefly tapping the ON button while the unit is on will switch the battery level indication on It also toggles a contact to put certain telephones in external mode The use of this contact depends on the telephone model used LED meterbar consists of 4 LED s to aid adjusting the input level Only yellow the level is too low red is too high An optimum input level is obtained if one or 2 green LED s light in the rhythm of the input signal
3. This is the optimum modulation In case of unexpected high peaks they will be caught by the built in compressor limiter so distortion is prevented The unit will switch off if there has been no green indication for a period of approx 10 minutes Both green LED s on Microphone MIC to adjust the microphone input level Line LINE adjusts the line input level The range is more than enough to use both balanced as well as unbalanced input sources In case of playback a line signal only to the studio it is strongly recommended to turn the MIC volume down to prevent surrounding noise to mix with the line signal Balance MIX RET adjust the balance between the mix of input signals microphone and line and the signal coming back from the studio return signal Often the volume of the return signal also depends on the volume setting of the mobile phone Headphone PHONES regulates the volume of the headphone UNE Mix MET PHONES USE Available are 1 MICROPHONE INPUT MIC Made via a female XLR balanced for using almost any kind of dynamic or professional electret microphone The sensitivity can be controlled such that optimum modulation can be achieved in almost any situation EELA AUDIO S25 REPORTOPHONE USERS MANUAL 2 LINE INPUT LINE On a 4 jack and balanced Both professional sources with high level and balanced outputs as consumer equipment with lower level and unbalanced character with higher impedance
4. s can be used without problems 3 RECORD OUTPUT OUT This is an unbalanced output on a 14 jack for connection to a line input of a recorder for recording of the mix of the contribution of the telephone line and the microphone tape signal the same signal that can be heard on the headphone output EELA AUDIO S25 REPORTOPHONE USERS MANUAL OPERATION 1 DIRECT CONTRIBUTION TO THE STUDIO DIALLING Connect your mobile telephone with the appropriate cable Turn all 4 volume controls to the middle position Switch the unit on by briefly pushing the on button Watch the mobile telephone to display an external message With you mobile telephone dial a number to connect to the studio You are now able to communicate with the studio SETTING THE MICROPHONE LEVEL MIC CONTROL Speak into the microphone with the expected loudness and adjust the MIC control up to the position that one or two green LED s light in the rhythm of the speech with occasional action of the red LED in peaks This is the optimum modulation with the least side effects and the strongest signal in the studio In case of unexpected high peaks they will be caught by the compressor limiter so distortion is prevented SETTING THE LINE LEVEL LINE CONTROL The same rules are valid here as for setting the microphone level MIX CONTROL This control has influence both on the RECORD output and on the HEADPHONE MONITORING With the control in the CCW position MIX
5. your type of cell phone The S25 has to be used with a portable telephone in external mode e g hands free headset remote mode or carkit Most but not all phones will have an indication on the display Some models switch to external mode upon connecting the single cable to the telephone Others you will also need to connect the 25 and some require the S25 to be switched on also A number of phones require an on or off pulse You will have to push the on off button of the S25 momentary to toggle the phone to internal external mode The on off button of the S25 can also be used with some phones to connect disconnect Except for the primary purpose sending program contributions to the studio via the public mobile telephone system a number of extra facilities are available shown very useful in practice These facilities are 1 Making a connection with the studio and sending contributions via microphone and or tape with monitoring of the return signal to be mixed with the direct signal The connection has to be made with your mobile telephone 2 Making a connection for a telephone interview and recording this on a connected audio recorder The balance between the own contribution via the microphone and the incoming contribution from the telephone can be adjusted for optimum results 3 The use of the S25 REPORTOPHONE as portable mixer for recording with inputs for microphone and line tape with internal compressor limiter f
6. 3946 0040 www interstage dk pro audio with a smile EELA AUDIO S25 REPORTOPHONE TECHNICAL INFO Disable the auto switch off function Momentary pushing the on off switch will switch the unit on Holding the button for a few seconds will cause the unit to switch off To preserve power the unit will automatically switch off if not active for more than approx 10 minutes Your can disable this auto off function by changing an internal setting _seeeoe ETITE a ote io PCB V2 SN gt 100 S25PCB V2 On the PCB between the battery holder and the rear there is an empty solder pad with an interruption as shown in the picture Solder the 2 halves together to disable the auto shut off function when used with batteries EELA AUDIO Horn 6 Haps The Netherlands 31485 310346 S25UK 1 09 2005 EELA AUDIO S25 REPORTOPHONE TECHNICAL INFO Use as a Stationary hybrid Charger on of Discharge switch PCB version 2 SN gt 099 can also be used as a stationary hybrid e g in areas without a standard telephone infrastructure A switch is hidden behind the hole on the left side panel The hole closest to the back of the unit This is the charger on off switch You can operate the switch with e g a pen or paperclip The blue battery LED s will extinguish in this mode In this mode you can also use this unit with the external power supply connected and no batteries inside The unit will not switch off automatically
7. Eela Audio 25 ReportoPhone User Manual EELA AUDIO S25 REPORTOPHONE USERS MANUAL WARNING Do not expose this appliance to rain or moisture To reduce the risk of electrical shock do not remove cover There are no user serviceable parts inside Do not attempt to repair the unit yourself this voids the right of warranty Refer servicing to qualified personnel CE Product This product is in conformity with the requirements of the CE directives CE This product should only be installed and used in installations as specified in this manual and should only be used with the ancillary equipment and options and in the right environment according the recommendations The supplier will not take any responsibility of damage to or induced by this product caused by using the equipment in any not specified application or connecting items or equipment in any way or environment other than specified General Information Cleaning Clean the outside of this product with a soft cloth Do not use any cleaning detergents like alcohol white spirit or ammonia based fluids to clean this product This can severely damage the finish of the product For waste separation At the end of the lifecycle of this product or the batteries dispose it in accordance with local procedures for disposal of hazardous or chemical waste Do not dispose the unit or batteries in the ordinary way but if possible hand it in as Small Chemical Waste EELA AUDIO S25 REP
8. ORTOPHONE USERS MANUAL QD Thank you for the purchase of this S25 Reportophone First read this manual carefully before starting to use the apparatus Please keep this manual so you can refer to it at a later stage User familiar with the S20A will find it easy to work with this S25 but it is strongly recommended to read the part about power supply and charging of the batteries EELA AUDIO S25 REPORTOPHONE USERS MANUAL Quick start Do read the information about batteries and charger Connect a dynamic or electret microphone to the XLR input and a suitable headphone to the Jack connector with lock Connect your mobile telephone with the appropriate cable Turn all 4 volume controls to the middle position Switch the unit on by briefly pushing the on button The leftmost yellow LED will light Watch the mobile telephone to display an external message To switch the unit off push and hold the on button for a few seconds Dial a number to connect to the studio After a 10 minutes period of inactivity the unit will automatically switch off EELA AUDIO S25 REPORTOPHONE USERS MANUAL Important information about the batteries and charger The S25 is supplied with and intended for use with a set of 4 AA size NiMH batteries As the unit is designed for portable use it is important to keep the batteries in the best possible condition Therefor the unit has a carefully designed internal battery cha
9. bly use the wide range 12V DC power supply provided with the unit However the unit will accept an input voltage in the range of 12 to approx 28 Volts This will allow charging the unit in a car 12V or even a truck 24V A car battery cable is available as an option Charging current is up to 1 5A With one charge of the batteries the unit can be used continuously for more than 10 hours Empty batteries will charge in a few hours depending on type and capacity a fast rush charge e g in a car of 15 minutes will EELA AUDIO S25 REPORTOPHONEo USERS MANUAL charge the power supply enough for one hour use These figures largely depend on the make and type of batteries used Batteries with a larger capacity will have to be charged over a longer period 5 blue LED s indicate the state of the battery set All lights on means fully charged when the first blue LED start flashing there is power for approx 10 minutes left To safe power these LED s will extinguish after a given period Momentary pushing the on off switch will bring the display back on A bi coloured LED left of the 5 blue LED s indicates charging or de charging Red the unit is de charging green is charging a blinking green LED indicates trickle charging A new set of batteries will reach full capacity after a few charging and de charging cycles You can put the unit in de charging mode by momentary pressing the red hidden switch on the left side of the unit with e g a pen In thi
10. harged before you start using them in order to prevent individual cells getting not completely charged or overcharged A few charging and discharging cycles will smoothen out these differences in cells This will also improve maximum capacity of new cells Fast charging of new or deep discharged batteries will damage the batteries thus shortening the lifetime The charging process starts with about 10 of the rated capacity per hour until the voltage exceeds 0 95 Volt per cell On the S25 a blinking green LED indicates this state This slow start can take up to one hour for new batteries To detect if the batteries are fully charged a combination of 2 methods is used If batteries are near full a voltage drop can be detected known as the minus delta V bump Unfortunately the minus delta V bump that is indicative of end of charge is much less pronounced in NiMH than NiCad and it is very temperature dependent To make matters worse new NiMH batteries can exhibit bumps in the curve early in the cycle particularly when cold This is the reason in rare cases charging can stop unexpectedly at the beginning of the fast charging Unplugging and connecting the power supply will restart the charging mode We have chosen to switch the unit off when the power supply is plugged in Variable current consumption of a unit in use will make it too difficult to detect the delta V bump Take special care when charging the S25 in low or high temperatures The unit wi
11. ll stop charging outside a temperature range of approx 0 to 40 C NiMH are sensitive to damage on overcharge when the charge rate is over 10 As the battery reaches end of charge oxygen starts to form at the electrodes The built in catalyst in the cells recombines this oxygen This chemical reaction creates heat which is measured with a temperature sensor In the S25 a temperature increase of a few degrees in a relative short time AT At will also end the charging process As a precaution there is also a time limit Charging time is limited but of course this is only valid if you are charging empty batteries Display remaining capacity The easiest way to have an accurate display of the remaining capacity is to use dedicated battery packs or built in batteries as many manufacturers of household appliances cameras or cell phones do With the S25 we have chosen to use standard rechargeable batteries that can be exchanged for non rechargeable in an emergency Taking the above into consideration and the fact that the voltage of the cells are temperature dependant it is not easy to built a reliable display to indicate the remaining operating time The indication of the display of the S25 is adjusted to the type of cells it is initially shipped with The indication will be slightly inaccurate if the batteries will be replaced with another than the rated capacity interstage Phistersvej 31 2900 Hellerup Danmark Telefon 3946 0000 fax
12. only the output of the mixer mic and or line can be heard and recorded with the control clockwise TEL then only the signal from the telephone line is available A comfortable listening is often achieved by setting the MIX control in the middle position so adding enough high quality signal from the mixer for comfortable listening Note The volume of the return signal also depends on the loudspeaker volume control of the portable telephone SETTING HEADPHONE LEVEL PHONES This can be set to the taste or the need of the user 2 RECORDING A TELEPHONE INTERVIEW The basic settings are the same as those for a contribution to the studio with an extra for recording the item SETTING THE RECORDING LEVEL The recording output level of the REPORTOPHONE can not be set so this has to be done on the recording device The best time to do this is during the first conversation EELA AUDIO S25 REPORTOPHONEo USERS MANUAL The MIX control allows for setting the balance between the own contribution and the one from the caller and this has to be done for equal loudness Checking is easy because the same mix appears on the headphones With really low level from the incoming signal turn the MIX control more CW for too strong signals more CCW 3 USE AS MIXER Also here the basics for setting the levels of microphone and line input and the recording alignment are the same as described above In order to avoid possible noise from the telephone set the MIX c
13. ontrol to the full counter clockwise MIX position interstage Phistersvej 31 2900 Hellerup Danmark Telefon 3946 0000 fax 3946 0040 www interstage dk pro audio with a smile NiMH Charging The Eela Audio S25 Reportophone is used with metal hydride NiMH batteries There are advantages of using these batteries but special care has to be taken when charging these The main benefits of NiMH batteries over NiCad are that they do not suffer from the memory effect and the extended capacity And there is also the advantage that NiMH batteries are more environmental friendly The charging efficiency of NiMH batteries is approx 50 meaning that you must put in double energy of what you get out This also depends on temperature and charging current The faster you charge the worse this gets A safe fast charging current is approx half the rated capacity per hour A safe way to charge the batteries without damaging them by overcharging is a charge rate of max 10 Empty cells with a capacity of 2000 mAh will have to charge for 25 hours This is not acceptable for a professional user NiMH batteries discharge over time Unfortunately this self discharging is not equal for all batteries and there are considerable differences in discharging between cells even in the same package This is the main reason these batteries are not charged out of the package Make sure new or batteries that are not use over a longer period of time are disc
14. or level control a feature very useful as addition to many reporter machines without a good automatic level control facility EELA AUDIO S25 REPORTOPHONE USERS MANUAL Connections All connections are located on the back panel of this REPORTOPHONEG with professional heavy duty connectors for maximum reliability Microphone Balanced XLR type input for dynamic or electret microphone Headphone Va Jack with lock stereo 2 channel Line input V4 Jack balanced line level 6 dBU Line output 14 Jack balanced line level 6 dBU Both professional sources with high level and balanced outputs as consumer equipment with lower level and unbalanced character with higher impedance s can be used without problems Electrical details inputs and line output Signal XLR type VY Jack Screen Pin 1 sleeve In phase signal out Pin 2 tip Phase signal Pin 3 ring Pin 1 and pin 3 have to be wired together for unbalanced connections HEADPHONE OUTPUT HPH This is a 1 4 stereo jack connection as used for stereo headphones The output signal is MONO but a stereo headphone is recommended preferably with an impedance of 600 Ohm for the best results A mono headphone like one of a headset combination has to be wired with signal on TIP and RING and ground to SLEEVE This ground may not be connected with the screen of the microphone input because of the balanced character of the headphone output with signal on both wires
15. rger conditioner with 2 processors to monitor the state and charging recharging Momentary pushing the on off switch will switch the unit on Holding the button for a few seconds will cause the unit to switch off To preserve power the unit will automatically switch off if not active for more than approx 10 minutes It is not possible to use the S25 during charging of the batteries A trade off between optimum battery use fast charging en best signal quality Keep the batteries in the unit avoid swapping Over time the processor learns the state and condition a process that has to start over upon swapping batteries Accidentally opening and closing of the battery case will cause only one blue LED to light Connecting the unit to an external power supply will bring back accurate display in a few minutes If it becomes necessary to replace the batteries it is strongly recommended to use the same type and capacity as the original The display of remaining capacity is adjusted for the type of batteries the unit is shipped with You can use standard non rechargeable batteries but you have to switch the charger off to avoid accidental charging of non rechargeable batteries A switch is hidden behind the hole on the left side panel The hole closest to the back of the unit You can operate the switch with e g a pen or paperclip The blue battery LED s will extinguish in this mode Charger on of Discharge switch Prefera
16. s mode the external power supply has to be connected to the unit Removing the external power resets this state A full de charging charging cycle will take up to 12 hours The fast charging process will need minimum charged batteries Please allow extra time for new or really empty rechargeable batteries as they will be charged with a very small current until a minimum voltage is reached The green LED will blink while this process is going on It can occur that the charging stops at the transit of slow charge to fast charge In that case reset the unit by shortly removing the power supply Battery holder is located on the right side of the unit and it is not easy can be opened without tools Mains adapter 1U15 2120120 WP The S25 Reportophone is standard shipped with a wide range mains adapter 100V 240V AC 50 60Hz 0 5A This adapter supplies the S25 with a 12V DC voltage Please check if the rated mains voltage of the adapter is suited for the local mains voltage The adapter is shipped with 3 interchangeable mains plugs for Euro UK and US Japanese style wall outlets To remove the mains plug from the adapter firmly push the knob above the label and slide the head towards the top of the unit EELA AUDIO S25 REPORTOPHONE USERS MANUAL APPLICATIONS The EELA AUDIO S25 REPORTOPHONEG is a universal multifunctional tool for the radio reporter to be used with a portable telephone Make sure you order a connection cable to match
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