adt-audio TOOLMIX16 User Manual Download

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adt-audio

ToolMix/ToolMst User Manual

The ToolPwr-M power supply device has one output connector, since

its output current is limited to 1.5 amps peak output current. There is

no risk to exceed the limit with this power supply unit. The Tool-Pwr-

S and ToolPwr-E have two connectors in parallel.

The inrush current of the units is multiple times higher than the oper-

ation current if you install power cables with power supply on. Even

though no damage can occur when you disconnect or connect power

cables with power on, you are supposed to switch off the power sup-

ply unit before you plug or unplug power cables to protect the con-

nectors and avoid triggering the overload protection of the power

supply units. In case you plug in a power cord by mistake, the over-

load protection of the power supply may be triggered by the high in-

rush current. In this case, one or both audio supply voltages will not

ramp up correctly. One or both control LED’s on the power supply

faceplate either will be off or dimmed. Heavy hum and distortion on

all audio outputs will occur. In this case, switch off the power supply,

wait about 2 minutes, and switch on again.

SWITCH OFF THE POWER SUPPLY BEFORE YOU

CONNECT OR DISCONNECT POWER CABLES!

Power supply cables

If you do not purchase power cables from us but make these cables

yourself, please use the pinning diagram. Please consider that the

quality of the connectors is crucial for trouble free operation of the

entire system. It makes no sense to use low cost, bad quality connec-

tors to save some money. This will result in very unpleasant click noise

and bad noise performance very soon.

CLICK NOISE AND BAD NOISE PERFORMANCE ARE MOST LIKELY

IF YOU USE LOW QUALITY POWER CONNECTORS.

Please use a 6 core cable with a cross section of 0.75 mm2 / AWG18

per core. With this cross section, the voltage drop on the power cord

under full load is less than 0.25 V with six units installed. This voltage

drop does not alter any technical qualities of the devices. If you low-

er the cross section, the voltage drop increases. This causes a lower

headroom and reduced transient performance.

Summary of Contents for TOOLMIX16

Page 1: ...technik Karl Jüngling Inh Dipl Ing Gerd Jüngling 4 6 Scholtwiese Gladbeck D45966 NRW Germany Phone 0 049 2043 51061 Fax 0 049 2043 56844 E Mail info adt audio com Web www adt audio com www adt audio de www pro audio store de Version d 2011 English adt audio ...

Page 2: ...technical Data 36 Appendix technical Data Diagrams 37 Power Supply Units ToolPwr M ToolPwr S 38 ToolPwr E Current Consumption 39 Mains Power Supply Cables 40 Maintenance Environmental Conditions 41 This manual contains information on the adt audio Toolmix ToolMst system that has been carefully checked In line with a policy of contin uous development information may be changed or updated without no...

Page 3: ...irmation of the damage All our shipments are insured however the insurance will only pay if there is evidence that the damage was caused by the transport So please if you can find any damage follow these rules to avoid any trouble Get a written confirmation from the forwarder that the delivery was damaged in transit If you missed to check for damage with the forwarder look for a witness and make r...

Page 4: ...ICE REMOVE THE MAINS POWER CABLE FROM THE DEVICE BEFORE YOU OPEN THE CASE SWITHCING OFF THE DEVICES DOES NOT MEAN THAT THE DEVICE IS HARMLESS DO NOT MAKE ANY MODIFICATIONS INSIDE THE DEVICES YOUR LIFE IS IN DANGER You will loose your warranty if you make unauthorized modifications of the devices We are not liable for any damage or injury resulting from unauthorized modifications DEVICES MAY HAVE S...

Page 5: ...ographical errors All specifications are subject to change without notice CE Declaration of Conformity Manufacturer Fa Karl Juengling Type of Equipment Audio Signal Processor Product ToolMod Pro Audio Module System consisting of Modules Mounting Frames Power Supply Units and Accessories Compliance Engineer Gerd Juengling Test Basis EN50081 1 1992 EN50082 1 1992 EN61000 3 3 1995 EN60065 1993 Class1...

Page 6: ...advice Important Safety Instructions Please note and retain this information Read and follow all safety and operation instructions carefully before you start using the product Heed all warnings Extensive information on the entire ToolMix system and manuals for download can be found on our website www adt audio com Water and Humidity Do not use the devices near water near a bathtub in a wet basemen...

Page 7: ...GHTNING STORM RISK OF DEATH BY ELECTRIC SHOCK Voltage Selector Make sure that the voltage selector of the power supply is set to the correct voltage BEFORE YOU CONNECT THE POWER SUPPLY Location and Accessibility of the Power Supply and the Power Cord The power supply units must be located such that the rear AC socket and connected power cord are readily accessible Overload Avoid any kind of overlo...

Page 8: ...h care while you install units and modify jumper set tings Fuses Do not use different fuses for replacement NEVER replace a fuse with another one with higher current values or different tripping behavior Use only fuses with the original values Other fuses can cause DAM AGE FIRE and or ELECTRIC SHOCKS WARNING RISK OF DEATH BY ELECTRIC SHOCK Ventilation Slots Ventilation slots and or openings preven...

Page 9: ...ory Repair If you intend to send defective devices to the factory please get in touch with us by phone 0049 2043 51061 or by email support at adt audio com and let us know Type and serial number of the defective device Date of purchase and name of the dealer if you have not purchased directly from the factory A brief description of the problem and of the history fluids in the device something that...

Page 10: ...nked in any desired way to build up compact professional mixing systems ToolMix makes it possible to setup mix ers with many channels in the size of some rack spaces at a price that is much lower than the price of a conventional console some basic specs headroom 30 dBu more than 120 dB dynamic range all inputs and output balanced the proven sound performance of the well known adt audio large forma...

Page 11: ...umpers Unlike other line mixers where the so called insert is nothing but a simple input A B switch with a passive parallel output of one of the inputs the ToolMix insert point is located post input amplifier and input gain control It is fully buffered and balanced and capable to handle input and output levels of 30 dBu This principle allows you to control the input level of external processing ge...

Page 12: ... ToolMix range of pro audio devices for mixing In addition to four stereo inputs this device combines all stages of a common console master section Stereo master chain with master fader and master insert are integrated as well as a complete control room monitor studio playback and talkback section The ToolMst adds all function of a conventional console to a system with any number of ToolMix device...

Page 13: ...as link cables are available in standard length and cus tom length according to your needs Standard cables 3 m 10 ft 1 m 3ft and 30 cm 1 ft as well as standard link cables 30 cm 1 ft are available from stock Of course we also deliver standard audio cables patch cords with xlr and trs connectors and multicores with 25 pin d subs in different versions Please ask for details ...

Page 14: ...and outputs are 25 pin D sub connec tors Female connectors are installed in the devices All cables must have male plugs The pinning of these connectors meets the so called Tascam standard There are up to eight audio lines on one connector The graphic shows the basic pinning All screen pins are connected to the internal ground 2 OUTPUT Phase a hot 3 OUTPUT Phase b cold 1 SCREEN connected to Ground ...

Page 15: ...he other ToolKit and ToolMod units The picture shows the rear panels of a ToolMix8 and a ToolMst powered by a ToolPwr M with power cables installed A 10 ft cable connects the output of the power supply unit with the ToolMst A 1 ft cable connects ToolMst with the ToolMix8 IMPORTANT NOTES ABOUT THE POWER SUPPLY There are no life threatening voltages inside the Tool devices The highest voltage is the...

Page 16: ...there is another fixed ground connection that is sufficient to maintain safety However you are not allowed to disconnect the pro tective ground Please get in touch with us and ask for advice The MAXIMUM CURRENT of the 5 pin xlr connectors should not ex ceed 3 amperes If the actual current exceeds this value the connec tors might be damaged or the lifespan and the reliability of these con nectors w...

Page 17: ...the power supply faceplate either will be off or dimmed Heavy hum and distortion on all audio outputs will occur In this case switch off the power supply wait about 2 minutes and switch on again SWITCH OFF THE POWER SUPPLY BEFORE YOU CONNECT OR DISCONNECT POWER CABLES Power supply cables If you do not purchase power cables from us but make these cables yourself please use the pinning diagram Pleas...

Page 18: ...ere are some restrictions If a ToolMst master and monitor unit is part of the entire system this unit must be used as master This is actually not a restriction since the master functions that are includ ed in the ToolMst make it self evident to use this device as master It would be pointless to use another device as master For this reason it is not possible to use the ToolMst as slave for other To...

Page 19: ...Mix8 units of the system The aux outputs of the particular ToolMix8 are still available at the aux outputs but there is no common aux master for the entire system Of course it is possible to use this limitation for a special setup offering the choice of separate aux outputs as well ...

Page 20: ...ch is not important for units that operate stand alone however it is ad visable to disable the master mode unless it is really needed Important Note Only ONE UNIT of a group of devices that are connected by dock ing cables can be configured as master If two or more units are switched to master mode the zero ohms summing amps of these de vices are connected in parallel This will cause a drop in lev...

Page 21: ...power supply and docking cables include a ground cross section that is more than sufficient for any standard setup as long as linked units are mounted close together which means one above each other or next to each other in two racks If it is necessary to install the units in a way that the length of the docking cable is more than 3 meters it can be of advantage to add a high cross sec tion ground...

Page 22: ...5 Screen Screen Screen Screen Screen Screen Screen Screen nc INPUT 8 SubD 25 Connector Female installed in device INPUTS 1 8 TOOLMIX8 INPUT INPUT 7 INPUT 6 INPUT 5 INPUT 4 INPUT 3 INPUT 2 INPUT 1 8 7 1 2 3 4 5 6 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Screen Screen Screen Screen Screen Screen Screen Screen nc OUTPUT 8 SubD 25 Connector Female installed in device CHANNEL OUTPUTS 1 8 TOOLM...

Page 23: ... 9 to 16 All in puts are electronically balanced The input re sistance is higher than 10 kOhms All screen pins are internally grounded Here is the pinning of these connectors 8 7 1 2 3 4 5 6 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Screen Screen Screen Screen Screen Screen Screen Screen nc INPUT 8 SubD 25 Connector Female installed in device INPUTS 1 8 TOOLMIX16 INPUT I INPUT 7 INPUT 6 IN...

Page 24: ...GHT STEREO INPUT 3 LEFT STEREO INPUT 2 RIGHT STEREO INPUT 2 LEFT STEREO INPUT 1 RIGHT STEREO INPUT 1 LEFT 8 7 1 2 3 4 5 6 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Screen Screen Screen Screen Screen Screen Screen Screen nc STEREO INPUT 8 RIGHT SubD 25 Connector Female installed in device STEREO INPUTS 5 8 TOOLMIX32 INPUT II STEREO INPUT 8 LEFT STEREO INPUT 7 RIGHT STEREO INPUT 7 LEFT STERE...

Page 25: ...O INPUT 4 LEFT STEREO INPUT 3 RIGHT STEREO INPUT 3 LEFT STEREO INPUT 2 RIGHT STEREO INPUT 2 LEFT STEREO INPUT 1 RIGHT STEREO INPUT 1 LEFT Connector ST IN This connector con tains the inputs of the four stereo in put channels accord ing to the pinning di agram 8 7 1 2 3 4 5 6 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Screen Screen Screen Screen Screen Screen Screen Screen nc CTR SELECT EXTE...

Page 26: ... 15 16 17 18 19 20 21 22 23 24 25 Screen Screen Screen Screen Screen Screen Screen Screen nc CTR SELECT INPUT 4 RIGHT SubD 25 Connector Female installed in device CONTROL ROOM SOURCE SELECT INPUTS 1 4 TOOLMST 2 TR 1 4 CTR SELECT INPUT 4 LEFT CTR SELECT INPUT 3 RIGHT CTR SELECT INPUT 3 LEFT CTR SELECT INPUT 2 RIGHT CTR SELECT INPUT 2 LEFT CTR SELECT INPUT 1 RIGHT CTR SELECT INPUT 1 LEFT Connector S...

Page 27: ...ive up to 100 mA The maximum voltage is 30 V DC IMPORTANT NOTE To avoid any kind of disturbance and click noise caused by ground loops please use FLOATING relays switches opto couplers and other components only The external circuit ry may not be connected to an external ground of another device Use relays or opto couplers for such connections to separate the grounds A 24 V DC supply voltage is ava...

Page 28: ...er location plots Here is a brief description what needs to be done what the pur pose of the lines on the connector are and which jumpers are affected A set of jumpers has to be removed or reconfigured respectively if the couple connector of the ToolMst is used This will usually be the case just for the reason that the 4 return inputs in the ToolMst can be used as additional inputs If there is no ...

Page 29: ...everse 3 pin jumper JU25 for Aux1 and JU26 for Aux2 connect pin 2 and 3 instead of pin 1 and 2 Console MIX L unbalanced Console MIX R unbalanced With the normal setting internal unbalanced outputs of the stereo master outputs feed the MIX switch of the playback source selector These outputs have to be replaced by the corresponding signals of the console These lines are also unbalanced The phases a...

Page 30: ...rol and an insert section with balanced drivers that is located post the input gain It is therefore possible to control the level that is send to an external process ing device independent of the output level of the D A converters The D A converter level can remain on the original high level while the processing device is driven by a different level The output of the insert switch feeds the fader ...

Page 31: ...t not in a simple level correc tion The huge gain range of 12 dB for the channel fader is more than sufficient for all applications A special active gain control makes this range possible without negative influence on the noise performance The input gain in calibrated position is 0 dB Since the insert section is driven directly from the output of the input amplifier the insert lev el matches the i...

Page 32: ...necessary for hassle free setup of the neces sary connections The block diagram shows the princi ple of this operation mode If monitoring using the same analog input channel is not needed the optional post fader output can also be used for DAW recording In this case the input signal is also con nected to the line input of a ToolMix8 channel but the DAW A D converter input is driven from the post f...

Page 33: ... the PFL TO O P switch When this switch is pressed one or more active PFL s switch the main output automatically to the PFL master Linking If a ToolMix8 is used as slave module the master fader operates like a sub group fader for the channels of the particular ToolMix device The ToolMix8 line mixer can be used stand alone as well as coupled to other ToolMix8 ToolMix16 and ToolMix32 units and in co...

Page 34: ...lk Input channel to input channel 20 Hz to 20 kHz 80 dB Fader attenuation 20 Hz to 4 kHz 80 dB 20 kHz 70 dB CUT switch attenuation 20 Hz to 20 kHz 80 dB Signal to Noise Ratio Input source resistance 40 ohms bandwidth 22 Hz 22 kHz reference level 0 dBu 0 775V dBA Values with A type weighting filter dBu values unweighted RMS Line input to insert output gain 0 dB 100 dBA 95 dBu Line Input to insert o...

Page 35: ... BUS DRIVERS MIX R AUX1 AUX2 PFL AUDIO PFL CTRL INPUT CHANNEL 6 MIX L MIX R AUX1 AUX2 PFL AUDIO PFL CTRL INPUT CHANNEL 7 MIX L MIX R AUX1 AUX2 PFL AUDIO PFL CTRL INPUT CHANNEL 8 MIX L MIX R AUX1 AUX2 PFL AUDIO PFL CTRL INTERNAL MIX BUS INPUT 1 8 CHANNEL OUTPUT 1 8 COUPLE I O COUPLE I O INSERT OUTPUT 1 8 INSERT INPUT 1 8 BUS AMP MIX L BUS AMP MIX R BUS AMP AUX 1 BUS AMP AUX 2 BUS AMP PFL AUX 2 AUX ...

Page 36: ...mirror a DAW mix to the analog channels without the need of readjusting levels However it is alternatively possible to setup the mix using the level and pan controls of the ToolMix unit Of course you are not able to maintain the mix setting of the DAW using this method but the maximum dy namic range of the D A converters can be used which can result in a better sonic performance There is no basic ...

Page 37: ...n control makes this high gain possible with out significant disadvantages of the noise performance The gain of the input amplifiers is 0 dB The center detent of the fader is calibrated to 4 dB This level setting results in a total level at the master outputs that is almost identical to the single input levels with most real world music programs In addition this principle has the ad vantage that i...

Page 38: ...bis 20 kHz Level 30 dBu 0 1 Level 20 dBu 0 03 Crosstalk Input channel to input channel 20 Hz to 20 kHz 80 dB Fader attenuation 20 Hz to 4 kHz 80 dB 20 kHz 70 dB Cut switch attenuation 20 Hz to 20 kHz 80 dB Signal to Noise Ratio Input source resistance bandwidth 22 Hz 22 kHz reference level 0 dBu 0 775V dBA values with A type weighting filter dBu values unweighted RMS Mix out L or R all 8 channels ...

Page 39: ...O PFL CTRL INPUT CHANNEL 9 MIX L MIX R PFL AUDIO PFL CTRL INPUT CHANNEL 10 MIX L MIX R PFL AUDIO PFL CTRL INPUT CHANNEL 11 MIX L MIX R PFL AUDIO PFL CTRL INPUT CHANNEL 12 MIX L MIX R PFL AUDIO PFL CTRL INPUT CHANNEL 13 MIX L MIX R PFL AUDIO PFL CTRL INPUT CHANNEL 14 MIX L MIX R PFL AUDIO PFL CTRL INPUT CHANNEL 15 MIX L MIX R PFL AUDIO PFL CTRL INPUT CHANNEL 16 MIX L MIX R PFL AUDIO PFL CTRL LOCAL ...

Page 40: ...handle levels of more than 30 dBu Fader peak present indicator and PFL switch are fed directly from the output of the input amplifiers The PFL system adds both stereo channels to a mono signal The peak present indicator uses a 3 color LED that displays levels of more than 20 dB with green color At 0 dB the color turns to yellow and changes via orange to red with increasing level With red color the...

Page 41: ... principle makes pos sible to use the highest possible D A converter output levels without the risk of distortion and overload even with high gain settings in particular channels which might offer a better sound performance of the converters The center attenuation of the pan pot is 0 dB The control law is optimized for a pure direction regulation without alter ing the level The CUT switch mutes th...

Page 42: ...kHz Level 30 dBu 0 1 Level 20 dBu 0 03 Crosstalk Channel to channel 20 Hz to 20 kHz 80 dB Fader attenuation 20 Hz to 4 kHz 80 dB 20 kHz 70 dB CUT switch attenuation 20 Hz to 20 kHz 80 dB Signal to Noise Ratio all inputs loaded with 40 ohms bandwidth 22 Hz 22 kHz reference level 0 dBu 0 775V dBA values with A type weighting filter dBu values unweighted RMS Mix Out L or R all channels open all input...

Page 43: ...X L MIX R PFL AUDIO PFL CTRL STEREO INPUT CHANNEL 10 MIX L MIX R PFL AUDIO PFL CTRL STEREO INPUT CHANNEL 11 MIX L MIX R PFL AUDIO PFL CTRL STEREO INPUT CHANNEL 12 MIX L MIX R PFL AUDIO PFL CTRL STEREO INPUT CHANNEL 13 MIX L MIX R PFL AUDIO PFL CTRL STEREO INPUT CHANNEL 14 MIX L MIX R PFL AUDIO PFL CTRL STEREO INPUT CHANNEL 15 MIX L MIX R PFL AUDIO PFL CTRL STEREO INPUT CHANNEL 16 MIX L MIX R PFL A...

Page 44: ... headphone amplifier The Playback Section makes pos sible to setup a playback mix from internal and external sources in a very easy way A powerful headphone amplifier is included In addi tion there is a separate output for studio speakers or external power amplifiers Die Talkback Section includes a condenser microphone In addition to external talkback outputs talkback can be switched to the playba...

Page 45: ... to the internal mas ters of the 4 stereo inputs the couple port offers the choice to dock any number of ToolMix devices to the system The Stereo Master The Stereo Master includes an electronically balanced fully buffered switched stereo insert that can be switched pre or post master fader The insert inputs and outputs operate on nominal level The output signal is always available on the connector...

Page 46: ...switches Normally these outputs are control using the PFL system It is also possible to use of the 9 free stereo control room inputs for the aux master output by external wiring PFL The PFL summing buss is part of the couple system All PFL switches of a ToolMix ToolMst system are mixed into this PFL bus The control signal that is necessary for the automated switching functions of the PFL system ar...

Page 47: ...Amplifier The additional headphone amplifier has its own volume control The headphone is not affected by the dim system and the stereo balance control The mono matrix and the phase and left right reversal af fects both the speakers and the headphones The output of the head phone amplifer is available on a TRS jack on the modules top plate The amplifier can drive any kind of headphones PFL Automati...

Page 48: ...ontrol room source selector instead Using this option that requires to change the position of two internal jumpers lets you add another external stereo signal to the playback mix Both the MIX and the CTR switch operate in stereo while the switches AUX1 und AUX2 operate in mono and feed both stereo channel in parallel The selected and mixed input signal drives the volume control fader PHONES via a ...

Page 49: ...dio speakers or power amplifiers for speakers and or headphones as well The speaker out put can be muted by remote control Talkback The Talkback system of the ToolMst combines a high quality elec tret type condenser microphone in the top plate a low noise micro phone preamplifier with gain control and the switching circuitry A large format illuminated push button enables talkback When the TB TO ST...

Page 50: ...E STUDIO 6dB 6dB MONO TB DIM TB DIM HEAD PHONES DRIVER LEFT HEAD PHONES DRIVER RIGHT TOOLMST PLAYBACK AND TALKBACK SECTION BLOCK DIAGRAM INTERNAL CONNECTIONS 25 PIN D SUB CONNECTOR STUDIO PFL TALKBACK METER TO DIM RELAY IN CONTROL ROOM SECTION PLAYBACK HEADPHONES OUT RIGHT PLAYBACK HEADPHONES OUT LEFT STUDIO SPEAKERS OUT RIGHT STUDIO SPEAKERS OUT LEFT TALKBACK DIRECT OUTPUT SWITCHED ALWAYS ON TALK...

Page 51: ...DPHONES MIX L MIX L MIX R MIX R PFL AUDIO PFL CTRL PLAYBACK AND TALKBACK SECTION INTERNAL MIX BUS 2TR 5 8 STEREO INPUT 1 4 MIX INSERT AUX EXT CTR SPEAKERS STUDIO PFL TALKBACK METER COUPLE 2TR 1 4 Technical Data ToolMst Inputs Summing inputs 4 x stereo Control room source select inputs 9 x stereo Stereo master 2 x insert in electronically balanced nominal level 6 dBu maximum input level 30 dBu inpu...

Page 52: ...ated position 95 dBA 91 dBu as above but all inputs CUT 96 dBA 92 dBu Aux out 1 or 2 PFL 95 dBA 91 dBu Control room outputs studio speaker outputs no input selected Fader open all other functions off 95 dBA 91 dBu Signal to Noise of coupled ToolMix systems are the result of the geometric addi tion of the noise voltages of the coupled devices This means that twice the num ber of input channels incr...

Page 53: ... ADT AUDIO 24 20 3 6 9 12 15 18 21 18 22 26 28 30 LOAD CAPACITOR nF 30 60 90 120 150 180 210 EQUIVALENT CABLE LENGTH OF AUDIO CABLE 100 pF m m UNITS 1 nF 10 9 Farad 1 yard 0 9144 meter 20 kHz THD 1 R LOAD 2000 Ohms OUTPUT LEVEL dBu TOOLKIT TOOLMOD TOOLMIX TOOLMST UNITS MAXIMUM OUTPUT LEVEL 20 kHz vs CAPACITOR LOAD ADT AUDIO 0 5 0 25 3 6 9 12 15 18 21 0 125 0 0 375 0 625 0 75 0 875 1 0 LOAD CAPACIT...

Page 54: ...t choice for such small systems The housing is a small stable desktop housing The dimen sions are 120 mm x 60 mm x 275 mm Brackets can be installed instead of the rubber feet that make pos sible to mount the unit to the side panel or rear pan el of a rack Alternatively a 2U high 19 top plate and a fixing bracket are available for rack mounting ToolPwr S This is the standard power supply unit of th...

Page 55: ...el It is obvious that low values of the load resistor increase the output current and therefore the output power This is Ohm s law and not a special characteristic of the Tool devices Since the maxi mum output voltage is 30 dB and the maximum output power of each output is approximately 1 Watt each heavy loaded output will increase the current consumption of the device as soon as the out put level...

Page 56: ... a ground loop If the mains voltage is very high nothing will happen at all Howev er the voltage regulators of the power supply unit regulate the high voltage down to 25 V The total power dissipation of the power unit is a lot higher and the temperature of heat sink increases If this causes trouble depends only on the ventilation of fresh air along the heat sink of the power supply If the airflow ...

Page 57: ...y of the entire device Temperature The recommended operating temperature range is from 10 C to 45 C The devices will also operate at temperatures above and below this limit of course However operating at temperatures outside this range for long periods can reduce the lifespan Continuous Operation Under normal conditions we recommend that you power down the devices if they are not in use The units ...

Page 58: ... OF FIRE DAMAGE AND ELECTRIC SHOCK Lifespan Though no regular maintenance is necessary you can reduce wear and tear and extend the lifespan by following some simple rules Avoid smoking dust dirt and moisture and use all controls on a regular basis The electro mechanical components like switches pots fad ers relays etc are more or less sensitive to dust moisture smoke and dirt When used regularly t...

Page 59: ...d is leg ible for service under this Limited Warranty we will repair or replace any defective parts within a reasonable period and free of charge for work and parts This Limited Warranty gives you specific legal rights subject to speci fied conditions You may also have other legal rights which apply to the product you have acquired These legal rights vary from coun try to country Some places do no...

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