AUD-08B manual ver1_1 - NPI Electronic Instruments
Contents
1. D Electronic Instruments for the Life Sciences pade e peAsuve OPERATING INSTRUCTIONS AND SYSTEM DESCRIPTION FOR THE AUD 08 B AUDIO MONITOR AUD 08 B AUDIO MONITOR VERSION 1 1 npi 2014 npi electronic GmbH Bauhofring 16 D 71732 Tamm Germany Phone 49 0 7141 9730230 Fax 49 0 7141 9730240 support npielectronic com http www npielectronic com AUD O8 B User Manual Table of Contents de ALC LY ROO BANON S eedan A E R E A tamageaumeniet 3 Dr AUD OS B uri a taxes Genenyacsaasadetedasians vaansancpeutesancdasndutadactnnt ets 4 Dees CONDON DE n races Shep eda rene es ee nts teats Ghee eta tsa eee ae acseie alana ea ie wuae beedoniee 4 Z2 AVS E DES eri NUO Ms ecch steed saa tesnts T etic 4 2 5 DCSCTIPLION Ob INE Front Pane boerse a da aeinanaenasendswsysanend 4 ZA Descriptionor the Rear Panelecrsonsocciieenanigi aie auntie ead 7 2 3 System BUS Interconmnectine devices inis a a E 8 Ia TOC EM IED bs Meme te eerie eee S eee an eer eo ee an aera 9 version 1 1 page 2 AUD O8 B User Manual 1 Safety Regulations VERY IMPORTANT Instruments and components supplied by npi electronic are NOT intended for clinical use or medical purposes e g for diagnosis or treatment of humans or for any other life supporting system npi electronic disclaims any warranties for such purpose Equipment supplied by npi electronic must be operated only by selected trained and adequately instructed personn2. dio monitor is switched OFF MODE NOISE The voltage of the INPUT signal is high pass filtered SELECT amplified and transduced to a sound 2V 1V 0 5 V The audio monitor works in NOISE MODE with THRESHOLD function 100 THRESHOLD is set to the selected value 2 V 1 V or 0 5 V see also 7 5 VOLUME potentiometer HEADPHONES linked to connector 6 Turning clockwise will turn up the sound Potentiometer for setting the VOLUME of the internal speaker or MIN VOLUME version 1 1 page 5 AUD O8 B User Manual 6 HEADPHONES connector Stereo jack connector for HEADPHONES or an external amplifier e g yo active speakers HEADPHONES 7 THRESHOLD potentiometer Potentiometer for setting the THRESHOLD in of the value set by 0 fey INPUT MODE switch 4 0 5 V 1 V 2 V For example if the INPUT go MODE switch 4 is set to 2 V and the THRESHOLD potentiometer is set 90 to 80 the resulting THRESHOLD for monitoring the OUTPUT signal O 100 will be at 1 6 V i e only signals greater than 1 6 V will be converted into a THRESHOLD sound NOISE 4 30 20 10 8 EXTERNAL INPUT connector BNC connector for connecting the external input signal To monitor this signal the CHANNEL SELECT rotary switch 3 must be set to EXT EXTERNAL INPUT 9 GROUND connector Banana plug providing ground The plug is connected internally to the shields of the BNC connectors GROUND version 1 1 pa
3. el For details please consult the GENERAL TERMS OF DELIVERY AND CONDITIONS OF BUSINESS of npi electronic D 71732 Tamm Germany 1 2 3 4 5 GENERAL This system is designed for use in scientific laboratories and must be operated by trained staff only General safety regulations for operating electrical devices should be followed AC MAINS CONNECTION While working with the npi systems always adhere to the appropriate safety measures for handling electronic devices Before using any device please read manuals and instructions carefully The device is to be operated only at 115 230 Volt 60 50 Hz AC Please check for appropriate line voltage before connecting any system to mains Always use a three wire line cord and a mains power plug with a protection contact connected to ground protective earth Before opening the cabinet unplug the instrument Unplug the instrument when replacing the fuse or changing line voltage Replace fuse only with an appropriate specified type STATIC ELECTRICITY Electronic equipment is sensitive to static discharges Some devices such as sensor inputs are equipped with very sensitive FET amplifiers which can be damaged by electrostatic charge and must therefore be handled with care Electrostatic discharge can be avoided by touching a grounded metal surface when changing or adjusting sensors Always turn power off when adding or removing modules connecting or disconnecting sensors headstages o
4. ge 6 AUD O8 B User Manual 2 4 Description of the Rear Panel OUTPUT SYSTEM BUS AUDIO TO EXTERNAL SIGNAL SPEAKER SYSTEM o ea SYSTEM BUS npi electronic GmbH DE 71732 Tamm www npielectronic com Figure 2 AUD 08 B rear panel view 1 SYSTEM BUS connector see also chapter 2 5 50 pin connecter providing power lines and data lines for connection of the AUD 08 B to a EXT 02 B system Three EXT 02 B in slave configuration can be connected to one EXT 02 B in master configuration One electrode resistance meter REL 08 B and one audio monitor AUD 08 B can also be connected via this system bus version 1 1 page 7 AUD O8 B User Manual 2 5 System Bus interconnecting devices Connecting multiple devices The System Bus interconnects all amplifiers EXT 02 B in master and slave configuration and monitoring devices REL 08 B AUD 08 B It provides both power lines and all signal lines The number of signal lines depends on the number of connected amplifiers All devices of the B series EXT 02 B REL 08 B AUD 08 B have two SYSTEM BUS connectors at the rear panel 5 Figure 2 To interconnect two or more devices simply use the provided cable and plug it into one of the SYTEM BUS connectors of each device This will result in a chain of devices which has a maximum length of six 1 x EXT 02 B master 3 x EXT 02 B slave 1 x AUD 08 B 1 x REL 08 B The order in which the devices are chai
5. ion of the Front Panel AUD 08 B AUDIO NIONITOR npi POWER F s yi NOISE 0 5V 2 ON R lien OFF Aal 1V A 5 2 6 Ak ala e x PITCH a 2V e S B Ty af 4 CHANNEL 4 a MN MAX SELECT SELECT VOLUME o 40 50 60 1 kaS k 2 O gt os EXTERNAL as GROUND INPUT THRESHOLD HEADPHONES Figure 1 AUD 08 B front panel view version 1 1 page 4 AUD O8 B User Manual In the following description of the front panel elements each element has a number that is related to that in Figure 1 The number is followed by the name in uppercase letters written on the front panel and the type of the element in lowercase letters Then a short description of the element is given 1 POWER LED POWER LED indicating that the EXT 02 B is powered on 2 POWER switch ON Switch for turning the EXT 02 B amplifier ON upper position or OFF lower position 3 CHANNEL SELECT rotary switch wd 9 position switch for selecting the channel to be monitored Position 0 7 o L 6 correspond to the input channels from the EXT 02 B in the system EXT is i the signal from the EXTERNAL INPUT connector 8 0 EXT CHANNEL SELECT 4 MODE SELECT rotary switch Switch for selecting the operation mode NORE Oy PITCH The voltage of the INPUT signal is converted into a OFF J 1V tone with a frequency equivalent to the amplitude of PITCH 2V the INPUT voltage w OFF The au
6. ned up is not important Since it is a bus system all positions are treated equally Channel addresses When using monitoring devices REL 08 B AUD 08 B it is important that each recording channel has its dedicated address i e that there is no more than one channel on a single address number This can be achieved by selecting a channel s address number with the CHANNEL ADDRESS rotary switch 3 Figure 2 on the rear panel of the EXT 02 B in slave configuration The EXT 02 B in master configuration does not have a CHANNEL ADDRESS rotary switch Its recording channels will always addressed to O for channel A and 1 for channel B Therefore the selectable addresses for the EXT 02 B in slave configuration begin at 2 and go up to 7 Each recording channel can be monitored either acoustically with the AUD 08 B or its electrode resistance can be measured with the REL 08 B These devices have a CHANNEL SELECT rotary switch on their front panel whose numbers correspond to the channel address number selected at each channel of the EXT 02 B version 1 1 page 8 3 Technical Data AUDIO MODE THRESHOLD INPUT Voltage RANGE VOLUME control HEAD PHONES Dimensions version 1 1 AUD O8 B User Manual PITCH NOISE THRESHOLD selected by rotary switch with OFF position RANGE and FINE control range 0 5 V 1 V or 2 V max BNC connector impedance 1 MQ high pass filtered in NOISE mode 10 V volume of the speaker one turn po
7. r other components from the instrument or 19 cabinet TEMPERATURE DRIFT WARM UP TIME All analog electronic systems are sensitive to temperature changes Therefore all electronic instruments containing analog circuits should be used only in a warmed up condition 1 e after internal temperature has reached steady state values In most cases a warm up period of 20 30 minutes is sufficient HANDLING Please protect the device from moisture heat radiation and corrosive chemicals version 1 1 page 3 AUD O8 B User Manual 2 AUD 08 B 2 1 Components The following items are shipped with the AUD 08 B system Audio Monitor AUD 08 B User manual System Bus cable Cr OF C6 2 2 System Description The AUD 08 B unit is a acoustic monitor It only works in combination with the EXT 02 B system to which it is connected via the system bus The signal that is used for audio monitoring is the 10 fold amplified DC signal This signal is not high or lowpass filtered or further amplified independent of the settings on the EXT 02 B front panel Only the NOTCH filter if activated is applied to this signal The AUD 08 B is built into a small desktop cabinet with a built in loudspeaker and two audio modes In PITCH mode the voltage input signal is converted to a tone and in NOISE mode the signal is highpass filtered to monitor the noise A THRESHOLD function Gn NOISE mode can be used for masking the noise of the baseline 2 3 Descript
8. tentiometer 3 5 mm stereo jack audio connector kQ 1 V max 305 x 180 x 105 mm W x Dx H page 9
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