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Содержание LDX-3207

Страница 1: ...erutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In stock Ready to ship TAR certified secure asset solutions Expert team I Trust guarantee I 100 satisfaction All trademarks brand names and brands appearing herein are the property of their respective owne...

Страница 2: ... LDX 3207 PREClSION CURRENT SOURCE August 8 1986 1986 ILX L i g h t w a v e C o r p o r a t i o n Bozeman Montana U S A 406 586 1244 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 3: ...r n i n s t ructions R e t u r n i n g a n I n s t r u m e n t Before r e t u r n i n g an instrument obtain a r e t u r n authorization number from the factory The instrument should be shipped in the o r i g i n a l packing carton or one that w i l l provide equal protection Shipping damage i s not covered by t h i s warranty Send the instrument t r a n s p o r t a t i o n pre paid t o the factor...

Страница 4: ... 16 WARM UP AND ENVIRONMENTAL CCNSIDERATICNS 9 2 17 OPERATING INSTRUCTICNS 9 2 18 Connecting t o Y o u r D e v i c e 9 2 19 Grounding C o n s i d e r a t i o nr 1 0 2 20 General O p e r a t i n g Procedure 11 REMOTE PROCRAMMIM 11 3 1 INTROUXTICN I 1 3 2 CAPABILITIES 11 3 3 PREPARATICN FOR BUS CCNTROL 11 3 4 REMOTE PROCRAMMING PROCEWRE 13 3 5 DEVICE DEPENDENT COMMAND SET 13 3 6 B1 Beep Comnand 1 4 ...

Страница 5: ...1205 I EEE 488 INTERFACE 33 6 1 OVERVIEW 33 6 2 SPECIFICATIONS 33 6 3 INSTALLATICN 34 6 4 MAINTENANCE 35 6 5 CALIBRATICN 36 SCHEMATIC DIGRAMS 39 7 1 MAIN CIRCUIT BOARDCaPONENT LAYOUT 40 7 2 FRONT PANEL CIRCUIT BOARD COMPONENT LAYOUT 41 7 3 MAIN CIRCUIT BOARD ANALOC SECTICN SCHEMATIC DIAGRAM 42 7 4 MAIN CIRCUIT BOARD DIGITAL SECTICN SCHEMATIC DIAGRAM 43 7 5 MAIN CIRCUIT BOARD POWER SUPPLl ES SCHEMA...

Страница 6: ... e i n three modes 1 manually via a 1 0 t u r n precision c o n t r o l knob 2 through an analog voltage control rnodulation p o r t and 3 remotely v i a the optional model 1205 GPIB IEEE 488 Interface Features of the LDX 3207 include I n t u i t i v e f r o n t panel layout Highly v i s i b l e green LED display Display resolution of 0 1 rnA F u l l y independent precision current l i m i t c o n...

Страница 7: ...XIMUM READING ACCWACY 25 C TEMPERATURE COEFFICIENT CURRENT LlMlT RANGE ACCURACY 0 t o 200 mA f l o a t i n g 5 v o l t s 100 PPM C ambient 0 01 rms typical 3 1 2 d i g i t LED display 199 9 mA 0 1 m4 100 ppm C 0 t o 200 mA 1 0 mA independent of output compl iance voltage Cur rent l i m i t adjustment does not i n t e r f e r e w i t h normal output operation a dumny load i s not required Current l...

Страница 8: ...5V or 210 250V jumper selectable 50 60 Hz 88 mm x 21 mm x 269 mn 3 46 x 8 36 x 10 6 0 to 50 C operating 40 to 70 C storage 1 hour to rated accuracy Output binding post isolated from chassis ground modulation input BNC differential input Our goal is to make the best laser diode instrumentation available anywhere To achieve this end we need your ideas and comnents on ways w e can improve our product...

Страница 9: ...t can be t i l t e d up f o r b e t t e r viewing by r o t a t i n g the legs d o m w a r d u n t i l they snap i n t o the down and p o s i t ion 2 4 Rack Mounting The LDX 3207 may be rack mounted s i n g l y by i n s t a l I ing a rack oc ked mount flange on one side of the enclosure and a 1 2 w i d t h f i l l e r panel on the o t h e r side A l t e r n a t i v e l y two X series enclosures can...

Страница 10: ... an open c rcuit or requires greater than 5 volt compliance LIMIT Output is in current limit mode LIMIT DlSP Display is reading the current limit settmg DISPLAY M A I N OUTPUT ADJUSTMENT KNOB PUSH TO VIEW OUTPUT TERMINALS GPIB IEEE 488 VOLTAGE CONTROL REMOTE MODE INPUT PORT INDICATOR A N D LOCAL SWITCH Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 11: ...t of the c u r r e n t l i m i t Furthermore since the current l i m i t c i r c u i t r y i s f u l l y independent of the main current c o n t r o l the current l i m i t can be adjusted s a f e l y even v h i l ethe output i s active 2 9 Output Current Adjustment Primary output current c o n t r o l i s provided by the large knob located on the f r o n t panel o f the LDX 3207 This knob i s con...

Страница 12: ... vice versa When the ouptut i s o f f a low impedence shunt i s active across the output terminals I n t h i s s t a t e i t i s safe t o connect or remove sensitive devices from the 3207 even though power supply i t s e l f i s on Turning the output on i n i t i a t e s a slow turn on sequence that takes a few seconds t o complete During t h i s period the impedence of the i n t e r n a l shunt s...

Страница 13: ...nector being p o s i t i v e w i t h respect t o the shell Thus w i t h the main current c o n t r o l knob set t o 100 m 4 and a 0 5 v o l t input present at the MOD input the r e s u l t i n g current output would be 150 m4 The MOD input l i k e the main current c o n t r o l knob i s disabled when the 3207 i s i n REMOTE mode 2 13 Fault Indicators The LDX 3207 has two visual front panel f a u l...

Страница 14: ... t h e r e a r pane 1 a d d i t i o n a l l y c o n t a i n s t h e s t a n d a r d GPIB IEEE 488 b u s c o n n e c t o r a n d a d d r e s s s e l e c t o r s w i t c h O u t p u t c u r r e n t i s a v a i l a b l e a t t h e 9 p i n D c o n n e c t o r j 1 0 4 W i t h t h e 3 1 5 4 P h o t o d i o d e F e e d b a c k m o d u l e i s i a J t 1104 i s u t i l i z e d f o r t h e p h o t o d i o d...

Страница 15: ...g C o n s i d e r a t i o n s he o u t p u t s o f t h e LDX 3207 a r e iso1ate d f r o m c h a s s i s g r o u n d a l l o w i n g e i t h e r o u t p u t t e r m i n a l t o be g r o u n d e d a t t h e u s e r s o p t i o n 2 20 G e n e r a l O p e r a t i n g P r o c e d u r e The LDX 3207 c a n be o p e r a t e d i n s e v e r a l modes The f o l l o w i n g o p e r a t i n g p r o c e d u r ...

Страница 16: ...lock Earth Ground itor Photodiode itor Photodiode Laser Anode RED Laser Cathode BLAC K LDX 3207 D Connector Pinout j104 Fig 2 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 17: ...o l o f the LDX 3207 output c u r r e n t l e v e l w i t h 12 b i t 0 05 m4 r e s o l u t i o n as we1 l as c o n t r o l over the output o f f o n switch and audible tone I n addition the instrument s t a t u s OPEN CKT LIMIT C 1 REMOTE can be read back over the bus Other features i n c l ude A s i n p l e and p r e d i c t a b l e comnand set 35 msec c o m a n d throughput F u l l l o cal remot...

Страница 18: ...H P O S I T I O N S ADDRESS 1 2 3 4 5 F i p u r e 3 1 Bus A d d r e s s S e l e c t o r S w i t c h S e t t i n g s Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 19: ...i n t e r f a c e w i l l respond by sending a s t r i n g of f i v e ASCll characters that indicate whether or not the l a s t cormand was understood and the status of the f ront panel indicators OPEN CM LIMIT CN REMOTE For example the s t r i n g 00011 indicates that the previous comnand was understood and executed and that the instrument i s operating normal l y in remote mode w i t h the outpu...

Страница 20: ...a n d i s i n c o r r e c t l y formatted the LDX 3207 w i l l s t i l l s w i t c h t o remote mode i f i t was p r e v i o u s l y i n l o c a l mode but the remote mode output l e v e l w i l l remain a t i t s p r e v i o u s l y set l e v e l A d d i t i o n a l I y t h e s o f t w a r e comnand e r r o r f l a g i s set whenever a comnand i s received t h a t cannot be interpreted This e r r...

Страница 21: ...put during the turn on sequence I n cases where i t i s only necessary t o reduce the LDX 3207 output t o zero rather than a c t u a l l y shorting the output terminals we p r e f e r t o execute a CO comnand rather than a 00 comnand I n t h i s case the LDX 3207 output can be r a p i d l y increased again by s imp ly execut ing another Cnm comnand 3 1 0 INPUT SYNTAX This sect ion describes the sy...

Страница 22: ...ese characters i s shown i n Figure 3 5 3 12 INTERFACE MESSSES I n addition t o the device dependent corrrnand set described above Sect ions 3 6 through 3 9 the 1205 responds t o a number o f i n t e r f a c e messages in order t o p a r t i c i p a t e i n IEEE 488 bus comnunication P r o g r a m e r s working vvith high level languages l i k e BASIC generally need not be concerned w i t h these ...

Страница 23: ...n a l beeper INCORRECT COMMAlrlD STRINGS The a i s an unrecognized character When the 61 i s encountered the software e r r o r status b i t i s set and processing continues normal ly A numeric was expected f o l lowing the t h i r d C The m i s s i o n of t h i s numeric w i l l cause the software e r r o r status b i t t o be set but processing w i l l continue normally beginning w i t h B1 comm...

Страница 24: ...EN CKT SOFTWARE COMMAND ERROR FLAC Nnnnn N O OFF LOCAL REMOTE NOT ACT IVE ACT IVE NOT ACTIVE ACTIVE NOT SET SET Figure 3 5 I n t e r p r e t a t i o n of the ASCII s t r i n g generated in response t o a G O command Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 25: ...essage that causes the 1205 t o reset t o i t s power up configuration output current set t o 0 00 mA mode set t o local S D C Local Lockout A m u l t i l i n e message that disables a l l LDX 3207 front panel c o n t r o l s except the LIMIT knob Go To Local Causes the LDX 3207 t o switch t o LOCAL mode Selected Device Clear Causes the 1205 t o reset t o i t s power up configuration output o f f ...

Страница 26: ...T PRINT mA mW PRINT P PI I I P I C P I I P P I I PP E P P P PI I I N I T I A L I Z E DMM AND CURRENT SOURCE P R I M 3 1 FSRlSiT2 S e t DMM f o r t h e f o l l o w i n g modes F5 mA DC R1 2000 mA f u l l s c a l e S 1 Medium r a t e T 2 E x t e r n a l t r i g g e r PRINT 32 01COm S e t LDX 3207 a s f 01 1ows 0 1 O u t p u t o n C0 O u t p u t c u r r e n t 0 FOR X f TO 1000 I NEXT X Wai t f o r 3 ...

Страница 27: ...04 5 1 2 N E X l I Close 1 oop 520 522 END 900 902 ERROR RETURN PROCESSING 904 950 952 SOUND C Sound tone 954 PRINT CURRENT SOURCE NOT READY P r i n t e r r o r message 9 5 6 END Example 3 1 Remote P r o g r a m i n g Example Using TBASIC TransEra Corp Cont d Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 28: ... N D IBTRG IBCLR IBPCT I B S I C IBLOC IBPPC IBBNfi IBONL IBRSC I BSRE IBRSV IBPAD I BSAD IB I ST IB W IBEOS IBTMO 1BEOT IBRDF IE WRTF 6 8 CALL IBINIT2 IBGTS IBCAC IBWAIT IBPOKE IBWRT IBWRTA IBCMD IBCPlDA IBRD IBR DF IBSTOP IBRPP IBRSP IBDIAG IBXTRC IBRDI IBWRTI IBRDIfilIBWRTIA IBST LIIBERR I CNT 7 4 7 6 A DEV1 I n i t i a l i z e b u s a d d r e s s 1 78 CALL IBFIND A BDl 8 0 I F BD1 0 THEN 9 2 0...

Страница 29: ...Append t h e C command c h a r a c t e r Send c u r r e n t l e v e l t o LDX 3207 Command 3207 t o l o a d s t a t u s b i t s Get i n s t r u m e n t s t a t u s b i t s Check i n s t r u m e n t s t a t u s T r i g g e r DMM Read DMM C o n v e r t r e a d i n g t o m i l l i w a t t s IMAGES I I PRINT USINO 1MAGEI I L P r i n t o u t r e s u l t s I NEXT I 0 C l o s e 1 oop END 0 BEEP Sound t o...

Страница 30: ...ump t o ground bypassing both the FET svrritch and output terminals Control of the precision c u r r e n t sink depends on the operating mode o f the LDX 3207 LOCAL MCOE I n t h i s mode the amount of current entering the precision current sink depends on the sum of the c o n t r o l s e t t i n g of the main current set c o n t r o l knob and the c o n t r o l signal derived f r o m the modulatio...

Страница 31: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 32: ... t h i s a m p l i f i e r i s sampled by the f ront panel display A D converter when the LIMIT DlSP l i m i t display mode i s active This mode becomes active when the front panel current I i m i t knob i s momentarily pressed c l o s i n g 55 and t r i g g e r i n g a 5 second c o n t r o l pulse generated by U26 This c o n t r o l pulse i s level s h i f t e d by comparators in U12 which i n t ...

Страница 33: ... l MOD input connector drives a precision wide band instrumentation amp1 i f i e r U11 al lowing the c o n t r o l signal applied t o t h i s p o r t t o use a d i f f e r e n t ground than the current output terminals of the LDX 3207 However due t o the input comnon mode voltage r e s t r i c t i o n s of the U11 the MOD input should be w i t h i n about 12 v o l t s of the current output termina...

Страница 34: ... LDX 3207 may only be c o n t r o l l e d v i a the GPIB IEEE 488 i n t e r f a c e This mode is useful when the instrument is used in an automated t e s t setup where f ront panel c o n t r o l is undesirable Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 35: ...ipment Recommended t e s t equipment for c a l i b r a t i n g the LDX 3207 i s l i s t e d i n Table 5 1 Equipment other than t h a t shown i n the t a b l e may be used so long as the specifications meet or exceed those listed Table 5 1 Recomnended Test Equipment Description M f r Mode l Specification DMM Fluke 8840A DC V o l t s 4 1 0 V 0 008 Resistance 10 ohms 0 054 Resistor 10 ohm W i rewound...

Страница 36: ...er near the rear of the instrument see a l s o Section 5 9 Where possible perform the c a l i b r a t i o n steps w i t h the cover s l i d back about 1 inch 2 D i s l a v C a l i b r a t i o n Disconnect any signals applied t o the f r o n t panel MOD input connector Connect the shunt r e s i s t o r t o the output of the 3207 Adjust the LIMIT s e t t i n g t o approximately 120 rnA t u r n the o...

Страница 37: ...l i b r a t i o n procedure R e i n s t a l l the top cover and i t s retaining screws 5 7 FUSE REPLACEMENT The fuse i s accessible from the rear panel of the LDX 3207 Before replacing the fuse t u r n power o f f and disconnect the l i n e cord Use o n l y the fuses indicated below i n Table 5 2 Table 5 2 Fuse Rep lacement Line voltage Fuse Rep lacement 210 250 1 8 Amp 3AC Slow B b w 5 8 L I N E ...

Страница 38: ...peel out the decorative p l a s t i c inserts located on the sides of the f r o n t bezel Removal of these inserts a l lows access t o the four f r o n t panel r e t a i n i n g screws There are two of these screws on each side of the bezel On each side they are located above and below two larger f l a t head screws Once the four retaining screws are removed the f r o n t panel may be pressed out ...

Страница 39: ...I Switch o u t p u t O off l on Cnnn nnn Set output c u r r e n t t o nnn nnn mA B1 Beep G O Get e r r o r status Instrument i s o p t i c a l l y i s o l a t e d f rom IEEE 488 bus COMMPrclD EXECUTICN TIME Approximately 40 msec ACCURACY PNALCC CONTROL RESOLUTICN 12 bi t 0 05 rnA PNALCC CONTROL ACCURACY 0 1 mA PWER REQUIREMENTS lSOLATED SUPPLY 5 v o l t s 500 mA max INSTRUMENT SUPPLY 5 v o l t s 1...

Страница 40: ...he 1205 CPIB lEEE 488 interface board contains s t a t i c sensitive parts Handle the circuit board o n l y by i t s edges and work at a s t a t i c free work station I n s e r t the supplied side r a i l support i n t o the upper channel o f the 3207 s right hand side r a i l S l i d e the support t o a p o s i t i o n approximately 1 5 inches f r o m the f r o n t bezel See Figure 6 1 Temporaril...

Страница 41: ...t a i n i n g screws on the rear panel as vvell as the supplied side r a i l mounting screw k Proceed w i t h the c a l i b r a t i o n o u t l i n e d below in Section 6 5 6 4 MAINTENANCE The f o l lowing c a l i b r a t ion procedure should be performed annual l y as a p a r t o f the o v e r a l l LDX 3207 c a l i b r a t i o n o r a f t e r i n s t a l l i n g the 1205 i n t e r f a c e board ...

Страница 42: ...f 10 Ohm Shunt With the Fluke 8840A in 4 WIRE OHMS mode measure and record the resistance of the 10 ohm nominal shunt resistor C a l c u l a t e the voltage drop across the shunt r e s i s t o r f o r a 100 00 mA output current V 0 1000 Measured Shunt Resistance Record t h i s c a l c u l a t e d voltage f o r use in Step 2 below The f o l lowing steps require that the top cover of the 3207 be rem...

Страница 43: ... 10 Ohm Shunt With the Fluke 8840A in 4 WIRE OHMS mode measure and record the resistance of the 10 ohm nominal shunt resistor C a l c u l a t e the voltage drop across the shunt r e s i s t o r f o r a 100 00 m4 output current V 0 1000 Measured Shunt Resistance Record t h i s c a l c u l a t e d voltage f o r use in Step 2 below The f o l lowing steps require that the top cover of the 3207 be remo...

Страница 44: ...40A in C C WLT mode measure the voltage drop across the 10 ohm shunt resistor Adjust R35 see Diagram 7 1 u n t i l t h e voltage drop i s equal t o that c a l c u l a t e d for a 100 00 rr 4current as c a l c u l a t e d above in step 1 This completes the 1205 i n t e r f a c e cal i b r a t ion procedure Reinstal I the LDX 3207 cover and retaining screws The LDX 3207 may be returned t o LOCAL mod...

Страница 45: ...O I BEOT I ERDF I EWRTF 120 CALL IBINIT2 IBGTS IBCAC IBWAIT IBPOKE IBWRT IBWRTAIIBCF lD IBC lDA IBRD IE RDA IBSTOP IBRPP IBRSP IBDIAGIIBXTRC IBHDI I BWRTI I E R D I A 1 6 W R T I I l T A I E E R W I BCNTL 3 2 2 A D E V l 0 3 2 4 CALL I B F I N D A 3 BD 3 2 6 I F ED 0 THEN 9 2 0 3 3 0 332 AS O l 1 0 0 3 3 4 CALL I BURT BDL AS I n i t i a l i z e t h e d e v i c e ChecK f o r e r r o r r e t u r n W...

Страница 46: ...0 DlSP LASER LED OUTPUT vs DRIVE CURRENT 260 DlSP 270 DlSP DRIVE CURRENT OUTPUT 280 DlSP mA m w 290 300 Initialize DMM and Current source 310 320 OUTPUT 701 FSRlSlT2 set DMM for the following modes 330 F5 mA DC 340 R1 2000 mA full scale 350 S1 Medium rate 360 T2 External trigger 370 OUTPUT 702 01CO set LDX 3207 as follows 380 01 Output on 390 C O Output current 0 400 410 FOR I 1 TO 1000 wdit for 3...

Страница 47: ... turn o f f out put 700 STOP 1000 BEEP 1010 DISP 3207 ERROR 1020 END 10 OUTPUT 701 OICOSl Set 3207 output on w i t h current t o zero 15 and set step size t o 1 mA 20 FOK I d TO 70 30 TRIGGER 701 Send trigger t o t e l l 3207 t o step current 40 NEXT I 100 GOT0 10 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 48: ...Main Ci r c u i t Board Analog Sect ion Schematic Diagram 7 4 Main C i r c u i t Board D i g i t a l Section Schematic Diagram 7 5 Main C i r c u i t Board Power Supplies Schematic Diagram 7 6 Front Panel C i r c u i t Board Schematic Diagram Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 49: ...I Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 50: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 51: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 52: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 53: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 54: ...l l Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 55: ...quipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentation Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate representative or authorized distributor for any manufacturer listed herein We re here to make your life easier How...

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