BRUEL & KJAER 2307, Service Instruction

Page 1: ...Bruel Kjcer 2307 Level Recorder valid from serial no 478064 037 0107...

Page 2: ...performance For this reason there may be small differencies between the instrument and the Service Instruction However the local Representative Service is in possession of all informa tion regarding...

Page 3: ...0 Lower Limiting Frlqulncy I I I ZA 0004 r I 24V 24V AC teed bock A5 A6 ZE0100 K2 Kl 20V 20V 280V I _ _ _ _ _ _1 J _ 25V ZL 0034 25 dB 0 0 0 o 0 aOdB o 110 dB Potentio meter Range I 24V I ZE 0100 mm s...

Page 4: ...driving system is protected from being over driven by the first limiter Q 18 19 and 20 The threshold of the limiter is designed so that the drive system reaches full driving power when the signal fluc...

Page 5: ...c Stop F 12V 12V 20V 3i V O BVl SL t 20V2 3 V t 2QV2 1 2V 3 3GV Automat ic Stop R i2V 12V 15V 3LV O BVl JL 20V2 JOV 20V2 12 V 3 30V Polar Rec 12 V 12 V 20V 3LV 0_BV OV t20 V2 JOV 20 1 2 t12 V J 30V X...

Page 6: ...output of which via the gate is applied to the start stop f lip flop Automatic Stop reverse As above except that the output from the inverter V 82 83 is used to operate the motor The pen lift relay is...

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Page 8: ...FREO 200 Hz RECTIFIER RESPONSE RMS POTENTIOMETER RANGE 50 dB WRITING WIDTH 50 mm PAPER DR IVE FUNCTION Cont Forward PAPER SPEED 1 mm sec Paper OP 0102 OP 0224 10 75 20 dB Input signal 4 V 1000 Hz Star...

Page 9: ...gnal and check the overshoot when the signal is applied again Overshoot max 1 mm If necessary adjust P 6 Resolution Whenever P 6 is adjusted check the resolution power item 2 3 Possible reason for fau...

Page 10: ...e turned to give zero n If for any reason the FET s V 6 and V 7 has to be replaced turn P 5 to max resistance before the Level Recorder is switched on to prevent any transistor break down in the outpu...

Page 11: ...CTIFIER RESPONSE to Average Sapphire deflection 10 1 dB Switch RECTIFIER RESPONSE to Peak Sapphire deflection 23 dB Disconnect the AC input signal and connect a DC voltage The DC voltage will give the...

Page 12: ...he drawing shows above Adjust the input voltage at approx 20 kHz for a pen deflection to just a little higher than 50 dB line Turn the generator to approx 20 Hz and check that the pen deflection is un...

Page 13: ...ot on the PAPER ADJUSTMENT wheel Insert a recording paper with preprinted frequency lines Set PAPER ADJUSTMENT wheel to a start position of f ins 10Hz Run one chart by pressing START and f ine adjust...

Page 14: ...ing reading on the metallic scale Note Under no circumstances should oil be applied to the writing system blue brown violet white green yeHow 9I Hn system Remove the writing Potentiometer Disconnect t...

Page 15: ...or adjustment to mains frequency Remove the two screws YO 0337 The gear wheels can now be removed When assembling check that the face for the gear wheels don t touch each other The distance between th...

Page 16: ...M 1021 UA 035 UM 0502 UM 0022 ZH 0014 ZA 0004 Place a pin tuck in an angle of 90 degrees in Drive Shaft lion the right side of the instrument Start the motor by pressing Start Check that the clutch sl...

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Page 18: ...CE 2002 Polyester 0 1 IlF 250 V CS 0013 P 2 Trimmer Carbon 0 25W 10kn Ceramic 1 pF 400 V CK 0100 P 3 50kn Polycarbonate 0 47 IlF 100 V CS 0335 P4 470 n Ceramic 1 pF 400 V CK 0100 P5 5kn Polyester 2 I...

Page 19: ...kO RB 4470 R 26 29 10 kn R 316 3 9 MO RA 0039 R30 31 4 7 kn R 32 33 lMn Vl 2 FET selected N El02 VB 1028 R34 560 0 V 3 5 Silicon NPN BC 107 VB 1032 R35 1 5 kO V6 7 FET Selected N El02 VB 1013 R36 5 3...

Page 20: ...16 Silicon 400 V l A 1 N 4004 400 V l A 1 N 4004 Zener 15 3 17 V 5 mA ZF 16 Carbon 1 3W 5 3kn 10kn 2 15 2 kn 5 6 kn 2kn 5 lOkn 4 2 kn 10 2kn 50 n lkn 5 6 3 kO 16 kO c J R t c 4 Q 1 Q Ooy STOCK CIRCUIT...

Page 21: ...7 VB 0054 V45 PNP 40406 VB 0053 V46 NPN BC 107 VB 1032 V 47 4a PNP BCW62B VB 0049 V 49 50 NPN BC 107 VB 1032 V 51 65 67 PNP BCW62B VB 0049 V 68 74 NPN BC 107 VB 1032 V75 PNP BCW62B VB 0049 Va4 NPN BC...

Page 22: ...120 pF 400 V 20 kn 220 n 5 6 6 V l0 mA 400 V l A 2 5 2 5 10 10 5 kn 40 kn lkn 8 5 kn 4 7 kO 2kn lkn 20 kn 4 7 kO 100 n 40406 BC 107 BCW62B BCW 82 B BCW62B _ e 0 c I 0 N 10 g 10 10 10 L ______ XZ 0029...

Page 23: ...Functions Silicon 200VI 40 rnA Zener 21 6 26 4 VI 4 rnA Silicon 400 VilA Zener 5 0 6 0 VI Silicon 300V1200mA Zener 15 3 17 VI 5 rnA Silicon 300 V1200 rnA 400 V I lA Carbon Metal Carbon Metal Carbon 1...

Page 24: ...40 10kU R 161 42 kU R 241 2kU R 162 69 kU R 242 5 10kU R 163 115 kU R 243 3kU R 164 200 kU R 244 10kU R 165 350kU R 245 20 kU R 166 630kU R 283 284 10kU R 167 250kU R 285 20kU R 168 603 kU R 286 50kU...

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