Ludlum Measurements 4906 User manual

LUDLUM MODEL 4906 SERIES
HAND AND FOOT MONITOR
TECHNICAL MANUAL
September 2018

LUDLUM MODEL 4906 SERIES
HAND AND FOOT MONITOR
TECHNICAL MANUAL
September 2018

Model4906SeriesTechnicalManual
Ludlum Measurements, Inc. Page 1 September 2018
STATEMENT OF WARRANTY
Ludlum Measurements, Inc. warrants the products covered in this manual to be free
of defects due to workmanship, material, and design for a period of twelve months
from the date of delivery. The calibration of a product is warranted to be within its
specified accuracy limits at the time of shipment. In the event of instrument failure,
notify Ludlum Measurements to determine if repair, recalibration, or replacement is
required.
This warranty excludes the replacement of photomultiplier tubes, G-M and
proportional tubes, and scintillation crystals which are broken due to excessive
physical abuse or used for purposes other than intended.
There are no warranties, express or implied, including without limitation any implied
warranty of merchantability or fitness, which extend beyond the description of the
face there of. If the product does not perform as warranted herein, purchaser’s sole
remedy shall be repair or replacement, at the option of Ludlum Measurements. In no
event will Ludlum Measurements be liable for damages, lost revenue, lost wages, or
any other incidental or consequential damages, arising from the purchase, use, or
inability to use product.
RETURN OF GOODS TO MANUFACTURER
If equipment needs to be returned to Ludlum Measurements, Inc. for repair or calibration, please
send to the address below. All shipments should include documentation containing return shipping
address, customer name, telephone number, description of service requested, and all other necessary
information. Your cooperation will expedite the return of your equipment.
LUDLUM MEASUREMENTS, INC.
ATTN: REPAIR DEPARTMENT
501 OAK STREET
SWEETWATER, TX 79556
800-622-0828 325-235-5494
FAX [phone]

Model4906SeriesTechnicalManual
Ludlum Measurements, Inc. Page 2 September 2018
Parts List
Reference Description Part Number
UNIT Completely Assembled
Model 4906A 48-3687
UNIT Completely Assembled
Model 4906AB 48-3688
UNIT Completely Assembled
Model 4906P 48-3919
BOARD Assembled Host Board 5420-275
Y1 32.768 KHZ 01-5740
C1 1µf, 10V 04-5745
C2 4.7µf, 50V 04-5819
C3 10µf, 10V 04-5757
C4 0.01µf, 50V 04-5741
C5-C6 4.7µf, 50V 04-5819
C7 6.8µf, 50V 04-5756
C8 4.7µf, 50V 04-5819
C9 0.1µf, 25V 04-5744
C10 4.7µf, 50V 04-5819
C11 100µf, 10V 04-5820
C12 1µf, 10V 04-5745
C13 0.1µf, 25V 04-5744
C14 10µf, 10V 04-5757
C15 0.1µf, 25V 04-5744
C16 680pf, 100V 04-5801
Model 4906 Series
Applies to all 4906
Series:
Host Board, Drawing
420 x 275
CRYSTAL
CAPACITORS

Model4906SeriesTechnicalManual
Ludlum Measurements, Inc. Page 3 September 2018
Reference Description Part Number
C17 10µf, 25V 04-5728
C18-C19 0.01µf, 50V 04-5741
C20 10µf, 10V 04-5757
C21 0.1µf, 25V 04-5744
C22 1µf, 10V 04-5745
C23 0.1µf, 25V 04-5744
C24 1µf, 10V 04-5745
C25-C28 0.1µf, 25V 04-5744
C29-C32 0.001µf, 50V 04-5742
Q1-Q2 RK7002 05-5931
Q4-Q7 RK7002 05-5931
Q8 NDS356 05-5877
Q9-Q10 RK7002 05-5931
VR1 TPS71533DCKR 05-5936
VR2 TPS5420 05-5941
VR3 TPS61170 05-5940
U1-U2 SN74AHC138D 06-6480
U3 MSP430F2012 06-6729
U4 SM74JC151D 06-6750
U5 ADUC843 06-6703
U6 TPS3825-33 06-6558
U7 SN74AHC1G14 06-6556
U8 TPA2012D2 06-6766
CR1 MBRS130LTS 07-6423
CR2-CR3 MBR0520LT1 07-6422
CR4 MBRS340T 3G 07-6469
CR5 MBR0540LT1 07-6546
R1 10K, 1/10W, 1% 12-7083
R2 150K, 1/10W, 1% 12-7150
R3-R8 10K, 1/10W, 1% 12-7083
R9 1K, 1/10w, 1% 12-7084
TRANSISTORS
VOLTAGE
REGULATORS
INTEGRATED
CIRCUITS
DIODES
RESISTORS

Model4906SeriesTechnicalManual
Ludlum Measurements, Inc. Page 4 September 2018
Reference Description Part Number
R10 10K, 1/10W, 1% 12-7083
R11-R14 1K, 1/10w, 1% 12-7084
R15-R16 150K, 1/10W, 1% 12-7150
R17-19 1K, 1/10W, 1% 12-7084
R22 1K, 1/10W, 1% 12-7084
R23 10K, 1/4W, 1% 12-7839
R24-R25 10K, 1/10W, 1% 12-7083
R26 187K, 100mW, 1% 12-8016
R27 3.16K, 1/4W, 1% 12-7903
R28-R32 10K, 1/10W, 1% 12-7083
R33 499, 1/4W, 1% 12-7907
R34-R41 1K, 1/10W, 1% 12-7084
R42 499, 1/4W, 1% 12-7907
R43-50 1K, 1/10W, 1% 12-7084
J1-J8 LP RJ-11 6P 13-9321
J9 53014-0310, MOLEX 13-9038
J10 640456-3 MTA 100X3 13-8081
J11 53014-0310, MOLEX 13-9038
J12 SLM-104-01-S-S, JTAG 13-8986
J13-J14 640456-4, MTA 100X4 13-8088
J15 53014-0310, MOLEX 13-9038
J16 640456-6, MTA 100X6 13-8095
J17 640456-8, MTA 100X8 13-8039
J18 640456-4, MTA 100X4 13-8088
J19 640445-2, MTA 156X2 13-8098
J20-J26 53014-0310, MOLEX 13-9038
J27 640445-2, MTA 156X2 13-8098
J28-J29 640445-2, 640456-2, MTA 100X2 13-8073
J30-J32 640456-4, MTA 100X4 13-8088
P6 640445-2, 640456-2, MTA 100X2 13-8073
L1 CTCDRH125-330M 21-8926
L2 10µH 21-8925
L3-L6 220r-100Mhz 21-9986
F1-F9 300 mA FUSE 21-8924
SW1-SW2 SWITCH (KSC241G) 08-6827
CONNECTORS
INDUCTORS
MISCELLANEOUS

Model4906SeriesTechnicalManual
Ludlum Measurements, Inc. Page 5 September 2018
Reference Description Part Number
BOARD Assembled POWER/RELAY BOARD 5540-170
C1 4.7µf, 50V 04-5819
C2 10µf, 6.3V 04-5746
C3 0.01µf, 50V 04-5741
C4-C7 10µf, 6.3V 04-5746
C8 10µf, 25V 04-5824
C9 0.01µf, 50V 04-5741
C10 4.7µf, 50V 04-5819
C11 330µf, 10V 04-5832
C12 4.7µf, 50V 04-5819
C13 0.01µf, 50V 04-5741
C14 68µf, 25V 04-5828
C15 0.1µf, 25V 04-5744
Q1-Q6 RK7002AT116 05-5931
VR2 TPS5450 05-5947
U2 TLC3712ID 06-6290
CR1-CR5 MBR0520LT1G 07-6422
CR6 SSC54-E3/57T 07-6230
CR7 MBR0520LTG 07-6422
R1-R5 2.21K, 1/10W, 1% 12-7139
R6-R8 1M, 1/10W, 1% 12-7081
R9-R10 1K, 1/10W, 1% 12-7084
R11-R12 1M, 1/10W, 1% 12-7081
Power/Relay Board,
Drawing 540 x 170
CAPACITORS
TRANSISTORS
VOLTAGE
REGULATOR
INTEGRATED
CIRCUITS
DIODES
RESISTORS

Model4906SeriesTechnicalManual
Ludlum Measurements, Inc. Page 6 September 2018
Reference Description Part Number
R13 10K, 1/10W, 1% 12-7083
R14 2.21K, 1/10W, 1% 12-7139
R17 1M, 1/10W, 1% 12-7081
R23 10K, 1/4W, 1% 12-7839
R27 3.16K, 1/4W, 1% 12-7903
J1 RAPC712, +12VDC 13-8445
J2 640445-3, MTA 156X3 13-8125
J3-J4 640456-2, MTA 100X2 13-8073
J5 KPJX-4S-S 13-9071
J6-J7 640445-2, MTA 156X2 13-8098
J8 640456-2, MTA 100X2 13-8073
J9 640456-5, MTA 100X5 13-8057
J10 640445-2, MTA 156X2 13-8098
J11-J12 640456-2, MTA 100X2 13-8073
J13 640445-6, MTA 156X6 13-8071
J14-J15 640445-3, MTA 156X3 13-8125
J16 640456-2, MTA 100X2 13-8073
J17 640445-2, MTA 156X2 13-8098
J18 640456-6, MTA 100X6 13-8095
DS1-DS9 LED RED, LN1271RAL 07-6378
F1-F2 FUSE-3A, 60v 21-8890
L1 15µH, 5.65 A 21-8889
RY1-RY3 RELAY-G6B-2114P-USPC12 22-9254
RY4-RY5 RELAY-AZ850-5 21-8905
RY6 G6B-2241P 22-9255
SW1 PN11SHNA03QE 08-6900
BOARD Assembled Sensor Combiner Board 5420-540
J1-J4 53014-0310 HEADER3-MOLEX 13-9038
P1 640457-4, MTA 100X4 13-8089
MH1-MH2 FASTENTER-CONCORD-90-9451-044
21-9204
CONNECTORS
MISCELLANEOUS
Sensor Combiner,
Drawing 420 x 540
CONNECTORS
MISCELLANEOUS

Model4906SeriesTechnicalManual
Ludlum Measurements, Inc. Page 7 September 2018
Reference Description Part Number
BOARD Assembled Air Alpha Detector Board
5420-520
C1 10µf, 10V 04-5757
C2 68µf, 16V-T 04-5768
C3 0.1µf, 25V 04-5744
C4 10pf, 100V 04-5749
C5 10µf, 10V 04-5757
C6 0.1µf, 25V 04-5744
C7 1µf, 10V 04-5745
C8 10µf, 10V 04-5757
C9 0.1µf, 25V 04-5744
C10 1µf, 10V 04-5745
C11-C12 10pf, 100V 04-5749
C13 0.01µf, 3kV 04-5762
C14 0.001µf, 50V 04-5742
C15 1µf, 10V 04-5745
C16 100pf, 100V 04-5743
C17-C24 0.01µf, 500V 04-5873
C25 68µf, 16V-T 04-5768
C26 0.1µf, 25V 04-5744
C27-C28 0.01µf, 3kV 04-5762
C29-C36 0.01µf, 500V 04-5873
C37 1µf, 10V 04-5745
C38 10µf, 10V 04-5757
C39 1µf, 10V 04-5745
C40 0.01µf, 50V 04-5741
C41 4.7pf, 50V 04-5844
C42-C43 10µf, 10V 04-5757
C44 0.001µf, 25V 04-5951
C45 100pf, 3kV 04-5735
C46 0.001µf, 25V 04-5951
C47-C48 10µf, 10V 04-5757
C49 0.1µf, 25V 04-5744
C50 470pf, 100V 04-5767
C51 10pf, 100V 04-5749
C52 470pf, 100V 04-5767
C53 10pf, 100V 04-5749
C54 10µf, 10V 04-5757
C55 1µf, 10V 04-5745
For Model 4906A only:
Air Alpha Detector Board,
Drawing 420 x 520
CAPACITORS

Model4906SeriesTechnicalManual
Ludlum Measurements, Inc. Page 8 September 2018
Reference Description Part Number
C56 0.01µf, 50V 04-5741
C57 10µf, 10V 04-5757
C58 10pf, 100V 04-5749
C59 10µf, 10V 04-5757
C61-62 1µf, 10V 04-5745
C63 10µf, 10V 04-5757
C64 100pf, 100V 04-5743
C65 10µf, 10V 04-5757
C66 1µf, 10V 04-5745
C67 10µf, 10V 04-5757
C68 1µf, 10V 04-5745
C70-C71 1µf, 10V 04-5745
C72 100pf, 100V 04-5743
C73 10µf, 10V 04-5757
C74-C75 1µf, 10V 04-5745
C76 10pf, 100V 04-5749
VR1 TPS71550DCKR 05-5939
VR2-VR3 TPS71533DCKR 05-5936
U1 MSP430F5528IRGCT 06-6797
U2 SN74AHC14DR 06-6474
U3 TPS3925-33DBVT 06-6558
U4 OPA2347UA 06-6764
U5 LT1304CS8 06-6394
U6-U7 LM6172IMX 06-6737
U8 OPA140AIDBVT 06-6891
U11 LM828M5/NOPB 06-6518
U12 LMC7111BIM5X 06-6410
U13 CD74HC4538PWT 06-6686
U14 MAX986EUK+T 06-6601
U15 LMC7111BIM5X 06-6410
U16 MAX986EUK+T 06-6601
CR1 TVS-16V 07-6548
CR2 MBR0540LT1 07-6546
CR3 MB40520LT1G 07-6422
CR4-CR13 CMPD2005SLF 07-6468
VOLTAGE
REGULATOR
INTEGRATED
CIRCUITS
DIODES