Ludlum Measurements 195271 Manual Download Page 30

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MODEL 2000

Technical Manual

Section 8

Ludlum Measurements, Inc.

Page 8-4

November 2020

Reference

Description

Part Number

BOARD

Completely Assembled

Push-wheel Board

5167-333

C1-C3

0.001uF, 100V

04-5519

SW1-SW3

PUSHWHEEL

4167-504

1N4148

07-6272

P11

640456-8 MTA100

13-8039

BOARD

Assembled Display Board

5167-337

47uF, 16V, C

04-5550

C2-C5

0.001uF, 16V, C

04-5519

U1-U6

HDSP-E103

07-6342

MAX7219ENG

06-6443

CR1

LED DISPLAY

07-6377

R1-R4

22K, 1/4W, 5%

10-7070

47K, 1/3W, 5%

12-7758

SW1

SCHURTER, COUNTING

08-6783

P15

640456-6 MTA100

13-8095

SW1

MTF206P

08-6780

SW2-SW3

7101-SYZ-QE

08-6658

R3-R4

10K, 10-TURN POT

09-6761

RS232

13-8607

640456-4 MTA100

13-8087

UG706/U “C” CONN.

4478-011

640456-3 MTA100

13-8081

640442-3 MTA100

13-8135

Push-wheel Board,
Drawing 167 × 264

CAPACITORS

SWITCHES

DIODE

CONNECTOR

Display Board,
Drawing 167 × 276

CAPACITORS

LED Displays

DIODE

RESISTORS

SWITCH

CONNECTOR

Wiring Diagram,
Drawing 167 × 433

SWITCHES

POTENTIOMETERS

CONNECTORS

Summary of Contents for 195271

Page 1: ...LUDLUM MODEL 2000 SCALER November 2020 Serial Number 195271 and Succeeding Serial Numbers ...

Page 2: ...LUDLUM MODEL 2000 SCALER November 2020 Serial Number 195271 and Succeeding Serial Numbers ...

Page 3: ...on 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 ...

Page 4: ......

Page 5: ......

Page 6: ... and Functions 4 Front Panel 4 1 Back Panel 4 2 Internal Controls 4 2 Safety Considerations 5 Environmental Conditions for Normal Use 5 1 Cleaning Instructions and Precautions 5 1 Warning Markings and Symbols 5 2 Replacement of Main Fuse Back Panel 5 3 Data Output 6 Software 6 1 Prior to Installation of Software 6 1 Installation of Software 6 1 Button Functions 6 2 RS 232 Commands 6 3 Software Lic...

Page 7: ...Ludlum Measurements Inc November 2020 Model 2000 Scaler 8 1 ...

Page 8: ...echnicalManual Ludlum Measurements Inc November 2020 Main Board Drawing 167 395 8 1 Push wheel Board Drawing 167 264 8 4 Display Board Drawing 167 276 8 4 Wiring Diagram Drawing 167 433 8 4 Drawings and Diagrams 9 ...

Page 9: ...is displayed as a scaler count on an LED light emitting diode display The instrument may be powered by 95 250 VAC 50 60 Hz or by four D cell batteries The unit is complete with a voltage sensitive preamplifier linear amplifier electronic timer and detector high voltage power supply An RS 232 serial port is provided for attachment to a computer or optional printer Computer interface cable and softw...

Page 10: ...of the detector may be damaged imploded because of pressure differentials if the unit is shipped by air Protect the unit by putting it inside a sealed can or other protective enclosure Every returned instrument must be accompanied by an Instrument Return Form which can be downloaded from the Ludlum website at www ludlums com Find the form by clicking the Support tab and selecting Repair and Calibr...

Page 11: ...sitive ends facing out Turn the power switch to the BAT position Check the battery condition by pushing the HV BAT selector to BAT A downscale reading indicates battery reversal Adequate power is assured when the meter needle is above the BAT OK mark Operational Check Determine if the instrument is operational by pressing the COUNT button The count lamp should illuminate This action starts the sca...

Page 12: ...develop a graph relating count rate to system gain This relationship is commonly referred to as a plateau or instrument plateau curve System gain may be changed by adjusting detector high voltage HV Determining Instrument Plateau Set the time multiplier toggle switch to 0 1 and the MINUTES thumbwheel switch to 001 This gives a 0 1 min 6 second count Set the THR control to 1 0 for a scintillation d...

Page 13: ...C coaxial connector other connectors are available upon request Scaler a six digit light emitting diode LED readout Time Time base is normally in minutes from 0 999 with multiples of 0 1 and 1 Optional Instrument may be switched to a seconds time base by placing the internal dipswitch SW1 switch 2 to the ON position In this case the count time may be set from 0 999 seconds with a multiplier switch...

Page 14: ...MODEL2000 TechnicalManual Section3 Ludlum Measurements Inc Page 3 2 November 2020 Weight 3 1 kg 6 9 lb Finish beige powder coat with sub surface printed front panel ...

Page 15: ... momentary the switch springs back to the HV position when released THR a ten turn control used to set the basic pulse discrimination point of the scaler This control is linear in the range of 1 00 through 10 00 Detector Input Connection a series C coaxial connector other connectors are available upon request Power Switch a three position toggle switch OFF indicates that power is off LINE powers t...

Page 16: ...he dipswitch is set to PRNTR setting the push wheels to 000 sets the count time to infinity allowing for very long count times The bottom dipswitch RECYCLE OFF allows counting to recycle instead of requiring a manual count for each cycle Input Power a receptacle for 95 250 Vac 50 60 Hz line cord Battery compartment holds four D cell batteries Internal Controls Time base Dipswitch two pole dipswitc...

Page 17: ...z single phase 250W Maximum transient voltage of 1500 VAC Installation Category II Over voltage Category defined by IEC 1010 1 Pollution Degree 1 as defined by IEC 664 Cleaning Instructions and Precautions The Model 2000 may be cleaned externally with a damp cloth using only water as the wetting agent Do not immerse the instrument in any liquid Observe the following precautions when cleaning 1 Tur...

Page 18: ...AL per IEC 417 No 5019 designates the central grounding point for the safety ground This symbol is visible inside the chassis CAUTION per ISO 3864 No B 3 1 designates hazardous live voltage and risk of electric shock During normal use internal components are hazardous live This instrument must be isolated or disconnected from the hazardous live voltage before accessing the internal components This...

Page 19: ...e front panel The CE mark is used to identify this instrument as being acceptable for use within the European Union It is located on the rear panel The crossed out wheelie bin symbol notifies the consumer that the product is not to be mixed with unsorted municipal waste when discarding each material must be separated The symbol is placed near the AC receptacle See section 7 Recycling for further i...

Page 20: ...In the PC mode the count time can also be changed by the computer but only if the count time push wheels are set to 000 In the PRNTR mode the scaler count is output at the end of each count only The top switch RECYC OFF allows counting to recycle instead of requiring a manual push of the COUNT button for each cycle This mode is useful with the optional printer for taking many separate counts Softw...

Page 21: ...count time push wheels must be set to 000 for this to work Read Count Time Left Click on this button to read the remaining count time left during a timed count If a count is not in progress this returns 0 Start Logging Stop Logging Click on this button to start taking a series of timed counts The number of counts taken can be adjusted to continuous 10 counts 100 counts 200 counts or a user defined...

Page 22: ...ed with either a carriage return 13 linefeed 10 or just a linefeed 10 character The instrument uses the linefeed character to determine when a valid command has been received The commands are as follows SS Start Stop a scaler count SO Start Stop a scaler count When the count completes the scaler reading is automatically sent to the computer RS Read the scaler count RL Read the count time left RM R...

Page 23: ...MODEL2000 TechnicalManual Section6 Ludlum Measurements Inc Page 6 4 November 2020 ...

Page 24: ...MODEL2000 TechnicalManual Section6 Ludlum Measurements Inc Page 6 5 November 2020 ...

Page 25: ...MODEL2000 TechnicalManual Section6 Ludlum Measurements Inc Page 6 6 November 2020 ...

Page 26: ...t simply desires to inform its consumers of the range of recyclable materials present in its products so that the user will have flexibility in following all local and federal laws The following types of recyclable materials are present in Ludlum Measurements Inc electronics products and should be recycled separately The list is not all inclusive nor does it suggest that all materials are present ...

Page 27: ... 1uF 50V 04 5663 C5 0 001uF 100V 04 5659 C6 C7 0 01uF 500V 04 5696 C8 0 1uF 16V 04 5730 C9 68uF 10V 04 5654 C10 C11 0 02uF 3KV 04 5704 C12 C18 0 01uF 500V 04 5696 C19 10uF 25V 04 5728 C20 0 01uF 500V 04 5696 C22 0 001uF 100V 04 5659 C23 C26 0 1uF 50V 04 5663 C27 0 001uF 3KV 04 5727 C28 47pF 100V 04 5660 C32 100uF 20V 04 5583 C33 1uF 16V 04 5701 C34 68uF 10V 04 5654 C36 47pF 100V 04 5660 C39 C40 27...

Page 28: ...6297 U3 TLC372ID 06 6290 U4 LT1304CS8 5 06 6434 U7 CMXT3906 05 5890 U8 N87C51FC1 06 6303 U9 MAX232D 06 6382 U10 LT1304CS8 06 6394 U11 CMXT3904 05 5888 CR1 CR5 CMPD2004S 07 6402 CR6 CR10 CMSH1 40M 07 6411 CR11 CR17 CMPD2004S 07 6402 CR18 CMSH1 40M 07 6411 CR19 CMPD2004S 07 6402 SW1 DIP 2 POS 08 6712 SW2 A6ER 2101RA 08 6782 R26 5K HVM CAL 09 6918 R28 100K HV CAL 09 6930 R1 R2 500 MEG 3KV 2 12 7031 R...

Page 29: ... 100K 1 8W 1 12 7834 R40 200K 1 8W 1 12 7992 R41 33 2K 1 8W 1 12 7842 R42 22 1K 1 8W 1 12 7843 R43 8 25K 1 8W 1 12 7838 R45 R46 22 1K 1 8W 1 12 7843 R47 4 75K 1 8W 1 12 7858 R50 R51 4 75 OHM 1 8W 1 12 7980 R52 4 75K 1 8W 1 12 7858 R53 200 OHM 1 8W 1 12 7846 R54 R55 1K 1 8W 1 12 7832 L1 L2 22uH 21 9808 L3 220uH 21 9678 T1 4275 156 21 9925 P1 640456 4 MTA100 4 13 8088 P3 P4 640456 3 MTA100 3 13 8081...

Page 30: ...42 U7 MAX7219ENG 06 6443 CR1 LED DISPLAY 07 6377 R1 R4 22K 1 4W 5 10 7070 R5 47K 1 3W 5 12 7758 SW1 SCHURTER COUNTING 08 6783 P15 640456 6 MTA100 13 8095 SW1 MTF206P 08 6780 SW2 SW3 7101 SYZ QE 08 6658 R3 R4 10K 10 TURN POT 09 6761 P7 RS232 13 8607 J1 640456 4 MTA100 13 8087 J2 UG706 U C CONN 4478 011 J3 640456 3 MTA100 13 8081 J4 640442 3 MTA100 13 8135 Push wheel Board Drawing 167 264 CAPACITORS...

Page 31: ... J13 COAX PIGTAIL 8167 432 J15 640442 6 MTA100 13 8171 J19 AC RECEPTACLE W CORCOM FILTER 21 9830 M2200 2000 SOFTWARE 1370 049 PS1 POWER SUPPLY 22 9321 F1 3AG 1A FUSE 21 9704 METER ASSY 4167 302 M1 M2200 METER 15 8048 B1 B4 BATTERY 21 9313 2 EA BATTERY HOLDER 22 9400 MAIN HARNESS 8167 411 POWER HARNESS 8167 347 READOUT HARNESS 8167 374 4 EA BUMPER PAD BLK 21 9302 COVER SCALER 18 8987 HANDLE 21 9346...

Page 32: ...n Board Drawing 167 395 5 sheets Main Board Component Layout Drawing 167 396 Push wheel Board Drawing 167 264 Push wheel Board Component Layout Drawing 167 265 2 sheets Display Board Drawing 167 276 Display Board Component Layout Drawing 167 277 2 sheets Wiring Diagram Drawing 167 433 Section 9 ...

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