Fluke 943-27 manual

Victoreen ® Digital Preamplifier, Model 943-227-15,for use with Model 943-27 Current Mode Beta Detector Operator Manual February 2008 Manual No. 943-227-15-1, Rev. 3 © 2007, 2008 Fluke Corporat i on, All rights reserved . Printed in U .S.A. All product names are trademar ks of their respective companies[...]

Fluke Biomedical 6045 Cochran Road Cleveland, Ohio 44139 440.498.2564 www.flukebiomedical.com[...]

Table of Contents Section 1: General Information ........................................................................................................... .. 1-1 1.1 General Description ........................................................................................................ ....... 1-1 1.2 Application .............................[...]

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General Information General Description 1 1- 1 Section 1 General Information 1.1 General Description The Victoreen ® Model 94 3-227-15 Digital Preamplif ier, is designed to operate with the Model 943-27, Current Mode Beta Sci ntillation detector and the Mode l 942A-200C Series Digital Ratemeter (UDR) or the Model 960 Series Digital Process Control[...]

943-227-15 Digital Preamplifier Operator Manual 1- 2 Table 1-1. 943-227-15 Variations a nd Compatible Equipment Preamplifier Variations Application Detector Readout 943-227-15 Digital Preamplifier Transmission Distances Less than 50 feet 943-27-31 Beta Detector, Current Mode Operation 942A-200C Digital Ratemeter or Model 960 Digital Process Control[...]

General Information Application 1 1-3 Table 1-2. General Specifications for the 943-227-15 Digital Preamplifier Feature: Specification: Preamplifier Power + 15 v @ 20 mA Preamplifier Input DC current, 1E-12 to 1E-3 amperes from 943-27 Current Mode Beta Scintillation detector Preamplifier Output 943-227-15, RS232C; 943-227-15V L, Modified RS232C ser[...]

943-227-15 Digital Preamplifier Operator Manual 1-4 Table 1-3. Preamplifier Serial Interface Board 977 -210 -10M Switch Settings Switch Normal Op. Switch Function SW1 Open Microprocessor Reset switch, momentary contac t SW2 N/A Not supplied SW3-1 ON OFF Selects 300 baud • 1/ON Selects 4800 baud (normal setti ng ) SW3-2 OFF OFF • (No function is[...]

General Information Specifications 1 1- 5 Table 1-6. Field Electrical Con nections, 943 -227-15 and 943-227-15VL 943-227-15 943-27-15VL TB1- Description Connects To 977-210-10M Description Connects To 977-210-10M 1 XMIT J4-1 + VL, 15 VDC J3-1 2 DTR J4-2 + TX J3-2 3 GND J4-3 - TX J3-3 4 REC J4-4 - VL J3-4 5 Not Used Not Used + RX J3-5 6 Not Used Not[...]

943-227-15 Digital Preamplifier Operator Manual 1-6 1.4 Auxiliary Equipment Model Description None 1.5 Recommended Spare Parts Table 1-9. Recommended Spare Parts List for the Model 943-227-15 Digital Preamplifier Part Number Description Used On 977-200-15M Electrometer Circuit Board - 977-210-10M Serial Interface Circuit Board - 92-7072 Fuse, F1, F[...]

General Information Spare Parts/Receivi ng Inspection 1 1- 7 1.7 Storage Storage of Fluke Biomedi cal instruments must comply with Level B storage requirement s as outlined in ANSI N45.2.2 (1972) Section 6.1.2 (.2 ). The storage area shall comply with ANSI N45.2.2 (1972) Sectio n 6.2 Storage Area, Paragraphs 6.2.1 th rough 6.2.5. Housekeeping shall[...]

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Theory of Operation Functional Description 2 2-1 Section 2 Theory of Operation 2.1 Functional Description The Model 943-227-15 Digital Preamplifi er is an eight- decade, linear reading radiation. The preamplifier is sensitive to moisture and is mounted in a NEMA 4 sealed enclo s ure. The p reamplifier box contains a desiccant package to remove mois[...]

943-227-15 Digital Preamplifier Operator Manual 2-2 INTEGRATING ELECTROMETER PGA ALARM OUTPUT DAC EPROM ANALOG SWITCH ADC ACIA HIGH VOLTAGE POWER SUPPLY RS232 VICO LOOP MICROPROCESSOR CONTROL SIGNAL HIGH VOLTAGE 0 - 10 Vdc 0/-12 Vdc MICROPROCESSOR CONTROL Resistor Resistor DETECTOR ASSEMBLY +VL +TX -TX +RX -RX -VL SIGNAL Figure 2-1. Typical Detecto[...]

Theory of Operation Main Circuit Boards 2 2-3 Table 2-2. Electrometer Control Bit Assignments Bit Position 7 6 5 4 3 2 1 0 Description X X X X X 0 0 0 Gain = 1 X X X X X 0 0 1 Gain = 2 X X X X X 0 1 0 Gain = 4 X X X X X 0 1 1 Gain = 8 X X X X X 1 0 0 Gain = 16 X X X X X 1 0 1 Gain = 32 X X X X X 1 1 0 Gain = 64 X X X X X 1 1 1 Gain = 128 X X X X 0 [...]

943-227-15 Digital Preamplifier Operator Manual 2-4 The following Test are prov ided on the 977-200-15M board: Table 2-4. 977-200-15M Test Points Test Point Function TP1 Electrometer Output TP2 Analog +5 VDC supply TP3 - 5 VDC supply TP4 Digital +5 VDC supply (From 977-210-10M) TP5 High Voltage Sense (Not Used) TP6 + 12 VDC supply (From 977-210 -10[...]

Theory of Operation Communications 2 2-5 Victoreen Communications Loop – 943-227-15VL Communication between t he detector preamplifier and the UDR or 960 controll er may be performed via Victoreen loop, a serial asynchronous communications interface. The communi cation utilizes Victoreen protocol and is intended for use in electrically hostile en[...]

943-227-15 Digital Preamplifier Operator Manual 2-6 Table 2-8. Jumper Positions for Pream plifier Serial Interface Board 977-210-10M Jumper Normal Setting Function Alternate Setting Function JMP1 A to B Enables Victoreen Loop (normal) B to C Enables RS232C JMP2 N/A Deleted, Not Used N/A Deleted, Not Used Table 2-9. Jumper Positions for Prea m plifi[...]

Operation Installation 3 3-1 Section 3 Operation 3.1 Installation Installation consists of mounting the equi pment, making the required electrical co nnections, and entering the desired set points. CAUTION Remove all power prior to installing the Preamplifier. Preamplifier Mounting The preamplifier is a self-contained unit that is desi gned for mou[...]

943-227-15 Digital Preamplifier Operator Manual 3-2 NOTE The electrometer circuitry in the preamplifier is highl y sensitive to moisture and physical damage. Use extreme care when the preamplifier case is opened as the high impedance electrometer circuitry is easily damaged. Do not leave the preamplifier enclosure in the open position for any exten[...]

943-227-15 Digital Preamplifier Operator Manual 3-3[...]

Operation Configuration 3 3-4 3.3 Operation Operation of the 943-227-15 Di gital Preamplifier is automatic and is controlled by the Mod el 942A-200C Digital Ratemeter or Model 9 60 Digital Process Radi ation monitoring system . Once the power to the controlling device is turned on, the prea mplifier begins operation. No operator intera ction is req[...]

943-227-15 Digital Preamplifier Operator Manual 3-5 For UDR systems, the address of the 942-200-80 Co mmuni cations board in the UDR must be set 404 0 and the baud rate must be set to 4800 baud. If the wi ring of the Communication s option board to the P2 connector is suspe cted, a loop test can be performed as described in "Loop Test Mode&quo[...]

Operation Configuration 3 3-6 3.5 Set Point Error Codes Failure of the 943-227-17 pre amplifier may result in the following error code s being displayed on th e controlling device: Code E0009 is normall y used to identify a Loop co mmunication failure. The error cod e may be due to a baud rate mismatch between the preamplifier and the UDR or 960 sy[...]

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Maintenance, Calibration and Troubleshooting Maintenance 4 4-1 Section 4 Maintenance, Calibration and Troubleshooting 4.1 Maintenance The 943-227-15 Digital P reamplifier is designed to operate for extend ed periods of time with no scheduled maintenance requi red. Operation may be verifie d by periodically actuating the check source (provided with [...]

943-227-15 Digital Preamplifier Operator Manual 4-2 4.3 Troubleshooting WARNING Extreme care must be used when troubleshooting a system that has power applied. All standard troubleshooting precautions apply. WARNING Once a problem has been located, remove all power before continuing with the repair. CAUTION Personnel performing the troubleshooting/[...]

Appendix Connector Designations A A-1 Appendix A Connector Designations A.1 CONNECTOR DESIGNATIONS, 943-227-15 and 943-227-15VL Table A-1. Field Electrical Con nections, 943-2 27-15 and 943-227-15VL 943-227-15 943-27-15VL TB1- Description Connects To 977-210-10M Description Connects To 977-210-10M 1 XMIT J4-1 + VL, 15 VDC J3-1 2 DTR J4-2 + TX J3-2 [...]

943-227-15 Digital Preamplifier Operator Manual A-2 A.2 SWITCH AND JUMPER POSITIONS, 943-227-15 and 943-227-15VL Table A-2. Preamplifier Serial Interfa ce Boa rd 97 7 -210-10M Switch Settings Switch Normal Op. Switch Function SW1 Open Microprocessor Reset switch, momentary contac t SW2 N/A Not supplied SW3-1 ON OFF Selects 300 baud • 1 /ON Select[...]

Appendix Applicable Drawings B B-1 Appendix B Applicable Drawings B.1 Applicable Drawings 943-227-15 and 943-227-15VL Drawing No . Description 943-227-15 Preamplifier Assembly, RS232 943-227-15VL Preamplifier Assembly, Victoreen Lo op 943-227-15VL-M1 Preamplifie r Assembly , Victoreen Loop, w/Con duit Hubs 977-210-10M Preamplifier HV/Interfac e Pri[...]

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Appendix Bill of Materials C C-1 Appendix C Bill of Materials C.1 Bill of Materials- 943-227-15 and 943-227-15VL Part Number Description 943-227-15 Preamplifier Assembly, RS232 943-227-15VL Preamplifier Assembly, Victoreen Lo op 943-227-15VL-M1 Preamplifie r Assembly , Victoreen Loop, w/Con duit Hubs 977-210-10M Preamplifier HV/Interfac e Printed C[...]

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Appendix Cable Termination Instructi ons D D-1 Appendix D Cable Termination Instructions D.1 Cable Termination Instructions The procedures and in structions provided in Ap pendix D are provided fo r reference in termin ating the field cables to the Digital Preamplifier. A mating SHV co nnector i s provided with the preamplif ier. Ring lug terminals[...]

943-227-15 Digital Preamplifier Operator Manual D-2 Detector Field Cable Preparati on, 943-227-15VL-M1, Conduit Hub: Prior to terminating the cable, the field con duit must be run to the junction box, and the field cable pull ed into the junction box. To prepare the cable f or termination, a minimum of 7 in ches of the cable outer ja cket must b e [...]

Appendix Cable Termination Instructi ons D D-3 HV CONNECTOR NOTES (HV) The mating HV connector, P/N 30-92-1 (Kings 1 705-1 4), may now be terminated per the applicable Kings data sheet attached LOCATION P/N DOCUMENT DESCRIPTION SHV 92-9105-A CP-400, Kings High Voltage Connector, SHV (1705-1) Cabling SHV, male crimp contact Procedure, Trim Code pin [...]

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Appendix Cable Termination Instructi ons D D-5[...]

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Appendix Cable Termination Instructi ons D D-7[...]

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Appendix Modifications E E-1 Appendix E Modification Sheets, Engineering Instructions E.1 Modification Sheets, Engineering Instructions P / N D e s c r i p t i o n 943-227-15VL-M1 Modification consists of replacing the standard 8 in H x 10in W x 4in D Enclosure with a 8in H x 10in W x 6in D Enclosure and replacing the field cable “Seal Grip” ty[...]

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Fluke Biomedical 6045 Cochran Road Cleveland, Ohio 44139 440.498.2564 www.flukebiomedical.com[...]