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Fluke Victoreen 943-227-15, Руководство оператора

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943-227-15 Digital Preamplifier 

Operator Manual 
 

3-3 

 

Содержание Victoreen 943-227-15

Страница 1: ...7 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 Corporation All rights reserved Printed in U S A All product names are trademarks of their respective companies ...

Страница 2: ...Fluke Biomedical 6045 Cochran Road Cleveland Ohio 44139 440 498 2564 www flukebiomedical com ...

Страница 3: ...3 1 3 1 Installation 3 1 3 2 Set Up 3 2 3 3 Operation 3 3 3 4 Configuration Functions 3 4 3 5 Set point Error Codes 3 5 3 6 Software Calculations 3 5 Section 4 Maintenance Calibration and Troubleshooting 4 1 4 1 Maintenance 4 1 4 2 Calibration 4 1 4 3 Troubleshooting 4 2 Appendix A Connector Designations A 1 A 1 Connector Designations A 1 Appendix B Applicable Drawings B 1 B 1 Applicable Drawings ...

Страница 4: ... Blank page ...

Страница 5: ...mplifier is a self contained electronics unit that processes the DC input signal from the detector digitizes the signal and transmits the digitized value to the readout via a modified RS232C compatible serial data communication port It contains two printed circuit boards mounted on the rear of the enclosure cover a terminal block for terminating the field cable from its associated controller and t...

Страница 6: ...emeter or Model 960 Digital Process Control System 943 227 15VL M1 Digital Preamplifier Transmission Distances up to 1 mile 2 0 inch conduit field cable interface 943 27 31 Beta Detector Current Mode Operation 942A 200C Digital Ratemeter or Model 960 Digital Process Control System 1 3 Specifications General specifications for the Model 943 227 15 Digital Preamplifier are listed below The 943 227 1...

Страница 7: ... 227 15 M1 or 943 227 15VL M1 8 0 in x10 0 in x 6 0 in 20 3 cm x 25 4 cm x 15 2 cm Weight Approximately 8 lbs 3 6 kg Housing Gasketed NEMA 4 Steel enclosure with hinged cover Operating Temperature 32 F to 122 F 0 C to 50 C Relative Humidity 0 to 99 non condensing Compatible Detectors Victoreen 943 27 Current Mode Beta scintillation detector only Detector Interface Detector cables enter thru Seal G...

Страница 8: ... up only SW3 4 OFF OFF No function is implemented in the 977 210 10M NOTE SW3 is a 4 position DIP switch on the 977 210 10M serial interface board Table 1 4 Jumper Positions for Preamplifier 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...

Страница 9: ...3 4 Not Used Not Used 10 Not Used Not Used Not Used J3 11 Detector Connections Detector Connections HV Detector MHV From Field coaxial cable Detector MHV From Field coaxial cable SIG Detector BNC Factory Terminated To 977 200 15M R41 Detector BNC Factory Terminated To 977 200 15M R41 Table 1 7 977 210 10M LEDs LED Indicates LED1 15 VDC is being supplied to the circuit board from the UDR when ON LE...

Страница 10: ...ing Inspection Upon receipt of the unit 1 Inspect the carton s and contents for damage If damage is evident file a claim with the carrier and notify the Fluke Biomedical Radiation Management Services Customer Service Department Fluke Biomedical Radiation Management Service 6045 Cochran Road Cleveland Ohio 44139 Phone 440 248 9300 Fax 440 542 3682 2 Remove the contents from the packing material 3 V...

Страница 11: ... within a fire resistant tear resistant weather tight enclosure in a well ventilated building or equivalent Storage of Fluke Biomedical instruments must comply with the following 1 Inspection and examination of items in storage must be in accordance with ANSI N45 2 2 1972 Section 6 4 1 2 Requirements for proper storage must be documented and written procedures or instructions must be established 3...

Страница 12: ... Blank Page ...

Страница 13: ...ctrometer circuit board assembly Schematic diagrams are located in Appendix B The 977 200 15M Electrometer circuit board contains the microprocessor the EPROM the integrating electrometer the programmable gain amplifier the analog to digital A D converter and the auto zero DAC circuit The 977 210 10M Communications Interface circuit board contains the dc voltage regulator the BDC DC converter the ...

Страница 14: ...2 Vdc MICROPROCESSOR CONTROL Resistor Resistor DETECTOR ASSEMBLY VL TX TX RX RX VL SIGNAL Figure 2 1 Typical Detector Electronics Block Diagram Table 2 1 Preamplifier Register Addresses Function Hex Address Electrometer Control 2000 ADC Convert CMD 4000 ADC Read Data 6000 ACIA T R Data A000 ACIA Status Register A001 ACIA Command Register A002 ACIA Control Register A003 Input SW3 A008 RAM not used ...

Страница 15: ...ffer to the electrometer C17 is an integrating capacitor while Z17 pin 15 and Q3 are the shorting elements of the integrator There is a hysteresis built into the range changing function of the electrometer The range change up occurs at the decade points whereas the range change down occurs at 80 of the decade points This hysteresis results in the display of only two significant digits when in the ...

Страница 16: ... Q7 Q14 and Q18 are the actual loop drivers Optical isolator U8 isolates the receive data from the Victoreen loop U2 and U3 are respectively the receiver and driver circuits for the RS232 port U14 decodes address block A000 to provide chip enables to the ACIA switch input register U6 Regulated power for the electronics 12 VDC is derived from three terminal regulators VR3 and VR4 The 5 Vdc logic po...

Страница 17: ...1 A B selects Victoreen loop communications RS232C Communications 943 227 15 Communication between the detector preamplifier and the UDR or 960 controller may be performed via RS232C serial asynchronous communications interface Jumper JP1 controls the communication communications method employed JP1 B C selects RS232C communications 2 5 Preamplifier Switch Jumper Settings Switch and jumper setting...

Страница 18: ...nction 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 Preamplifier Electrometer Board 977 200 15M Jumper Normal Setting Function Cal Position Function JMP1 A to B Normal Operation B to C PGA Offset Adjust Programmable Gain Amplifier requires a special test PROM and is a factory adjustment ...

Страница 19: ...tor signal and high voltage cables with connectors and Seal Grip fitting nuts are then inserted into the holes preamplifier enclosure The Seal Grip end fittings are then re installed securely against the wall of the enclosure The detector Signal BNC and High Voltage SHV cables are then terminated on the bulkhead connectors located on the enclosure inner panel On the 943 227 15 or 943 227 15VL the ...

Страница 20: ...X J3 3 4 REC J4 4 VL J3 4 5 Not Used Not Used RX J3 5 6 Not Used Not Used RX J3 6 7 15 VDC J3 7 Not Used Not Used 8 Ground J3 8 Ground J3 8 9 15 VDC J3 4 Not Used Not Used 10 Not Used Not Used Not Used J3 11 Detector Connections Detector Connections HV Detector MHV From Field coaxial cable Detector MHV From Field coaxial cable SIG Detector BNC Factory Terminated To 977 200 15M R41 Detector BNC Fac...

Страница 21: ...943 227 15 Digital Preamplifier Operator Manual 3 3 ...

Страница 22: ...larm must be located and corrected Power Failure If the power to the controller is lost the bar graph alarm indicators and the display are blanked turned off The HIGH WARN and FAIL relay coils will de energize If power to the preamplifier only is lost or if there is a break in the power cable operation of the microprocessor will stop The display on the controller will then cease to update If power...

Страница 23: ...rial Interface Board 977 210 10M Switch Settings Switch Normal Op Switch Function SW1 Open Microprocessor Reset switch momentary contact SW2 N A Not supplied SW3 1 ON OFF Selects 300 baud 1 ON Selects 4800 baud normal setting SW3 2 OFF OFF No function is implemented in the 977 210 10M SW3 3 OFF OFF Selects Rate Mode normal Selects Maintenance Mode for factory PGA and Auto Zero set up only SW3 4 OF...

Страница 24: ...ar the error code the source of the error must be corrected 3 6 Software Calculations The 943 227 17 continuously converts the current output of the detector to a digital value controls the gain of the internal amplifier performs periodic self checks communicates with the UDR or Model 960 controller and provides a radiation value to the UDR of Model 960 An asynchronous serial communication interfa...

Страница 25: ... Blank page ...

Страница 26: ...hat turns red when it should be replaced 4 2 Electronic Calibration Electronic Adjustments There are no user adjustments available on the 943 227 15 Digital Preamplifier The Programmable Gain Amplifier and Auto Zero are factory adjustments requiring the use of a factory test PROM and test fixture We strongly recommend the unit be returned to the factory for repair or adjustment Table 4 2 lists the...

Страница 27: ...h piece of equipment used in the system If a problem develops verify that the voltages at connection point inputs and outputs are present and that all wiring is secure Refer to Appendix B and C for drawings and parts lists If a PROM requires replacement specify the board revision level when ordering the part Troubleshooting Adjustments Troubleshooting includes a verification of the LED operation s...

Страница 28: ... 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 Used RX J3 6 7 15 VDC J3 7 Not Used Not Used 8 Ground J3 8 Ground J3 8 9 15 VDC J3 4 Not Used Not Used 10 Not Used Not Used Not Used J3 11 Detector Connections Detector Connections HV Detector MHV From Field coaxial cable Detector MHV From Field coaxial cable SIG Detector...

Страница 29: ... factory PGA and Auto Zero set up only SW3 4 OFF OFF No function is implemented in the 977 210 10M NOTE SW3 is a 4 position DIP switch on the 977 210 10M serial interface board Table A 3 Jumper Positions for Preamplifier 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 U...

Страница 30: ...5VL M1 Preamplifier Assembly Victoreen Loop w Conduit Hubs 977 210 10M Preamplifier HV Interface Printed Circuit Board Assembly 977 210 13M Preamplifier Printed Circuit Board Schematic 977 200 15M Preamplifier Electrometer Board Assembly 977 200 18M Preamplifier Schematic B 2 Related Manuals Not Supplied with this document SXXXXXX 1 Applicable 960 Series system Manual 942A 200C M1 Digital Ratemete...

Страница 31: ... Blank page ...

Страница 32: ... 15VL Part Number Description 943 227 15 Preamplifier Assembly RS232 943 227 15VL Preamplifier Assembly Victoreen Loop 943 227 15VL M1 Preamplifier Assembly Victoreen Loop w Conduit Hubs 977 210 10M Preamplifier HV Interface Printed Circuit Board Assembly 977 200 15M Preamplifier Electrometer Board Assembly ...

Страница 33: ... Blank page ...

Страница 34: ...nkable tubing provided by the user should be slid over the 0 675 in cable jacket The shrink tubing will be used to seal and protect the end of the cable after the termination process is completed To prepare the cable for termination a minimum of 7 inches of the cable outer jacket must be stripped off the cable This will allow for the stripping of approximately one inch from the various conductors ...

Страница 35: ...ay be separated from the bundle followed by the single conductors wires that are required for the specific application and the polyester filler cord Refer to the project specific detector loop drawing or the generic detector loop drawing provided in Appendix B for actual conductors to be used The ring lug connectors may now be applied to the single conductor cables and installed in accordance with...

Страница 36: ...400 Kings High Voltage Connector SHV 1705 1 Cabling SHV male crimp contact Procedure Trim Code pin Use Tool KTH 100 with 441 442 KTH 2062 SHV Alternate AMP Instruction High Voltage Connector Connector Sheet SHV male crimp contact 92 9105 A 408 2187 pin Use Tool 69710 1 with 51426 5 220028 2 Die or Integral Die Tool 220022 2 SHV 32 92 1 CP 1001 Kings Cabling High Voltage Connector SHV 1705 14 Proce...

Страница 37: ...943 227 15 Digital Preamplifier Operator Manual D 4 ...

Страница 38: ...Appendix Cable Termination Instructions D D 5 ...

Страница 39: ...943 227 15 Digital Preamplifier Operator Manual D 6 ...

Страница 40: ...Appendix Cable Termination Instructions D D 7 ...

Страница 41: ...943 227 15 Digital Preamplifier Operator Manual D 8 ...

Страница 42: ...cation Sheets Engineering Instructions P N Description 943 227 15VL M1 Modification consists of replacing the standard 8in 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 type entry fitting with a 2 0 in diameter sealed conduit fitting ...

Страница 43: ... Blank page ...

Страница 44: ... Blank page ...

Страница 45: ...Fluke Biomedical 6045 Cochran Road Cleveland Ohio 44139 440 498 2564 www flukebiomedical com ...

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