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Dynalyzer – High Voltage Unit

OPERATION MANUAL

7

Figure 1:

Cabling Data

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Содержание Dynalyzer IV

Страница 1: ...RAPIDOSE Rapid Measurements with a super small footprint detector USER GUIDE DYNALYZER OPERATION MANUAL Dynalyzer IV High Voltage Unit...

Страница 2: ...Radcal Corporation 426 West Duarte Road Monrovia CA 91016 4591 USA USA 626 357 7921 Fax USA 626 357 8863 email sales radcal com www radcal com Radcal Part MNL ST 4672 4078320 Rev C Printed SEPT 2018...

Страница 3: ...rent Measurements with Dynalyzer III Digital Display mA and mAs 18 Exposure Duration Time 18 Dynalyzer Digital Display of kVp Measurements 18 Filament Current Measurement with the Dynalyzer Digital Di...

Страница 4: ...Dynalyzer High Voltage Unit OPERATION MANUAL 2 Warranty for the Model M 97311 Dynalyzer High Voltage Unit 33 Non Warranty Repairs 33 WEEE and RoHS 33...

Страница 5: ...il or vaporizing compound on all high voltage connectors to prevent flashover 6 Keep away from x ray beam This system is designed for remote reading so the equipment should not be placed near the x ra...

Страница 6: ...s and buffer amplifiers to adjust the levels of the isolated signals provide buffering against cable and instrument loading effects and provide frequency compensation In addition there is an oscillato...

Страница 7: ...voltmeter DVM Dynalyzer III Digital Display or Accu Dyn system Two 2 3 conductor 5 foot long high voltage x ray cables Federal Standard Connector Specifications Calibration Standard Factory calibrate...

Страница 8: ...Test Level Connectors Scope inputs 5 BNC type insulated Accu Dyn computer interface USB 2 0 mini B Digital display 1 Bendix PT02A 16 8P High Voltage Receptacles 3 conductor cables Receptacles conform...

Страница 9: ...Dynalyzer High Voltage Unit OPERATION MANUAL 7 Figure 1 Cabling Data...

Страница 10: ...Dynalyzer High Voltage Unit OPERATION MANUAL 8 Figure 2 Outline Data dimensions in inches 24 75 22 87 5 19 5 19 8 13 12 90 3 21 3 21 1 26 63 9 00 13 26 37...

Страница 11: ...reface Parts Necessary for Use Two 12 foot long RG 58U cables with BNC connectors at each end for oscilloscope connections Supplied Besides the High Voltage Unit the following parts are required Two h...

Страница 12: ...100 mA The High Voltage Unit may be located at the transformer when it is physically impossible to locate it close to the x ray tube bearing in mind the effects of cable charging Series Connection Ano...

Страница 13: ...generators having auxiliary high voltage receptacles capable of simultaneous activation This setup shown in Figure 7 enables the measurement of all parameters except filament current and eliminates t...

Страница 14: ...CATH TRANS ANODE ANODE TRANS TUBE VOLTAGE HIGH UNIT ANODE TRANSFORMER CATHODE CABLES VOLTAGE 5 FT HIGH EXISTING CABLES Figure 4 Series Connection Anode Only ANODE X RAY TUBE CATH TUBE CATH CATH TRANS...

Страница 15: ...onnection GE DMR Only X RAY TUBE CATH TUBE CATH CATH TRANS ANODE ANODE TRANS TUBE VOLTAGE HIGH UNIT TRANSFORMER CATHODE CA 4 4 PIN HV CABLES X RAY TUBE PLUG CATH TRANS DUMMY ANODE TUBE ANODE TRANSFORM...

Страница 16: ...Dynalyzer High Voltage Unit OPERATION MANUAL 14 Figure 7 Connections...

Страница 17: ...use gross measurement errors e g 20 to 30 kV In order to guard against this possibility the user must be careful to angle the tube away from the HVU or close the collimator shutters Readout Oscillosco...

Страница 18: ...des a unique means for viewing and measuring the current waveform in an x ray generator Interpretation may require some analysis on the part of the user In general it will be found that three pulse co...

Страница 19: ...milliampere At low current levels below 5 mA in systems with sufficient cable or external capacitor banks the voltage applied to the x ray tube may appear to be purely direct current The current wavef...

Страница 20: ...vidual terminals with respect to ground The Digital Display is triggered by dialing in the fraction of the peak or preset absolute amount of kVp or mA that is considered the beginning of the exposure...

Страница 21: ...Voltage Unit readout terminal The waveform of the filament current will to some extent influence the accuracy of the reading of the peak reading as ac rectifier circuit used in most DVMs Fluoro gain...

Страница 22: ...significant in this particular exposure because the dominant radiation is of the lower kVp value The peak value must not however exceed the rating of the tube of generator as it does contribute to th...

Страница 23: ...causes These transient conditions may produce voltages which are considerably in excess of the kVp setting and may damage the x ray tube high voltage cables or high voltage transformer Transient volta...

Страница 24: ...twelve and therefore the waveform looks identical to that of a single phase generator Evaluating Fluoroscopic Current Measurements The FLUORO mode should be selected for this test Circuit analysis wo...

Страница 25: ...est approach would be to take 10 values of the current equally spaced in time in the period of one cycle and add them together and divide by ten The peak current is different in each pulse while the f...

Страница 26: ...nit OPERATION MANUAL 24 Figure 13 Typical Single Phase Waveform Figure 14 Current Waveform Analysis by Triangulation I MAX 3 2 1 1 2 3 I 3 3 2 1 2 3 I I MAX 1 2 2 1 1 AV I I MAX 3 2 1 1 2 1 1 2 2 t t...

Страница 27: ...ray generators use saturable reactors or other non linear control means to control the current in the x ray tube filament This results in distortion of the input sine wave into a waveform approximatin...

Страница 28: ...e controlled waveforms often found in SCR circuitry will be totally misleading as no change in voltage will be measured until the SCR is phased back to 90 or less If desired a graphical integration te...

Страница 29: ...NUAL 27 Fuse Replacement 1 On the rear of the unit next to the AC cord connector pull out the fuse drawer Replace the fuse if necessary with 5mm x 20mm 500mA slo blo fuse LITTELFUSE 0219 500 or equiva...

Страница 30: ...eak due to other causes should be identified Recharging may be accomplished with the contents of a lecture bottle of Sulfur Hexafluoride C P gas available from Matheson Gas Products Company The conten...

Страница 31: ...tcut is installed on your desktop that opens a folder containing Accu Gold templates These templates are installed in the Program Files folder under Radcal AccuGoldExcel Installation NOTE Install Accu...

Страница 32: ...ate provides readouts of kVp Average kV Practical Peak Voltage PPV time mA and mAs Each measurement is placed in a list under Recorded Measurements The waveforms displayed are RIAvgkV and mA The RI re...

Страница 33: ...Shift C C lear Clears the digitizer s USB connection and causes recognition of sensor or parameter changes Ctrl Shift U U pdate Checks for software updates Troubleshooting Common Error Messages Canno...

Страница 34: ...ter the pulse is detected the software post processes the data and displays the results based on this region of interest Addendum Relevant Zero When measuring the output on high voltage machines it ca...

Страница 35: ...consent during the period of this warranty Radcal reserves the right to perform warranty services at its own factory Non Warranty Repairs The calibration of this instrument was correct within specifi...

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