Radcal Dynalyzer III Скачать руководство пользователя страница 7 | Manualshive

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Dynalyzer – Digital Display/Printer

OPERATION MANUAL

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Figure 1:

Typical Dynalyzer III System

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Содержание Dynalyzer III

Страница 1: ...RAPIDOSE Rapid Measurements with a super small footprint detector USER GUIDE DYNALYZER OPERATION MANUAL Dynalyzer III Digital Display Printer...

Страница 2: ......

Страница 3: ...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 specified limits when the instrume...

Страница 4: ...e Operation 11 Trigger Level 12 kV Measurement Delay 15 Fluoroscopic Current Measurements 0 20 mA 16 Window Delay Mode Operation 16 Exposure Number Window and Recall Button 18 Clear Reading 18 Reset 1...

Страница 5: ...hode mA and mAs Exposure time Standby and boosted filament current Coefficient of variation calculations for kV mA and time for up to 10 exposures Fixed window sampling period with an adjustable delay...

Страница 6: ...easurement to another would typically be less than 25 of the worst case values stated Interface Requirements Compatible with both Dynalyzer II and III High Voltage Unit Measured Quantities See note 1...

Страница 7: ...Dynalyzer Digital Display Printer OPERATION MANUAL 4 Figure 1 Typical Dynalyzer III System...

Страница 8: ...T EXT TRIG EXT TRIG WARNING DISCONNECT FROM MAIN POWER BEFORE SERVICING Input Power Connector Allow rapid fuse charging and line voltage changeover 120 240 VAC 5V regulation pass transistor High Volta...

Страница 9: ...curacy of a particular reading must therefore be determined by calculating the possible error in the two measured quantities and combining these errors Note that a large final error can occur when eit...

Страница 10: ...line Data Weight approximate With printer 22 lbs 10 kg Without printer 18 5 lbs 8 4 kg Notes 1 Due to cable capacitance mA and A C kV readings taken from the rear panel BNC connectors may be degraded...

Страница 11: ...xposures and outputs the result to the corresponding display The FIL AMPS LINE N L and LINE functions are not applicable in this mode TEST In this mode the system performs a test of its own analog and...

Страница 12: ...ld be the same for AC branch circuit and preferably the same receptacle Be sure the power source is equipped with an approved earth ground 3 Place the POWER switch in ON position or depress RESET if a...

Страница 13: ...is selected at the High Voltage Unit 8 Reset the PROCEDURE switch on the Digital Display to NORMAL The unit should again display 0 s CAUTION As 5 foot long high voltage cables are normally used to co...

Страница 14: ...ll function with the trigger selector in any position It is recommended that the selector be in EXT if no external trigger source is being used This pushbutton when depressed causes the display to rea...

Страница 15: ...Self Test procedure If the button is inadvertently depressed the radiation probe should be re zeroed Refer back to Initial Set up and Self Test Trigger Level Proper setting of the trigger level is re...

Страница 16: ...mber of cycles may represent this time unless of course the exposure termination is not obtained at zero crossing This effect will be most noticeable in short exposures such as 1 120 and 1 60 second F...

Страница 17: ...y turning off the negative bias present on the grid of the x ray tube The exposure time is a function of this negative bias pulse width The anode current discharges the capacitors until the voltage dr...

Страница 18: ...be set to zero Many three phase generators may exhibit an overshoot in voltage during the first pulse due to phasing and or magnetic saturation effects Although the additional radiation produced by t...

Страница 19: ...re for radiographic and 20 mV mA for fluoroscopic measurements are controlled by a switch on the High Voltage Unit If AC noise is introduced on the signal line the temperature sensitive drift of the c...

Страница 20: ...a scope is not available make a series of exposures and record kV mA as a function of delay time The user should be cautioned that the mAs displayed is not the mAs of the entire exposure but only the...

Страница 21: ...ear out the exposure data shown The EXPOSURE RECALL button must be depressed to decrement the exposure count so that the next exposure taken replaces the bad exposure that was cleared If this is not d...

Страница 22: ...This clears out that value and resets the exposure counter by one The test may then be resumed Exposure recall allows viewing the data stored for each of the ten exposures This allows the possible sou...

Страница 23: ...itch to read standby filament current 3 Set KV DELAY to 0 All parameters will be displayed at the end of the exposure 4 Set the MA MAS switch to MAS to read that value With the Display set up as descr...

Страница 24: ...ynalyzer contact resistance is not present the measured mA may be higher than in the previous procedure The master mA adjustment in the generator will compensate for the cable resistance In generators...

Страница 25: ...Dynalyzer Digital Display Printer OPERATION MANUAL 22 Figure 14 Grid Pulsed System Measurements EXPOSURE TIME PEAK DETECTOR ON kVp READ kV mA...

Страница 26: ...r roll 2 Press down on the right side facing the front of the Dynalyzer of the ribbon marked PUSH This will raise the left side 3 Remove the old ribbon 4 Ensure that the new ribbon is tightly stretche...

Страница 27: ...eiving equipment should be set to the same parameters The Dynalyzer will output data on the RS232 port with the exact same format as the printer data Only a CARRIAGE RETURN ODh is sent at the end of e...

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