GE X-ray Product Detail
Model: DXD 350-II
Specifications:
- Environment
All ratings and duty cycles given apply at altitudes up to 8,000 feet (2438 m), average relative humidity not exceeding 95%, and maximum ambient temperature not exceeding 100 degrees Farenheit (38 degrees C).
- Power Requirements
- Power demand at maximum rating is 45 kVA at 95% power factor; maximum line current is 216 amperes at 208 V. Maximum ratings are obtainable with a line having 6% or less regulation.
- Absolute limits of voltages are: 190 to 276 volts for 50 or 60 Hz.
- Daily voltage variations must be within one of the following ranges:
- 190 to 223 VAC
- 212 to 245 VAC
- 227 to 260 VAC
- 243 to 276 VAC
- Instantaneous voltage fluctuations caused by loads external to the DXD 350-II should not exceed 2-1/2 percent and should not occur more than 10 times per hour.
- High Voltage Cable Length
Kilovoltage maximums and accuracy apply when high voltage cable lengths do not exceed 50 feet (15 m) and differences of length between tubes do not exceed 5 feet (1.5m). If it is necessary to exceed limits of cable length, the maximum KVP allowed may be less than 150. KVP reduction may be necessary to prevent exceeding 82 kVP from anode to ground or cathode to ground.
The maximum allowable kVP is determined by actual measurement after the installation is completed. If kVP must be reduced, no attempt should be made to operate the unit above that value.
Ratings versus line regulation
Line Regulation at rated output 150 KVp, 300 MA
- 0 - 6%
- 300 mA: 150
- 200 mA: 150
- 150 mA: 150
- 6.1 - 7.0%
- 300 mA: 140
- 200 mA: 150
- 150 mA: 150
- 7.1 - 7.5%
- 300 mA: 130
- 200 mA: 140
- 150 mA: 150
- 7.6 - 8.0%
- 300 mA: 130
- 200 mA: 140
- 150 mA: 140
- Ratings versus Duty Cycle Radiography
The duty cycle of the DXD 350-II generatore is given in KVP is 150 unless the unit must be derated.
Maximum Duty Cycles, Radiographic, 150 kVP
- 300 MA
- Maximum Cumulative Exposure Time: 6.75
- Required Rest Time (sec.): 54
- 200 MA
- Maximum Cumulative Exposure Time: 15
- Required Rest Time (sec.): 45
- 150 MA
- Maximum Cumulative Exposure Time: 27
- Required Rest Time (sec.): 52
- 100 MA
- Maximum Cumulative Exposure Time: 60
- Required Rest Time (sec.): 60
- 50 MA
- Maximum Cumulative Exposure Time: 240
- Required Rest Time (sec.): 80
- 25 MA
- Maximum Cumulative Exposure Time: 300
- Required Rest Time (sec.): 30
- Fluoroscopy
This x-ray unit is capable of operating at 130 kVP, 5 MA continously.
- Rapid Film
Rapid Sequence Rates
Maximum Exposure Time (sec.) and Maximum Exposures per Seconds
- 60 Hz (1/60), 50 Hz (.02) - 12 Exposures
- 60 Hz (1/30), 50 Hz (.03) - 8 Exposures
- 60 Hz (1/15), 50 Hz (.06) - 6 Exposures
- 60 Hz (1/20), 50 Hz (.15) - 4 Exposures
- 60 Hz (2/5), 50 Hz (.40) - 2 Exposures
- 60 Hz (1/20), 50 Hz (.05) - 6 Exposures
- 60 Hz (1/15), 50 Hz (.06) - 4 Exposures
- 60 Hz (1/8), 50 Hz (.12) - 2 Exposures
- Accuracy of Selected Values
- Radiography or Spot Film
- KVP, Radiography or Spot Film, 50 to 150 kVP, 25 to 300 mA: +/- 3% +1 KVP)
- MA, 25 to 300, 50 to 150 kVP: 5% of selected MA
- TIME, 60 Hz
- 1/120 to 1/8 sec.: 0 impulses
- 3/20 to 2/5 sec.: .0083 sec.
- 1/2 to 1 sec.: .017 sec.
- 1-1/4 to 5 sec.: , 2% of selected time
- TIME, 50 Hz.
- .01 to .4 sec.: .01 sec.
- .5 to .8 sec.: .02 sec.
- .9 to 5 sec.: 2% of selected time
-
- Fluoroscopy
- KVP, 65 to 130 kVP at 0-5MA: 5 KVP
- MA, 0 to 1 MA at 65 to 130 KVP: .02 MA
- MA, 1 to 5 MA at 65 to 130 KVP: 0.5 MA
- TIME, 0-5 min.: 30 seconds of selected MINUTES except +0 seconds at 5 minutes.
Panel Meter 51M1
- MA, 2 MA to 5 MA, 60 to 140 kVP: 10%
25 to 300 MA, 60 to 140 kVP: 5%
MAS, 5 to 50 MAS, max. time, 1/2 sec.: +/- 5%
Mammography
- KVP at 300 MA, 25-50 KVP: +/- 3KVP
MA at 25-50 KVP, 300 MA: +/- 5% (with mammography x-ray tube)
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