Fluke Biomedical 35080M - Manual (Page 7)

General Information
Introduction
1
1-1
Section 1
General Information
1.1 Introduction
The Model 35080M kVp Divider is an alternative to high-voltage divider tanks. It provides a safe, non-
invasive, fast measurement of kVp without endangering personnel and/or equipment. Its use is primarily
intended for X-ray machine service and calibration.
High-speed precision logarithmic circuitry allows for wide variations in mA and distance without a sacrifice
of accuracy or response speed. The Model 35080M kVp Divider provides an analog output voltage
proportional to the instantaneous voltage applied to the X-ray tube. When the kVp divider is connected to
a storage oscilloscope, the kV waveform may be viewed directly. If a digital display of the kVp value is
desired, then the Model 35080M kVp Divider may be connected to the Model 35050AT Dosimeter/kVp
Readout.
One Wide Range Filter Pack (37617) allows high-accuracy measurements from 50 to 150kV. The kVp
divider is placed on the X-ray table with the filter pack in place. A storage oscilloscope is connected to
the kVp divider. The X-ray beam is collimated to the area of the filter pack. An exposure is made and the
kV waveform is displayed on the storage oscilloscope. At no time are the high-voltage supply cables
disturbed.
The Model 35080M kVp Divider is highly portable -- a contrast to bulky, heavy high-voltage divider tanks.
The instrument is accurate to ± 2%, exclusive of linearity and filtration effects.
The user should note, however, that as with an invasive divider, the accuracy of readings will depend on
the accuracy of the oscilloscope or readout device used in the measurements.
1.2 Manual Addenda
Any improvements or changes concerning the instrument or manual will be explained in an addenda
included with the manual. Be sure to note these changes and incorporate them into the manual.
1.3 Safety Symbol and Terms
The following symbols and terms are found on the instrument or used in this manual.
Indicates that the user should refer to the operating instructions located in the manual.
Explains dangers that might result in personal injury or death. Always read the
associated information very carefully before performing the indicated procedure.
Explains hazards that could damage the instrument. Such damage may
invalidate the warranty.
WARNING
CAUTION