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Controle de qualidade em Radiodiagnóstico
MA0396 Dual Range mAs meter (Medidor mAs de dupla escala)
 
     Description: The Digital mAs Meter is an accurate, low-cost instrument that allows service personnel and biomedical engineers to check and adjust the mA settings of x-ray generators. This easy-to-use device is calibrated directly in mAs, thereby avoiding the calculations required with more complicated (and expensive) calibration equipment. The Dual-Range mAs Meter Gammex MA0396 is very sensitive – it can measure increments of 0.1 mAs. It has a low range of 0 to 199.9 mAs; and a high range of 0 to 1999 mAs.

This meter excels in calibrating the high-current, short-time station where a conventional mAs meter is precluded by tube ratings. This instrument can be used (after verification of generator timing accuracy) to set all mA stations and verify that photo-timing error does not exceed the limits of good practice.

To use, simply connect the cable to the x-ray generator and make the required exposure. The mAs reading appears instantaneously on the 4 digit LCD. A display indicator warns of the need for battery replacement. The small size and light weight make it convenient to carry around in a pocket or tool kit. Note: This is an invasive test which requires connection to the generator circuit.

Specifications:

  • Range:
    • 0 to 199.9 mAs (“+” overrange indicator above 160 mAs)
    • 0 to 1999 mAs (“+” overrange indicator above 1600 mAs)
  • Accuracy: ± 2% of reading, ±0.2 mAs
  • Drift: Zero
  • Display: 4 Digit LCD
  • Input: 25 to 1000 mA
  • Operating Temperature: 15 to 30° C (50 to 100° F)
  • Input Jack: Uses two banana jacks
  • Accessories Supplied: 24 inches of cable with banana plugs on one end and insulated alligator clips on the other
  • Controls: Power (ON/OFF), Range (high-low), Reset
  • Power: Single 9 V Alkaline Battery (included)
  • Size: 3.5x8.9x16.8 cm (1.4x3.5x6.6 in.)
  • Weight: 198 g (7 oz.)

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