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The radiometer can automatically determine the specified statistical error
depending on the radiation intensity (Appendix A). The user can also do that in the
submode of alarm threshold level programming. A blinking "%" symbol means that
the user determined the statistical error.
If the specified statistical error is determined automatically by the device, its
value is blinking on the LCD until it remains greater than the value of main relative
permissible error limit of photon-ionizing radiation DER measurement (Table 1.1).
If the specified statistical error is determined by the user, its value is blinking on the
LCD until it remains greater than the value of the specified statistical error.
While the statistical error value keeps exceeding 99 %, the LCD displays the
"пп%" symbols.
Press the THRESHOLD button in the mode of photon-ionizing radiation DER
measurement to view the value of the specified statistical error. The value of the
specified statistical error is displayed on the LCD (Figure 4) while the
THRESHOLD button is being pressed and held down (but not longer than 3 s). A
zero value display means that the radiometer determined the specified statistical
error automatically depending on the radiation intensity.
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