ECOTEST PRD GUARDER DKG-24 Operating Manual page 27

This window displays DER, pulse count rate and gamma
radiation intensity histogram, displaying pulses every 100 ms for the
last 25.6 s. Resolution of gamma pulse count rate display is 1 cps. A
unit of measurement is specified next to each value, according to
which the data is currently displayed. A figure in the upper left corner
of the histogram indicates its current unit of measurement (Figure 6).
To enable and disable the sounding of the pulse count rate,
hold down the ENTER button for at least 2 seconds. An
indicates that the pulse count rate sounding mode is on, and
indicates that it is off. A short press of the ENTER button when the
sounding of the pulse count rate is on recalibrates the sounding
frequency relative to the current pulse count rate, which makes it
easier to distinguish sound signals when the device approaches a
source of radiation and a switch of sounding from the mode of
continuous signal to a discrete periodic one.
2.3.3.5 Search diagram display mode
To select the operation of the device in the search diagram
mode, proceed to the device settings, select the "Additional
settings" item and set the "Search screen" parameter to the
value "Diag", and then save the settings. Next, you can switch
to the search diagram display mode by pressing the "<", ">"
buttons (depending on the current operating mode of the device).
When entering this mode for the first time, you need to calibrate
the gyroscope. This process consists of two parts:
• Holding the device in a static position, parallel to the
ground surface (Figure 7).
Figure 7 – Gyroscope calibration: holding in a static position
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