The Handle-R device is a mounting platform and headphone audio interface for the Radiagem meter. It allows the user to hold the Radiagem unit and its associated probe in one hand and perform a measurement, leaving the user's other hand free. This handle replaces the 1.5 m cable between the Radiagem unit and its probe, or the Radiagem audio module option (which provides enhanced audio features) and the CSP cable, as this functionality is integrated in the handle.
A Handle-R unit connects between the probe and the Radiagem CSP input. It attaches to the instrument and to its probe, creating a compact module. It is supplied with headphones which incorporate a volume control.
CSP contamination probes such as SA20, SB20 or SAB100 devices can be adapted on this handle, but it also connects to probes such as the SG-1R and SG-2R probes.
Several configurations are available. Effectively this handle has two rotation axis, so that the display can be read easily while making the measurement.
The audio module integrated in the handle improves the audible detection abilities of the Radiagem meter, allowing the user to listen to the measurement taken by a connected probe using headphones.
The handle provides a modulated sound according to the detected rate activity. This improves the user's experience by eliminating interference, thus simplifying a blind or otherwise difficult search. This is especially useful in crowded or noisy areas such as plants or during outdoor measurements, when the Radiagem device sounds may be obscured by local activity. It can also be used to prevent others from hearing your measurement signals, well suited for areas where quiet operation is required (e.g., hospitals or for special Homeland Security requirements).
Also, this audio module automatically deducts the background from the measurement. Once in a constant background, after a defined amount of time, the module will subtract the background from the measurement. Then only variations around the background will be reported in the headphones. The headphone sound reflects the radiation detected by the probe. For high sensitivity probes (e.g., SX-2R probe), it prevents headphone saturation. The pulse frequency increases proportionally to the dose rate measured. Over a defined level, when the pulsed signal increases, the pulse frequency progressively becomes a pure tone. This tone then increases relative to the activity, up to 3 kHz. When the alarm level is reached, this tone becomes a two-tone alarm.
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