Polimaster PM1621M, Руководство по эксплуатации

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- Choose the mode of data transmission to PC using the MODE button;
- Press and release the LIGHT/SET button for PC link startup through IR channel;
- Perform readout of the dosimeter’s information following the program’s instructions.
2.4.7.3 Permission or prohibition of the following operating modes (parameters)
of the dosimeter:
- DER indication;
- Indication of DER coefficient of variation;
- Indication of DER averaging time;
- DE indication;
- Indication of DE accumulation time;
- Indication of time remaining for stay at the working place depending on the current
measured DER and DE values;
- Indication of the dosimeter s number;
- Audible alarm;
- Preset of the DE and DER threshold levels using the buttons;
- DE reset using the buttons.
2.4.7.4 Read-out of the following information from dosimeter to PC:
- Dosimeter’s parameters;
- DER history and DE accumulation (date, time, event, value);
- DE (DER) values at the moment of exceeding the preset thresholds as well
as time,
date and month of exceeding the preset thresholds;
- Values of the preset DE and DER thresholds;
- Official information.
2.4.7.5 Recording of the following information from PC to dosimeter:
- Dosimeter’s parameters;
- Values of DE and DER thresholds;
- Interval of DER history and DE accumulation recording;
- Current time and date for forming DE accumulation history;
- Official information.
2.4.8 Search mode
In search mode instrument can detect and locate the gamma radiation source. For this
purpose it is necessary to turn on the search mode.
How to turn on the search mode shown in Figure 2.1
When the first DER alarm threshold is exceeding (source detection), the source is
closer, the rate of audible, visual and vibration signals will be increased. When the maximum
frequency level is achieved, the device will produce continuous audible, vibration and visual
alarm.
To optimize the location of a gamma source, press shortly the SET button. The rate of
audible, visual and vibration alarms will decrease. When the SET button is pressed
secondary, the rate of audible, visual and vibration alarms will be set default values.
When the second DER alarm threshold is exceeding, the device will produce frequent
interrupted audible, visual and vibration alarms.
To locate the gamma radiation sources, the device should be placed in such manner
that the detector effective center (Figure 1A) should be directed to scanned object and be
kept on the 10 cm distance from the object. The velocity should be no more than 10 cm/min.
Number "1" and one line indicate the lower sound pressure level, "4" and four lines are
for higher sound pressure level.
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