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2.2.2.2 Before using the detecting unit that was on temporary closing-down, re-activate it and
check its operability.
2.2.2.3 Register the re-activation and putting the detecting unit in operation in the logbook.
2.2.3 Guidelines on switching on and testing the detecting unit with description of testing
procedure of the detecting unit in operation
2.2.3.1 Prepare the PC-based data display system for operation. Do the following:
- unpack the interface adapter with ВІСТ.468353.001 power unit (hereinafter the adapter) and
service cables;
- connect the adapter to the power unit;
- connect the adapter to the free serial port of the personal computer (hereinafter the PC) with
the help of the ВІСТ.685622.002 service cable.
Caution! Connection of the adapter to the RS-232 serial port of the PC can be performed
only if the adapter and the PC are switched off. Otherwise, the adapter and the PC serial port
can breakdown.
Note – The PC should have installed OS Windows and technological software. Technological software
should be installed as described in the Appendix A.
2.2.3.2 Prepare the detecting unit for operation. Do the following:
- unpack the detecting unit;
- connect the detecting unit to the adapter with the help of the ВІСТ.685621.002 service cable.
2.2.3.3 Switch the PC on, connect the power unit of the adapter to (220±22) V industrial
network. Start the bdbg_s.exe program and prepare it to gamma radiation DER measurement. Do the
following:
- select a serial port with the connected adapter in the Setup tab;
- proceed to the Work tab and press the Measurement button.
2.2.3.4 Measure gamma background DER indoors. To do this, wait until a probable value of
measured DER appears in the MEASURED RATE zone of the bdbg_s.exe program window. Value
probability (measurement result error remains within the equipment certificate) is indicated by DER
measurements in black color. Wait circa 20 s to get a probable value of background levels. If DER
measurement is stable, the total integration time is up to 30 s (if DER levels are near-background),
what gives an opportunity to reduce the statistical error of measurements. As DER increases, time
decreases to 1 s.
2.2.4 List of possible troubles and troubleshooting
2.2.4.1 The list of possible troubles and troubleshooting is presented in the Table 2.1.
Table 2.1 - List of possible troubles and troubleshooting
Trouble
1 The detecting unit does not
respond to protocol frames from
the data display system
Probable cause
1 The cable between the
detecting unit and the data
display system is damaged
9
Troubleshooting
1 Repair the cable
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