2.3.4 Methods of radiation monitoring and estimation procedures of controlled values
Before starting the radiation monitoring of currency the natural background radiation
in the workplace is measured. Estimation of natural radiation background in the workplace
shall be carried out not less than in 5 points located at a distance of from 0, 5 to 1,0 m
from the money taking point and not closer than 0,2 m from each other. Measuring points
should be chosen in the workplace without radioactive contamination. During the
estimation the product should be at a height of 1 m above the ground.
The total estimation period of the radiation dose rate and flux density of the
background is 20 - 25 minutes, but if you want to get the precise results, it is necessary to
carry out a survey in its entirety.
For the inspection convenience the product has the procedure «EVALUATE» which
facilitates the inspection significantly.
2.3.5 Switching off the product.
To switch the product off press the
C
(art.1.3) and hold it until the messages
disappear. Close the counter window with the shutter on the backside of the product.
2.4 Possible malfunctions and their elimination
2.5 Actions under extreme conditions
WARNING!
IF THE PRODUCT HAS FIXED DOSE MORE THAN 1.20 µS
V
/
H
YOU
SHOULD LEAVE THIS AREA IMMEDIATELLY and CONTACT THE
STATE SANITARY- EPIDEMIOLOGICAL SERVICE.
3. Maintenance
Maintenance of the product provides for:
1) Removing dust from the outer surface of the product;
2) When there is an icon «
» on the display, replace the battery;
3) In case of a long pause of detector usage (more than one month) power supply
elements must be removed from the battery compartment. In case of a long period of
indicator storage with power supply elements battery life gets reduced and there is the
possibility of detector damage by electrolyte from the battery;
4) Wipe the screen with a soft cloth. During wiping the product should be off.
5) Do not allow extraneous objects into this product through the window of the beta-
detector.
Type of fault
Likely cause
Elimination Method
After switching on the de-
tector there is no informa-
tion on the display
Batteries has not been
set or set in violation of
the polarity
Set the batteries observing
the polarity.
The icon «
»appeared
on the display
The battery is discharged
below the acceptable
level
Change the battery.
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