25
"
PM2012M Data Processing Software
" (on memory drive included with the
instrument) enables the operator
to change
the dose measurement units from Sv to
R and vice versa,
to set
a DE threshold, and
to reset
the dose and dose
accumulation time values. The event of the dose value resetting and the reset dose
value are stored in the instrument’s memory.
When the preset dose rate or dose thresholds are exceeded, the operator can switch
the instrument to any other screen. However, the instrument will display
the
respective threshold screen
in about 3 seconds.
If the DER and DE
thresholds are exceeded simultaneously
, the dose threshold
screen will be displayed first and the respective audible signal will sound, and then
the DER threshold screen will be displayed and the respective audible signal will
emit.
4.4 Detection of the chemical warfare agents
After completing the calibration procedure (the unit displays "CHEM: SEARCH ON", refer to
section 3.4.2.1 and Figure 3.7), switch the unit to the CWA detection mode: turn the rotating
head in the direction shown by the arrow to math the mark on the head and the
∆
mark on the
unit case. The unit displays "CHEM: SEARCH".
If the instrument is switched to the CWA detection mode while the calibration
procedure is not completed, the unit displays "CHEM: CALIBRATION ON".
Please switch the unit to the calibration mode (refer to section 3.4.2.1).
While in the CWA detection mode the instrument provides continuous and independent control
of the chemical environment by analyzing the measured CWA concentrations relative to the
preset thresholds.
Red LEDs bar indicates the presence of arsenic containing (lewisite) vapors in the air (Figure
4.4; Table 4.1).
Yellow LEDs bar indicates the presence of organophosphorous compound vapors (sarin, soman,
V-gases) in the air.
Figure 4.4 – Indication of the CWA vapors detected in air
Red LEDs bar
indicating detected
arsenic containing vapors
Yellow LEDs bar
indicating detected
organophosphorous vapors
