sewerin EX-TEC SR2, Operating Instructions Manual

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15
•
holding down the threshold value
button
and and and and and repeatedly pressing
one cursor button increases or
reduces the alarm threshold value
•
this value is preserved even when
the detector is switched off
2.6 2.6 2.6 2.6 2.6 Switching measuring ranges Switching measuring ranges Switching measuring ranges Switching measuring ranges Switching measuring ranges
•
all detectors have an
analogue analogue
analogue analogue analogue
display display
display display
display (above, full range) and and
and and
and a
digital display digital display digital display digital display digital display (below);
both scales indicate the same
concentration (e.g. 70 PPM)
•
the full range full range
full range full range
full range is a logarithmic
scale covering the range:
0 PPM ... 100 %VOL
•
here the display of low
concentrations is intensified;
the measurement result can be
read off from the digital display
•
repeatedly pressing the
zoom zoom
zoom zoom zoom
button button
button button
button switches between the full full
full full
full
and optimum ranges optimum ranges optimum ranges optimum ranges optimum ranges
•
depending on the concentration,
switching between the following
measurement
ranges is
automatic: automatic: automatic: automatic: automatic:
0 ... 10 PPM 0 ... 1 %VOL
0 ... 100 PPM 0 ... 10 %VOL
0 ... 1,000 PPM 0 ... 100 %VOL
•
the optimum measurement range
in this example is 0 ... 100 PPM