sewerin EX-TEC SNOOPER H, Руководство по эксплуатации

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2.4 2.4 2.4 2.4 2.4 Alarms Alarms Alarms Alarms Alarms
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a change in the gas concentration is
indicated by the LCD display (item 2)
and the concentration-dependent signal
(item 3)
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the gas detector warns of gas
concentrations above 1.00 vol.% by
means of the continuous optical and
acoustic alarms (items 3 and 4)
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values exceeding 1.00 vol.% are not
displayed
☞
T T T T To continue leak detection bring o continue leak detection bring o continue leak detection bring o continue leak detection bring o continue leak detection bring
the gas detector into fresh air so the gas detector into fresh air so the gas detector into fresh air so the gas detector into fresh air so the gas detector into fresh air so
that the zero point can be re- that the zero point can be re- that the zero point can be re- that the zero point can be re- that the zero point can be re-
established. established. established. established. established.
2.5 2.5
2.5 2.5 2.5
Manual zero-point adjustment Manual zero-point adjustment
Manual zero-point adjustment Manual zero-point adjustment Manual zero-point adjustment
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this is necessary if the current ambient
atmosphere does not permit the
automatic establishment of a zero point
☞
With the detector switched on, With the detector switched on, With the detector switched on, With the detector switched on, With the detector switched on,
push the push the push the push the push the on/off key (item 1) on/off key (item 1) on/off key (item 1) on/off key (item 1) on/off key (item 1)
upwards for approx. 2 seconds. upwards for approx. 2 seconds. upwards for approx. 2 seconds. upwards for approx. 2 seconds. upwards for approx. 2 seconds.
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the current ambient atmosphere is set
as a new zero point new zero point new zero point new zero point new zero point
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the zero point flashes while this process
is under way (approx. 2 minutes)