Sub-Menu » Hygiene; Show Stev; Show Twa; Show Maximum Value - Dräger X-am 7000 Technisches Handbuch

The Menu » Info «
5.4 Sub-menu » Hygiene «
The sub-menu » Hygiene « contains all necessary functions for
interrogating the exposure values of all sensors which are activated for
exposure evaluation.
5.4.1

Show STEV

- This function displays the short-term values STEV (mean value of
a concentration over the mean-value period) for all sensors which
are activated for exposure evaluation.
Select the menu items » Info \ Hygiene \ Show STEV « in this order,

pressing the » « key after each selection.
OK
- The STEV value and the settings for the alarm threshold A1 are
displayed for all sensors which are activated for exposure evaluation.
Example:
5.4.2

Show TWA

- This function displays the time-weighted average (TWA) value of
the exposure, referred to one shift, for all sensors which are
activated for exposure evaluation. The shift duration can be set as
desired, page 71.
Select the menu items » Info \ Hygiene \ Show TWA « in this order,

pressing the » « key after each selection.
OK
- The TWA values and the settings for the exposure alarm are
displayed for all sensors which are activated for exposure evaluation.
54
5.4.3
- This function displays the maximum concentration values
measured since the exposure values were last reset for all sensors
which are activated for exposure evaluation.
Select the menu items » Info \ Hygiene \ Show max value « in this

order, pressing the »
- The maximum concentration values measured since the exposure
values were last reset are displayed for all sensors which are
activated for exposure evaluation.
5.4.4
- This function displays the minimum concentration values
measured since the exposure values were last reset for all sensors
which are activated for exposure evaluation.
Show STEV
Select the menu items » Info \ Hygiene \ Show min value « in this

Menu
order, pressing the »
STEL:
0 ppm NO2
STEL Alarm:
- The maximum concentration values measured since the exposure
10 ppm NO2
values were last reset are displayed for all sensors which are
activated for exposure evaluation.
i i

Show maximum value

« key after each selection.
OK

Show minimum value

« key after each selection.
OK
NOTICE
The exposure values are reset:
- when the instrument is switched on
- when the gas being measured is changed or
manually in the menu » Settings \ Hygiene \ Clr Exposition «,
page 70.
Dräger X-am 7000