Operation
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WARNING
Loss of explosion protection!
Surfaces/labels may compromise the explosion protection.
►
Surfaces/labels larger than 16 cm
2
must fulfil special explosion protection
conditions (e.g. electrical conductivity).
4 Operation
4.1
Preparations for operation
WARNING
Risk of explosion!
When using a control unit, carrying strap or accessory that is not suitable, there
is a risk that flammable or explosive atmospheres could be ignited.
►
The control unit on which the mobile app is installed must be suitable and
approved for use in explosion-hazard areas.
►
Only use a control unit that is specified in the technical manual
(www.draeger.com/ifu).
►
Only use the carrying strap supplied (order no. 6851846) made from anti-
static material.
►
Only use accessories that are suitable for use in explosion-hazard areas.
1. Before first use, the sensor unit and the control unit with the mobile app
installed must be charged and made available.
2. The device must be checked for functional integrity each day before use,
with a known concentration of the gas being measured close to the
application-specific target concentration, or preferably a test gas given in the
technical manual.
The result should differ from the test gas by a maximum of 20 %. The
accuracy can be corrected via a calibration process in the event of
deviations or higher accuracy requirements.
4.2 Operating
concept
– The sensor unit is operated and controlled via the mobile app on the control
unit.
– In the mobile app, there are various views that can be used for navigation.
– The
Measure
view includes the display of the Seeker measuring mode and
the selection of analysis programs in Analysis measuring mode.
– The
Records
view can be used to display saved results.
– Other views are used for configuration activities, which are described in the
technical manual.
– The automatic tips and instructions in the mobile app provide the user with
additional guidance on operation.
Detailed information on operating the mobile app can be found in the
technical manual.
4.3
Turning the sensor unit on
1. Hold down the on/off button for 3 s.
– The status LED blinks as long as the sensor unit is not connected to the
mobile app (blinking of the status LED
).
– When the sensor unit is connected to the mobile app, the status LED is
lit continuously (
). If the sensor unit does not connect
automatically, follow the instructions in the mobile app.
– After turning on, the sensor unit is automatically in the start-up and heat-
up phase, even if it is not yet connected to the mobile app.
2. Turn on the control unit and open the mobile app. Follow the instructions in
the app.
3. The sensor unit is operated and controlled via the mobile app.
4.4
Turning the sensor unit off
●
Hold down the on/off button for 3 s until the status LED goes out.
●
Alternatively, the sensor unit can be turned off in the mobile app, assuming
they are still connected.
