MSA ICU Mode D'emploi page 4

Notice!
Like any piece of complex equipment, this product will do the job
designed to do only if it is used and serviced in accordance with the
manufacturer's instructions. This manual must be carefully read by all
individuals who have or will have the responsibility for using or servicing
the product.
The warranties made by MSA with respect to the product are voided if
the product is not used and serviced in accordance with the instructions
in this manual. Please protect yourself and your employees by following
them.
Before choosing and using this product, it is required to assess whether
this product is suitable for the applications intended. Choice and use are
beyond the control of MSA. Therefore, the liability MSA covers only the
consistent quality of this product.
The above does not alter statements regarding the warranties and
conditions of sale and deliveries of MSA.
The device is approved according to Directive 2014/34/EU.
The device may be used in potentially explosive areas (see 14).
The device must not be opened in potentially explosive areas. It is
protected by a rubber housing which must not be removed during use.
1 Application
The integrated control unit ICU is an auxiliary device for users of
compressed air breathing apparatus. It informs the user about the
compressed air cylinder pressure, the remaining service time and the
temperature. Furthermore, the ICU has an integrated motion sensor
which gives an audible and visible alarm if the user is motionless. The
temperature indication is a measure for the average heat stress during
the intervention. It is not a thermometer.
2 Design
The ICU has a robust housing into which an electronic unit and a
mechanical pressure gauge are integrated. Both function independent of
each other. The mechanical pressure gauge has an analog indication,
i. e. with a needle on a luminescent scale. The electronic unit
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