DURAG D-R 290, Руководство по эксплуатации

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5 | Installation
D-R 290 69
The measurement location must not only be accessible without hazard for commis­
sioning and calibration work, but also for subsequent maintenance and service activi­
ties.
To determine the space required, refer to
Fig. 5.3 :
1 Adjustment flanges aligned to each other within ± 1°
2 Duct wall 3 Welded-in pipe with adjustment
flange
4 Red dot 6 Rubber sleeve
7 12 disc springs * 8 1 spherical washer *
9 1 self-locking nut * 10a Measuring head (MK)
10b Reflector (R) * per threaded stud
Fig. 5.3: Installation example on a horizontal duct
Free space around the device housing
If several housings (e.g. for a universal operation unit and control electronics for fail-
safe shutters) are installed alongside each other, allow sufficient clearance between
them to allow the hinged parts of the housings to be swung out, according to their
height. The opening screws (for the control electronics of fail-safe shutters, on the
right hand side wall) must also be accessible. Otherwise it will not be possible to install
the housings subsequently.
For this also see the section of dimensional diagrams:
9.3.4 Dimensional diagram of the control electronics D-SK AE [
}
186]
System installation sequence :
1. Check the preconditions for operation ( 5.2.1 Preconditions for operation [
}
66] )
2. Select the optional system components ( 5.2.3 Instructions for selection the device
variant and measuring point [
}
67] )
3. Select the measuring point ( 5.2.3 Instructions for selection the device variant and
measuring point [
}
67] )
4. Plan the installation locations for purge air shutter unit(s) ( 5.8.1 Selection of an in­
stallation location of the purge air unit (blower) [
}
101] )
5. Install and align the welded-in pipes with adjustment flange for the measurement
and reflector units ( 5.4.1 Standard installation of the welded-in pipes with adjust­
ment flanges [
}
70] ff., 5.4.3 Alignment of the tube stubs [
}
76] )
5.2.4
5.3