DURAG D-R 290, Operating Manual

Page: 107 / 202

6 | Commissioning
D-R 290 107
Commissioning
Preconditions for operation (checklist)
Has the supply unit been installed, connected to the power supply and is it in
operation?
❑
Has the measuring head and reflector purge air supply been ensured? ❑
Are the measuring head and reflector mounted on the flue stack? ❑
Has the cabling been performed as specified? See section
●
5.7.2 Electrical connection to the D-TB 100 supply unit [
}
98]
●
5.8.3 Electrical installation of the purge air unit [
}
102] , 5.8.4 Electrical con­
nection for the purge air motor [
}
102]
●
5.5.4 D-SK AE electrical connection [
}
88]
❑
WARNING
Danger of injury due to insufficient skills!
Incorrect use can result in serious personal injury and material damage.
Only ever have work performed by suitably qualified specialised personnel! Ensure
compliance with the skills and knowledge described in section 2.4.1 Personnel, skills
[
}
22] .
Possible damage to the measuring head and reflector due to hot gases and
dust in the duct
Under no circumstances operate the measuring head and reflector unless the purge
air supply to the flange and dust duct is running. If the purge air supply is not running,
the measuring head and reflector will be irreversibly damaged within a short time due
to excessive heat and dust.
Optical alignment
After installation on the stack, the measuring system must be optically aligned. The
measuring system is factory-set to the measuring path length specified by the operat­
ing company. Therefore there is no need to open the system in order to make further
settings. If the measuring system has not yet been aligned to the corresponding meas­
uring path length, or if the measuring system is subsequently installed on a measuring
section of a different length, after adjustment a calibration to the dust free measuring
path must be performed (see 7.7.8 Calibration on the dust-free measuring path
[
}
146] ).
It is advisable that the optical alignment is done in the following sequence:
1. Make the electrical connections to the measuring head and supply unit / control
unit.
Switch on the power.
After the power has been switched on, the measuring system performs an LED
comparison measurement and a contamination check measurement. It then
switches into measurement mode and is thus ready for operation.
6
6.1