8
Mounting of the device
8.1
Safety instructions
The product should be installed and used only according to the intended application.
Fitment of the regulator and maintenance work should be carried out by only trained
personnel. Mounting and servicing operations should be carried out only after
switching off the voltage. The current safety regulations must be followed! All
activities in the compressed air network should be done in pressure less condition.
The device should be operated only with safe low voltage of 24 V DC. This also
applies to all external connections, for example, the relay outputs.
8.2
Application notes
Before mounting, the compressed air quality is to be checked at the assembly
location. In case of water or oil leakage, first the system is to be put in order. With
substantial water or oil exposure, the sensor can get damaged.
The compressed air withdrawal from the pipe must be done on the top side. The
device must be mounted above the compressed air line, so that in case of any failure,
the originated condensate does not flood the measuring chamber.
Use only suitable materials. The used materials must be steam diffusion sealed.
Hence, please do not use normal PUR-plastic hoses! For flexible connections, only
PTFE ("TEFLON “) is recommended as hose material. Up to –30 °C tpd, all metals are
suitable, in which stainless steel is to be preferred. Very long probe lines or
unnecessary joints are to be avoided.
All the components connected in series with the measuring probe should not show
any steam diffusion to the environment! Please only use high quality components,
e.g. ball valves with PTFE gaskets.
Please carefully seal all joints to the probe and the measuring chamber. However, do
not use anaerobic liquid sealing materials, because these can damage the sensor
element!
With time, heavy particle content deposit on the filter or the diverting throttle, which
leads to a delayed response behaviour. In critical cases, an additional micro filter
must be fitted before the instrument.
In case of undefined compressed air quality, use condensate separators or particle
filters. The additional components must be suitable for the application!
In EMV-critical environment, the measuring chamber should be electrically insulated
from the metal tube of the compressed air network. For this purpose, for example, a
double nipple of PTFE or polypropylene is suitable, which can be obtained from us on
enquiry.
