WIKA 892.34.1998 - Handbuch (Seite 10)

- Seite 10 - - page 15 -
English
12 Kundenseitige Maßnahmen bei Retouren/Reparaturen
Gefährliche Arbeitsstoffe
Wir bitten bei Anlieferung von Reparaturgeräten und Retouren, die mit gefährlichen
Arbeitsstoffen im Messstoffraum und/oder an den Oberflächen in Berührung gekommen
sind, vorher um Reinigung und möglichst genaue Stoffangabe des gefährlichen
Mediums.
Bei Reinigung durch WIKA ist die genaue Angabe des Messstoffes bzw. dessen Zusam-
mensetzung und Verarbeitungshinweise incl. Angabe der Schutzmaßnahmen zum
sicheren Umgang für unser Annahme- und Wartungspersonal zwingend erforderlich.
Achtung: Bei von WIKA nicht zu entsorgenden Arbeitsstoffen erfolgt eine Rücksendung
an den Kunden.
Kennzeichnung und Verpackung gemäß Gefahrstoff-Verordnung.
13 Entsorgung/Ende der Lebensdauer
Entsorgung durch WIKA gemäß Auftrag. Bei Sendung der zu entsorgenden Geräte
Passus "Gefährliche Arbeitsstoffe" beachten (siehe Punkt 12).
Entsorgungsempfehlung bei kundenseitiger Entsorgung:
- bei Gefahrenstoffen im/am Gerät zuerst Gefahrstoff unberührte Teile abbauen
- Gefahrenstoff unberührte Teile ð Schrott, je nach Material
- Gefahrenstoff berührte Teile
ð
Sondermüll
- Elektronikbauteile ð Sondermüll, geeignete Entsorgung
Technische Änderungen vorbehalten.
B e t r i e b s a n l e i t u n g f ü r D r u c k m e s s g e r ä t e m i t F e r n g e b e r O p e r a t i n g I n s t r u c t i o n s f o r P r e s s u r e T r a n s m i t t e r s
2 Installation instructions
Installation arrangement
The pressure transmitter should be installed and utilized without exposure to vibration.
It is common practise to install the pressure transmitter by means of an isolating device
to facilitate replacement while the system is pressurised and to set the gauge inoperative
when reading is not required.
Test connector
Local safety codes such as for pressure or steam vessels may specify isolating devices
enabling on-site testing of the pressure transmitter.
Pressure gauge mounting provisions
If the pressure system or tail pipe is not sufficiently rigid to accept the weight of the
gauge, or capable of with standing any vibrations present, the gauge should be mounted
by means of a mounting device for surface or pipe mounting, if necessary with capillary
extension.
Effects of temperature
The operating temperature of the pressure transmitter, resulting from the effects of
pressure medium, ambient temperatures and possibly heat radiation must not exceed
the temperature span the pressure transmitter is intended for. Suitably shaped tailpipes
or syphons with water filling may be used to separate the pressure transmitter and its
isolating device from hot pressure media.
Chemical seals
Chemical seals may be employed to separate the pressure transmitter from any pressure
medium which cannot be allowed to enter the elastic pressure element. Chemical seal and
pressure element are filled with an inert liquid that acts as a pressure transmitting agent.
Once assembled and filled the pressure instrument must not be separated from the chemical seal.
Overload protection for pressure elements
Should the measuring media be subject to rapid fluctuations in pressure or pressure
surges have to be taken into account, these must not be allowed to act directly on the
pressure element. The pressure surges must be restricted in their effect, for example, by
fitting integral restrictor screws (to reduce the cross-section in the canal) or by using
adjustable snubber devices.
Pressure connection
The shut off device should have an adequately large bore (
≥ 6 mm) and be located in a
position where the accuracy of reading will not be affected by the flow of the media being
measured. The measuring line between the pressure connection and pressure transmitter
should have an adequately large inner diameter to avoid blockages or delays in pressure
transmission. It should also not have any sharp bends.
It is recommended that it be laid with a continuous incline of approx. 1:15.
Measuring line
The measuring line is to be set up and fitted so that it can take up the stresses occurring
caused by expansion, vibration and the influence of heat. When gases are used as
pressure media a water drain point is to provided at the lowest point and an air bleeder at
the highest point in the case of liquid pressure media.