Ashcroft F5510 Bedieningshandleiding - Pagina 6
Blader online of download pdf Bedieningshandleiding voor {categorie_naam} Ashcroft F5510. Ashcroft F5510 8 pagina's. Differential pressure gauge. non-electrical device. for industrial application
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7 Mounting/Installation
7.1 Safety
To ensure safe working during installation and servicing, suitable shut-off valves must be installed in the plant (see 5.4
Accessories), enabling the device:
To be depressurized or taken out of operation;
To be disconnected from the mains supply for repair or checks within the relevant plant;
Or to enable function tests of the device to be performed "on site".
During the works to mount/install the gauge, the plant must be protected against being switched back on.
7.2 Preparations (requirements for the installation location)
A check on suitability of the device for the medium to be measured, the scope of the measurement range and the
extent of the protection against special conditions such as vibrations, pulsations and pressure blows.
A bracket must be installed to support the pressure gauge if the pipe is not able to provide adequate support.
The installation location should be chosen such that the work-spaces for operating personnel are not located to
the rear of the pressure gage.
7.3 Assembly/Installation
Using appropriate accessories, the device can be installed on flat walls, mounting plates, on pipes or in panels or
boards.
Ex works, the device is supplied and calibrated for vertical installation. In the event of an installation orientation
deviating from the vertical (max. ±10°), the zero setting of the display must be corrected (see 7.4.1 Zero point
adjustment).
7.3.1 Process connection
Connection must be undertaken by authorized and qualified specialist staff only.
Use only with the mechanical process connection provided – regarding the configuration, see order code on the
device type label, with a matching threaded seal.
When connecting the device, the pipes must be depressurized.
The pressure metering pipe must be laid inclined in such a way that, for example, for measurements of fluids no
air pockets can form, and for measurements of gases no water pockets. If the necessary incline is not achieved,
then at suitable points water separators or air separators must be installed.
The pressure metering pipe must be kept as short as possible and laid without sharp bends, to avoid the
occurrence of irritating delays.
The pressure connectors are labeled with + and – symbols on the device. The pressure connection pipes must be
fitted in accordance with this labeling.
+ high pressure port
- low pressure port
With liquid measurement media, the pressurized connection pipe must be degassed, since any gas bubble
inclusions result in measurement error.
If water is used as the measurement medium, the device must be frost-protected.
Safety notice: Only mount using the correct open-jawed wrench, and do not twist the device itself.
7.4 Starting up
The precondition for start-up is proper installation of all electrical feed lines and metering pipes. All connecting pipes
must be laid such that no mechanical forces can act on the device.
Before start-up, the seal on the pressurized connection line must be checked.
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