Ashcroft A Manuale di istruzioni per l'installazione e la manutenzione - Pagina 6
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6.3 Description of components
6.3.1 Stem
The stem, with a diameter of 6-9.6 mm and a length of 63-1000 mm, contains the bi-metal helix on the side facing
away from the case. Its active length is approx. 50 mm. The stem must not be subjected to pressure without a
supplementary thermowell.
6.3.2 Dial with pointer
The gauge is equipped with a dial and pointer pursuant to EN 13190 or ASME B40.200.
Erläuterung, zusätzlich ein Hinweis:
6.3.3 Instrument connection
The instrument connection is located on the underside of the gauge and can be executed as a threaded or flanged
connector. Union instrument connections permit the case to be oriented according to the point of installation.
6.4 Accessories
Please contact the manufacturer regarding special tools and accessories.
7 Transport
7.1 Safety
The thermometer should be protected against the effects of knocks and impacts. The device should only be
transported in the packaging provided, to protect against glass breakage. The device should only be transported in a
clean condition (free from residues of measuring media).
7.2 Transport inspection
The delivery is to be checked for completeness and damage during transport. In the event of damage during transport,
the delivery is not to be accepted, or only accepted subject to reservation of the scope of the damage being recorded
and, if necessary, a complaint initiated.
7.3 Storage
The gauge is to be stored in dry, clean conditions, within a temperature range of -20 to +60 °C, protected against
direct exposure to sunlight and protected against impact damage.
8 Mounting/Installation
8.1 Safety
Thermowells must be used for all processes and flowing media subjected to pressure. They protect the thermometer
stem against corrosion and mechanical damage, and permit the thermometer to be removed without leaks.
8.2 Preparations (requirements for the installation location)
A check on suitability of the device and of the thermowell that may be required for the medium to be measured,
the arrangements in the scope of measurement range and the extent of the protection against special conditions
such as vibrations.
A bracket must be installed to support the gauge if the metering pipe is not able to provide adequate support.
The operating temperature range is -20°C to + 60 °C.
8.3 Mounting/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.
If the installation location deviates from the vertical (max. ± 5°), the zero setting on the indicator must be corrected
(see 8.4.1 Zero point adjustment).
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