Ashcroft P5500, Инструкция по установке и техническому обслуживанию

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6.3 Description of components
6.3.1 Scale with pointer
The pressure gauge is equipped with a dial face and pointer pursuant to EN 837-3, nominal size 100 mm or 160 mm.
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Erläuter ung, zusätzlich ei n Hi nweis:
6.3.2 Instrument connection
The instrument connection is located on the underside of the pressure gauge and can be a threaded or flanged
connector.
6.3.3 Vent valve
The vent valve for the housing is located on the top side. If the nipple is pulled out, the housing is ventilated and the
pressure which has built up in the housing due to the influence of temperature is discharged. With the valve closed,
protection class IP 65 is achieved.
6.3.4 Rear wall/plug with blow-out capability
The pressure gauge has a plug capable of blowing out on the rear wall of the housing (Model P5500) or a rear wall
capable of blowing out (Model P6500). These act as a safety feature pursuant to EN 837-3 and simultaneously allow for
temperature compensation for the housing, via a rubber membrane.
6.4 Accessories
Please contact the manufacturer regarding special tools and accessories.
7 Transport
7.1 Safety
The pressure gauge 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 of residues of measuring media).
7.2 Transport inspection
The delivery must be checked for completeness and damage during transport. In the event of damage during transport,
the delivery must not 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 pressure gauge must be stored in dry, clean conditions, within a temperature range of -40 to +70 °C, protected
against direct exposure to sunlight and protected against impact damage.
8 Assembly/Installation
8.1 Safety
To ensure safe working during installation and servicing, suitable shut-off valves must be installed in the plant (see 6.4
Accessories), enabling the device:
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To be depressurized or taken out of operation;
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To be disconnected from the mains supply for repair or checks within the relevant plant;
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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.
8.2 Preparations (requirements for the installation location)
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A check on suitability of the device for the medium to be measured, the scope of the measurement range and of the
protection against special conditions such as vibrations, pulsations and pressure spikes.
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A bracket must be installed to support the pressure gauge if the metering pipe is not able to provide adequate
support.
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Devices with a blow-out require a minimum spacing to the rear (20 mm).