Ashcroft T5500, Инструкция по эксплуатации и техническому обслуживанию

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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 67 (for T6500 dry execution IP65) 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 T5500) or a rear wall
capable of blowing out (Model T6500). These act as a safety feature pursuant to EN 837-1 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:

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.
8.2 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 of
the protection against special conditions such as vibrations, pulsations and pressure spikes.

A bracket must be installed to support the pressure gauge if the metering pipe is not able to provide adequate
support.

Devices with a blow-out require a minimum spacing to the rear (20 mm).

The installation location should be chosen such that the work-spaces for operating personnel are not located to
the rear of the pressure gauge.
8.3 Mounting/Installation
8.3.1 Process connection
As standard, the device is equipped for pipework mounting with a pressure connection shank pursuant to DIN EN 837-
1. The device is calibrated ex works for vertical installation.

Connection to 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.