Baker Hughes Druck 8000 Series, Инструкция по эксплуатации

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Copyright 2010 Baker Hughes Company.
4 | TERPS Instruction Manual–English
To identify the electrical and pressure connections, refer to the product data sheet or, if
applicable, the specification drawing.
Do not use force when installing the sensor. Do not tighten the sensor by rotating the housing.
For this purpose, a hexagon socket for the wrench is provided on the housing.
The ambient temperature and the process media to be measured must not exceed the ranges
specified in the sensor specification.
In the negative temperature range it is necessary to exclude the accumulation and freezing of
condensate in the working chambers and inside the connecting pipelines for gaseous media and
freezing, crystallization of the medium or crystallization from it, of the individual components for
liquid media.
The materials used for the primary enclosure and pressure bearing surfaces are identified in the
product data sheet or, if applicable, the specification drawing. Make sure that the materials are
applicable for the installation.
Before using the equipment, remove the plastic/rubber protection cap from the pressure
connector.
The 80XX, 82XX and 83XX are harsh media isolated product. Isolation is achieved by
hermetically sealing the sensor element, see Figure 3, in an oil filled chamber. The weight of this
oil gives a g sensitivity as a pressure offset error.
The 81XX is not a harsh media isolated product. The pressure media comes directly into contact
with the sensor element. Care must be taken to ensure the pressure media does not damage the
sensor element. There is negligible change in offset due to mounting position and vibration.
Figure 3: TERPS Sensor Element
To calibrate the 8XXX Series, the unit is mounted vertically with the pressure port at the lowest
point. Orientation other than this produces a pressure offset error as specified in the data sheet.
The error is most noticeable at lower pressure ranges.
Note: The g-sensitivity will also create an error in a high vibration environment and the unit should
be mounted accordingly.
3.2 Safety Measures
The operation of sensors in systems whose pressure may exceed the overload values specified
in the data sheet or customer-specific specification drawing is not allowed.