Endress+Hauser HART Proline Promass 83, Руководство по эксплуатации

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Proline Promass 83 Commissioning
Hauser 83
6.6 Purge and pressure monitoring connections
The sensor housing protects the inner electronics and mechanics and is filled with dry
nitrogen. Beyond that, up to a specified measuring pressure it additionally serves as
secondary containment.
#
Warning!
For a process pressure above the specified containment pressure, the housing does not serve
as an additional secondary containment. In case a danger of measuring tube failure exists
due to process characteristics, e.g. with corrosive process fluids, we recommend the use of
sensors whose housing is equipped with special pressure monitoring connections (ordering
option). With the help of these connections, fluid collected in the housing in the event of
tube failure can be drained off. This diminishes the danger of mechanical overload of the
housing, which could lead to a housing failure and accordingly is connected with an
increased danger potential. These connections can also be used for gas purging (gas
detection).
The following instructions apply to handling sensors with purge or pressure monitoring
connections:
• Do not open the purge connections unless the containment can be filled immediately with
a dry inert gas.
• Use only low gauge pressure to purge. Maximum pressure 5 bar (72,5 psi).
6.7 Data memory (HistoROM), F-CHIP
At Hauser, the term HistoROM refers to various types of data storage modules on
which process and measuring device data is stored. By plugging and unplugging such
modules, device configurations can be duplicated onto other measuring devices to cite just
one example.
6.7.1 HistoROM/S-DAT (sensor-DAT)
The S-DAT is an exchangeable data memory in which all sensor relevant parameters are
stored, i.e., diameter, serial number, calibration factor, zero point.
6.7.2 HistoROM/T-DAT (transmitter-DAT)
The T-DAT is an exchangeable data storage device in which all transmitter parameters and
settings are stored.
Storing of specific parameter settings from the EEPROM to the T-DAT and vice versa has to
be carried out by the user (= manual save function). Detailed instructions regarding this can
be found on
→
68.
6.7.3 F-CHIP (Function-Chip)
The F-Chip is a microprocessor chip that contains additional software packages that extend
the functionality and application possibilities of the transmitter.
In the case of a later upgrade, the F-Chip can be ordered as an accessory and can simply be
plugged on to the I/O board. After start up, the software is immediately made available to
the transmitter.
Accessories
→
85
Plugging on to the I/O board
→
Page 94
ff
.
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Caution!
To ensure an unambiguous assignment, the F-CHIP is coded with the transmitter serial
number once it is plugged in. Thus, it can not be reused with other measuring devices.