Endress+Hauser Cerabar PMP51B, Руководство по эксплуатации

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Technical data Cerabar PMP51B Analog
52 Hauser
Fill fluid Density
1)
kg/m
3
Vegetable oil 920
Inert oil 1900
1) Density of the diaphragm seal fill fluid at 20 °C (68 °F).
The calculation of the operating temperature range of a diaphragm seal system depends
on the fill fluid, capillary length and capillary internal diameter, process temperature and
oil volume of the diaphragm seal. Detailed calculations, e.g. for temperature ranges,
negative pressure and temperature ranges, are done separately in the Applicator
" Sizing Diaphragm Seal ".
A0038925
Oxygen applications (gaseous)
Oxygen and other gases can react explosively to oils, grease and plastics. The following
precautions must be taken:
• All components of the system, such as measuring devices, must be cleaned in accordance
with the national requirements.
• Depending on the materials used, a certain maximum temperature and a maximum
pressure must not be exceeded with oxygen applications.
The cleaning of the device (not accessories) is offered as an optional service.
• p
max
: depending on the lowest-rated element, with regard to pressure, of the selected
component: overpressure limit (OPL) of the sensor, process connection (1.5 x PN) or fill
fluid (80 bar (1 200 psi))
• T
max
: 60 °C (140 °F)
Standard device (without diaphragm seal)
• Process connections with internal process membrane: –40 to +125 °C (–40 to +257 °F) ;
150 °C (302 °F) for max. one hour)
• Process connections with flush membrane:
• Thread (ISO228, ASME, metric DIN13) and flanges (EN, ASME, JIS):
–40 to +100 °C (–40 to +212 °F)
• Exceptions with seal supplied (M20 x 1.5, G1/2 DIN3852):
–20 to +85 °C (–4 to +185 °F)
Devices with diaphragm seal
• Depends on diaphragm seal and fill fluid: –70 °C (–94 °F) up to +400 °C (+752 °F)
• Observe the maximum gauge pressure and maximum temperature
Diaphragm seal with tantalum membrane
–70 to +300 °C (–94 to +572 °F)