Siemens SITRANS P Instrukcja Użytkownika Pobierz pdf (Strona 174)

Model Designations and Specifications UMSITRPDS3-1

November 2010

9-16

• Seal diaphragm Stainless steel, mat. No. 1.4404/316L or Hastelloy C4, mat. No. 2.4610, Monel, mat.

No. 2.4360, tantalum or gold

• Process flange and sealing screw Stainless steel, mat. No. 1.4408, Hastelloy C4, mat. No. 2.4610 or Monel, mat. No.

2.4360

• O-ring(s) FPM (Viton) or optionally: PTFE, FEP, FEPM and NBR

Measuring cell filling Silicone oil or inert filling liquid; max. 160 bar a (2320 psi a) with oxygen

measurement

Process connection 1/4-18 NPT and flange connection to DIN 19213 with mounting thread M10 to DIN

19213 or 7/16-20 UNF to EN 16518

Power Supply U

Terminal voltage at transmitter 10.5 to 45 Vdc

10.5 to 30 Vdc in intrinsically-safe mode

Certificate and approvals

See Table 9-20

HART communication

HART communication 230 to 1100 Ω

Protocol HART Version 5.x

Software for computer SIMATIC PDM

Note: 3.6 psi absolute (250 mbar a) Capsule

This measuring cell is designed for operation within the measuring limits of 0 to 3.63 psi

(absolute). When stored in the normal ambient pressure of about of about 14.7 psi

(absolute), the measuring cell is in the overload state. An overload error of up to 0.03 psi

may occur. The overload disappears in normal operation within the measuring limits and

the transmitter operates within specifications.

When performing accurate continuous pressure measurements within the measuring

limits, a readjustment of the transmitter zero for absolute pressure must be performed

after approximately one day (refer to Section 6.2.5).

If pressure measurements exceed the measuring limits repeatedly (e.g. batch processes

with transitions between vacuum and ventilation), a measuring cell with a maximum

range of 18.9 psi should be selected to avoid overloading.

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Siemens SITRANS P Instrukcja Użytkownika Strona 174