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Siemens SITRANS P Bedienungsanleitung Seite 147

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Seitenansicht 146
SITRANS P measuring instruments for pressure
Transmitters for hydrostatic level
MPS series (submersible sensor)
2/147
Siemens FI 01 · 2009
2
Measuring point setup, in principle
■
Technical specifications
SITRANS P pressure transmitters, MPS series (submersible sensor)
Mode of operation
Measuring principle Piezo-resistive
Input
Measured variable Hydrostatic level
Measuring range Maximum working pressure
• 0 ... 2 mH
2
O (0 ... 6 ftH
2
O) • 1.4 bar (20.3 psi) (corresponds
to 14 mH
2
O (42 ftH
2
O))
• 0 ... 4 mH
2
O (0 ... 12 ftH
2
O) • 1.4 bar (20.3 psi) (corresponds
to 14 mH
2
O (42 ftH
2
O))
• 0 ... 5 mH
2
O (0 ... 15 ftH
2
O) • 1.4 bar (20.3 psi) (corresponds
to 14 mH
2
O (42 ftH
2
O))
• 0 ... 6 mH
2
O (0 ... 18 ftH
2
O) • 3.0 bar (43.5 psi) (corresponds
to 30 mH
2
O (90 ftH
2
O))
• 0 ... 10 mH
2
O (0 ... 30 ftH
2
O) • 3.0 bar (43.5 psi) (corresponds
to 30 mH
2
O (90 ftH
2
O))
• 0 ... 20 mH
2
O (0 ... 60 ftH
2
O) • 6.0 bar (87.0 psi) (corresponds
to 60 mH
2
O (180 ftH
2
O))
Output
Output signal 4 ... 20 mA
Accuracy To EN 60770-1
Error in measurement (including
non-linearity, hysteresis and repeat-
ability, at 25 °C (77 °F))
0.3% of full-scale value (typical)
Influence of ambient temperature
Zero and span
• 1 ... 6 mH
2
O (3 ... 18 ftH
2
O) 0.45%/10 K of full-scale value
• ≥ 6 mH
2
O (≥ 18 ftH
2
O) 0.3%/10 K of full-scale value
Long-term stability
Zero and span
• 1 ... 6 mH
2
O (3 ... 18 ftH
2
O) 0.25% of full-scale value/year
• ≥ 6 mH
2
O (≥ 18 ftH
2
O) 0.2% of full-scale value/year
Rated operating conditions
Ambient conditions
• Process temperature -10 ... +80 °C (+14 ... +176 °F)
• Storage temperature -40 ... +100 °C (-40 ... +212 °F)
Degree of protection to
DIN EN 60529
IP68
Design
Weight
• Pressure transmitters ≈ 0.4 kg (≈ 0.88 lb)
• Cable 0.08 kg/m (≈ 0.054 lb/ft)
Electrical connection Cable with 2 conductors with
screen and vent pipe, strength
cord (max. 300 N (67.44 lbf)
Material
• Seal diaphragm Stainless steel, mat. No.
1.4571/316 Ti
• Casing Stainless steel, mat. No.
1.4571/316 Ti
• Gasket Viton
• Connecting cable Optionally
PE/HFFR sheath (non-halogen)
or
FEP sheath
Power supply
Terminal voltage on pressure trans-
mitter (U
B
)
10 ... 36 V DC
Certificate and approvals
The transmitter is not subject to the pressure equipment directive
(DGRL 97/23/EC)
Explosion protection
• Intrinsic safety "i" TÜV 03 ATEX 2004X
- Identification Ex II 1 G EEx ia IIC T4
Junction box
Application For connecting the transmitter
cable
Design
Weight 0.2 kg (0.44 lb)
Electrical connection 2 x 3-way (28 ... 18 AWG)
Cable entry 2 x M20x1.5
Enclosure material Polycarbonate
Vent pipe for atmospheric pressure
Screw for cable strength cord
Rated operating conditions
Degree of protection to DIN EN
60529
IP54
Cable hanger
Application For mounting the transmitter
Design
Weight 0.16 kg (0.35 lb)
Material Galvanized steel, polyamide
© Siemens AG 2008
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