Siemens C12 - User Manual
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Table of Contents:
- Page 2 – SITRANS P; Transmitters for level; Introduction; Mode of operation; Parameterization using
- Page 3 – Technical data; Application
- Page 4 – Rated operating conditions; Design
- Page 5 – Displays and controls; Certificates and approvals
- Page 6 – Communication
- Page 7 – Example for ordering:; Ordering data; Order code
- Page 10 – Connection; Please add
- Page 11 – Dimensional drawings; Connection to ANSI B16.5; Effective diaphragm diameter
Siemens FI 01 · 2000
1/42
SITRANS P
Introduction
Transmitters for level
■
Application
The SITRANS P transmitter with mounting flange measures the
level of corrosive and non-corrosive liquids in open and closed
containers. Different spans are possible depending on the ver-
sion.
The nominal mounting flange diameter is DN 80 or DN 100, or
3 or 4 inches.
In the case of level measurements in open containers, the low-
pressure connection of the measuring cell remains open (mea-
surement with respect to atmosphere), while for measurements
in closed containers, this connection must be connected to the
container in order to compensate the static pressure.
The wetted parts are constructed from a variety of materials de-
pending on the degree of corrosion resistance required (see
Technical data).
The output signal is a load-independent direct current of 4 to
20 mA linearly proportional to the level (hydrostatic pressure), or
a digital bus signal.
Transmitters conforming to the type of protection "Intrinsic safe-
ty" and "Explosion-proof" may be installed within potentially ex-
plosive atmospheres (zone 1). The conformity certificate
corresponds to the European standard (CENELEC).
■
Adjustable spans
■
Types of protection and conformity certificates
4
Exists
Fig. 1/23 SITRANS P transmitters for level, with built-in analog indicator or digital display
Series
Span in mbar
25
to
5,000
HK
DS
DS (PA)
Measuring cells from 250 to 5,000 mbar
Series
Type of protection
Conformity certificate
Intrinsic
safety
Explosion-
proof
CENELEC
FM/CSA
HK
4
4
DS
4
4
4
DS (PA)
4
4
4
Fig. 1/24 Functional diagram
4
6
9
-
5
7
8
3
2
1
+
10
15
17
00 00000
M
16
,
11
12
13
14
I A U H
C
m
M
16
00000
00
18
17
HK series
DS series
+
Differential pressure
-
as input variable
I
A
Output signal
U
H
Power supply
1 Seal diaphragm of
mounting flange
2 Flange with tube
3 Capillary with filling liquid
of mounting flange
4 Seal diaphragm of meas. cell
5 Measuring cell body
6 Overload diaphragm
7 Silicon pressure sensor
8 O-ring
}
9 Process flange
10 Filling liquid of measuring cell
11 Instrument amplifier
12 Analog-to-digital converter
13 Microcontroller
14 Digital-to-analog converter or
PROFIBUS-PA interface
15 Digital display for
parameterization
16 Keys for parameterization
17 Analog indicator (option)
18 Digital display for parameter-
ization and measured value
HK series
DS series
Fi01_e_K01_S34-43.fm Seite 42 Freitag, 17. Dezember 1999 2:32 14
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Summary
Siemens FI 01 · 2000 1/43 SITRANS P Transmitters for level Introduction ■ Mode of operation The input pressure (hydrostatic pressure) acts on the measuring cell via the seal diaphragm (1, Fig. 1/24) of the mounting flange. The differential pressure present on the measuring cell is ap-plied via the s...
Siemens FI 01 · 2000 1/44 SITRANS P Technical data Transmitters for level SITRANS P ■ Technical data *) 0.4 instead of 0.2 and 0.3 instead of 0.15 for 10 < r 30. HK7MF4620 DS7MF4632 DS with PROFIBUS-PA7MF4632 Application See page 1/42 Mode of operation Measuring principle See page 1/43 Piezo-re...
Siemens FI 01 · 2000 1/45 SITRANS P Transmitters for level Technical data ■ Technical data HK7MF4620 DS7MF4632 DS with PROFIBUS-PA7MF4632 Rated operating conditions Installation conditions • Installation instructions Mounting position dependent on flange Ambient conditions • Ambient temperature (obs...
