2/4Z series for gage pressure
2/6Z series for gage and absolute pressure
2/12SITRANS P250 for differential pressure
2/17ZD series for gage and absolute pressure
2/21Transmitters for food, pharma-
ceuticals and biotechnology
2/21SITRANS P Compact for gage
and absolute pressure
2/28SITRANS P300 for gage and absolute
essure
pr
2/47Transmitters for gage pressure for pa-
per industry
SITRANS P300 and DS III series with
PMC connection
2/47Technical description
Technical specifications, ordering data,
dimensional drawings
2/52-
2/58- SITRANS P300 with PMC connection
2/63Transmitters for gage, absolute and
2/63Technical description
2/70-
2/79- for gage and absolute pressure with
2/89- f
2/98-
2/107 - for differential pressure and flow
2/124 - for level
2/134 SITRANS P Accessories
2/134 Supplementary electronics for 4-wire con-
2/136 Accessories/spare parts for SITRANS P,
2/142 Factory-mounting of valve manifolds on
DS III series with PMC connection
differential pressure, flow and level
DS III, DS III PA and DS III FF series
Technical specifications, ordering data,
dimensional drawings
for gage pressure
front-flush diaphragm
or absolute pressure (from gage
pressure series)
for absolute pressure
(from differ
Transmitters for gage, absolute and differential pressure
Z series for gage pressure
■
Overview
SITRANS P pressure transmitters, Z series for gage pressure
(7MF1562-...)
The SITRANS P pressure transmitter, Z series (7MF1562-...),
measures the gage pressure of aggressive and non-aggressive
gases, liquids and vapors.
■
Design
The main components of the pressure transmitter are:
• Brass housing with silicon measuring cell and electronics
plate
• Process connection
• Electrical connection
The silicon measuring cell has a thin-film strain gage which is
mounted on a ceramic diaphragm. The ceramic diaphragm can
also be used for aggressive media.
The process connection to DIN EN 837-1 is made of brass and
has a male thread G½B or a female thread G
The electrical connection is made using a plug to DIN 43650
with a M16x1.5 cable inlet.
■
Function
The pressure transmitters of the Z series for gage pressure measure the pressure of aggressive and non-aggressive gases,
liquids and vapors.
The measuring cell is temperature-compensated.
Mode of operation
1
/8B.
■
Benefits
• High measuring accuracy
• Sturdy brass housing
• For aggressive and non-aggressive media
• For measuring the pressure of liquids, gases and vapor
• Temperature-compensated measuring cell
• Compact design
■
Application
The pressure transmitter of the Z series for gage pressure
(7MF1562-...) is used above all in the following industrial areas:
• Power engineering
• Mechanical engineering
• Shipbuilding
• Water supply etc.
A concrete application example is the measurement of com-
pressed air containing oil in compressors or compressor stations.
SITRANS P pressure transmitters, Z series (7MF1562-...), functional diagram
The thin-film measuring cell has a thin-film resistance bridge at
which the operating pressure p is transmitted through a ceramic
diaphragm.
The measuring cell output voltage is fed to an amplifier and converted into an output current of 4 to 20 mA. The output current
is linearly proportional to the input pressure.
Transmitters for gage, absolute and differential pressure
Z series for gage and absolute pressure
■
Overview
SITRANS P pressure transmitters, Z series for pressure and absolute
pressure (7MF1564-...)
SITRANS P pressure transmitters, Z series (7MF1564-...), measure the gage and absolute pressure as well as the level of liquids and gases.
■
Benefits
• High measuring accuracy
• Sturdy stainless steel housing
• For aggressive and non-aggressive media
• For measuring the pressure of liquids, gases and vapor
• Temperature-compensated measuring cell
• Compact design
■
Application
The pressure transmitter of the Z series for gage pressure and
absolute pressure (7MF1564-...) is used above all in the following industrial areas:
• Chemical industry
• Pharmaceutical industry
• Food industry
• Mechanical engineering
• Shipbuilding
• Water supply
■
Design
The design of the pressure transmitter is dependent on the measuring range.
Measuring range <1 bar (<14.5 psi)
Main components:
• Stainless steel housing with piezo-resistive silicon measuring
cell (with stainless steel diaphragm, temperature-compensated) and electronics module
• Process connection made of stainless steel in diverse designs
(see Selection and Ordering data)
• Electrical connection made using a plug to DIN 43650 with the
cable inlet M16 x 1.5, ½-14 NPT or round plug connector M12.
The pressure transmitters with a nominal range < 1 bar g
(< 14.5 psi g) are optionally available with or without explosion
protection.
Measuring range
Main components:
• Stainless steel housing with ceramic measuring cell and electronics module. The temperature-compensated ceramic measuring cell has a thin-film strain gage which is mounted on a
ceramic diaphragm. The ceramic diaphragm can also be
used for aggressive media.
• Process connection made of stainless steel in diverse designs
(see Selection and Ordering data)
• Electrical connection made using a plug to DIN 43650 with the
cable inlet M16 x 1.5, ½-14 NPT or round plug connector M12.
The pressure transmitters with a nominal range ≥ 1barg
(≥ 14.5 psi g) are optionally available with or without explosion
protection.
■
Function
The pressure transmitter measures the gage and absolute pressure as well as the level of liquids and gases.
Mode of operation
SITRANS P pressure transmitters, Z series (7MF1564-...), functional diagram
The mode of operation of the pressure transmitter is dependent
on the measuring range.
Measuring range <1 bar (<14.5 psi)
The silicon measuring cell of the pressure transmitter has a
piezo-resistive bridge to which the operating pressure is transmitted through silicone oil and a stainless steel diaphragm.
The measuring cell output voltage is fed to an amplifier and converted into an output current 4 ... 20 mA. The output current is
linearly proportional to the input pressure
Measuring range
The thin-film measuring cell has a thin-film resistance bridge to
which the operating pressure p is transmitted through a ceramic
diaphragm.
The voltage output from the measuring cell is converted by an
amplifier into an output current 4 ... 20 mA or an output voltage
of 0 ... 10 V DC.
The output current and voltage are linearly proportional to the input pressure
≥1 bar (≥14.5 psi)
≥1 bar (≥14.5 psi)
2/6
Siemens FI 01 · 2009
SITRANS P measuring instruments for pressure
122 (4.8) without Ex protection
1)
131 (5.15) with Ex protection
(diam. 1.1)
M16x1,5
or
½-14 NPT
1) Length on version for voltage
output 0 ... 10 V: 96 (3.8)
Transmitters for gage, absolute and differential pressure
Z series for gage and absolute pressure
Selection and Ordering dataOrder No.Order code
■
SITRANS P pressure transmitters for pressure, series Z for gage and absolute pressure
2 or 3-wire system, rising characteristic curve
Measuring rangeperm. working pressureBurst pressure
Min.Max.
For gage pressure
with metal measuring cell
0 ... 100 mbar g (0 ... 1.45 psi g) -0,6 bar g (-8.7 psi g) 0,6 bar g (8.7 psi g)1 bar g(14.5 psi g)
0 ... 160 mbar g (0 ... 2.32 psi g) -0,6 bar g (-8.7 psi g) 0,6 bar g (8.7 psi g)1 bar g(14.5 psi g)
0 ... 250 mbar g (0 ... 3.63 psi g) -1 bar g(-14.5 psi g) 1bar g(14.5 psi g) 1.7 bar g (25 psi g)
0 ... 400 mbar g (0 ... 5.80 psi g) -1 bar g(-14.5 psi g) 1bar g(14.5 psi g) 1.7 bar g (25 psi g)
0 ... 600 mbar g (0 ... 8.70 psi g) -1 bar g(-14.5 psi g) 3bar g(43.5 psi g) 5 bar g(72 psi g)
Other version for measuring range < 1 bar (< 14.5 psi g), add Order code and plain text:
measuring range: ... up to ... mbar g (psi g)
with ceramic measuring cell
0 ... 1 bar g(0 ... 14.5 psi g) -0,4 bar g (-5.8 psi g) 2bar g(30 psi g)5 bar g(72 psi g)
0 ... 1.6 bar g(0 ... 23.2 psi g) -0,4 bar g (-5.8 psi g) 3,2 bar g (45 psi g)5 bar g(72 psi g)
0 ... 2.5 bar g(0 ... 36.3 psi g) -0,8 bar g (-11.6 psi g) 5bar g(72 psi g)12 bar g(175 psi g)
0 ... 4 bar g(0 ... 58.0 psi g) -0,8 bar g (-11.6 psi g) 8bar g(115 psi g) 12 bar g(175 psi g)
0 ... 6 bar g(0 ... 87.0 psi g) -1 bar g(-14.5 psi g) 12 bar g(175 psi g) 25 bar g(360 psi g)
0 ... 10 bar g(0 ... 145 psi g)-1 bar g(-14.5 psi g) 20 bar g(290 psi g) 50 bar g(725 psi g)
0 ... 16 bar g(0 ... 232 psi g)-1 bar g(-14.5 psi g) 32 bar g(460 psi g) 50 bar g(725 psi g)
0 ... 25 bar g(0 ... 363 psi g)-1 bar g(-14.5 psi g) 50 bar g(725 psi g) 120 bar g (1750 psi g)
0 ... 40 bar g(0 ... 580 psi g)-1 bar g(-14.5 psi g) 80 bar g(1150 psi g) 120 bar g (1750 psi g)
0 ... 60 bar g(0 ... 870 psi g)-1 bar g(-14.5 psi g) 120 bar g (1750 psi g) 250 bar g (3600 psi g)
0 ... 100 bar g(0 ... 1450 psi g) -1 bar g(-14.5 psi g) 200 bar g (2900 psi g) 450 bar g (6525 psi g)
0 ... 160 bar g(0 ... 2320 psi g) -1 bar g(-14.5 psi g) 320 bar g (4640 psi g) 450 bar g (6525 psi g)
0 ... 250 bar g(0 ... 3626 psi g) -1 bar g(-14.5 psi g) 500 bar g (7250 psi g) 650 bar g (9425 psi g)
0 ... 400 bar g(0 ... 5802 psi g) -1 bar g(-14.5 psi g) 600 bar g (8700 psi g) 650 bar g (9425 psi g)
Other version for measuring range ≥ 1 bar g (≥ 14.5 psi g), add Order code and plain text:
measuring range: ... up to... bar (psi g)
For absolute pressure
0 ... 600 mbar a (0 ... 8.7 psi a)0 bar a(0 psi a)3bar a(43.5 psi a) 5bar a(72 psi a)}J)
0 ... 1 bar a(0 ... 14.5 psi a)0 bar a(0 psi a)2bar a(30 psi a)5bar a(72 psi a)}J)
0 ... 1.6 bar a(0 ... 23.2 psi a)0 bar a(0 psi a)3,2 bar a (45 psi a)5bar a(72 psi a)}J)
0 ... 2.5 bar a(0 ... 36.3 psi a)0 bar a(0 psi a)5bar a(72 psi a)12 bar a(175 psi a)}J)
0 ... 4 bar a(0 ... 58.0 psi a)0 bar a(0 psi a)8bar a(115 psi a) 12 bar a(175 psi a)}J)
0 ... 6 bar a(0 ... 87.0 psi a)0 bar a(0 psi a)12 bar a(175 psi a) 25 bar a(360 psi a)}J)
0 ... 10 bar a(0 ... 145 psi)0 bar a(0 psi a)20 bar a(290 psi a) 50 bar a(725 psi a)}J)
0 ... 16 bar a(0 ... 232 psi)0 bar a(0 psi a)32 bar a(460 psi a) 50 bar a(725 psi a)}J)
Other version for measuring range < 1 bar (< 14.5 psi a), add Order code and plain text:
measuring range: ... up to ... mbar a (psi a)
} Available ex stockD) Subject to export regulations AL: N, ECCN: EAR99H.
J) Subject to export regulations AL: 9I999, ECCN: EAR99.
1)
The transmitters can also be ordered with special measuring ranges, e.g. the transmitter with the 1 bar measuring cell (14.5 psi measuring cell):
-0.2 ... +0.8 bar g (-2.9 ... +11.6 psi g) or
-0.4 ... +0.6 bar g (-5.8 ... +8.7 psi g) or ..., however start-of-scale value not under -0.4 bar g (-5.8 psi g), also see column "min. perm. operating pressure"
Please note:
• It is not possible to have a smaller span than the smallest span of the device of the entire device range.
• The value must not fall below the minimum permissible operating pressure of the special measuring range of the selected
measuring cell.
• The required span of the device must lie between the smallest and the largest possible span of the entire device range.
Other version, add Order code and plain text: Measuring range: ... up to ... psi a
Output signal
4 ... 20 mA;C 2-wire system; power supply 10 ... 36 V DC}0
0 ... 10 V; 3-wire system; power supply 15 ... 36 V DC1 0
Explosion protection
Without}0
With explosion protection Ex II 1/2 G EEx ia IIC T4 (only for version 4 ... 20 mA; 2-wire system;
power supply 10 ... 30 V DC)
With explosion protection "Intrinsic safety T.I.I.S." (available soon)2
Electrical connection
Plug to DIN 43650, Form A, cable inlet M16 x 1.5}1
Round connector M12, IP672
Plug to DIN 43650, cable inlet ½-14 NPT3
Plug to DIN 43650, cable inlet Pg114
Cable gland Pg11 with 2 m PE cable, IP686
Special version (specify Order code and plain text)9N 1 Y
} Available ex stockD) Subject to export regulations AL: N, ECCN: EAR99H.
J) Subject to export regulations AL: 9I999, ECCN: EAR99.
Transmitters for gage, absolute and differential pressure
Z series for gage and absolute pressure
Selection and Ordering dataOrder No.Order code
■
SITRANS P pressure transmitters for pressure, series Z for pressure and absolute pressure
2 or 3-wire system, rising characteristic curve
Process connection
G½" male to EN 837-1 (½" BSP male) (standard for metric pressure ranges mbar, bar)}A
G½" male thread and G1/8" female threadB
G¼“ male to EN837-1 (¼“ BSP male)C
7/16"-20 UNF maleD
¼"-18 NPT male (standard for pressure ranges psi)E
¼"-18 NPT femaleF
½"-14 NPT maleG
½"-14 NPT femaleH
RC ½" male to JIS B 7505K
G1" male (only for measuring ranges ≥ 1 bar g (14.5 psi g)) and max. permissible working pressure
100 bar g (1450 psi g)
Special version (specify Order code and plain text)ZP 1 Y
Sealing material between sensor and housing
Viton (standard)}A
NeopreneB
PerbunanC
Special version (specify Order code and plain text)ZQ 1 Y
Further designsOrder code / Order No.
Quality inspection certificate (Factory calibration) to IEC 60770-2,
add "-Z" to Order No. and Order code.
Oxygen version, oil and grease-free cleaning (only if the sealing material between sensor and housing is
Viton and only for measuring ranges ≥ 1 bar g (≥ 14.5 psi g)
and ≥ 1 bar a (≥ 14.5 psi a)
AccessoriesOrder No.
Quality inspection certificate (Factory calibration) to IEC 60770-2 supplied later,
specify factory no. of transmitter.
} Available ex stockD) Subject to export regulations AL: N, ECCN: EAR99H.
Transmitters for gage, absolute and differential pressure
SITRANS P250 for differential pressure
■
Overview
SITRANS P250 transmitter for differential pressure
The SITRANS P250 transmitter measures the differential pres-
sure of liquids and gases.
■
Benefits
• High measuring accuracy
• Sturdy stainless steel enclosure
• For aggressive and non-aggressive media
• For the measurement of the differential pressure of liquids and
gases
• Temperature-compensated measuring cell
• Compact design
■
Application
The SITRANS P250 transmitter for differential pressure is primarily used in the following industries:
• Chemical industry
• Pharmaceutical industry
• Food industry
• Mechanical engineering
• Shipbuilding
• Water supply
■
Design
Main components:
• Stainless steel enclosure with piezo-resistive ceramic measur-
ing cell and (temperature-compensated) electronics module.
• Process connection made of stainless steel in diverse designs
(see Selection and ordering data)
• Electrical connection through connectors acc. to EN 175301-
803-A and round connectors M12, as well as with permanently
fixed cable
■
Function
The pressure transmitter measures the differential pressure of
liquids and gases.
Mode of operation
p1p
2
U
const.
U
I
SITRANS P250 pressure transmitter, function diagram
The piezo-resistive ceramic measuring cell (membrane) has a
Wheatstone bridge circuit, on which the operating pressure P1
and P2 of the media acts at both ends.
The voltage output from the measuring cell is converted by an
amplifier into an output current of 4 to 20 mA or an output voltage
of 0 to 5 or 10 V DC.
The output current and voltage are linearly proportional to the input pressure.
3 keysConfiguring of parameters
A/DAnalog-to-digital converter
D/ADigital-to-analog converter
EEPROMMemory for all parameters
EMCOutputstage with protective components
I
A
Outputcurrent
U
ref
Reference voltage
LCDDisplay of measured values with dimensions
Green LEDDisplay of normal mode
Red LEDDisplay of error messagesor limitviolation
PCeramic measuring cell
U
H
Power supply
µCMicrocontroller for computing functions and monitoring
Transmitters for gage, absolute and differential pressure
ZD series for gage and absolute pressure
■
Overview
SITRANS P pressure transmitters, ZD series, are for measuring
the gage pressure, absolute pressure and level of liquids and
gases.
They are used to indicate and monitor the pressure measured at
the point of installation. ZD pressure transmitters are available in
an axial and a radial version.
At the rear of the housing is the electrical connection for the voltage supply using a current loop 4 ... 20 mA. The connection is
made with a plug connector.
At the front of the housing is the 5-digit display behind a glass
cover. Underneath the display are the 3 keys for parameterizing
the pressure transmitter. Above the display are a green and a red
LED for indicating the operating status.
The ZD pressure transmitter is available in two versions (see "Dimension drawing"):
In the radial version (type A) the display is fitted in parallel with
the process connection. The display can be rotated by up to
±120° relative to the process connection.
In the axial version (type B) the display is at right angles to the
process connection. The display can be rotated by 360° relative
to the process connection.
■
Function
2
■
Benefits
• Robust stainless steel housing with 2 connection versions
• Integrated display with status messages
• Thin-film measuring cell with ceramic diaphragm
• 2-wire system, 4 ... 20 mA
• Parameterizable using keys underneath the housing cover
• Range adjustment 1:5 (max. 1:10)
• Measuring accuracy < 0.25% (typical)
■
Application
The ZD is a configurable pressure transmitter for measuring the
gage and absolute pressure of gases, liquids and vapor.
It is equipped with a display for indicating the pressure value at
the point of installation.
SITRANS P pressure transmitters, ZD series, are used in the fol-
lowing industrial areas for example:
• Chemical industry
• Mechanical engineering
• Food industry
• Pharmaceutical industry
• Shipbuilding
• Water supply
■
Design
The pressure transmitter is comprised of a thin-film measuring
cell with a ceramic diaphragm, an electronics board and a digi-
tal indicator.
All parts are accommodated in a stainless steel field housing
(∅ 80 mm) with a glass cover and stainless steel process con-
nection.
SITRANS P pressure transmitters, ZD series, mode of operation
Mode of operation
The ZD pressure transmitter has a thin-film strain gage which is
mounted on a ceramic diaphragm.
The measuring cell is temperature-compensated.
Functions
The ZD pressur
e transmitter has a 5-digit display behind a glass
cover. The following data are shown on the display:
Transmitters for gage, absolute and differential pressure
ZD series for gage and absolute pressure
Selection and Ordering dataOrder No. Ord. Code
SITRANS P pressure transmitters, ZD
series for gage and absolute pressure
Conformity error 0.25%, range adjustment
1 : 5 (max. 1 : 10), housing and process
connection made of stainless steel,
membrane made of ceramic, 2-wire system,
output 4 ... 20 mA
Input variable
Gage pressure} 1
Absolute pressure}F)2
Measured rangeSpan
0 ... 2 bar
(0 ... 29 psi)
0 ... 10 bar
(0 ... 145 psi)
0 ... 50 bar
(0 ... 725 psi)
0 ... 200 bar
(0 ... 2900 psi)
0 ... 400 bar
(0 ... 5800 psi)
Other version (on request)
add Order Code and plain text:
Process connection: ............
Process connection
G½B male thread and G1/8B female thread }A
G½B to EN 837-1
Female thread ½-14 NPT
G 1“ male thread
Design
Process connection vertically downwards,
thread in connector M16x1.5
Process connection horizontally to rear,
thread in connector M16x1.5
Process connection vertically downwards,
thread in connector ½"-14 NPT
Process connection horizontally to rear,
thread in connector ½"-14 NPT
0 ... 0.4 / 2 bar
(0 ... 5.8 / 29 psi)
0 ... 2 / 10 bar
(0 ... 5.8 / 145 psi)
0 ... 10 / 50 bar
(0 ... 145 / 725 psi)
0 ... 40 / 200 bar
(0 ... 580 / 2900 psi)
0 ... 80 / 400 bar
(0 ... 1160 / 5800 psi)
7M F 1 5 8 0 -
7 7 7 7
0
}D
}E
}F
}G
}H
ZJ 1 Y
F)
B
F)
C
F)
M
}1
2
}3
4
7 7 7
Selection and Ordering dataOrder Code
Further designs
Please add "Z" to Order No. and specify Order
code(s) and plain text.
Quality inspection certificate (Factory calibration) to IEC 60770-2 supplied
Factory certificate
to EN 10204-2.2 supplied
Oxygen application, oil and grease-free
cleaned
(only in conjunction with the sealing material
Viton between sensor and enclosure and only
in conjunction with measuring ranges >= 1
bar g and 1 bar abs)
Sealing material FEP between sensor and
housing, instead of Viton
max. operating pressure 15 bar (218 psi),
max. measuring temperature -10 ... +50 °C
Additional data
Please add "Z" to Order No. and specify Order
code(s) and plain text.
Measuring range to be set,
specify in plain text:
Y01: ... up to ... mbar, bar, kPa, MPa, psi
TAG number made of stainless steelY1 5
AccessoriesOrder No.
Quality inspection certificate (Factory
calibration) to IEC 60770-2
specify factory of transmitter.
supplied later,
C1 1
C1 4
E1 0
E2 0
Y0 1
7MF1564-8CC11
} Available ex stock
F) Subject to export regulations AL: 9I999, ECCN: N.
Transmitters for food, pharmaceuticals and biotechnology
■
Overview
The SITRANS P Compact pressure transmitter is designed for
the special requirements of the food, pharmaceutical and biotechnology industries.
The use of high-grade materials guarantees compliance with hygiene regulations.
Particular value has been placed on a high surface quality. It is
therefore possible, for example, to guarantee roughness values
down to R
(welded seam area R
can be electropolished in addition.
A further important feature is the hygiene-based design of the
process connection by means of various aseptic connections.
The completely welded stainless steel housing can be designed
up to degree of protection IP67.
Using appropriate thermal decouplers, the SITRANS P Compact
pressure transmitter can be used for process temperatures up to
200 °C (392 °F).
■
Benefits
• Measuring ranges from 0 to 160 mbar (0 to 2.32 psi) to 0 to
40 bar (0 to 580 psi)
• Linearity error including hysteresis < +0.2% of full-scale value
• Piezo-resistive measurement system, vacuum-proof and overload-proof
• Hygiene-based design according to EHEDG, FDA and GMP
recommendations
• Material and surface quality according to hygiene requirements
• Wetted parts made of stainless steel; completely welded
• Signal output 4 to 20 mA (0 to 20 mA as option)
• Stainless steel housing with degree of protection IP65 (IP67 as
option)
• Process temperature up to 200 °C (392 °F)
• Explosion protection II 2G EEx [ib] IIC T6 to ATEX
• Easy and safe to clean
=0.4μm (1.57 ⋅ 10-5inch) in the wetted area
a
<0.8μm (3.15 ⋅ 10-5inch)). The system
a
SITRANS P Compact
for gage and absolute pressure
■
Application
The SITRANS P Compact pressure transmitter is designed for
the special requirements of the food, pharmaceutical and biotechnology industries.
The use of high-grade materials guarantees compliance with hygiene regulations.
The SITRANS P Compact pressure transmitter is available in
many versions. Exact adaptation of the pressure transmitter to
conditions at the place of use is thus possible
■
Design
The electronics is potted to protect it against moisture, corrosive
atmospheres and vibration.
Notes on operating the pressure transmitter
Compensation of internal atmospheric pressure
Compensation of the internal atmospheric pressure of the
SITRANS P Compact pressure transmitters is performed as follows:
• in the plug versions by means of the screwed gland (IP65)
• in the field housings by means of an integral sintered filter
(IP65) or a vented cable (IP67)
• in versions with cable outlet by means of a vented cable (IP67)
In the absolute pressure range there is no need for compensation with respect to atmospheric pressure.
Note: These degrees of protection are only achieved under the
following conditions:
• if the pressure transmitter is installed correctly
• if the screwed glands are securely tightened
• if the cable diameters agree with the nominal diameters of the
gaskets in the housing
Note: The integral EMC measures are only effective if the earth
connection is made correctly.
CE marking
The CE marking of the pressure transmitter certifies compliance
with the guidelines of the European Council (9/336/EC), the EMC
law (13.11.1992), as well as the applicable generic standards.
Interference-free operation in systems and plants is achieved
only if the specifications for shielding, earthing, cable routing
and electrical isolation are observed during installation and assembly.
Hazardous areas
Note: Electrical equipment in hazardous areas must only be in-
stalled and operated by trained personnel.
Modifications to units and connections result in cancellation of
the explosion protection and guarantee.
With intrinsically-safe circuits, make sure that equipotential
bonding exists throughout the complete cabling inside and outside of the hazardous area. The limits specified in the ATEX approval must be observed.
Transmitters for food, pharmaceuticals and biotechnology
SITRANS P Compact
for gage and absolute pressure
■
Function
The process pressure acts on a piezo-resistive semiconductor
measuring bridge through a remote seal and a transmission liquid. The pressure transmitter converts the pressure values into a
load-independent current.
A compensation network makes the output signal largely independent of the ambient temperature. As a result of a specially
adapted remote seal connection with minimized volume, the influence of the process temperature on the output signal is
greatly reduced compared to a conventional screw connection.
The pressure transmitters can be powered with a non-regulated
DC voltage of 10 to 30 V. Output signals common to measuring
technology are available.
■
Technical specifications
Pressure transmitters for food, pharmaceuticals and biotechnology
Mode of operation
• Three-wire system0 ... 20 mA
Measuring accuracyTo EN 60770-1
Linearity error including hysteresis
(reference point adjustment)
Adjustment accuracy≤± 0.2% of full-scale value
Adjustment time< 20 ms
Influence of ambient temperature
On th enclosure
• Zero< 0.2%/10 K of full-scale value
• Measured span< 0.2%/10 K of full-scale value
On the process connection (remote
seal)
• Flange remote seal
- DN 25 / 1"4.8 mbar/10 K (0.070 psi/10 K)
- DN 32 / 1¼”2.3 mbar/10 K (0.033 psi/10 K)
- DN 40 / 1½”1.6 mbar/10 K (0.023 psi/10 K)
- DN 50 / 2"0.6 mbar/10 K (0.009 psi/10 K)
• Clamp-on seal
- DN 25 / 1"9.5 mbar/10 K (0.138 psi/10 K)
- DN 32 / 1¼”4.1 mbar/10 K (0.060 psi/10 K)
- DN 40 / 1½”3.9 mbar/10 K (0.057 psi/10 K)
- DN 50 / 2"3.9 mbar/10 K (0.057 psi/10 K)
The zero error specified for the process connection should be considered as a guideline for a standard design. We will produce a detailed
system calculation on request. Systems with reduced remote seal errors
are available on request.
...
0 ... 40 bar (0 ... 580 psi)
≤ 0.2% of full-scale value
Zero error (depends on design)
Rated conditions
Installation conditions
• Mounting positionAny, vertical as standard
Ambient conditions
• Ambient temperature-10 ... +70 °C (14 ... 158 °F)
• Storage temperature-10 ... +90 °C (14 ... 194 °F)
• Process temperatureMax. 200 °C (392 °F), depends
• Degree of protection (to EN 60529) IP65, optional IP67
• Electromagnetic compatibility
- Emitted interferenceTo EN 50081 Part 1, issue 1993
- Interference immunity toEN 50082 Part 2, issue March
Design
Weight (without remote seal)
• Field housing≈ 460 g (≈ 1.01 lb)
• Housing with plug≈ 200 g (≈ 0.44 lb)
Housing
• Designs• Field housing IP65 or IP67, with
• MaterialStainless steel, mat.
Material of union nutPolyamide (with electrical con-
Process connection
• VersionsSee Ordering data
• Material of couplingStainless steel, mat.
Power supply
Terminal voltage on transmitter10 ... 30 V DC
Rated voltage24 V DC
Certificate and approvals
Classification according to pressure
equipment directive
(DRGL 97/23/EC)
Explosion protection
• Intrinsic safety "i"TÜV 03 ATEX 2099 X
- IdentificationEx II 2G EEx ib IIC T6
on design
(residential and industrial areas).
The unit has no own emissions.
1995 (industrial areas)
screwed gland
• Angled plug DIN 43650, IP65
• Cable connection, IP67
• Round plug connector M12,
IP65
No. 1.4404/1.4305
nection using plug or cable)
Electronics unit potted with sili-
cone
Internal ventilation for measuring
ranges < 16 bar (< 232 psi),
through housing thread or connection cable depending on
design
No. 1.4404/316L
For gases of fluid group 1 and liquids of fluid group 1; complies
with the requirements of article 3,
paragraph 1 (appendix 1);
assigned to category III, conformity evaluation module H by the
TÜV Nord
Transmitters for food, pharmaceuticals and biotechnology
SITRANS P300 for gage and absolute pressure
■
Overview
The SITRANS P300 is a digital pressure transmitter for gage and
absolute pressure. All conventional thread versions are available
as process connections. In addition, various hygiene-based
connections and flange connections with front-flush diaphragms
meet the requirements of a dead space free process connection.
The output signal is a load-independent direct current from 4 to
20 mA or a PROFIBUS PA signal, which is linearly proportional to
the input pressure. Communication is over HART protocol or
over PROFIBUS PA interface. Convenient buttons for easy local
operation of the basic settings of the pressure transmitter.
The SITRANS P300 has a single-chamber stainless steel casing.
The pressure transmitter is approved with "intrinsically safe" type
of protection It can be used in zone 1 or zone 0.
■
Benefits
• High quality and long life
• High reliability even under extreme chemical and mechanical
loads
• Extensive diagnosis and simulation functions
• Minimum conformity error
• Small long-term drift
• Wetted parts made of high-grade materials (such as stainless
steel, Hastelloy)
• Measuring range 8 mbar to 400 bar
• High measuring accuracy
• Parameterization over control keys and HART communication
or PROFIBUS PA communication
■
Application
The pressure transmitter is available in versions for gage pressure and for absolute pressure. The output signal is always a
load-independent direct current from 4 to 20 mA or a
PROFIBUS PA signal, which is linearly proportional to the input
pressure. The pressure transmitter measures aggressive, nonaggressive and hazardous gases, as well as vapors and liquids.
It can be used for the following measurement types:
• Gage pressure
• Absolute pressure
With appropriate parameter settings, it can also be used for the
following additional measurement types:
• Level
• Volume
• Mass
The "intrinsically-safe" EEx version of the transmitter can be in-
stalled in hazardous areas (zone 1). The transmitters are provided with an EC type examination certificate and comply with
the respective harmonized European standards of ATEX.
Gage pressure
This variant measures aggressive, non-aggressive and hazardous gases, vapors and liquids.
The smallest measuring span is 10 mbar g, the largest 400 bar g.
Level
With appropriate parameter settings, the gage pressure variant
measures the level of aggressive, non-aggr
ous liquids.
For measuring the level in an open container you require one device; for measuring the level in a closed container, you require
two devices and a process control system.
Absolute pressure
This variant measures the absolute pressure of aggressive, nonaggressive and hazardous gases, vapors and liquids.
The smallest measuring span is 8 mbar a, the largest 30 bar a.
essive and hazard-
2/28
Siemens FI 01 · 2009
■
IA,U
H
5
6
7
8
P
e
1
4
3
2
C
m
M
10
00000
00
9
6
1Measuring cell sensor
2 Instrument amplifier
3 Analog-to-digital converter
4Microcontroller
5 Digital-to-analog converter
6One non-volatile memory each in the measuring cell and electronics
7 HART interface
8 Three input keys (local operation)
9 Digital display
10 Diode circuit and connection for external ammeter
Transmitters for food, pharmaceuticals and biotechnology
SITRANS P300 for gage and absolute pressure
■
Function
Operation of the electronics with HART communication
2
Perspective view of the SITRANS P300
The housing has a screw-on cover (3), with or without an inspection window depending on the version. The electrical terminal
housing, the buttons for operation of the device and, depending
on the version, the digital display are located under this cover.
The connections for the auxiliary power UH and the shield are in
the terminal housing. The cable gland is mounted on the side of
the housing. The measuring cell with the process connection (5)
is located on the underside of the housing. Depending on the
version of the device, the measuring cell with the process connection may differ from the one shown in the diagram.
Function diagram of electronics
The input pressure is converted into an electrical signal by the
sensor (1). This signal is amplified by the measuring amplifier (2)
and digitalized in an analog to digital converter (3). The digital
signal is analyzed in a microcontroller (4) and corrected with regard to linearity and thermal characteristics. In a digital to analog converter (5) it is then converted into the output current of 4
to 20 mA. A diode circuit provides reverse voltage protection.
You can make an uninterrupted current measurement with a lowohm ammeter at the connection (10). The data specific to the
measuring cell, the electronic data and parameter settings are
stored in two non-volatile memories (6). The first memory is
linked with the measuring cell, the second with the electronics.
The buttons (8) can be used to call up individual functions, socalled modes. If you have a device with a digital display (9), you
can use this to track mode settings and other messages. The basic mode settings can be changed with a computer via the HART
modem (7).
Transmitters for food, pharmaceuticals and biotechnology
SITRANS P300 for gage and absolute pressure
Operation of the electronics with PROFIBUS PA communication
Mode of operation of the FOUNDATION Fieldbus
electronics
Function diagram of electronics
The input pressure is converted into an electrical signal by the
sensor (1). This signal is amplified by the measuring amplifier (2)
and digitalized in an analog to digital converter (3). The digital
signal is analyzed in a microcontroller (4) and corrected with regard to linearity and thermal characteristics. It is then made
available at the PROFIBUS PA over an electrically isolated
PROFIBUS PA interface (7). The data specific to the measuring
cell, the electronic data and parameter settings are stored in two
non-volatile memories (6). The first memory is linked with the
measuring cell, the second with the electronics.
The buttons (8) can be used to call up individual functions, socalled modes. If you have a device with a digital display (9), you
can use this to track mode settings and other messages. The basic mode settings can be changed with a computer over the bus
master (12).
2/30
Siemens FI 01 · 2009
Function diagram of electronics
The bridge output voltage created by the sensor (1, Figure
"Function diagram of electronics") is amplified by the instrument
amplifier (2) and digitized in the analog-to-digital converter (3).
The digital information is evaluated in the microcontroller, its linearity and temperature response corrected, and provided on the
FOUNDATION Fieldbus through an electrically isolated
FOUNDATION Fieldbus Interface (7).
The data specific to the measuring cell, the electronics data, and
the parameter data are stored in the two non-volatile memories
(6). The one memory is coupled to the measuring cell, the other
to the electronics. As the result of this modular design, the electronics and the measuring cell can be replaced separately from
each other.
Using the three input keys (8) you can parameterize the pressure
transmitter directly at the point of measurement. The input keys
can also be used to control the view of the results, the error messages and the operating modes on the digital display (9).
The results with status values and diagnostic values are transferred by cyclic data transmission on the FOUNDATION
Fieldbus. Parameterization data and error messages are transferred by acyclic data transmission. Special software such as
National Instruments Configurator is required for this.
Mode of operation of the measuring cells
The process connections available include the following:
•G½
• ½-14 NP
T
• Front-flush diaphragm:
- Flanges to EN
- Flanges to ASME
- NuG and pharmaceutical connections
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