Siemens SITRANS DA400 User manual

Introduction
1
General safety notes
2
Description
3
Mounting
4
Connecting
5
Operation
6
Signal processing
7
Commissioning
8
Technical Data
9
Dimension drawings
10
PROFIBUS PA
11
SITRANS
Process monitoring
SITRANS DA400 for oscillating
positive displacement pumps with
protection against explosion
Operating Instructions
10/2007
A5E00841127-01
7MJ2400-2BA01 Device with protection against explosion
7MJ2000-1B*00 Sensor with protection against explosion

Safety Guidelines
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.
CAUTION
without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.
NOTICE
indicates that an unintended result or situation can occur if the corresponding information is not taken into
account.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The device/system may only be set up and used in conjunction with this documentation. Commissioning and
operation of a device/system may only be performed by qualified personnel. Within the context of the safety notes
in this documentation qualified persons are defined as persons who are authorized to commission, ground and
label devices, systems and circuits in accordance with established safety practices and standards.
Prescribed Usage
Note the following:
WARNING
This device may only be used for the applications described in the catalog or the technical description and only
in connection with devices or components from other manufacturers which have been approved or
recommended by Siemens. Correct, reliable operation of the product requires proper transport, storage,
positioning and assembly as well as careful operation and maintenance.
Trademarks
All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this
publication may be trademarks whose use by third parties for their own purposes could violate the rights of the
owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.
Siemens AG
Automation and Drives
Postfach 48 48
90327 NÜRNBERG
GERMANY
Ordernumber: A5E00841127
Ⓟ 10/2007
Copyright © Siemens AG 2007.
Technical data subject to change

SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
Operating Instructions, 10/2007, A5E00841127-01 3
Table of contents
1 Introduction................................................................................................................................................ 7
1.1 Purpose of this documentation ......................................................................................................7
1.2 History............................................................................................................................................7
1.3 Further information.........................................................................................................................7
1.4 CE label..........................................................................................................................................8
2 General safety notes.................................................................................................................................. 9
2.1 General information .......................................................................................................................9
2.2 Correct usage.................................................................................................................................9
2.3 Laws and directives .......................................................................................................................9
2.4 Measures .....................................................................................................................................10
2.5 Qualified Personnel......................................................................................................................10
3 Description............................................................................................................................................... 11
3.1 Applications..................................................................................................................................11
3.2 Operation .....................................................................................................................................11
3.3 Layout ..........................................................................................................................................12
3.3.1 Device structure ...........................................................................................................................12
3.3.2 Structure of the nameplate...........................................................................................................13
3.4 Mode of operation ........................................................................................................................14
3.4.1 Measuring principle......................................................................................................................14
3.4.2 Sensor operation..........................................................................................................................16
3.4.3 Operation of the electronics.........................................................................................................17
4 Mounting.................................................................................................................................................. 19
4.1 Safety information for installation.................................................................................................19
4.2 Mounting the device.....................................................................................................................19
4.3 Installation notes for acoustic emission sensors..........................................................................20
5 Connecting .............................................................................................................................................. 21
5.1 Safety notes and conditions.........................................................................................................21
5.2 Terminal assignment....................................................................................................................22
5.3 Cable gland..................................................................................................................................23
5.4 Connecting structure-borne sound sensors.................................................................................24
5.5 Connecting the digital outputs......................................................................................................25
5.6 Connecting signal inputs..............................................................................................................25
5.7 Connect PROFIBUS PA ..............................................................................................................27

Table of contents
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
4 Operating Instructions, 10/2007, A5E00841127-01
5.8 Connecting the power supply...................................................................................................... 28
5.9 Connect the ground..................................................................................................................... 29
6 Operation................................................................................................................................................. 31
6.1 Overview of digital display and buttons....................................................................................... 31
6.2 Digital display .............................................................................................................................. 32
6.3 Measuring menu ......................................................................................................................... 33
6.3.1 Overview and digital display in the measuring menu.................................................................. 33
6.3.2 Measurement channel list ........................................................................................................... 34
6.3.3 Operating the measuring menu .................................................................................................. 34
6.3.4 Acoustic channels ....................................................................................................................... 35
6.3.4.1 Measuring mode ......................................................................................................................... 35
6.3.4.2 Simulation mode ......................................................................................................................... 36
6.3.4.3 Test mode ................................................................................................................................... 38
6.3.5 Universal inputs........................................................................................................................... 40
6.3.5.1 Analog input ................................................................................................................................ 40
6.3.5.2 Digital input ................................................................................................................................. 41
6.4 Parameter menu ......................................................................................................................... 42
6.4.1 Parameter menu overview .......................................................................................................... 42
6.4.2 Parameter list .............................................................................................................................. 43
6.4.3 Setting parameters...................................................................................................................... 45
6.4.4 Displaying the software version .................................................................................................. 46
6.4.5 Parameter lock ............................................................................................................................ 46
6.5 Trace menu ................................................................................................................................. 47
6.5.1 Trace menu overview.................................................................................................................. 47
6.5.2 Trace menu list............................................................................................................................ 47
6.5.3 Displaying and resetting timers................................................................................................... 49
6.6 Examples..................................................................................................................................... 50
6.6.1 Example Acoustic channel 1....................................................................................................... 50
6.6.2 Example universal input 1........................................................................................................... 51
7 Signal processing .................................................................................................................................... 53
7.1 Evaluating acoustic channels...................................................................................................... 53
7.2 Evaluation of universal inputs ..................................................................................................... 56
7.2.1 Universal input evaluation overview............................................................................................56
7.2.2 Evaluation of analog current signals ...........................................................................................56
7.2.3 Evaluation of 24 V digital signals ................................................................................................ 57
7.2.4 Processing input faults ................................................................................................................ 58
7.2.5 Activation of digital outputs ......................................................................................................... 59
7.3 Trace function ............................................................................................................................. 61
7.4 Alarm acknowledgement............................................................................................................. 63
8 Commissioning ........................................................................................................................................ 65
8.1 Overview ..................................................................................................................................... 65
8.2 Recommendation for the selection of parameters ...................................................................... 66
8.2.1 Preparation.................................................................................................................................. 66
8.2.2 Measuring sensitivity of the acoustic channels via parameters P.1 to P.4. ................................ 67
8.2.3 Main alarm threshold via parameters P.6, P.8, P.10 and P.12................................................... 67
8.2.4 Pre-alarm threshold via parameters P.5, P.7, P.9 and P.11....................................................... 67
8.2.5 Response time via parameter P.13............................................................................................. 68

Table of contents
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
Operating Instructions, 10/2007, A5E00841127-01 5
8.2.6 Alarm storage via parameter P.14 ...............................................................................................68
8.2.7 Application via parameter P.39....................................................................................................68
8.2.8 Number of strokes of the pump via parameter P.40....................................................................69
8.2.9 Check installation and configuration ............................................................................................69
8.2.10 Commissioning after a repair.......................................................................................................69
9 Technical Data......................................................................................................................................... 71
9.1 Device technical data...................................................................................................................71
9.2 Application-specific use limits ......................................................................................................75
9.3 Sensor technical data ..................................................................................................................75
10 Dimension drawings ................................................................................................................................ 77
10.1 Dimension drawing of the device.................................................................................................77
10.2 Dimension drawing of the sensor.................................................................................................78
11 PROFIBUS PA ........................................................................................................................................ 79
11.1 System integration .......................................................................................................................79
11.2 Projection .....................................................................................................................................79
11.3 Expanded diagnosis.....................................................................................................................82
Index........................................................................................................................................................ 85

Table of contents
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
6 Operating Instructions, 10/2007, A5E00841127-01

SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
Operating Instructions, 10/2007, A5E00841127-01 7
Introduction 1
1.1 Purpose of this documentation
These instructions contain all the information you need for commissioning and using the
device.
It is aimed both at persons mechanically installing the device, connecting it electronically,
configuring the parameters and commissioning it as well as service and maintenance
engineers.
1.2 History
This history establishes the correlation between the current documentation and the valid
firmware of the device.
The documentation of this edition is applicable for the following firmware:
Edition Firmware ID System integration Installation path for PDM
01
10/2007
FW: V2.01.00 PDM V6.0
DD Rev. 30.301.1
SITRANS DA400
The most important changes in the documentation when compared with the respective
previous edition are given in the following table.
Edition Remark
01
10/2007
First edition
1.3 Further information
Information
The contents of these instructions shall not become part of or modify any prior or existing
agreement, commitment or legal relationship. All obligations on the part of Siemens AG are
contained in the respective sales contract which also contains the complete and solely
applicable warranty conditions. Any statements contained herein do not create new
warranties or modify the existing warranty.

Introduction
1.4 CE label
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
8 Operating Instructions, 10/2007, A5E00841127-01
The content reflects the technical status at the time of printing. We reserve the right to make
technical changes in the course of further development.
Worldwide contact person
If you need more information or have particular problems which are not covered sufficiently
by the operating instructions, get in touch with your contact person. You can find contact
information for your local contact person in the Internet.
Product information on the Internet
The Programming Manual is an integral part of the companion CD, which may be ordered
separately. In addition, the Programming Manual is available on the Internet on the Siemens
homepage.
On the CD you will also find the technical data sheet containing the ordering data, the Device
Install software for SIMATIC PDM for subsequent installation and the required software.
See also
Contacts (http://www.siemens.com/processinstrumentation/contacts)
Product information on SITRANS DA in the Internet (http://www.siemens.com/sitransda)
Instructions and Manuals (http://www.siemens.com/processinstrumentation/documentation)
1.4 CE label
This device meets the requirement of EU guidelines:
● 89/336/EEC Guideline of the Council on Aligning Legal Regulations of Member States on
Electromagnetic Compatibility (EMV). Revised by
– 91/263/EEC
– 92/31/EEC
– 93/68/EEC
● 94/9/EC Guideline of the European Parliament and the Council on Aligning Legal
Regulations of the Member States on Devices and Protective Systems for defined use in
areas subject to explosion.
This is communicated by the CE label.
D-76181 Karlsruhe

SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
Operating Instructions, 10/2007, A5E00841127-01 9
General safety notes 2
2.1 General information
This device left the factory free from safety problems. In order to maintain this status and to
ensure safe operation of the device, please observe the safety information and warnings
contained in these instructions.
2.2 Correct usage
The device may only be used for the purposes specified in these instructions.
Insofar as they are not expressly stated in these instructions, all changes to the device are
the sole responsibility of the user.
2.3 Laws and directives
The regulations of the test certification valid in your country are to be observed.
Electrical connection in hazardous zones with explosive atmospheres
The national directives and laws for hazardous areas valid in your country must be observed
for electrical connection. For example, in Germany these are:
● Operational safety regulations
● Directive for the installation of electrical systems in hazardous areas DIN EN 60079-14
(previously VDE 0165, T1)

General safety notes
2.4 Measures
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
10 Operating Instructions, 10/2007, A5E00841127-01
2.4 Measures
For the sake of safety, the following precautions must be observed:
WARNING
"Intrinsically safe" protection type
"Intrinsically-safe" devices lose their certification as soon as they are operated on circuits
which do not correspond with the test certification valid in their country. The device's
protection level "ia" is reduced to "ib" when intrinsically safe electrical circuits with
protection level "ib" are connected.
Protection type "limited energy" nL (zone 2)
Devices with "limited energy" may be connected and disconnected while in operation.
Protection type "non-sparking" nA (zone 2)
Devices with "non-sparking" protection may only be connected and disconnected when off
circuit.
CAUTION
Electrostatic Sensitive Devices (ESD)
This device contains electrostatic sensitive devices. Electrostatic sensitive devices may be
destroyed by voltages that are undetectable to a human. Voltages of this kind occur as
soon as a component or an assembly is touched by a person who is not grounded against
static electricity. The damage to a module as a result of overvoltage cannot usually be
detected immediately. It may only become apparent after a long period of operation.
2.5 Qualified Personnel
Qualified personnel are people who are familiar with the installation, mounting,
commissioning, and operation of the product. These people have the following qualifications:
● They are authorized, trained or instructed in operating and maintaining devices and
systems according to the safety regulations for electrical circuits, high pressures and
aggressive as well as hazardous media.
● For explosion-proof devices: They are authorized, trained, or instructed in carrying out
work on electrical circuits for hazardous systems.
● They are trained or instructed in maintenance and use of appropriate safety equipment
according to the safety regulations.

SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
Operating Instructions, 10/2007, A5E00841127-01 11
Description 3
3.1 Applications
The SITRANS DA400 acoustic diagnostics unit acoustically measures the acoustic emission
of oscillating positive displacement pumps.
The SITRANS DA400 allows continuous, simultaneous and independent monitoring of up to
four valves in a pump for leaks. In addition, another four inputs are available for monitoring
standard signals (e.g. diaphragm and temperature monitoring). This means that the condition
of an oscillating positive displacement pump is monitored in every phase of its operation.
The SITRANS DA400 is used in all industries where oscillating positive displacement pumps
are used.
3.2 Operation
You can operate and configure the SITRANS DA400 using the keys. In parallel, you can also
operate the SITRANS DA400 via a PROFIBUS connection.

Description
3.3 Layout
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
12 Operating Instructions, 10/2007, A5E00841127-01
3.3 Layout
3.3.1 Device structure
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Figure 3-1 Front view (closed and open)
① Screwable cover ⑥ Terminal connection diagram
② Nameplate ⑦ Terminal strip
③ Digital display ⑧ Cable gland
④ Keypad ⑨ Mounting plate
⑤ Sensor

Description
3.3 Layout
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
Operating Instructions, 10/2007, A5E00841127-01 13
3.3.2 Structure of the nameplate
Device
(2)
(3)
(4)
(1) (5)
(7) (9)
(8)
(6)
(1) Manufacturer (6) Technical data
(2) Product name (7) Serial number
(3) Order number (8) Explosion protection
(4) Place of manufacture (9) Address for information
(5) Product information
Sensor
(3)
(2)
(5)
(4)
(6)
(1)
(7)
(9)
(8)
(1) Manufacturer (6) Address for information
(2) Order number (7) Place of manufacture
(3) Product name (8) Product information
(4) Serial number (9) Explosion protection
(5) Product version

Description
3.4 Mode of operation
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
14 Operating Instructions, 10/2007, A5E00841127-01
3.4 Mode of operation
3.4.1 Measuring principle
Mode of operation
Leaks in the valves of oscillating positive displacement pumps are flows in which cavitation
occurs. This generates sound waves. The sound waves are transferred to the valve housing.
The acoustic emission sensor of the acoustic diagnostics unit detects these sound waves on
the exterior of the valve housing.
The sound pressure level L generated by the leak depends on the hydraulic power Phyd as
follows:
L ORJ P
hyd
η

P

L Sound pressure level
η Energy conversion coefficient, from hydraulic to acoustic
Phyd Hydraulic power
P0 Reference power
The hydraulic power at a valve depends on the pressure differential Δp and the flow rate Q
as follows:
Phyd ˂p Q

Phyd Hydraulic power
Δp Pressure differential
Q Flow rate
The valves of an oscillating displacement pump open and close periodically. The sound
pressure level of an intact valve is low. The sound pressure level of a defective valve
depends on the valve position. A pump working normally changes the valve position
periodically between open and closed. The sound pressure level therefore fluctuates
periodically. The appearance of a sensor signal and sound pressure level on an intact valve
and a defective valve, is shown in the following two figures.

Description
3.4 Mode of operation
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
Operating Instructions, 10/2007, A5E00841127-01 15
Figure 3-2 Sensor signal (a) and sound pressure level (b) on an intact valve
Figure 3-3 Sensor signal (a) and sound pressure level (b) on a defective valve
L0 Sound pressure level produced by load-dependent operating noise of the pump
L1 Sound pressure level produced by the operating noise of the pump as well as a leak
LD Is the measured value of the acoustic diagnostics unit and corresponds to the additional noise
caused by the leak
The measurement always refers to the operating noise of the pump. The measurement is
carried out in the ultrasonic range. In the ultrasonic range, the operating noise of the pump
and the closing noise of the valves are attenuated. Crosstalk between neighboring valves is
also attenuated.

Description
3.4 Mode of operation
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
16 Operating Instructions, 10/2007, A5E00841127-01
The following table lists the possible states of discharge pressure, flow rate, energy
conversion coefficient and sound pressure level depending on the state of the valve:
Valve state Valve position Δp Q ƞ L
intact open small large small small
intact closed large zero small small
defective open small large small small
defective closed large medium large* large
* through cavitation
Only a closed defective valve results in a high sound pressure level.
3.4.2 Sensor operation
The acoustic emission sensor works on the piezoelectric principle. The acoustic emission is
injected into the sensor via the sensor base (mounting surface) and inside it is converted into
an electrical voltage by a piezoceramic element. This is amplified in the sensor and
transmitted via the cable.
The sensor frequency range lies in the ultrasonic range (>20 kHz). The sensor is non-
directional, i.e. the angle at which the sound wave is incident on the sensor base is not
important.

Description
3.4 Mode of operation
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
Operating Instructions, 10/2007, A5E00841127-01 17
3.4.3 Operation of the electronics
Block diagram
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Figure 3-4 Block diagram
L+ Power supply (any polarity) I+ Analog current input +
L- Power supply (any polarity) ⊥ Mass
DO Digital output DI Digital input
Sens Sensor A PROFIBUS PA (any polarity)
In input B PROFIBUS PA (any polarity)

Description
3.4 Mode of operation
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
18 Operating Instructions, 10/2007, A5E00841127-01
By using a bridge rectifier, the current from a suitable external feed splitter creates the
internal current voltage of 3.3 V and 8.2 V for circuit 2. The supplementary voltage UH is
obtained from the PROFIBUS-PA signal of an external coupler. Circuits 1 and 2 have split
potential regarding the current and each other. Circuit 1 consists of a microcontroller (µC2)
that is responsible for PROFIBUS communications. It is connected to the micro-controller
(µC1) in circuit 2 via a serial, split potential coupler. At the heart of this circuit is a signal
processor with integrated analog-digital converter for high-speed recording and evaluation of
the available signals. Moreover, an EEPROM safe from a voltage drop is activated for
storing data and the display, and the key strokes are read in.
The six digital outputs are separated individually by potential and designed for connection to
a NAMUR connection hardener. The maximum four acoustic sensors are connected to the
four-pole "Sens1" to "Sens4" blocks. In each case, two terminals provide the supply for the
sensor electronics and two terminals are used to connect the sensor signal.
Different standard signals can be connected at each of the four universal inputs "In 1" to
"In 4". The switching of the four terminals is to be set up according to signal or sensor type
(0/4 to 20 mA, digital signal for 24 V, closing contact).

SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
Operating Instructions, 10/2007, A5E00841127-01 19
Mounting 4
4.1 Safety information for installation
Ambient temperature
WARNING
Fire hazard
Fire hazard resulting from hot surfaces. When installing the sensor, take note of the surface
temperature of the installation site.
Overview
The SITRANS DA400 and the sensor are mounted in different ways. In general:
Note
Protection against harmful outside influences
To protect the SITRANS DA400 against harmful outside influences, a housing should be
fitted. Harmful external influences can occur if you install the SITRANS DA in the open air,
where it can be influenced by intensive frost, heat or rain.
4.2 Mounting the device
Condition
To mount the device, you need three screws with a diameter of 6 mm. These are not
supplied with the device.

Mounting
4.3 Installation notes for acoustic emission sensors
SITRANS DA400 for oscillating positive displacement pumps with protection against explosion
20 Operating Instructions, 10/2007, A5E00841127-01
Mounting the device
1. Screw the three screws through the mounting holes to mount the device. The position of
the mounting holes and the mounting dimensions in millimeters are indicated on the rear
of the housing.
2. Mount the device preferably at a right angle with the cable gland pointing downward.
4.3 Installation notes for acoustic emission sensors
Installation notes for acoustic emission sensors
You will need the enclosed hexagon socket-head screw M6x16 and the locating pin ∅ 3x10
for installation of the acoustic emission sensor.
Install each acoustic emission sensor individually at the pump housing or the valve housing.
Install the acoustic emission sensor close to the valve that is to be monitored.
There is a good acoustic coupling if no elastic elements such as seals or similar are located
between the sensor and the valve, which means there are good ferrous connections.
As the acoustic emission is injected into the sensors via their base, the substrate on the
housing must be uniformly even and smooth, and at least as large as the sensor base. Use
viscous lubricating grease to improve the coupling. This lubricating grease is not supplied
with the device.
Note
Installation
Install the acoustic emission sensor so that the distance to the valves is more or less the
same.
The following applies to pumps with good acoustic coupling between discharge side and
intake side:
A single acoustic emission sensor may be all that is required for the entire pump or a pump
head with two valves.