Datcon DT7001 Bedienungsanleitung
DT7001
Intrinsically Safe Differential Pressure Transmitter
Operating Instructions
DT7001
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Contents
1. About this document.....................................................4
1.1. Function ................................................................................... 4
1.2. Target group............................................................................. 4
1.3. Symbolism used....................................................................... 4
2. For your safety...............................................................5
2.1. Authorized personnel ............................................................... 5
2.2. Appropriate use........................................................................ 5
2.3. Warning about misuse ............................................................. 5
2.4. General safety instructions....................................................... 5
2.5. EU conformity........................................................................... 5
2.6. Safety information for Ex areas................................................ 6
2.7. Environmental instructions ....................................................... 6
3. Product description.......................................................7
3.1. Delivery configuration............................................................... 7
3.2. Principle of operation ............................................................... 8
3.3. Adjustment ............................................................................... 8
3.4. Storage and transport .............................................................. 8
4. Mounting.........................................................................9
4.1. General Instructions ................................................................. 9
4.2. Main dimensions of the instrument ........................................ 10
4.3. Mounting procedure ............................................................... 11
5. Connecting ...................................................................13
5.1. Preparing the connection ....................................................... 13
5.2. Connection procedure............................................................ 14
5.3. Connecting the pressure to the instrument ............................ 16
5.4. Put the instrument under supply voltage................................ 16
6. Setting up .....................................................................17
6.1. Zeroing ................................................................................... 17
6.2. Calibrate the instrument ......................................................... 18
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7. Fault rectification.........................................................19
7.1. Fault finding............................................................................ 19
7.2. Repairing................................................................................ 19
8. Dismounting.................................................................20
8.1. Dismounting procedure .......................................................... 20
8.2. Disposal ................................................................................. 20
9. Appendix.......................................................................21
9.1. Technical specification ........................................................... 21
9.2. Application example ............................................................... 23
9.3. ATEX Certification.................................................................. 24
DT7001
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1. About this document
1.1. Function
This operating instructions manual has all the information
you need for quick set-up and safe operation of DT7001.
Please read this manual before you start setup.
1.2. Target group
This operating instructions manual is directed to trained
personnel. The contents of this manual should be made
available to these personnel and put into practice by them.
1.3. Symbolism used
Information, tip, note
This symbol indicates helpful additional information.
Caution, warning, danger
This symbol informs you of a dangerous situation that could
occur. Ignoring this cautionary note can impair the person
and/or the instrument.
Ex applications
This symbol indicates special instructions for Ex
applications.
•List
The dot set in front indicates a list with no implied sequence.
→Action
This arrow indicates a single action.
1
Sequence
Numbers set in front indicate successive steps in a
procedure.
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2. For your safety
2.1. Authorized personnel
All operations described in this operating instructions
manual must be carried out only by trained and authorized
specialist personnel. For safety and warranty reasons, any
internal work on the instruments must be carried out only by
DATCON personnel *.
* Except Chapter “6. Setting up”
2.2. Appropriate use
The DT7001 is a differential pressure meter / transmitter
for measurement of gauge pressure, differential pressure
of dry air.
The measuring range and overpressure are given on the
instruments data label.
2.3. Warning about misuse
Inappropriate or incorrect use of the instrument can give rise
to application-specific hazards, or damage to system
components through incorrect mounting or adjustment.
2.4. General safety instructions
The DT7001 is a high-tech instrument requiring the strict
observance of standard regulations and guidelines.
The user must take note of the safety instructions in this
operating instructions manual, the country-specific
installation standard as well as all prevailing safety
regulations and accident prevention rules.
2.5. EU conformity
The DT7001 is in conformity with the provisions of the
following standards:
MSZ EN 60079-0:2013 (ATEX)
MSZ EN 60079-0:2013/A11:2014 (ATEX)
MSZ EN 60079-11:2012 (ATEX)
MSZ EN 61326-1:2013 (EMC)
MSZ EN 55011:2016 (EMC)
MSZ EN 55011:2016/A1:2017 (EMC)
MSZ EN 61010-1:2011 (LVD)
MSZ EN 50581:2011 (RoHS 2)
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2.6. Safety information for Ex areas
Please note the Ex-specific safety information for installation
and operation in Ex areas. These safety instructions are part
of the operating instructions manual and come with the
concerning standards of Ex-approved instruments.
Warning! Electrostatic hazard. Clean the instrument housing
with a moist cloth and detergent!
2.7. Environmental instructions
Protection of the environment is one of our most important
duties.
Please take note of the instructions written in the following
chapters:
•Chapter 3.4. Storage and transport
•Chapter 8.2. Disposal
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3. Product description
3.1. Delivery configuration
Delivered items The scope of delivery encompasses:
•DT7001
•documentation:
this operating instructions manual
certification
warranty
The DT7001 consist of the following components:
1. instrument housing
2. front cover
3. pressure connecting stubs
4. connector sealing
5. connector
6. ground terminal
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3.2. Principle of operation
Area of application The DT7001 Intrinsically Safe Differential Pressure
Transmitter enable measure gauge pressure or differential
pressure of dry air in Zone 1, 2 areas.
Application fields are: HVAC systems, filter monitoring, clean
rooms, etc.
Operating principle The measuring air gets into the measuring space of the
sensor via the pressure ports. The differential pressure
value is converted into electrical value by the sensor.
The signal converter circuit converts it into, 4-20 mA current
signal for the output.
Power supply The supply voltage is 12-28 VDC.
For other requirements see: Chapter 9.1. Technical
specification, Safety data.
3.3. Adjustment
The DT7001 is calibrated for the ordered measuring range.
If needed it is possible for the user to calibrate the
instrument via the internal trimmer potentiometers.
3.4. Storage and transport
This instrument should be stored and transport in places
whose climatic conditions are in accordance with chapter
9.1. Technical specification, as described under the title:
Environmental conditions.
Handle the package with special care the instrument is
highly sensitive to shocking!
The packaging of DT7001 consist of environment-friendly,
recyclable cardboard is used to protect the instrument
against the impacts of normal stresses occurring during
transportation. The corrugated cardboard box is made from
environment-friendly, recyclable paper. The inner protective
material is polyfoam and nylon, which should be disposed of
via specialized recycling companies.
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4. Mounting
4.1. General Instructions
Please respect the followings. Inappropriate or incorrect use
or mounting may cause measuring failure or damage of the
instrument.
Media compatibility The sensing element materials of the DT7001 are silicon
diaphragm, glass filled nylon and alumina ceramic.
Apply dry air only!
Pressure compatibility Check that the maximum pressure occur on the pressure
ports is always under the allowable value given on the data
label.
Measures differential or gauge pressure only with positive
pressure to port P+.
Mounting position The instrument should be where in vertical position Select a
mounting position you can easily read the display reach for
mounting and connecting the instrument and that reduce the
hazard of water, dust or dump getting into the instrument.
Shock, vibration Avoid shock or vibration during mounting and operation.
After mounting the instrument it is suggested to check the
zero on the display especially in case of < 300 Pa measuring
range.
If the output current zero (4 mA or 12 mA) deviation is > cca.
100 µA you can adjust it according Chapter 6.1. Zeroing.
Water, humidity The protection of the instrument is IP 65.
In a case of using DT7001 outdoor mount a shield over the
instrument to protect it against strong rain.
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4.2. Main dimensions of the instrument
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