Labom CX2001 series Manuale utente
High temperature pressure transmitter
Type series CX2001
Questions about this device? Hotline +49 (0) 4408 804 - 444
LABOM Mess- und Regeltechnik GmbH Im Gewerbepark 13 27798 Hude Deutschland
Tel.: +49 (0) 4408 804-0 Fax: +49 (0) 4408 804-100 e-mail: info@labom.com www.labom.com
BA_077
Rev 1K7
Page 1/5
Operating Instructions
1
General Information.......................................................................................................2
1.1
General Safety Notes..............................................................................................2
1.2
Intended Use...........................................................................................................2
1.3
Conformity with EU Regulations..............................................................................2
1.4
ATEX Approval........................................................................................................2
2
Transportation and Storage..........................................................................................2
3
Installation and Commissioning ..................................................................................2
3.1
Mechanical Installation............................................................................................3
3.2
Electrical Connection ..............................................................................................3
4
Operation........................................................................................................................3
4.1
Zero-point correction...............................................................................................4
4.2
Devices with Diaphragm Seal .................................................................................4
4.3
Maintenance / Service.............................................................................................4
5
Disassembly...................................................................................................................5
BA_077 Rev 1K7 High temperature pressure transmitter Page 2/5
1 General Information
This document contains necessary information for the proper installation and use of this
device. In addition to this instruction, be sure to observe all statutory requirements, appli-
cable standards, the additional technical specifications on the accompanying data sheet
(see www.labom.com) as well as the specifications indicated on the type plate.
1.1 General Safety Notes
The installation, set up, service or disassembly of this device must only be done by
trained, qualified personnel using suitable equipment and authorized to do so.
Warning
Media can escape if unsuitable devices are used or if the installation is not
correct.
Danger of severe injury or damage
Ensure that the device is suitable for the process and undamaged.
1.2 Intended Use
The device is intended to measure pressure of gases, vapors and liquids as specified in
the data sheet.
1.3 Conformity with EU Regulations
The CE-marking on the device certifies its compliance with the applicable EU Directives for
placing products on the market within the European Union.
You find the complete EU Declaration of Conformity (document no. KE_021) at
www.labom.com.
1.4 ATEX Approval
Devices of the type CX2001 are certified for use in explosive environments.
If you purchased a device with ATEX approval, please refer to the accompanying docu-
ment XA_007 for ATEX-relevant information.
2 Transportation and Storage
Store and transport the device only under clean and dry conditions preferably in the origi-
nal packaging. Avoid exposure to shocks and excessive vibrations.
Permissible storage temperature: 0…80 °C
3 Installation and Commissioning
Ensure that the device is suitable for the intended application with respect to pressure
range, overpressure limit, media compatibility, temperature range and process connection.
BA_077 Rev 1K7 High temperature pressure transmitter Page 3/5
3.1 Mechanical Installation
Before starting operation, check the process connection carefully for leaks under pressure.
You can use the device in any mounting position. Normally the transmitter is adjusted for a
vertical mounting position. A different mounting position in combination with a small nomi-
nal range might cause a zero point offset. In this case a zero point adjustment might be
necessary.
Use gaskets, if required, that are suitable for the process connection and resistant to the
media.
Use new gaskets for each installation. We recommend the use of aluminium gaskets (A 27
x 32 as per DIN 7603), which you can order directly from us as an accessory.
Fit the pressure transmitter using four flange screws, as shown on the drilling diagram, and
tighten them gradually crosswise. Max. tightening torque: 60 Nm (slightly oiled).
During installation of the device, attention has to be paid to the diaphragms not being
damaged by the medium being measured. This is particularly important in the case of co-
agulating media that can have deforming influence on the diaphragms when they get cold.
Do not insulate the temperature coupler (tubular shank under the transmitter), as this
would reduce its decoupling effect.
Figure 1: Drilling diagram
3.2 Electrical Connection
Complete the mechanical installation before you connect the device electrically.
Set up all electrical connections while the voltage supply is switched off.
Figure 2: Electrical connection
4 Operation
During operation, take care that the device remains within its intended pressure and tem-
perature ranges. No other monitoring is necessary.
Permissible media temperature: 10…350 °C
Permissible ambient temperature: 10…70 °C
BA_077 Rev 1K7 High temperature pressure transmitter Page 4/5
4.1 Zero-point correction
If a subsequent zero point correction becomes necessary the potentiometers can be ac-
cessed in the model with field housing by unscrewing the locking ring. The potentiometer
for the zero point (zero) and range (span) can be adjusted with a screwdriver (1.5x40). 10
revolutions correspond to approx. ± 10% of the measurement range. An exact reference
pressure should be applied to align the measurement range.
Figure 3: Zero-point correction
4.2 Devices with Diaphragm Seal
Remove the protective cap or protective wrapping from the diaphragm only just before in-
stallation to prevent contamination or damage.
The diaphragm must not be touched. Do not place the device on its diaphragm. Even
small scratches or deformations may negatively influence the zero point or other charac-
teristics of the device.
Pressure transmitter and diaphragm seal are a closed system that must not be separated.
You can find further information about diaphragm seals in the document TA_031 on
www.labom.com.
4.3 Maintenance / Service
When properly installed in accordance with applicable specifications, this device is
maintenance-free. However, we recommend an annual recalibration of the device.
In the event of any damage or defect the customer cannot replace or repair any compo-
nents or assemblies.
BA_077 Rev 1K7 High temperature pressure transmitter Page 5/5
5 Disassembly
When measuring hot media, make sure that the device has cooled down prior to any dis-
mounting or wear appropriate protective clothing to avoid burns.
Switch off the power supply to the device before disconnecting the electrical connections.
Once this is done, the device may be mechanically removed.
Remove the four flange screws.
The pressure transmitter system may be pulled out only while the process medium is liquid
(above melting point).
Use cylinder head screws (M12 x 55 as per DIN 912, A2-70) quality) for the two threaded
holes, as shown on the drilling diagram, to push the device out of the process and ensure
ease of removal. You can order these screws as an accessory.
Warning
Opening pressurized lines might cause severe injuries.
Danger of severe injuries or damage
Relieve the process pressure before attempting to remove the device.
Shut off the pressure supply for all feed lines to the device and relieve the
pressure in them.
Warning
Hazardous deposits and residues might remain on opened process connec-
tions and removed devices.
Danger of injury
After the device has been removed, seal off the measuring point
and
mark the open process connection accordingly. Consider a possible dan-
ger due to residues when handling the removed device.
Indice
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