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Precont CT
Pressure transmitter for general applications
Monitoring of absolute or relative pressure
in gases, vapors, liquids and dust
Technical manual
07.17
Applications
General applications in
•
Machinery and plant engineering
Air-conditioning and refrigeration plant engineering
•
Hydraulic and pneumatic systems
•
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Process industry
Environmental technology
•
Facility and building automation
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Main features
Wide range of applications
Finely graded measuring ranges from 100 mbar up to 16 bar
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Wide process temperature range –40°C to +125°C
•
•
Wide variety of process connections
High protection class IP69K/IP67
•
Wide environmental temperature range –40°C to +85°C
•
•
Certification ATEX II 1 G Ex ia IIB/IIC Tx Ga
Ceramic front-flush diaphragm
High accuracy – characteristic deviation to ≤ 0,1% of measuring
range
Integrated evaluation electronic
Current output 4...20mA
•
Voltage output 0...10V
•
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Connector plug M12
Connector plug EN 175-301-803-C / -A
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Connection cable with integrated reference air capillary
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Summary of Contents for ACS contsys Precont CT
- Page 1 Precont CT Pressure transmitter for general applications Monitoring of absolute or relative pressure in gases, vapors, liquids and dust Technical manual 07.17 Applications General applications in • Machinery and plant engineering Air-conditioning and refrigeration plant engineering • Hydraulic and pneumatic systems •...
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Page 2: Safety Notes
2 Safety notes 2.1 Operational safety The device is safely built and tested according to state-of-the-art technology and has left the factory in perfect condition as regards technical safety. The device meets the legal requirements of all relevant EU directives. This is confirmed by attaching the CE mark. - Page 3 2.3 Operating supplies for explosive hazardous areas If a device is installed and operated in explosive hazardous areas, the general Ex construction standards (EN/IEC 60079-14, VDE 0165), these safety notes and the enclosed EU type examination certificate incl. supplements must be observed. The installation of explosive hazardous systems must be carried out principally by specialist staff.
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Page 4: Installation Place
Installation The correct function of the device within the specific technical data can only be guaranteed, if the permitted process and environmental temperatures (see chapter „Technical data“) will not be exceeded. 3.1 Installation place The installation of the device at locations where high pressure blows can occur should be avoided. At a pressure measurement in gases, the device should be installed above the tapping point, so that the condensate can flow into the process. - Page 5 3.4 Air pressure compensation Avoid the damaging or pollution of the pressure compensation system. The hindrance of the pressure compensation can lead to faulty measuring results. The filter element of the pressure compensation system is positioned at the variant: Plug M12 drill hole besides the plug Plug EN 175-301-803-C...
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Page 6: Electrical Connection
Electrical connection The electrical connection of the device must be carried out according to the respective country specific standards. Incorrect installation or adjustment could cause applicationally conditioned risks. Potential equalization - earthing The device must be grounded. The earthing can be carried out by the process connection. Connection cable Use only shielded signal and measurement wires and install these wires separated from power leading wires. -
Page 7: Connection Scheme
Connection scheme 4.5.1 Electronic output – 2-wire, current 4…20mA Plug M12 Conductor color standard connection cable M12 – A-coded: BN = brown, BU = blue Plug EN 175-301-803 Cable Conductor color cable: RD = red, BK = black, GNYE = greenyellow 4.5.2 Electronic output –... - Page 8 Plug EN 175-301-803 Cable Conductor color cable: RD = red, BK = black, WH = white, GNYE = greenyellow ACS-CONTROL-SYSTEM GmbH l Lauterbachstr. 57 l D-84307 Eggenfelden l www.acs-controlsystem.de l info@acs-controlsystem.de...
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Page 9: Operation
Operation An operation provided by user is not designated. 6 Service 6.1 Maintenance The device is free of maintenance. Special substances can lead to solid coatings on the sensor. Seized depositions can lead to faulty measurement results. In the case of coat forming liquids the sensor must be regularly cleaned e.g. with clear water. Don’t use sharp resp.
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