Dinel DLM-35 Manuals

Read carefully the instructions published in this manual before the first use of the level meter. Keep the manual at a safe place. The manufacturer reserves the right to implement changes without prior notice. průmyslová elektronika Capacitive level meters DLM – 35 INSTRUCTION MANUAL 1 .  Basic description..........................................................................................................................4 2 .  Variants of level meters................................................................................................................5 3 .  Dimensional drawing....................................................................................................................6 4 .  Installation and putting into operation..........................................................................................8 5 .  Installation instructions.................................................................................................................8 6 .  Electrical connection..................................................................................................................10 7 .  Control elements........................................................................................................................11 8 .  Function and status indication....................................................................................................11 9 .  Settings......................................................................................................................................12 10 .  Order code...............................................................................................................................14 11 .  Correct specification examples................................................................................................14 12 .  Accessories..............................................................................................................................15 13.  Safety, protections, compatibility and explosion proof ............................................................15 14 .  Use, manipulation and maintenance........................................................................................16 15 .  General, conditions and warranty............................................................................................16 16 .  Marking of labels......................................................................................................................16 17.  Technical specifications...........................................................................................................19 18 .  Packings, shipping and storage...............................................................................................23 Contents DLM–35 © Dinel, s.r.o. 3 The capacitative level meters DLM® are intended for continuous level measurement of liquid and bulk solids in tanks, vessels, sumps or silos, hoppers etc. They are comprised of a housing with electronic module and measuring electrodes. The electronic part converts the size of the capacity to the current signal (4 ... 20 mA) or voltage signal (0 ... 10 V).Level meters are made in several modifications of measuring electrodes (rod and rope). The electrodes can be covered by an insulating coating in case level measurement of adhesive, aggressive or electrically conductive media. Rod electrodes are also available in a version with reference (coaxial) tube for level measurement of liquids in tanks made from non-conductive material. Level meters are produced in the following performances: N – for non-explosive areas, NT – high temperature for non-explosive areas, Xi – Explosion proof – intrinsically safe for hazard- ous (explosive) areas and XiM – Explosion proof – intrinsically safe for use in mines with methane or flammable dust presence danger (see technical specifications). There are high temperature per- formance NT, XiT, XiMT available. DLM are offered in variants with various types of process con- nection (metric and pipe thread, pressure thread NPT). 1 .  Basic description To ensure maximum safety of control processes, we have defined the following safety instructions and information. Each instruction is labelled with the appropriate pictogram. Alert, warning, danger This symbol informs you about particularly important instructions for installation and operation of equipment or dangerous situations that may occur during the installation and operation. Not observing these instructions may cause disturbance, damage or destruction of equipment or may cause injury. Information This symbol indicates particularly important characteristics of the device. Note This symbol indicates helpful additional information. Used symbols Safety All operations described in this instruction manual have to be carried out by trained personnel or by an accredited person only. Warranty and post warranty service must be exclusively carried out by the manufacturer. Improper use, installation or set-up of the sensor can lead to crashes in the application. The manufacturer is not responsible for improper use, loss of work caused by either direct or indirect damage, and for expenses incurred at the time of installation or during the period of use of the level sensors. 4 © Dinel, s.r.o. DLM–35 2 .  Variants of level meters  •  DLM–35_–20 Uncoated rod electrode for level measurement of bulk-solids (cement, flour, sand, plastic granulate) and electrically non-conductive liquids (vegetable oil, diesel fuel, petrol). Maximum electrode length 1 m.  •  DLM–35_–21 Coated rod electrode (insulation FEP) for level measurement of water and other electrically conductive liquids. Can also be used for polluted liquids in metal tanks, concrete sumps, etc. Maximum electrode length 1 m.  •  DLM–35_–22 Coated rod electrode (insulation PFA) with enhanced resistance to permeation (diffusion) of vapours and gases. For level measurement of water and other electric conductive liquids in the food, pharmaceutical and chemical industries. In the short term can be used for high temperature applications (e.g. hot steam sanitation), or for volatile aggressive liquids, etc. Maximum electrode length 1 m.  •  DLM­–35_­–25 like DLM-35_-22 but higher pressure resistance at high temperature. Suitable for high temperature applications (hot steam) etc.  •  DLM­–35_­–30 Uncoated rod electrode used for level measurement of bulk-solids (cement, flour, sand, plastic granulate) and electrically non-conductive liquids (vegetable oil, diesel fuel, petrol). Maximum electrode length 3 m.  •  DLM­–35_–31 Coated rod electrode (FEP) for level measurement of water and other electrically conductive liquids. Can also be used for polluted liquids in metal tanks, concrete sumps, etc. Maximum electrode length 3 m.  •  DLM­–35_­–40 Uncoated rod electrode with reference tube (coaxial electrode) for accurate level measurement of unpolluted electrically non-conductive liquids (oils, diesel fuel, petrol). The measurement is not dependent on the tank shape and on the presence of objects in close proximity to the reference tube. Maximum electrode length 1 m. •  DLM­–35_­–41 Coated rod electrode with reference tube(coaxial electrode) for accurate level measurement of unpolluted electrically conductive liquids in plastic and glass tanks. The measurement is not dependent on the tank shape and on the presence of objects in close proximity to the reference tube. Maximum electrode length 1 m.  •  DLM­–35_­–50 Uncoated rope electrode with weight for level measurement of bulk-solids (e.g. grains, sand, gravel, cement, etc.). Maximum electrode length 6 m.