Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Dinel DLS-27 Series
Summary of Contents for Dinel DLS-27 Series
- Page 1 INSTRUCTION MANUAL průmyslová elektronika Capacitive level sensors DLS – 27 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.
-
Page 2: Table Of Contents
Contents 1 . Basic description ........................3 2 . Variants of sensors ........................4 3 . Dimensional drawing ........................ 5 5 . Mechanical mounting ....................... 6 4 . Installation and putting into operation ..................6 6 . Range of application and installation of individual variants ............12 7 . Electrical connection ........................ 13 8 ... -
Page 3: Basic Description
For use in flammable dust atmospheres; Xi – Explosion proof – intrinsically safe for hazardous (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 performance NT, XiT, XiMT available and various types of process connection (metric and pipe thread, jointless connection Tri-clamp). DLS–27 © Dinel, s.r.o. -
Page 4: Variants Of Sensors
• DLS–27_–30 Dismountable uncoated rod electrode for sensing bulk solids and conduc- tive or non-conductive liquids. Vertical or horizontal slant mounting. Electrode length 0.1 m ... 3 m. • DLS –27_ –31 Fully coated rod electrode, for sensing aggressive conductive liquids (water, various chemicals). Vertical mounting. Electrode length from 0.1 m to 2 m. • DLS –27_ –40 Uncoated rope electrode and weight, for general purpose use in deeper silos (bulk solids sensing – sand, gravel, cement) or sumps (sensing liquids). Vertical mounting. Electrode length from 1 m to 6 m. © Dinel, s.r.o. DLS–27... -
Page 5: Dimensional Drawing
DLS – 27_ – 30 thread * * Type of threads: G 3/4'' M27x2 M30x1,5 DLS – 27_ – 31 DLS – 27_ – 40 High tempera- Tri-clamp tures variants connection ** ** connection: Tri-Clamp CI34 (ø 34 mm) DLS–27 © Dinel, s.r.o. -
Page 6: Mechanical Mounting
(armouring). In the case of the reading of an aggressive medium, we recommend that the producer be consulted If the sensors are fitted with protective caps at the ends of the electrodes, remove the caps before commissioning. © Dinel, s.r.o. DLS–27... - Page 7 CORRECT AND INCORRECT INSTALLATION FOR TYPE: All side mounted sen- INTO STORAGE TANK SIDE WALL sors In case of side wall mounting (Fig. 3), place the sensor outside the flow of bulk solids or liquids. Fig. 3: Correct and incorrect installation into storage tank side wall DLS–27 © Dinel, s.r.o.
- Page 8 This will increase the local sensitivity h = 50 to 200 mm and accuracy of sensing the level at the spot of the bend. When weather conditions (wind, rain, snow) clearly influence the electrode (open sumps), we recommend using types with an insulated electrode (DLS-27_-21, 31). Fig. 6: Bending of the electrode end to sense unknown fluids © Dinel, s.r.o. DLS–27...
- Page 9 Fig. 7: Auxiliary electrode in non-conductive tanks SOLAR RADIATION SHIELDING COVER FOR TYPE: All type The level meter must not be installed in locations exposed to direct solar radiation and must be protected against the effects of weather. In the event that installation in a location with direct solar radiation is unavoidable, it is necessary to install a shielding cover above the level meter. Fig. 8: Solar radiation shielding cover DLS–27 © Dinel, s.r.o.
- Page 10 Fig. 10: Protective hose install SENSOR MOUNTING IN A TUBE FOR TYPE: DLS–27_–10, 11, 21, 22 In the case of mounting in the pipe it is nec- essary to provide the minimum distance of the inner walls from the electrode at 5 mm. In some cases (sticky liquids, low permittivity liquids) it is better to mount the sensor into a pipe bend. Fig. 11: Sensor mounting in a tube © Dinel, s.r.o. DLS–27...
- Page 11 In the case of vertical mounting especially on existing tanks, it is necessary to select the pipe length as short as possible to avoid vapour con- ÷ densation, or sedimentation of impurities. A simi- lar situation occurs when the sensing electrode goes through the concrete ceiling of the silo. The hole diameter should be at least 50 mm (based on ceiling thickness). Fig. 13: Long fitting tubes in vertical mounting DLS–27 © Dinel, s.r.o.
-
Page 12: Range Of Application And Installation Of Individual Variants
DLS–27_–21, 22 Specified for conductive liquids level sensing (water, water solutions, mud, etc.). It reacts to partial or full immersion of the electrode (depending on the adjusted sensitivity). The lower the sensitivity, the higher the sensor’s resistance to contaminants and clinging remnants of material. The sensor with electrode length of up to 200 mm can be desensitized to complete water immersion, so it can be operated in the horizontal position. The sensor can be operated in the vertical position with any length up to 1 m. The sensor is mounted directly into the wall of the tank in horizontal or vertical position by applying a steel or stainless steel welding flange. For variant “22”, the material PFA is used to insulate the electrode. DLS –27_ –30 Designed for sensing conductive and non-conductive liquids and bulk solids. It is not recommended to install the sensor into closed vessels (storage tanks) where intensive water vapour condensation occurs. The sensor reacts to electrically conductive liquids just by touch of the end of electrode. To react to a non-conductive liquid (bulk solid), it is necessary to have 5 ÷ 20% immersion of the electrode according to the sensor’s adjusted sensitivity and permittivity of the sensed material. The sensor is mounted directly into a tank, hopper or sump in slant or vertical position by means of weld- ing flange or stainless steel fixing nut. In non-metal storage tanks, we recommend mounting the sensor on an auxiliary metal-plate electrode with min. area of 500 cm © Dinel, s.r.o. DLS–27... -
Page 13: Electrical Connection
XiMT variations must be selected with respect to the maximum permitted parameters (usually inductance and capacity) of the outside intrinsically safe circuit of supply units (NSSU, NDSU, NLCU). If using a dismountable connector socket, the outside diameter of the cable is a maximum of 6 mm. DLS–27 © Dinel, s.r.o. - Page 14 In the event of strong ambient electromagnetic interference, paralleling of conductors with power distribution, or for distribution to distances over 30 m, we recommend using a shielded cable and grounding the shielding on the side of the power source. © Dinel, s.r.o. DLS–27...
-
Page 15: Settings
DLS–27_–20 0,1 pF 0,2 pF ... 3 pF min. 15 pF (1 ot. = 1,5 pF) ± 0,006 pF/K min. 1,3 DLS–27_–21 0,3 pF 0,3 pF ... 6 pF min. 30 pF (1 ot. = 3 pF) ± 0,01 pF/K min. 4,0 DLS–27_–22 0,3 pF 0,3 pF ... 6 pF min. 30 pF (1 ot. = 3 pF) ± 0,01 pF/K min. 4,0 DLS–27_–30 0,2 pF 0,2 pF ... 4 pF min. 20 pF (1 ot. = 2 pF) ± 0,01 pF/K min. 1,6 DLS–27_–31 0,3 pF 0,2 pF ... 5 pF min. 25 pF (1 ot. = 2,5 pF) ± 0,01 pF/K min. 5,0 DLS–27_–40 0,3 pF 0,2 pF ... 6 pF min. 20 pF (1 ot. = 2 pF) ± 0,01 pF/K min. 2,0 DLS–27 © Dinel, s.r.o. -
Page 16: Function And Status Indication
DLS–27Xd – _ _–D–NO–_ OPEN DLS–27N_–_ _– _ –PO–_ DLS–27Xd – _ _–D–PO–_ (Dark) LOWER DLS–27Xi–_ _– _ –RO–_ CURRENT DLS–27N_–_ _– _ –NC–_ DLS–27Xd – _ _–D–NC–_ CLOSED DLS–27N_–_ _– _ –PC–_ DLS–27Xd – _ _–D–PC–_ (Shine) HIGHER DLS–27Xi–_ _– _ –RC–_ CURRENT DLS–27N_–_ _– _ –NC–_ DLS–27Xd – _ _–D–NC–_ OPEN DLS–27N_–_ _– _ –PC–_ DLS–27Xd – _ _–D–PC–_ (Dark) LOWER DLS–27Xi–_ _– _ –RC–_ CURRENT © Dinel, s.r.o. DLS–27... -
Page 17: Order Code
1420 mm. DLS–27Xd–20–D–NC–G E430 cable 3 m (Xd) Flammable dust areas performance; (20) Partly coated electrode; (D) Cable outlet; (NC) Output type PNP with closed state at non-activated electrode; (M30) Metric thread M30x1,5 process connection; (E430) Electrode length 430 mm. DLS–27 © Dinel, s.r.o. -
Page 18: Accessories
11:2012, EN 60079-31:2014. Explosion proof DLS–27Xd is verified FTZÚ – AO 210 Ostrava – Radvanice: FTZÚ 10 ATEX 0092X. A declaration of conformity was issued for this device in the wording of Act No. 90/2016 Coll., as amended. Supplied electrical equipment matches the requirements of valid European directives for safety and electromagnetic compatibility. Special conditions for safe use of variant DLS-27Xi (XiT, XiM, XiMT) If the apparatus is used as device of Group II and with using of an approved power supply device, which output parameters comply with required input parameters, it is necessary to have an galvanic separation or in case of apparatus without galvanic separation (Zener barriers) it is necessary to provide equipotential equalizing between sensor and barrier earthing point. If the apparatus is used in coal mine as device of Group I and with using of an approved power supply device, which output parameters comply with required input parameters it is necessary to have an galvanic separation. When used in zone 0 the present explosive atmosphere of air mixture and gases, vapours of mists must be comply with: 20°C ≤ Tamb ≤ 60°C, 0.8 bar ≤ p ≤ 1.1 bar. Design DLS–27Xi can be used in zone 0 or zone 20. With design DLS–27XiT can be used in zone 0 and zone 20 only electrode part head with electronics can be used only in zone 1 or zone 21. Ambient temperature: Tamb = -20°C to +75°C Temperature of measured medium according to design variant see chapter “Specification”. © Dinel, s.r.o. DLS–27... -
Page 19: Use, Manipulation And Maintenance
PROCEDURE FOR SHORTENING THE MEASURING ELECTRODE ON VARIANT 40 1. At the rope electrode, it is necessary to loosen three fastening screws on the weight and to pull out the end of the rope, see fig. 19. 2. Make sure that the rope length is correct after shortening – the rope is suspended in the weight up to a distance of approximately 50 mm. Ideally, shorten the rope us- ing diagonal cutting pliers. Be careful to prevent the end of the cable from fraying. 3. Insert the end of the rope back into the weight and secure it in place by tightening all three screws. Fig. 19: Picture of the rope with the weight DLS–27 © Dinel, s.r.o. -
Page 20: General, Conditions And Warranty
This guarantee does not cover the damages resulting from misuse, improper installation or incorrect maintenance. DLS-27N_-__-_-NO_-___ DLS-27N_-__-_-NO_-___ E____ E____ Cable: __ m Cable: __ m No.: ______ No.: ______ Dinel, s.r.o. 7 ... 36 V This guarantee ceases when the user or the other person makes any changes on the product or the U Tescomy 249 3 / 10 mA 760 01 Zlín 200 mA Czech Republic omax product is mechanically or chemically damaged, or the serial number is not readable. IP67 www.dinel.cz... - Page 21 Cable: __ m No.: ______ II 1 D Ex ia/tb [ia] IIIC 78 °C Da/Db Dinel, s.r.o. II 1/2D Ex ia/tb [ia] IIIC T78°C Da/Db IP67 U Tescomy 249 U = 7 ... 33 V I = 3 / 10 mA Dinel, s.r.o.
- Page 22 Cable: __ m No.: ______ Symbol of producer: logo Dinel ® FTZÚ 02 ATEX 0234X II 1 G Ex ia IIB T6 Ga Dinel, s.r.o. Contact: Dinel,s.r.o., U Tescomy 249, 760 01 Zlín, www.dinel.cz U Tescomy 249 U = 12 V I = 15 mA P = 45 mW 760 01 Zlín...
-
Page 23: Technical Specifications
W.Nr. 1.4404 (AISI 316 L) DLS-27_-10,11,20,21,22,30,31 Electrode DLS-27_-40 W.Nr. 1.4401 (AISI 316) Electrode coating DLS – 27_– 11 Teflon PTFE (Polytetrafluoroethylene) ® DLS – 27N– 20, 21, 31 Electrode coating Teflon FEP (Fluorinated ethylene propylene) ® DLS – 27Xi– 21, 31 Electrode coating DLS – 27Xd(Xi, XiT) – 20 Electrostatically conductive PTFE Ex Electrode coating DLS – 27_– 22 Teflon PFA (Perfluoroalkoxy) ® Weight DLS-27_-40 W.Nr. 1.4301 (AISI 304) * On request can be selected other type of material. DLS–27 © Dinel, s.r.o. - Page 24 Intrinsically s afe e xplosion-proof p erformance f or u se i n m ines w ith t he o ccurrence o f m ethane o r c oal d ust DLS – 27XiM I M2 Ex ia I Mb with intrinsically safe supply units. Intrinsically safe high-temperature explosion-proof performance for use in mines with the occurrence DLS – 27XiMT of methane or coal dust I M2 Ex ia I Mb with intrinsically safe supply units. Process connection Type Size Marking Pipe thread G 3/4'' Metric thread M27x2 Metric thread M30x1,5 Jointless connection (Tri-Clamp) (DN 20) ø 34 mm Cl34 Type of output Output Variants NPN (NC; NO) N, NT, Xd PNP (PC; PO) N, NT, Xd NAMUR (RC; RO) Xi, XiM, XiT, XiMT © Dinel, s.r.o. DLS–27...
- Page 25 – explosion hazard Zone 20 zone with a dust ignition hazard – Variant Variant N, Xi, XiM NT, XiT, XiMT Fig. 20: Illustration of areas for temperature measurement and explosive zones DLS–27 © Dinel, s.r.o.
-
Page 26: Packings, Shipping And Storage
(longer than 100 mm) and of reference tubes in order to prevent damage to electrode and tubes, tearing of the package or injury of persons handling them. Remove the cover prior to putting into operation. © Dinel, s.r.o. DLS–27... -
Page 27: Faq (Frequently Asked Questions)
The decrease of the sensitivity did not help. Does the dust badly affect the function No. The dust have almost no effect to function (as similar as dry of DLS sensors? non-conductive adhered rests of material). The state of sensor changes only when the mass of material covers the electrode. The different situation is when the insulating bushing is covered by mix- ture of condensed water and dust. These problems can be solved by type choice of sensor and right sensitivity setting Does the DLS sensor react on foams There exist various foams and capacitive sensors react on them on the level? differently. When the base of foam is electrically conductive solution (e.g. bear) we can DLS sensor use for foam detection, but it is pos- sible to make them on foams insensitive (by means of type choice, sensitivity setting). The DLS sensors are generally insensitive on foams from non-conductive liquids (plant oils) DLS–27 © Dinel, s.r.o. - Page 28 Dinel, s.r.o. U Tescomy 249 760 01 Zlín Czech Republic Phone: +420 577 002 002 Fax: +420 577 002 007 E-mail: sale@dinel.cz www.dinel.cz Find the updated version at www.dinel.cz version: 08/2017 01/2019...
Need help?
Do you have a question about the DLS-27 Series and is the answer not in the manual?
Questions and answers