Instruction Manual. DSRn. Density & Sound Velocity Transducers

Transcription

1 Instruction Manual DSRn Density & Sound Velocity Transducers

2

3 Instruction Manual DSRn Density & Sound Velocity Transducers

4 While every precaution has been taken in the preparation of this document, Anton Paar GmbH assumes no responsibility for technical or printing errors or omissions. Nor is any liability assumed for damages resulting from the use of the information contained in this instruction manual. Anton Paar GmbH does not make a commitment to update the information in this manual. Specifications are subject to change without notice. All rights reserved (including translation). No part of this document may be translated, reproduced or distributed in any form (print, photocopy, microfilm or any other process) without the prior written permission of Anton Paar GmbH. Trade marks may be used in this instruction manual without being marked as such. These are the property of their respective owners and are legally protected. Published by Anton Paar GmbH. Printed in Austria. Copyright 2004 Anton Paar GmbH, Graz, Austria Contact: Anton Paar GmbH Anton-Paar-Str. 20 A-8054 Graz / Austria - Europe Tel: Fax: Date: info@anton-paar.com Web: Document number: XDPIB05F.fm

5 Contents 1 Safety Instructions Symbols in the Instruction Manual Supplied Items Principle of Measurement and Design Instructions for Mounting Mounting Position Bypass Installations Cleaning and Rinsing Considerations Installation in Hazardous Areas Electrical Wiring Properties of the Transducers Dimensions Connection to the Transducer Trouble Shooting Technical Specifications Document Numbers Appendix A: CE Declarations of Conformity Appendix B: EC-Type-Examination Certificate Appendix C: ATEX-Table-Overview Appendix D: Feedback Form XDPIB05 5

6 6 XDPIB05

7 1 Safety Instructions 1 Safety Instructions This instruction manual does not claim to address all of the safety issues associated with the use of the DSRn transducer and samples. It is the responsibility of the user to establish health and safety practices and determine the applicability of regulatory limitations prior to use. Before using the DSRn transducer, read this instruction manual completely. Every DSRn transducer needs to be connected to an evaluation unit. Read the instruction manual of the evaluation unit before putting the density measuring system into operation. Anton Paar GmbH only warrants the proper functioning of the DSRn transducer if no unauthorized adjustments have been made to mechanical parts, electronic parts and software, and the following points are adhered to. Follow all hints, warnings and instructions in the instruction manual to ensure the correct and safe functioning of the DSRn transducer. Do not use the DSRn transducer for any purpose other than described in the instruction manual. Anton Paar GmbH is not liable for damages caused by incorrect use of the DSRn transducer. Do not use any accessories other than those supplied or approved by Anton Paar GmbH. The installation procedure should only be carried out by authorized personnel who are familiar with the installation instructions. Do not operate the DSRn transducer if a malfunction is suspected, or damages, injuries or loss of life cannot be excluded under all circumstances. Do not install transducers or evaluation unit of Anton Paar GmbH in areas with strong electromagnetic fields, which can cause instable measuring results. Service and/or maintenance procedures which involve removing outside covers and working with the power switched on may only be performed by authorized service personnel. Ensure that all operators are fully trained to use the DSRn transducer correctly and safely. Due to the nature of the measurement, the measuring results not only depend on the correct use and functioning of the DSRn transducer, but may also be influenced by other factors. We therefore recommend that the analysis results are plausibility tested before consequential actions are XDPIB05 7

8 taken. Repair and service procedures may only be carried out by authorized personnel or by Anton Paar GmbH. Dispose of the DSRn transducer according to the country-specific legal requirements. DSRn transducers are typically subject to harsh process conditions like shock pressure, sudden temperature changes, aggressive samples, vibrations, etc. Thus, drifts or malfunctions of the transducer may occur. It is therefore indispensable to continuously check the measuring results and to carry out readjustments, if required. Check the chemical resistance of the transducer materials which come in contact with the sample or cleaning agents before installing the DSRn transducer. Intrinsically safe DSRn transducers All intrinsically safe DSRn transducers delivered in July 2003 and later must be certified according to ATEX (Directive 94/9/EG) and must have a EC-Test- Examination Certificate. This is to be delivered to the end user for being allowed to put the instrument into operation. Do not operate DSRn transducers in hazardous atmospheres, if they are not marked with the Ex-sign. When using Ex-types of DSRn transducers, refer also to all instructions contained in the accompanying intrinsic safety certificates and the corresponding norms. Conformity of the operational circumstances of the transducer with the specifications on the Ex-Type-Plate and in the EC-Test-Examination Certificate is to check before installation. DSRn transducers installed in the hazardous area must be connected to an electrical source mounted outside the hazardous area (transformer IPS 501). The specifications for the selection of the connecting cable (maximum cable capacity and inductivity) result from the maximum external capacity / inductivity of the electrical source (transformer IPS 501 minus the inner capacity / inductivity of the transducer. Values are mentioned in the relative EC-Test-Examination Certificate. The housing of the DSRn transducer grounding has to be connected with the transformer IPS 501 (see the relative handbooks). Repairs of the unit have to be performed by Anton Paar GmbH. Modifications of the instrument are not allowed at all. 8 XDPIB05

9 1 Safety Instructions With the Ex-Type-Plate according to ATEX Anton Paar GmbH certifies, that the DSRn transducer is produced in accordance with the certified documents together with the EC-Test-Examination Certificate. EC-Test-Examination Certificate and CE Declaration of Conformity are included in this handbook. XDPIB05 9

10 1 Safety Instructions 10 XDPIB05

11 2 Symbols in the Instruction Manual 2 Symbols in the Instruction Manual The following symbols are used in the instruction manual: Warning: The "Warning" sign indicates a hazard. It calls attention to an operating procedure, practice, etc. which, if not correctly performed or adhered to, could result in injury or loss of life. Do not proceed beyond a "Warning" sign until the indicated conditions are fully understood and met. Important: The "Important" sign indicates a hazard. It calls attention to an operating procedure, practice, etc. which, if not correctly performed or adhered to, could result in damage or destruction of the instrument or parts of it. Do not proceed beyond an "Important" sign until the indicated conditions are fully understood and met. Hint: The "Hint" sign calls attention to any additional information which might be of use to the operator. XDPIB05 11

12 12 XDPIB05

13 3 Supplied Items 3 Supplied Items Hints: The Anton Paar DSRn transducer has been tested and packed carefully before shipment. However, damage may occur during transport. If the Anton Paar DSRn transducer or a supplied item has been damaged during transport, please contact the transport firm as well as your local Anton Paar representative. Keep the packing material for examination through the transport firm or an insurance representative. If any part is missing, please contact your local Anton Paar representative. Supplied items: Pcs. Article 1 Anton Paar DSRn transducer 1 Instruction manual 1 Data sheet with the unit-specific constants for density and sound velocity (data sheets refer to the serial number of the DSRn transducer) XDPIB05 13

14 3 Supplied Items 14 XDPIB05

15 4 Principle of Measurement and Design 4 Principle of Measurement and Design Principle of measurement: The density of a material is defined as its mass divided by the volume. With DSRn transducers, the density measurement is based on measuring the period of oscillation of a mechanical oscillator operated at its natural frequency. The mechanical oscillator consists of a U-shaped tube, containing the sample, which is flowing continously. The period of oscillation depends on the density of the sample within the mechanical oscillator and the mechanical properties of the oscillator like inner diameter, wall thickness, elasticity, etc. of the tube. Both the density of the sample and the mechanical properties of the tube depend on the temperature. Therefore also the temperature is measured and transmitted. A twin cable is used to transmit both the temperature and period of oscillation to the evaluation unit and to provide power to the transmitter. The sound velocity "v s " is defined as the distance "s" divided by the propagation time "t", which a sound pulse needs to pass through this distance. v s = s / t Ultrasonic pulses are generated using a piezo-electric transmitter. The pulses are going from the transmitter through the sample to the receiver. The sample flows between the transmitter and the receiver. The propagation time of this ultrasonic pulse is measured, and converted into a periodic signal. The period of oscillation is the propagation time multiplied by 256. Both the sound velocity of the sample and the mechanical properties of the transducer depend on temperature. Therefore also the temperature is measured and transmitted. A twin cable is used to transmit temperature and period of oscillation to the evaluation unit and to provide power to the transducer. XDPIB05 15

16 4 Principle of Measurement and Design Fig. 4-1 Density calculation: The evaluation unit mpds 2000V3 calculates the density from period of oscillation and temperature in the following way: ρ = DA x P 2 x (1 + DA1 x t + DA2 x t 2 ) - DB x (1 + DA3 x t) ρ... P... t... DA, DB, DA1, DA2, DA3... density period of oscillation temperature transducer constants (density) Calculation of the sound velocity: The evaluation unit mpds 2000V3 calculates the sound velocity from the period of oscillation and the temperature in the following way: 16 XDPIB05

17 4 Principle of Measurement and Design SA x (1 + SA1 x t) v s (t) = P - SB x (1+ SA2 x t+ SA3 x t 2 ) v s... P... t... SA, SB, SA1, SA2, SA3... sound velocity period of oscillation temperature transducer constants (sound velocity) DSRn transducer constants: The density-related DSRn transducer constants DA and DB represent the mechanical properties of the oscillating tube (inner diameter, wall thickness, elasticity,...), while transducer constants DA1, DA2 and DA3 provide for the compensation of the temperature influence on these properties. The sound velocity-related DSRn transducer constants SA and SB represent the mechanical properties of the sensor (path length and delay time), while the transducer constants SA1 SA2 and SA3 provide for the compensation of the temperature influence on these properties. The constants for each sensor are provided with the DSRn transducer on a data sheet for density and another for sound velocity. They are specific for a single DSRn transducer and are only valid in the temperature range specified on these data sheets. Temperature and pressure influence on density and sound velocity: The evaluation units provide means to compensate the temperature influence on the density and the sound velocity of the sample. Sample densities and sound velocities are also influenced by variations of pressure. If necessary, the pressure can be measured and its influence on the sample density and sound velocity compensated in the evaluation unit. The influence of pressure variation is by far smaller than that of temperature variations. The influence of the average process pressure will be eliminated by adjusting the results on-site. Similar considerations are valid in case of variations of the flow rate through the transducer. DSRn transducers have a considerable thermal mass, causing thermal inertia. Therefore sudden temperature changes will result in a transient deviation of the measured values from the true density. A practical limit for temperature changes to avoid transient deviations of the displayed result is between 0.1 and 1 C/min. XDPIB05 17

18 4 Principle of Measurement and Design Design considerations of the different DSRn transducers: Every DSRn transducer consists of a splash- and dust-proof housing (degree of protection IP65), into which the mechanical oscillator, the electromagnetic excitation system and the sound velocity sensor with its temperature sensor are built. In a separate housing attached to the main housing the electronics and the screw terminals of the density and the sound velocity sensor are contained. Different tube materials is available for DSRn transducers. The designation of each DSRn transducer provides the information about the main properties: Accuracy class Oscillator material (1) 2 Special materials: Hastelloy C276 (2.4819) Incoloy 825 (2.4858) Inner diameter of the oscillating tube 7 6.6/7 mm DSRn427 The Anton Paar DSRn transducers stand out for: High sensitivity and repeatability. Built in high resolution temperature measurement, low thermal inertia. Virtually no influence of pressure, flow and viscosity variations, when installed properly. Rugged, varnished, cast aluminium housing for outdoor use, splash- and dust-proof according to IP 65. Maintenance free with long operating life time when used correctly. 18 XDPIB05

19 5 Instructions for Mounting 5 Instructions for Mounting DSRn transducers may either be installed in the main line or in a bypass. In any case, the maximum specified flow rate for each DSRn transducer should not be considerably exceeded. If the flow rates in the main line are considerably higher than the upper limit of the flow rate of the selected DSRn transducer, then a bypass installation is necessary. Hint: Density measurement is interfered by gas bubbles in the sample. To avoid the formation of gas bubbles, a minimum pressure is necessary to keep dissolved gases in solution. This minimum pressure should be: P min = 2 x partial pressure of the dissolved gas or P min = 2 x vapor pressure of the most volatile liquid component 5.1 Mounting Position The DSRn transducer should be mounted on a rigid, vibration free base. If this is not available, it is recommended to use vibration dampers made of e.g. rubber between the DSRn transducer and the mounting base. Connection lines must not transmit vibrations to the DSRn transducer. Use flexible hoses or proper supports. The orientation of the DSRn transducer with respect to the in- and outlet can be randomly selected. However, if there is a danger of deposits of solids or occurrence of gas bubbles, then the DSRn transducer should be mounted horizontally (see figures and 5.1-2). XDPIB05 19

20 5 Instructions for Mounting Fig Fig Bypass Installations For the bypass installation the use of in- and outlet valves is recommended. Additionally, a sampling valve should be provided. The tubes and hoses of the bypass should be made short and free of unnecessary edges, bows and loops. Hint: The DSRn transducer should be located at the same level as the main line. Thus, the formation of gas-filled cavities is avoided, which may restrain the necessary flow of sample through the transducer. There are several possibilities to generate the pressure difference necessary to force a proper flow of sample through the bypass: 20 XDPIB05

21 5 Instructions for Mounting 1. Bypass with pump: > 1 m PI Flow adjustment Sampling outlet Fig This is recommended, when increased pressure is necessary in the DSRn transducer to avoid the formation of bubbles or to compress and dissolve them before the sample enters the transducer. A bypass pump is also necessary, when the flow in the main line is varying to a large extend or start/stop flow conditions are given. Between the pump and the DSRn transducer a minimum of 1 m of tube should be provided. The inner diameter of the bypass should be 2-5 times the inner diameter of the density transducer. The distance between the inlet and the outlet of the bypass at the main line should be at least 1 m. XDPIB05 21

22 5 Instructions for Mounting 2. Bypass over main pump: PI Flow adjustment Sampling outlet Fig The length of the hose or tube between the outlet of the bypass and the DSRn transducer needs to be at least 1 m. The diameter of the bypass tubes should be 1-2 times the inner diameter of the density transducer. Important: Pumps built into the main line often generate a much higher pressure than acceptable for a reasonable flow rate through the bypass. Therefore it is very important to adjust the flow through the bypass properly using the outlet valve. 22 XDPIB05

23 5 Instructions for Mounting 3. Bypass with valve in the main line: PI Flow adjustment Sampling outlet Fig This is only recommended if the sample is free of fibres and undissolved solids. Variations of the flow rate in the main line must be small. The inner diameter of the bypass tubes should be 1-2 times the inner diameter of the density transducer. 4. Narrowing in the main line: PI Flow adjustment Sampling outlet Fig Variations of the flow rate in the main line must be small. The inner diameter of the bypass tubes should be 1-2 times the inner diameter of the density transducer. XDPIB05 23

24 5 Instructions for Mounting 5. Bypass with Venturi tube in the main line: PI Flow adjustment Sampling outlet Fig Variations of the flow rate in the main line must be small. The inner diameter of the bypass tubes should be 1-2 times the inner diameter of the transducer. 6. How to adjust the flow rate through the bypass: The method described below applies to aqueous solutions. A pressure gauge is necessary at the outlet of the DSRn transducer. 1. Open the inlet valve to the bypass completely and close the outlet of the bypass completely. 2. Slowly open the outlet until the pressure shown on the pressure gauge has dropped bar below the pressure measured at point 1. Hint: To avoid the formation of gas bubbles, a minimum pressure is necessary to keep dissolved gases in solution. This minimum pressure should be: P min = 2 x partial pressure of the dissolved gas or P min = 2 x vapor pressure of the most volatile liquid component 24 XDPIB05

25 5 Instructions for Mounting 5.3 Cleaning and Rinsing Considerations In many applications, cleaning of the measuring cell is automatically done by the CIP procedures applied for the whole production line. If there is a danger of buildups of solid residues in the density transducer, then additional cleaning and rinsing may be necessary. Cleaning agent inlet Flow adjustment PI Sampling outlet Fig Cleaning agent outlet 5.4 Installation in Hazardous Areas The main components of intrinsically safe DSRn transducers have a special type plate with the Ex-sign. EC-Type-Examination Certificates are provided for the DSRn transducer and the necessary buffer amplifier IPS 501. The buffer amplifier IPS 501 and the evaluation unit mpds 2000 or mpds 4000 are to be located outside of the hazardous area. XDPIB05 25

26 5 Instructions for Mounting Warning: Follow all instructions and hints contained in the provided certificates and on the type plates, when installing or servicing the devices. Additionally, the corresponding national or international norms for installing intrinsically safe equipment have to be fulfilled. 5.5 Electrical Wiring Earth (ground) terminal: A screw terminal for earth connection is provided on the housing of every DSRn transducer. This has to be connected with on-site earth. Warning: Intrinsically safe DSRn transducers require an additional connection between this earth terminal and the earth terminal of the buffer amplifier IPS 501, which is installed outside of the hazardous area (see EC Type-Examination Certificate). Connecting the DSRn transducer to the evaluation unit: One shielded twin cable for the electronics is recommended to connect the DSRn transducer to the evaluation unit. An outer diameter of the cable between 4 and 8 mm provides optimum tightness of the cable gland. The resistance of the cable between the DSRn transducer and the evaluation unit must not exceed 100 Ω. Open the cover of the electronic box to connect the cable to the terminals of the DSRn transducer. Make sure that no humidity or other contaminations are introduced into the electronic box. Connect the two leads of the twin cable according to fig Connect the shield of the cable with the cable gland. Warning: DSRn transducers located in a hazardous area are to be connected to a certified intrinsically safe supply unit. For the selection of the cable maximum allowed capacity and inductivity is to observe. The indications in the CE-Test-Examination Certificates are to take into consideration. The ground terminal of the density transducer is to connect galvanically with the ground terminal of the supply unit, the last mounted outside the hazardous area. 26 XDPIB05

27 5 Instructions for Mounting Inside the hazardous area Outside the hazardous area Intrinsically safe densitytransducer IPS (-110) + Intrinsically safe output To the evaluation unit mpds 2000 Fig (115) V At Umax=12.7 V= Imax=76mA : Power supply Max. Capacity of cable = 250 nf - Ci (EN50020) Ci: Sum of the inner capacities of all connected units (see certificates) Max. Inductivity of cable = 7,5 mh - Li (En50020) Li: Sum of the inner inductivities of all connected units (see certificates) Screw terminals in the electronic box (fig ) + to be connected to the "+" terminal of the evaluation unit - to be connected to the "-" terminal of the evaluation unit Shield Cable to evaluation unit Screw terminals Fig XDPIB05 27

28 5 Instructions for Mounting Important: The cable gland has to be securely tightened. Make sure that the O-ring of the cover is correctly placed in the groove before tightening the cover of the electronic box. This is indispensable to maintain IP 65 tightness. 28 XDPIB05

29 6 Properties of the Transducers 6 Properties of the Transducers 6.1 Dimensions Fig Connection to the Transducer The transducers DSRn 427 Hastelloy and DSRn 427 Incoloy are supplied with parallel threads ISO G3/8. Inner diameter is 6 mm. The material of the threaded ends is Hastelloy C 276 (DSRn 427 Hastelloy) or Incoloy 825 (DSRn 427 Incoloy). Connections of flexible hoses with flat washers are recommended. XDPIB05 29

30 6 Properties of the Transducers 30 XDPIB05

31 7 Trouble Shooting 7 Trouble Shooting Problems like incorrect or fluctuating measuring values, no measuring values and error messages on the evaluation unit can be the result of malfunctions of the DSRn transducer or can be caused by certain process conditions. On-site repairs of DSRn transducers are typically not possible. Normally the complete DSRn transducer has to be exchanged. DSRn transducers allow the exchange of the sensor, the electromagnetic excitation system or the transducer electronics. This requires auxiliary tools and trainings and therefore can be carried out by authorized sales and service personnel only. In order to distinguish between malfunctions of the DSRn transducer and problems caused by special process conditions, the following can be checked: Problem: Checks: No signal from the DSRn transducer Error message on mpds 4000: E 0X 001 (which cannot be removed by pressing CLR or resetting the system) Error message on mpds 2000: CELL DROP OUT Open the cover of the electronic box of the DSRn transducer and measure the voltage between the "+" and "-" terminals: If a DC voltage of approximately 15 V (in case of intrinsically safe DSRn transducers approximately 12 V) cannot be detected, then a problem with the connecting cable may be given. If that voltage cannot be detected at the "+" and "-" terminals of the evaluation unit or the IPS 501 buffer amplifier, then the problem may be at these devices. For intrinsically safe devices a DC voltage of approx. 15 V should be present on the cable between the evaluation unit and the IPS 501. From the IPS 501 at the DSRn transducer 12 V should be present. To detect whether the IPS 501 is the source of the problem, it is also possible to connect the DSRn transducer directly to the evaluation unit. For this purpose the DSRn transducer has to be removed from the hazardous area. XDPIB05 31

32 7 Trouble Shooting Problem: Checks: Constant deviation between the displayed density and the reference value Reset the evaluation unit and check density again. Check the transducer constants stored in the evaluation unit. Compare the temperature measuring results of the DSRn transducer with a properly calibrated external temperature measuring device. If the deviation is greater than 0.5 C, then the DSRn transducer should be removed for factory repair. Let pure water flow through the transducer, e.g. by disconnecting the transducer and connecting it to a thermostating bath. The temperature of the water should be in the range of the works adjustment performed with the DSRn transducer. If an approximately correct measuring value is displayed, then the cause of the problem may be some special process conditions. Frequent problems are caused by a too low flow rate, gas bubbles in the sample,... If the displayed density or sound velocity for water is incorrect, this may have following causes: - The transducer was overstressed by e.g. pressure shock, temperature shock,... If the deviation from the true value is large, a readjustment will not lead to sufficient results. In this case the DSRn transducer should be removed for factory repair. - Contaminations in the mechanical oscillator: Insufficient cleaning may cause the formation of a solid layer in the mechanical oscillator, which leads to a deviation of the displayed result. Try to clean the oscillator with proper solvents for the type of contamination. 32 XDPIB05

33 7 Trouble Shooting Problem: Checks: Drift of the measuring values Check the temperature measurement of the DSRn transducer with a calibrated external temperature probe: If the temperature deviation is higher than 0.5 C, then remove the DSRn transducer for factory repair. If the temperature measurement is correct, the following reasons for the drift may be given: The formation of a layer of deposits on the mechanical oscillator. These can be removed by applying proper cleaning procedures. Corrosion of the mechanical oscillator due to aggressive or abrasive samples. Small deviations caused by this may be readjusted. In case of larger deviations a factory repair is necessary. If the drifts continue to occur, a factory repair and possibly selecting a different material for the sensors is recommended. Warning: The intrinsically safe DSRn transducers and the buffer amplifiers IPS 501 should be factory repaired only. If this is not adhered to, all certificates of compliance are invalid and compliance has to be checked by an authorized body. XDPIB05 33

34 7 Trouble Shooting 34 XDPIB05

35 8 Technical Specifications 8 Technical Specifications Input ratings: The transducer is supplied from the connected mpds evaluation unit. V DC < 13 V= I < 76 ma Input ratings of intrinsically safe density transducers see the relative EC Type- Examination Certificate. Environmental conditions: Ambient temperature -25 to +40 C Humidity 10 to 95 % not condesing XDPIB05 35

36 8 Technical Specifications The following table contains the most important properties of the different DSRn transducers: Type DSRn 427 Hastelloy DSRn 427 Incoloy Measuring range (total) 0 to 3 g/cm 3, 800 to 3000 m/s 0 to 3 g/cm 3, 800 to 3000 m/s Temperature range (total) intrinsically safe -25 to 125 o C max. 80 C -25 to 125 o C max. 80 C Max. Pressure 50 bar 50 bar Flow rate (Water) 100 to 500 l/h 100 to 500 l/h Accuracy 5 x 10-5 g/cm m/s < 0.1 o C 0.1 to 0.01% Concentration, depending on sample Repeatability 1 x 10-5 g/cm m/s 0.01 o C 1 x 10-4 g/cm m/s < 0.1 o C to 0.01% Concentration, depending on sample 1 x 10-5 g/cm m/s 0.01 o C Tube material Hastelloy C 276 Incoloy 825 Process Connections Thread ISO G 3/8" (parallel) Thread ISO G 3/8" (parallel) Inner Diameter 6.6 mm 6.6 mm Intrinsically Safe Type available ATEX ATEX 36 XDPIB05

37 9 Document Numbers 9 Document Numbers Document number Date Comment XDPIB05B Formula for calculation of sound velocity corrected XDPIB05C DSR -> DSRn Electronics in one housing XDPIB05D DSRn series Version on each page Redesign XDPIB05E Supplied Items Details (drawings) XDPIB05F ATEX adaptation XDPIB05 37

38 Appendix A: CE Declarations of Conformity Appendix A: CE Declarations of Conformity See next pages: 38 XDPIB05

39 Appendix A: CE Declarations of Conformity XDPIB05 39

40 Appendix A: CE Declarations of Conformity 40 XDPIB05

41 Appendix B: EC-Type-Examination Certificate Appendix B: EC-Type-Examination Certificate See next pages: XDPIB05 41

42 Appendix B: EC-Type-Examination Certificate 42 XDPIB05

43 Appendix B: EC-Type-Examination Certificate XDPIB05 43

44 Appendix B: EC-Type-Examination Certificate 44 XDPIB05

45 Appendix B: EC-Type-Examination Certificate M6 M7 M10 f out V DD GND Pick-up coil Sense coil. DSR 417 /427 Wiring Diagramn "I". B45Y089-A XDPIB05 45

46 Appendix C: ATEX-Table-Overview Appendix C: ATEX-Table-Overview See next page 46 XDPIB05

47 Appendix C: ATEX-Table-Overview Anton Paar GmbH Anton-Paar-Str. 20 A-8054 Graz ATEX Intrinsically Safe Anton Paar Transducers and Transmitters Overview Intrinsically safe Transducers and Transmitters from Anton Paar DPRn 417I, 427I, 407I, 412I, 422I and 4122I DTR 417I, 427I, 407I, 412I, 422I and 4122I ATEX category Permitted medium temperature in the temp. classes T5 and T6 Internal inductance and internal capacitance II 2G EEx ia II C T6 T6..medium temp. 80 C Li 0 Ci 12 nf II 2G EEx ia II B T5 T5..medium temp. 100 C Li 0 Ci 120 nf DSRn 417I, 427I II 2G EEx ia II B T6 T6..medium temp. 80 C Li 0 Ci 120 nf DPR 316 NI and FI II 2G EEx ia II C T6 T6..medium temp. 80 C Li 0 Ci 12 nf SPRn XXXX I II 2G EEx ia II B T6 T6..medium temp. 80 C Li 0 Ci 12 nf STR XXXX I II 2G EEx ia II B T5 T5 medium temp. 100 C Li 0 Ci 120 nf Explanation of the ATEX category: II 2G EEx ia II C T6 or II 2G EEx ia II B T5 (examples) EX in a hexagon: explosion protection in compliance with ATEX II Group II: all Ex areas except mines 2G Category, 2G: intermittently present flammable Gas-atmosphere (Zone 1) EEx Explosion protection in compliance with CENELEC ia Protection concept, intrinsically safe with two countable faults II Explosion group: all Ex areas except mines C Gas group C: test ignition energy <20 µj B Gas group B: test ignition energy <80 µj T6 Temperature class 6; highest permissible surface temperature 85 C T5 Temperature class 5; highest permissible surface temperature 100 C Explanation: the surface temp. does not exceed 85 C (T6) or 100 C (T5) Category of permitted associated intr. safe devices Maximum electrical values of the associated intrinsically safe devices [EEx ia] II C U 12.7V I 76 ma P 770mW [EEx ia] II B or [EEx ia] II C [EEx ia] II B or [EEx ia] II C Power supply: U 25V I 190mA linear relationship: Ri 131 Ohm Power supply for analog output: U 28V I 100mA linear relationship: Ri 280 Ohm U 12.7V I 76 ma P 770mW [EEx ia] II C U 12.7V I 76 ma P 770mW [EEx ia] II B or [EEx ia] II C [EEx ia] II B or [EEx ia] II C Connecting cable: The specifications for internal inductance and internal capacitance must be taken into consideration when selecting the dimensions (length) of the connecting cable to the accompanying intrinsically safe device (e.g.: IPS501. mpds1000 or transmitter supply). The cable capacitance plus the internal capacitance (Ci) must be smaller than the max. external capacitance of the associated intrinsically safe device. The cable inductance plus the internal inductance (Li) must be smaller than the max. external inductance of the accompanying intrinsically safe device. U 12.7V I 76 ma P 770mW Power supply: U 25V I 190mA linear relationship: Ri 131 Ohm Power supply for analog output: U 28V I 100mA linear relationship: Ri 280 Ohm Potential equalization cable: Applies for all Anton Paar Transducers and Transmitters Between the intrinsically safe Transducer or Transmitter and the associated intrinsically safe device (IPS 501, mpds1000 or transmitter supply) there must be a potential equalization connection. Reason: In the intrinsically safe device there is an intrinsically safe grounded circuit. The potential equalization cable must be connected to the outer screw terminal provided for earth connection. No responsibility is accepted for the correctness of this information. The information is only intended to give an overview. The relevant data should be taken from the corresponding Certificates. Document: ATEX_AntonPaar_e GKcorr1.doc Last saved: 1 / 1 Author: G.Kerschbaumer Last printed: XDPIB05 47

48 Appendix D: Feedback Form Appendix D: Feedback Form Please help us improve this instruction manual and our service to you! If you have any suggestions, comments or problems concerning the contents of this instruction manual, please do not hesitate to contact us: or copy and fax this form to: Instrument type:... Year of purchase:... Name and address: The instruction manual should contain more information on: The following sections are difficult to understand: Other comments: Thank you for your feedback! 48 XDPIB05