Type 8041 Insertion electromagnetic flowmeter Magnetisch-induktives Durchfluss-Messgerät, Insertion Débitmètre électromagnétique à insertion Operating Instructions Bedienungsanleitung Manuel utilisateur
We reserve the right to make technical changes without notice. Technische Änderungen vorbehalten. Sous réserve de modifications techniques.
Type 8041 1. About this manual..................................................................................3 6.4. General data........................................................................................ 11 1.1. Symbols used........................................................................................3 6.5. Electrical data..................................................................................... 12 1.2. Definition of the word "device"...............................
Type 8041 Parameterizing modes................................................................... 30 9.4. Selecting the frequency of the main supply...................... 32 9.5. Filter selection.................................................................................... 32 9.6. Selecting the measurement range.......................................... 33 9.7. Calibrating the flow zero point.................................................. 33 9.8. Calibrating the full scale........................
Type 8041 About this manual 1. About this manual This manual describes the entire life cycle of the device. Please keep this manual in a safe place, accessible to all users and any new owners. note Warns against material damage. • Failure to observe this warning may result in damage to the device or system. This manual contains important safety information. Indicates additional information, advice or important recommendations.
Type 8041 Intended use 2. Intended use Use of the device that does not comply with the instructions could present risks to people, nearby installations and the environment. • The 8041 flowmeter is intended exclusively to measure the flow rate in liquids. • This device must be protected against electromagnetic interference, ultraviolet rays and, when installed outdoors, the effects of climatic conditions.
Type 8041 Basic safety information note Various dangerous situations (cont'd) To avoid injury take care: • not to use the device for the measurement of gas flow rates. • not to use the device in explosive atmospheres. • not to use the device in an environment incompatible with the materials it is made of. • not to subject the device to mechanical loads (e.g. by placing objects on top of it or by using it as a step). • not to make any external or internal modifications to the device.
Type 8041 General information 4. General information 5. Description 4.1. Manufacturer's address and international contacts 5.1. Area of application To contact the manufacturer of the device, use following address: Bürkert SAS Rue du Giessen BP 21 F-67220 TRIEMBACH-AU-VAL You may also contact your local Bürkert sales office. The device is used to measure the flow of neutral or slightly aggressive fluids with a conductivity of more than 20 µS/cm in DN06 to DN400 pipes. 5.2. General description 5.
Type 8041 Description When the fluid flows over them, a voltage is measured between the two electrodes. This voltage is proportional to the fluid velocity. 4. 5. 6. 7. 8. Compact housing Manufacturing code Relay data Conformity logo Warning: Before using the device, take into account the technical specifications described in these operating instructions. 9. Current output 10.Serial number 11.Order code Fig. 1: 5.3. Operating principle of the flow sensor 5.4.
Type 8041 Technical data 6. Technical data 6.1. Conditions of use Ambient temperature Air humidity Protection class acc. to EN 60529 Degree of pollution Installation category Max height above see level 6.2. -10 °C...+60 °C < 80%, non condensated IP65, with cable connected and cable gland tightened and cover screwed on to the electronic module Degree 2 acc. to EN 61010-1 Category I acc. to EN 61010-1 2000 m Conformity to standards and directives Type of fluid Fluid group 1, par. 1.3.
Type 8041 Technical data Parts not in contact with the fluid Part Housing, cover, nut Material • holder of the flow sensor in stainless steel • PPA, glass fiber reinforced • holder of the flow sensor in PVDF Screws of the cover Cable gland Seal of the cover Seal of the cable gland • PC, glass fiber reinforced Holder of the flow sensor Fig.
Type 8041 Technical data Dimension H in mm of the flowmeter 8041 with a G2" nut and inserted into an S020 fitting H Table 3 : Spigot, in plastic T-fitting DN6 DN8 DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100 DN110 DN125 DN150 DN180 DN200 DN250 DN300 DN350 DN400 10 163 163 168 166 166 169 173 179 179 Saddle 204 203 207 221 208 215 225 249 261 English Welding tab with radius, in stainless steel 187 193 200 169 174 180 185 195 233 242 206 217 263 281 293 306 321 238 298 317 329
Type 8041 Technical data Dimension H in mm of the flowmeter 8041 with a clamp connection and inserted into an S020 fitting H Table 4 : Welding socket T-fitting DN32 DN40 DN50 DN65 DN80 DN100 6.4. 181 186 191 199 205 211 181 186 191 199 205 211 General data Fluid temperature The fluid temperature may be restricted by the fluid pressure and the material of the S020 fitting used (see Fig. 6 and Fig. 7). • with holder of the flow sensor in stainless steel • -15...
Type 8041 Technical data P [bar] P (bar) 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 PVDF (PN10) / Metal 10 9 8 PVC + PP 7 6 5 PVC (PN10) 4 3 PP (PN10) 2 1 0 Fig.
Type 8041 Technical data Current output • Type of output • 4-20 mA, sinking or sourcing wiring • Accuracy • ± 1% (0,16 mA) • Refresh time • 100 ms • Max. loop impedance • 1100 W at 36 V DC, 330 W at 18 V DC Frequency output • Frequency • 0-240 Hz • Duty cycle • 50 % ± 1 % • Max current • 100 mA max.
Type 8041 Quick installation The following formulae are used to calculate the K1 and K2 factors needed to convert the current or frequency into a flow rate: Full scale K factor K1 K factor K2 10 m/s K1 = 100 Kfitting K2 = 20 3*Kfitting 5 m/s K1 = 200 Kfitting K2 = 40 3*Kfitting 2 m/s K1 = 500 Kfitting K2 = 100 3*Kfitting where Kfitting = K factor of the S020 fitting used Example: If the full scale of the device is set to 5 m/s, the value of th
Type 8041 Quick installation →→Select the measuring range with switches 4 and 5, see chap. 9.6. →→ Install the device on the pipe. →→Thread the cables through the cable glands and make the connections to the electronic board, see chap. 8.3. No Calibrate the full scale of the installation? yes →→ Calibrate the full scale, see chap. 9.8. →→ Connect the shield on the power cable to the earth, see chap. 8.3. The 10 bargraph LEDs go ON? No →→Fill the pipe. →→Energize the device.
Type 8041 INstallation Green LED flashes once? No, see chap. 10.5 8. INstallation 8.1. Safety instructions danger yes →→Put the cover on the device as dsecribed in Fig. 17, chap. 8.3. Risk of injury due to high pressure in the installation. • Stop the circulation of fluid, cut off the pressure and drain the pipe before loosening the process connections. Tighten the 4 screws of the cover in an alternating pattern. Risk of injury due to high fluid temperatures.
Type 8041 INstallation Warning Risk of injury due to non-conforming installation. • The electrical and fluid installation can only be carried out by qualified and skilled staff with the appropriate tools. • Install appropriate safety devices (correctly rated fuse and/or circuit-breaker). 8.2. Installation onto the pipe 8.2.1.
18 English 0.05 0.1 0.2 0.5 1 2 5 10 20 5000 m3/h 0.2 0.5 1 2 5 10 20 50 100 200 500 1000 2000 3000 5000 10000 20000 1 0.5 3 1 Fluid velocity 0.3 0.3 0.5 0.01 0.1 0.02 0.05 0.1 0.2 0.
Type 8041 INstallation →→Install the device on the pipe to have the upstream and downstream distances respected according to the design of the pipes, refer to standard EN ISO 5167-1 and Fig. 8: →→Respect the following additional mounting conditions to ensure that the measuring device operates correctly: -- We recommend to install the device at a 45° angle to the horizontal centre of the pipe to prevent deposits on the electrodes and false measurements due to air bubbles (see Fig.
Type 8041 INstallation 8.2.2. Vertical mounting flow direction Correct Installation into the pipe of a 8041 with a G2'' nut Observe the installation recommendations described at chap. 8.2.1 and in the operating instructions of the S020. →→Install the S020 fitting on the pipe. →→Insert the nut (see mark 3, Fig. 12) on the fitting. →→Insert the snap ring (mark 2, Fig. 12) into the groove (mark 5, Incorrect Fig. 10: Filling of the pipe Fig. 12).
Type 8041 INstallation 8.2.3. Installation into the pipe of a 8041 with a clamp connection Observe the installation recommendations described at chap. 8.2.1 and in the operating instructions of the S020. →→Install the S020 fitting on the pipe. →→Install the seal (mark 1) on the S020 fitting. 3 →→Make sure that the polarizing pin (mark 2) is on the fitting. →→Insert the device (mark 3) into 4 2 1 the fitting.
Type 8041 INstallation Selector A : Sink/source selector of the 4-20 mA output 3 A 1 2 3 4 5 6 4...
Type 8041 INstallation note Power cable shield The device is not tight if only one or none of the cable glands is used • The device is only tight when the cable glands are either wired or sealed. To seal a cable gland, do the following: →→Loosen the nut of the unused cable gland. →→Remove the transparent disk. →→Insert the supplied stopper gasket. →→Screw the nut of the cable gland. →→Loosen the nuts of the cable glands. →→Insert each cable through a nut than through a cable gland.
Type 8041 INstallation 8.3.1. Wiring the 4-20 mA output 4-20 mA input at external instrument The current output of the 8041 can be connected to a PLC or a valve, either in sourcing mode or in sinking mode. →→Set the selector of the electronic board to the sourcing or the in sinking mode (see Fig. 19). Selector to sink →→Earth the device (see Fig. 18 or Fig. 19). 4-20 mA input at external instrument Selector to source + - Power supply 18-36 VDC * I 1 2 3 4 5 6 4...
Type 8041 INstallation V+ 0V V+ Input I 0V I 8041 1 2 3 4 8041 1 2 3 4 5 6 5 6 4...20 V+ V- PE Pls+Pls4...20 V+ V- PE Pls+Pls- Fig. 20: PNP connection of the frequency output to a PLC Fig. 22: Connection of the frequency output to an electromechanical counter or a relay V2 V1 GND2 GND1 V+ I Input 0V I 8041 1 2 3 4 8041 5 6 4...20 V+ V- PE Pls+ Pls- 1 2 3 4 5 6 4...20 V+ V- PE Pls+Pls- Fig.
Type 8041 INstallation 8.3.3. Wiring the relay output Power supply The relay output operates either in normally open mode (NO) or in normally closed mode (NC), depending on the connection of the load to the electronic board of the device. 18-36 VDC + 300 mA →→Protect the relay with a fuse (3 A max.) and, depending on the application, with a circuit breaker. 1 2 3 4 5 6 L 250 VAC N Do not apply both a dangerous voltage and a safety extra low voltage (SELV) to the relay.
Type 8041 Adjustment and commissioning Power supply 18-36 VDC 9. Adjustment and commissioning 9.1. Safety instructions + 300 mA * 1 2 3 4 5 6 L 250 VAC N 4...20 V+ V- PE Pls+Pls- 3A Protection circuit Solenoid valve (or alarm) 250 VAC, 3 A max. C NO NC 8041 danger Risk of injury due to electrical voltage. • Observe all applicable accident protection and safety regulations for electrical equipment. Warning Risk of injury due to non-conforming operating.
Type 8041 Adjustment and commissioning 9.2. Warning Danger due to non-conforming commissioning. Non-conforming commissioning can lead to injuries and damage the device and its surroundings. • Before commissioning, make sure that the staff in charge have read and fully understood the contents of these operating instructions. • In particular, observe the safety recommendations and intended use. • The device / the installation must only be commissioned by suitably trained staff.
Type 8041 Adjustment and commissioning Red led: Green LED: 1 2 3 4 5 6 - ..... Flashing once every second: the device is energized. 4...20 V+ V- PE Pls+Pls- : device in Parameterizing mode Flashing once up to 5 times: to know which parameter the bargraph is indicating 10-LED bargraph: ..... flashing 1 up to 5 times: error (see 10.
Type 8041 Adjustment and commissioning 9.3. General diagram of the Read and Parameterizing modes Read mode Parameterizing mode 2 Calibration in progress Flow zero calibration alternately Hold > 2 s Full scale calibration X Release when desired function is displayed* Confirm the choice displayed Hold > 2 s 1 * If no action for 10 s, the device goes back to Read mode, using the parameters from the previous adjustment.
Type 8041 Adjustment and commissioning 2 Relay 1 Hysteresis switching Current way of switching* Hold > 2 s Confirm the choice displayed X alternately Release when desired function is displayed* Window switching Hold > 2 s Short press Current low switching threshold* Hold > 2 s Current high switching threshold* Hold > 2 s Unit increment: LED flashes up to 9 times Short press Press and hold to set the units ......
Type 8041 Adjustment and commissioning 9.4. Selecting the frequency of the main supply Switch 1 is used to select the frequency of the current provided by the electricity network. →→Position switch 1 to ON or OFF depending on the frequency of When the filter is enabled, switch 3 is used to select the filter level: slow or fast. "Slow" filter is used to even out high variations in flow (example: fluid containing air bubbles), see Fig. 27.
Type 8041 Adjustment and commissioning 9.7. Calibrating the flow zero point Filter Position of switch 3 slow (Response time 10 to 90 % = 14 s) OFF →→Calibrate the device on commissioning and after each ON • Before calibrating the zero point on commissioning: fast (Response time 10 to 90 % = 5 s) maintenance task. →→immerse the measuring element in the fluid for 24 h before calibration. 9.6. Selecting the measurement range The output signal is proportional to the measured flow velocity.
Type 8041 Adjustment and commissioning Device in Read mode? Notation convention: NO See general configuration diagram, chap. 9.3 ..... ..... Red LED state Green LED state YES →→Press and hold the push button. After 2 s, device is in Parameterizing mode: ..... Step 1 Bargraph alternates between: 1 2 3 4 5 6 7 8 9 10 Zero flow calibration Full scale calibration →→Release push button when bargraph shows zero flow calibration. To calibrate automatically A Fig.
Type 8041 Adjustment and commissioning B A To calibrate automatically C To select the calibration of the other parameter →→Briefly press push button. →→Press and hold the push To go back to the Read mode →→Wait for 10 s. button until... Calibration in progress End of calibration: red LED goes off? YES Zero point stored. Go back to Read mode. ..... ...bargraph goes back to step 1, Fig. 28 NO Go back to Read mode without confirming the selection displayed.
Type 8041 Adjustment and commissioning 9.8. Calibrating the full scale The Fig. 30 and the Fig. 31 show the relation between the measured fluid velocity and the value of the frequency or current provided by the outputs. Full scale error mA 22 20 Full scale error Hz 4 256 240 0 m/s 0.1 Calibrated full scale 0 Fig. 31: Relation between the measured fluid velocity and the value of the current output m/s 0.1 Calibrated full scale Full scale + 20% Fig.
Type 8041 Adjustment and commissioning Device in Read mode? Notation convention: NO See general configuration diagram, chap. 9.3 ..... ..... Red LED state YES Green LED state →→Press and hold the push button. After 2 s, device is in Parameterizing mode: ..... Step 1 Bargraph alternates between: 1 2 3 4 5 6 7 8 9 10 Zero flow calibration Full scale calibration →→Release push button when bargraph shows full scale calibration.
Type 8041 Adjustment and commissioning B A To calibrate automatically To select the calibration of the other parameter →→Briefly press push button. →→Press and hold the push button until... Calibration in progress ...bargraph goes back to step 1, Fig. 32 End of calibration: red LED goes off? NO Red LED flashes: 4 times: fluid velocity < 2 m/s YES Full scale value stored 5 times: fluid velocity < 10 m/s Go back to Read mode →→Press push button for 2 s. The full scale cannot be calibrated .....
Type 8041 Adjustment and commissioning 9.9. Setting the parameters of the relay output The Fig. 34 shows the behaviour of the relay output depending on the parameter settings and the measured velocity.
Type 8041 Adjustment and commissioning The wiring of the relay determines the function of the relay: Normally Open (NO) or Normally Closed (NC). The following parameters of the relay output can be set: -- the switching way: window or hysteresis (see chap. 9.9.1) -- the value of the low switching threshold, as a percentage of the full scale (see chap. 9.9.2) -- the value of the high switching threshold, as a percentage of the full scale (see chap. 9.9.
Type 8041 Adjustment and commissioning State of the relay output Device in Read mode? actived NO ..... deactivated Low threshold m/s High threshold Fig. 38: Change of state of the relay output in hysteresis switching with a relay wired as NC See general configuration diagram, chap. 9.3 YES →→1 short press on push button. →→Select the way of switching of the relay (see Fig. 39 and Fig. 40).
Type 8041 Adjustment and commissioning →→Release push button when bargraph shows desired way of switching. To confirm the selection and go back to Read mode →→Briefly press push button. To choose the other way of switching →→Press and hold the push button until... To go back to Read mode without confirming the selection →→Wait for 10 s. Go back to Read mode Go back to Read mode ...bargraph goes back to step 1, Fig. 39 ..... ..... Fig. 40: Choosing the relay switching way, part 2 9.9.2.
Type 8041 Adjustment and commissioning Device in Read mode? Notation convention: ..... NO ..... Red LED state Green LED state See general configuration diagram, chap. 9.
Type 8041 Adjustment and commissioning A If low switching threshold set to 24%, LED no. 3 flashes 9 times then stays on; 1 flash = 1 % of the FS B If high switching threshold set to 82%, LED no.
Type 8041 Adjustment and commissioning C To confirm the selection and go back to Read mode To modify the value displayed →→Briefly press push button. →→Press and hold the push Go back to Read mode →→Release the push button button ..... when desired number of LEDs is on To go back to Read mode without confirming the value set. →→Wait for 10 s. Go back to Read mode ..... Fig. 43: Setting the relay switching thresholds, part 3 9.9.3.
Type 8041 Adjustment and commissioning Notation convention: ..... A Red LED state Green LED state Device in Read mode? NO ..... YES To view time delay before switching If time delay before switching set to 52 s, LED no. 6 flashes 9 times then stays on See general configuration diagram, chap. 9.3 Next LEDs come on one after the other →→Release the push button when desired number of LEDs is on.
Type 8041 Adjustment and commissioning D C B To go back to Read mode without confirming the value set. To modify the seconds of the time delay before switching. →→Briefly press push button. →→Press and hold the push button To go back to Read mode without confirming the value set. →→Wait for 10 s. →→Release push button when LED has flashed the desired number of times Fig.
Type 8041 Maintenance and troubleshooting 10. Maintenance and troubleshooting 10.1. Safety instructions danger Risk of injury due to high pressure in the installation. • Stop the circulation of fluid, cut off the pressure and drain the pipe before loosening the process connections. Risk of injury due to high fluid temperatures. • Use safety gloves to handle the device. • Stop the circulation of fluid and drain the pipe before loosening the process connections.
Type 8041 Maintenance and troubleshooting 10.4. Replacing the seal on a device with G2" nut 10.5. If you encounter problems danger note Risk of injury due to high pressure in the installation. • Stop the circulation of fluid and cut off the pressure before loosening the process connections. Do not scratch the seal groove. Risk of injury due to electrical voltage. • Shut down the electrical power source of all the conductors and isolate it before carrying out work on the system.
Type 8041 Maintenance and troubleshooting Problem Bargraph state The device does not respond OFF The device does not respond OFF Current or frequency Meaning / Cause output state Flashes once Flashes once 22 mA and Measuring range briefly every 2 s every second 256 Hz exceeded by more than 20% Green LED Red LED state state Flashes twice Flashes once 22 mA and The flow zero point calibriefly every 2 s every second 0 Hz bration failed.
Type 8041 Maintenance and troubleshooting Problem Bargraph state The device does not respond OFF The sensor does not work OFF Current or frequency Meaning / Cause output state Flashes 5 times Flashes once 22 mA and The calibration of the full briefly every 2 s every second 0 Hz scale failed because the fluid velocity > 10 m/s. Green LED Red LED state state OFF OFF 0 mA and 0 Hz - Incorrect flow measurement.
Type 8041 Maintenance and troubleshooting Problem Bargraph state The flow rate Unstable measurements are not stable Meaning / Cause Recommended action OFF The electrodes are dirty. →→Clean the electrodes (see chap. The electrodes are not in contact with the fluid. Air bubbles appear in the fluid. →→Make sure the electrodes are always The device shows a transmits no value current or no frequency at all. OFF The sensor Lit does not measure a nil flow rate.
Type 8041 Spare parts and accessories 11. Spare parts and accessories Spare parts Set of: Order code 558102 -- 1 stopper gasket for an M20x1.5 cable gland attention -- 1 multiway seal, 2x6 mm, for cable gland Risk of injury and/or damage caused by the use of unsuitable parts. Incorrect accessories and unsuitable replacement parts may cause injuries and damage the device and the surrounding area. • Use only original accessories and original spare parts from Bürkert.
Type 8041 Storage Spare parts Set of: Order code 565384 -- 1 stopper gasket for an M20 x 1,5 cable gland -- 1 multi-way seal, 2 x 6 mm, for a cable gland 12. Packaging, Transport attention 13. attention Poor storage can damage the device. • Store the device in a dry place away from dust. • Storage temperature: -20...+60 °C. • Humidity: < 80%, non condensated. 14. Damage due to transport Transport may damage an insufficiently protected device.
Type 8041 English 55
Type 8041 56 English
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