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Operating Instructions 

for 

Oval Gear Flow Meter 

Model:  

DON-...Lx/Hx/Rx/Dx/Gx/Kx/Bx/Zx/M4 

Содержание DON-05Bx

Страница 1: ...Operating Instructions for Oval Gear Flow Meter Model DON Lx Hx Rx Dx Gx Kx Bx Zx M4 ...

Страница 2: ...22 9 1 Disassembly of DON with Pulse meter 23 9 2 Demounting of the electronics mounted on a DON with Zx and Ex options 30 9 3 Spare Parts 30 9 4 Inspection refer Exploded View 30 9 5 Re assembly of DON 30 10 Technical Data 33 11 Pressure drop curves 38 12 Order codes 40 13 Dimensions Electronic Options Ex Zx 41 14 Troubleshooting 42 15 ATEX Exd version 44 16 EU Declaration of Conformance 46 17 Ma...

Страница 3: ... Model DON DN Pmax bar diagram 8 group 1 dangerous liquids diagram 9 group 2 no dangerous liquids DON 105 64 art 4 par 3 art 4 par 3 DON 110 64 DON 115 64 DON 120 64 DON 125 25 64 DON 130 40 40 DON 135 50 40 DON 140 50 16 DON 145 80 16 DON 150 80 16 DON 155 100 16 DON 160 100 16 DON 2 8 Stainless steel version Model DON 2 8 DN Pmax bar diagram 8 group 1 dangerous liquids diagram 9 group 2 no dange...

Страница 4: ...6 category II DON 45 3 16 category II DON 50 3 16 category II DON 55 4 16 category II DON 60 4 16 category II DON 2 8 Stainless steel with mechanical totalizer Option M4 Model DON 2 8 DN Pmax bar diagram 8 group 1 dangerous liquids diagram 9 group 2 no dangerous liquids DON 05 DON 06 DON 10 DON 15 DON 20 40 art 4 par 3 art 4 par 3 DON 25 1 40 art 4 par 3 DON 30 1 40 category II DON 35 2 30 categor...

Страница 5: ...rs are suitable for fuels fuel oils lubricating liquids It is important to ensure that the medium to be measured is compatible with the materials used in the instrument See section 10 Technical Data It is also imperative to comply with the maximum permissible operating parameters specified in the Technical Data section The flowmeter is available as a measurement transducer with pulse output or wit...

Страница 6: ...y via a remote display controller or PLC or via a variety of output display options available as accessories attached to the flowmeters The positive displacement flow technology allows for precise flow measurement of most clean liquids regardless of the media conductivity Other liquid properties also have a minimal effect on the performance of this type of meter Flow profile conditioning is not re...

Страница 7: ...at the operational pressure and temperature limits are within capability of the fully specified meter Verify that the operational flow rates are within the specified flow range Viscous liquids may limit the maximum allowable flow based on the viscosity The max allowable flow rate may need to be limited to ensure the differential pressure across the flowmeter does not exceed 1 Bar 100 kPa 15 PSIG B...

Страница 8: ...uit the installation The DON flowmeter accommodates both horizontal and vertical flows It is recommended that for vertical flow installations that the liquid flow up through the meter i e bottom to top This orientation assists in air or entrained gas removal The flow meter is bidirectional To identify the flow direction in which the flowmeter was calibrated the flowmeters are marked with arrows Th...

Страница 9: ...ted from the system and serviced as needed System purging is also possible with a by pass arrangement Accommodate all meter ratings and locate the meter on the discharge side of the process pump For outdoor applications be sure all electrical entries are sealed properly via the proper glands mounting sealing or containment For humid environments mount the instrument appropriately as to avoid conde...

Страница 10: ...he Reed contact R0 option and without ATEX labelling For this purpose intrinsically safe cabling must be laid between the instrument the hazardous area and an approved isolation switching unit outside the hazardous area See section 17 Manufacturers declaration Switches for use in Explosive Atmospheres Alternatively the device can be operated using option E1 to E5 with Ex ia IIC T4 Gb approval see ...

Страница 11: ...BE options The H0 HE B0 BE electronics options combine a hall effect sensor with an active push pull output stage The B0 BE options involve combining bipolar Hall sensors with alternating polarised magnets This option is particularly suitable for pulsating currents although the pulse rate is halved compared to the H0 HE option A three phase electrical connection is used The output is actively swit...

Страница 12: ...e the dry reed contact impulse output in ATEX areas as simple apparatus only the R0 option may be used Note when using the reed switch output the liquid temperature must not change at a rate greater than 10 ºC per minute 50 ºF per minute Average electrical endurance of switching contact MTTF Mean Time To First Failure Max switching voltage 100 V 10 mA 5x105 switching cycles Max current load 20 V 5...

Страница 13: ...life or even destroy the contact For capacitive and inductive loads e g via long lines we recommend the following protective circuits Lamp load with series or parallel Protection with a RC suppressor resistance to the reed switch For a c current and inductive load Protection with a diode Protection with an inductance or for d c current and inductive load Resistance for capacitive load ...

Страница 14: ...ut is best suited for verified use with a redundant signal or for counting bidirectional currents detecting the current direction Max output current per channel power source or sink 100 mA short circuit protected The current direction of the medium is defined as follows a Hx signal leading over Dx signal Current flowing in the direction of the marked arrow positive b Hx signal lagging behind Dx si...

Страница 15: ...options Ex Zx The Ex Zx electronic options are pre configured ex works in connection with the sensor boards Reconfiguration is available on request 7 4 1 For Z1 Z3 electronic options reed switch and Hall sensor a Wiring diagram with reed switch ex works standard ...

Страница 16: ...l sensor recommended in connection with external supply 7 4 2 For Z6 Z7 electronics options bipolar Hall sensor The circuitry corresponds to 7 4 1 b 7 4 3 For E1 E5 electronics options Refer operating instructions supplement ZOK Ex wiring options E1 E5 ...

Страница 17: ...DON DON K18 0418 page 17 7 4 4 For Z2 Z8 Z9 electronics options 2 Hall sensors for direction detection ...

Страница 18: ...ity is correct All DON devices with L0 LE options are factory calibrated to the respective measurement range end value This setting should only be modified by the manufacturer 7 4 6 Calibration Factor scale or K Factor The DON flowmeter is delivered with a factory calibration certificate Within this certificate a calibration factor is provided The calibration factor is a specific representation of...

Страница 19: ...DON DON K18 0418 page 19 7 5 External wiring with electronic unit ZOK Zx 7 5 1 Wiring with ZOK ZxK a Circuit with Hall sensor not for battery operation b Circuit with Reed switch ...

Страница 20: ...DON page 20 DON K18 0418 7 5 2 Wiring with ZOK ZxP a Circuit with Hall sensor b Circuit with Reed switch ...

Страница 21: ...ctivity or after a flushing air may be in the piping Elimination of the air may be achieved by operating the meter at a low flow rate until all the air is eliminated Damage may occur to the flowmeter if it is run above the maximum rated flow rate or if the maximum differential pressure of 15 psi 1 bar 100 kPa is exceeded After mechanical and electrical installation according to the guidelines set ...

Страница 22: ...n de energized or removed from the circuit Oval gear positive displacement flowmeters are mechanical by nature A periodic maintenance inspection schedule is suggested for an extended service life Follow the guidelines within this user manual for the maximum flowmeter performance The maintenance inspection schedule should be determined based off of application factors such as media type abrasivenes...

Страница 23: ...re remove the upper meter body assembly 4 being careful not to damage or misplace the O ring 3 or changing the positioning of the oval wheels 2 and or damaging them For DON models DON x05 to DON x10 when disassembling please notice the dimples located on the meter bodies 1 4 face just outside the o ring groove These dimples must align with each other when the meter is re assembled In addition for ...

Страница 24: ...ars for DON x20 refer exploded view For access to the oval gears remove the 6 upper meter body screws 5 With care remove the upper meter body assembly 4 being careful not to damage or misplace the O ring 3 You can then remove the oval gears 2 Optional ...

Страница 25: ...x40 refer exploded view For access to the oval gears remove the 8 upper meter body screws 5 With care remove the upper meter body assembly 4 being careful not to damage or misplace the O ring 3 You can then remove the oval gears 2 2 2 3 4 5 6 7 8 9 10 11 12 13 1 Optional ...

Страница 26: ...gears for DON x45 DON x60 refer exploded view For access to the oval gears remove the 8 upper body screws 5 With care remove the upper body assembly 4 being careful not to damage or misplace the O ring 3 You can then remove the oval gears 2 Optional ...

Страница 27: ...move lower housing section 5 Remove seal 4 washer 3 and seal 2 When assembling it is important to ensure the oval gear of 3 is correctly positioned relative to the counting mechanism 8 When mounting the counter mechanism it is preferable to keep the DON in a horizontal position This allows the counter mechanism 8 to be mounted distortion free from above on the cone gear wheel 3 DON x20 ...

Страница 28: ...DON page 28 DON K18 0418 DON x25 to x40 DON x45 to x60 ...

Страница 29: ...chanical counter display comprises a 4 digit mechanical totalizer 1 and an 8 digit sum display 2 Depending on the order option the display is calibrated in either litres or gallons The totalizer display can be reset to zero by turning the function dial 3 in an anti clockwise direction 1 3 2 ...

Страница 30: ...the oval gearbox housing should be loosened 9 3 Spare Parts Please consult your closest KOBOLD Office Internet www kobold com or www koboldusa com 9 4 Inspection refer Exploded View Inspection points will be the following O rings Inspect for physical or chemical damage or deformation Rotors Inspect for physical damage due to unfiltered media or damage due to chemical attack Also observe also the m...

Страница 31: ...ach other Proper placement of the O ring within the groove is necessary for leak free operation After placement items 1 4 will then require assembly For the small 4 mm and 6 mm flowmeters reference the alignment dimples on the lower meter body and upper meter body 1 4 for proper assembly Tighten the meter bodies 1 4 with the screws 5 in an alternating pattern 1 3 2 4 Tighten to each to a torque of...

Страница 32: ...he rotors will not completely rotate freely unless installed precisely 90 from each other Proper placement of the O ring within the groove is necessary for leak free operation After placement items 1 4 will then require assembly Tighten the upper meter body to the lower meter body 1 4 with the screws 5 in an alternating pattern 1 3 2 4 Tighten to each to a torque of 3 5 Nm The alternating tighteni...

Страница 33: ...ess steel 1 4404 DON x05 DON x15 stainless steel 1 4404 1 3955 DON x20 DON x60 Oval gears stainless steel 1 4404 DON x05 DON x40 stainless steel 1 3955 DON x45 DON x60 Bearing carbon graphite Axes stainless steel 1 4404 DON 8 Body stainless steel 1 4404 DON x05 DON x15 stainless steel 1 4404 1 3955 DON x20 DON x60 Oval gears PPS GF 30 PTFE Axes stainless steel 1 4404 Optional ...

Страница 34: ...tput and options Z with cooling fins Ambient temperature 20 80 C option M4 0 C 60 C Cable entry M20x1 5 NPT ATEX marking option E1 E3 II 2G Ex ia IIC T4 Gb option HE BE DE KE GE LE RE II 2G Ex db IIC T4 T6 Gb I M2 Ex db I Mb IECEx marking option E1 E5 Ex ia IIC T4 Gb option HE BE DE GE LE RE Ex db IIC Ex db I Mb R0 RE electronics options max switching voltage 30 VDC Reed switch pulse output max sw...

Страница 35: ...on only Z1 Z3 Battery 3 6 V 2200 mA AA size Display LCD graphic 128x64 Backlighting adjustable Operation 4 buttons Housing plastic PA6 GF reinforced Cable inlet 3x M20x1 5 prepared Electrical connection plug in terminals Z1 electronics option Signal inputs 2x configurable Dual counter Daily overall counter 1x per input Signal outputs none Z2 electronics option Signal inputs 1x configurable Batchin...

Страница 36: ...plier for higher viscosities Viscosities cP Standard rotor Special cut rotor 1000 1 1 2000 0 5 1 4000 0 42 0 84 6000 0 33 0 66 8000 0 25 0 5 30000 0 15 0 3 60000 0 12 0 25 150000 0 1 0 2 250000 0 05 0 1 1000000 0 025 0 05 Special cut rotors for higher viscosities For viscosity 1000 cP special cut rotors option S should be used to reduce pressure drop This applies to DON x15 and larger sizes For hi...

Страница 37: ...Hall sensor Bx Quadr hall sensor Dx Hall sensor high resolution Gx Hall sensor Kx DON X05 0 5 36 L h 2670 2670 2670 11320 5340 DON X06 2 36 L h 2670 2670 2670 11320 5340 DON X10 2 100 L h 1054 1054 1054 4210 2108 DON X15 15 550 L h 355 710 355 710 1420 DON X20 1 40 82 163 82 163 320 DON X25 10 150 26 103 52 52 DON X30 15 250 14 55 27 27 DON X35 30 450 6 4 25 5 13 5 13 5 DON X40 50 580 4 9 19 6 9 8...

Страница 38: ...DON page 38 DON K18 0418 11 Pressure drop curves ...

Страница 39: ...DON DON K18 0418 page 39 ...

Страница 40: ...DON page 40 DON K18 0418 12 Order codes Please refer to separate datasheet ...

Страница 41: ...DON DON K18 0418 page 41 13 Dimensions Electronic Options Ex Zx Option M N standard Option S T with cooling fin ...

Страница 42: ...t etc Step 3 Guarantee flow rate Flow stopping or a flow rate declining below the usual limit may be attributable to a blocked screen flowmeter rotors which are stuck or damaged a defective pump closed valves or an insufficient liquid level in the storage tank Step 4 The oval gears in the counter must revolve This rotation is audible try holding a screwdriver blade against the counter housing and ...

Страница 43: ...chamber 3 Disruption of the output signal 1 Ground shielding of the signal cable 2 Re lay the cable away from sources of high current 3 Check all electrical connections and wires for the presence of current No output from counter 1 Soiled rotors 1 Check whether the rounded teeth at the base of the chamber are visible 2 Check for any obstructing foreign particles 3 Clear repair or replace rotors 2 ...

Страница 44: ...udes the label for group I the surface temperature of the process fluid must not exceed 150 C Ex IIC T4 T6 Devices for use in areas with potentially explosive atmospheres outside the mining field but with mine gas accumulation Either aluminium or stainless steel devices may be used in explosion group II For T4 temperature class applications the surface temperature of the process fluid must not exc...

Страница 45: ...counter has been calibrated to function with mineral oil which means the remainder of the calibration oil still remains in the device The oil used for measurement ranges X05 to X20 SHELL Morlina 10 for measurement ranges X25 to X60 EXXSOL D120 ...

Страница 46: ...2014 30 EU EMC Directive EN 61326 1 2013 Electrical equipment for measurement control and laboratory use EMC requirements Part 1 General requirements All models DON E agree with the following certifications and directives DEKRA 17ATEX0004 X ATEX Equipment Certificate Flameproof Issued by DEKRA NL 2014 34 EU ATEX Directive Notified body 0158 BVS DEKRA EXAM Bochum EN 60079 0 2012 A11 2013 Explosive ...

Страница 47: ...ving a surface area between 20 mm and 100 mm will be classified T4 when the matched output power of the interface device does not exceed 1 3W into 40 ºC ambient 1 2W into 60 ºC ambient 1 0W into 80 ºC ambient The 1 3 W 40 ºC element of this European dispensation is now accepted in the USA and Canada Switches mechanical reed switches and junction boxes dissipate no power and are normally classifies...

Страница 48: ...DON page 48 DON K18 0418 18 Exd Certificate ...

Страница 49: ...DON DON K18 0418 page 49 ...

Страница 50: ...DON page 50 DON K18 0418 ...

Страница 51: ...DON DON K18 0418 page 51 19 IECEx Certificate ...

Страница 52: ...DON page 52 DON K18 0418 ...

Страница 53: ...DON DON K18 0418 page 53 ...

Страница 54: ...DON page 54 DON K18 0418 ...

Страница 55: ...DON DON K18 0418 page 55 20 State of safeness ...

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