Kobold DON-05Lx Operating Instructions Manual
  1. Manuals
  2. Brands
  3. Kobold Manuals
  4. Measuring Instruments
  5. DON-05Lx
  6. Operating instructions manual

Kobold DON-05Lx Operating Instructions Manual

Oval gear flow meter
Hide thumbs
Table of Contents

Advertisement

Quick Links

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

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the DON-05Lx and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Kobold DON-05Lx

Summary of Contents for Kobold DON-05Lx

  • Page 1 Operating Instructions Oval Gear Flow Meter Model: DON-...Lx/Hx/Rx/Dx/Gx/Kx/Bx/Zx/M4...

  • Page 2: Table Of Contents

    Exd Certificate ..................... 48     IECEx Certificate ..................51     State of safeness ..................55     Manufactured and sold by: KOBOLD Messring GmbH Nordring 22-24 D-65719 Hofheim Tel.: +49(0)6192-2990 Fax: +49(0)6192-23398 E-Mail: info.de@kobold.com Internet: www.kobold.com page 2 DON K18/0418...

  • Page 3: Note

    2. Note Please read these operating instructions before unpacking and putting the unit into operation. Follow the instructions precisely as described herein. The devices are only to be used, maintained, and serviced by persons familiar with these operating instructions and in accordance with local regulations applying to Health &...
  • Page 4 DON-1 M4 Aluminum version with mechanical totalizer diagram 8 diagram 9 Option M4 group 1 group 2 Model DON-1 [bar] dangerous liquids no dangerous liquids ⅛ DON-05 DON-10 ¼ ⅜ DON-15 DON-20 ½ art. 4, par. 3 DON-25 art. 4, par. 3 DON-30 1½...

  • Page 5: Instrument Inspection

    3. Instrument Inspection Instruments are inspected before shipping and sent out in perfect condition. Should damage to a device be visible, we recommend a thorough inspection of the delivery packaging. In case of damage, please inform your parcel service / forwarding agent immediately, since they are responsible for damages during transit.

  • Page 6: Operating Principle

    5. Operating Principle Oval gear flowmeters are categorized as positive displacement flow technology. When liquid flows through this type of positive displacement flowmeter, two oval geared rotors measure a constant volume per rotation within a precisely machined measuring chamber. With each rotation, a constant volume of liquid is measured.

  • Page 7: Mechanical Connection

    Be sure that all wetted parts are identified and confirmed suitable for use with the media being measured. If unsure, please contact a KOBOLD engineer for guidance in obtaining the proper reference materials.  Verify that the operational pressure and temperature limits are within capability of the fully specified meter.

  • Page 8: Orientation

    Orientation When installing the flowmeter, orientation must be considered. The rotor shafts must be in a horizontal plane. To verify that the rotor shafts are in a horizontal plane, electronic cover or optional digital display will be facing in a horizontal direction.

  • Page 9: Flow Conditioning And Location

    Flow Conditioning and Location It is highly recommended to INSTALL a filter immediately before (prior to) the meter. Filters are available and sold separately. Recommended Filter: DON-x05…DON-x15: < 75 µm particle size (200 mesh) DON-x20…DON-x35: < 150 µm particle size (100 mesh) DON-x40…DON-x60: <...

  • Page 10: Electrical Connection

    7. Electrical Connection Connecting Cable Proper shielded instrument cable is highly recommended. Low capacitance twisted pair 7 x 0.3 mm (0.5 mm²) for use with the DON and any remote receiving instrumentation. Typical cable would be Belden® 9363 or similar. Connect the cable shield to DC common or designated grounding terminal at the receiving instrument.

  • Page 11: Electrical Connection For Integrated Electronics Options

    In accordance with the installation regulations, both, the housings and the electronic covers must be grounded using the earthing clamps. The maximum connection cross-section is 4 mm Internal earthing clamp electronics cover External earthing clamp 7.3 Electrical connection for integrated electronics options The electrical connection of the integrated electronics options always requires the electronics cover to be dismantled.
  • Page 12 7.3.2 Reed Switch Pulse Output The DON reed switch output is a SPST potential free N/O 2-wire output. This is a passive output so no power is required. The output may also be used with an appropriate intrinsically safe barrier for use in hazardous locations. If the intention is to operate the dry-reed contact impulse output in ATEX areas as simple apparatus, only the R0 option may be used.
  • Page 13 The individually specified maximum electrical values of the reed switch must never be exceeded, even for a moment. Higher switching values may reduce the service 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...
  • Page 14 7.3.3 Quadrature Pulse Output (QUAD, Option D0/DE) For the D0/DE option, the DON devices come with 2 independent hall-sensor elements. The hall-effect sensors are arranged so that they emit separate phase- shifted signals to one another. The QUAD output is best-suited for verified use with a redundant signal or for counting bidirectional currents (detecting the current direction).

  • Page 15: Internal Wiring With Electronic Options -Ex/Zx

    Internal wiring with electronic 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) DON K18/0418 page 15...
  • Page 16 b) Wiring diagram with Hall 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 page 16 DON K18/0418...
  • Page 17 7.4.4 For Z2/Z8/Z9 electronics options (2 Hall sensors for direction detection) DON K18/0418 page 17...
  • Page 18 7.4.5 Analog output 4-20 mA, 2-line (L0/LE option) The L0 and LE (explosion hazard) options include a loop-powered 4-20 mA output. The loop is powered by an external voltage source 16 – 32 V . The maximum working resistance of loads connected in series (PLC-analogue input / electronic displays) depends on the supply voltage level, namely: Max.

  • Page 19: External Wiring With Electronic Unit Zok-Zx

    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 DON K18/0418 page 19...
  • Page 20 7.5.2 Wiring with ZOK-ZxP a) Circuit with Hall sensor b) Circuit with Reed switch page 20 DON K18/0418...

  • Page 21: Commissioning

    8. Commissioning The piping MUST be flushed of debris before installation. Debris such as slag from welding, grinding dust, rust, pipe tape or sealing compound are common within new piping installations and will damage the flowmeter if not flushed or filtered from the process piping before installation and operation.

  • Page 22: Maintenance

    9. Maintenance Flowmeter maintenance precautions:  Remove/disconnect power to the flowmeter.  Ensure that flow supply to the meter is turned off and the system is not under pressure.  Completely drain the flowmeter  Confirm that any signal output(s) will not affect the system when de- energized or removed from the circuit.

  • Page 23: Disassembly Of Don With Pulse Meter

    Disassembly of DON with Pulse meter Concerning options Hx, Dx, Gx, Bx, Kx and Rx 9.1.1 Pulse output board removal (refer exploded view diagram) To remove the pulse output board, remove the 4 electronic cover screws (10), and remove the electronic cover (9). The pulse output board (6) can now be accessed and removed via the removal of the electronic board screws (7).
  • Page 24 9.1.3 Removal of oval gears 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 page 24 DON K18/0418...
  • Page 25 9.1.4 Removal of oval gears for DON-x25…DON-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). Optional DON K18/0418 page 25...
  • Page 26 9.1.5 Removal of oval 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 page 26 DON K18/0418...
  • Page 27 9.1.6 Structure of the DON-M4 mechanical counting mechanism  Loosen three screws (10)  Remove cover (9)  Lift out counting mechanism (8)  Remove seal (7)  Loosen 4 screws (6)  Remove 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).
  • Page 28 DON-x25 to x40 DON-x45 to x60 page 28 DON K18/0418...
  • Page 29 9.1.7 Adjusting the DON-M4 mechanical counter mechanism The M4 mechanical 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.

  • Page 30: Demounting Of The Electronics Mounted On A Don With Zx And Ex Options

    To remove the electronics, the screws used to connect the electronics housing to the oval gearbox housing should be loosened. Spare Parts Please consult your closest KOBOLD-Office Internet: www.kobold.com www.koboldusa.com...
  • Page 31 9.5.1 Re-assembly of DON-x05...DON-x15 For DON models DON-x05 to DON-x15, when re-assembling, please insert the rotor with the embedded magnet nearest to the dimple located on the meter body face just outside the o-ring groove. Install the rotors exactly perpendicular from each other (90°...
  • Page 32 9.5.2 Re-assembly of DON-x20...DON-x40 Both oval gears are placed on the axle shafts with the magnets oriented towards the upper meter body (4). Verify that the axle shafts are not loose. Both oval gears are equipped with embedded magnets, allowing them to each be mounted on either axle.

  • Page 33: Technical Data

    Exploded view of DON-x45...DON-x60 Optional 10. Technical Data Material: DON-1 Body: aluminium Oval gears: PPS GF 30/PTFE Axes: stainless steel 1.4404 DON-2 Body: stainless 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:...
  • Page 34 O-Rings: medium temperature FKM: -20..+120 °C NBR: -20..+100 °C FEP-O-seal/FKM: -15…+130 °C Cover for cable connection: polyamide PA6 GF35 UL94 HB/VO DON-1 stainless steel 1.4404 DON-2 und DON-8 Accuracy: ± 1 % of reading (DON-x05..DON-x15) ± 0.5 % of reading (DON-x20..DON-x60) ±...
  • Page 35 G0/GE and K0/KE electronics options: Supply voltage: 8 to 30 V (Pulse output hall sensor Supply current: max. 8 mA (without load) High resolution) Hall pulse output: like H0/HE D0/DE electronics options: Supply voltage: 8 to 30 V (2x Pulse output hall sensor) Supply current: around 8 mA Hall pulse output: like H0/HE...
  • Page 36 Maximum Pressure (threaded version) Maximum pressure (bar) DON-1.. DON-2/8 Model DON-1 DON-2/8 (option – (option – DON-x05 DON-x06 DON-x10 DON-x15 DON-x20 DON-x25 DON-x30 DON-x35 DON-x40 DON-x45 DON-x50 DON-x55 DON-x60 with flanges, maximum pressure rating is above or as per flange rating, whichever is lower Max.
  • Page 37 Output Pulse Resolution Pulse / liter Measuring Quadr. Hall sensor Hall sensor Model range Reed Hall sensor Hall sensor hall sensor high resolution [l/min] switch Rx DON-X05 0,5 - 36 L/h 2670 2670 2670 11320 5340 DON-X06 2 - 36 L/h 2670 2670 2670...

  • Page 38: Pressure Drop Curves

    11. Pressure drop curves page 38 DON K18/0418...
  • Page 39 DON K18/0418 page 39...

  • Page 40: Order Codes

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

  • Page 41: Dimensions Electronic Options Ex/Zx

    13. Dimensions Electronic Options Ex/Zx Option -M/-N (standard) Option -S/-T (with cooling fin) DON K18/0418 page 41...

  • Page 42: Troubleshooting

    14. Troubleshooting Oval gear flowmeters have two clearly distinct portions: one of which is mechanical, wetted areas with the oval gears surrounded by a housing, and the other is the electrical area, which includes the pulse output board. Details of some key troubleshooting steps will now be provided. Please also refer to the instructions on troubleshooting errors contained on the following page.
  • Page 43 Problem Possible cause Solution 1. Ground shielding of the signal cable 1. Disruption of the output signal 2. Re-lay the cable away from sources of high current 1. Eliminate the source of the air or gas pocket 2. Air or gas pockets 2.

  • Page 44: Atex Exd Version

    15. ATEX Exd version Concerning electronic options RE / BE / HE / DE / GE / KE / LE) Products which were ordered with the optional encapsulated pressure-proof connector housing (Exd) are marked with an ATEX label (see figure). The label includes details relating to explosion group and temperature class.
  • Page 45 Each DON volume 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 DON K18/0418 page 45...

  • Page 46: Eu Declaration Of Conformance

    16. EU Declaration of Conformance We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole responsibility that the product: Oval Gear Flow Meter Model: DON-... to which this declaration relates is in conformity with the directives noted below: 2014/68/EU 2011/65/EU...

  • Page 47: Manufacturers Declaration - Switches For Use In Explosive Atmospheres

    Resistive sensors Declaration We, Kobold Messring GmbH, hereby declare that the reed contacts installed in the H0 and R0 DON electronics options come within the scope of "Simple Apparatus" pursuant to European, American and Canadian guidelines, although no special labelling is included to this effect.

  • Page 48: Exd Certificate

    18. Exd Certificate page 48 DON K18/0418...
  • Page 49 DON K18/0418 page 49...
  • Page 50 page 50 DON K18/0418...

  • Page 51: Iecex Certificate

    19. IECEx Certificate DON K18/0418 page 51...
  • Page 52 page 52 DON K18/0418...
  • Page 53 DON K18/0418 page 53...
  • Page 54 page 54 DON K18/0418...

  • Page 55: State Of Safeness

    20. State of safeness DON K18/0418 page 55...

This manual is also suitable for:

Don-06lxDon-20lxDon-25lxDon-10lxDon-30lxDon-35lx ... Show all

Table of Contents