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Kobold KEP-1 Operating Instructions Manual

Thermal mass flow meter for gas
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Operating Instructions
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Thermal Mass Flow Meter for Gas
Model: KEP-1

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Summary of Contents for Kobold KEP-1

  • Page 1 Operating Instructions Thermal Mass Flow Meter for Gas Model: KEP-1...

  • Page 2: Table Of Contents

    Regulation Use ..................... 5     Safety Instructions ..................5     KEP-1 with Display with 4… 20 mA analogue- and pulse output ..6     KEP-1 without Display with 4… 20 mA analogue- and pulse output ..7    ...
  • Page 3 Dimensions ....................43     Disposal ...................... 44     EU Declaration of Conformance ..............45     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 KEP-1 K01/1223 page 3...

  • Page 4: Note

    Please read these operating instructions before unpacking and putting the unit into operation. Follow the instructions precisely as described herein. The instruction manuals on our website www.kobold.com are always for currently manufactured version of our products. Due to technical changes, the instruction manuals available online may not always correspond to the product version you have purchased.

  • Page 5: Regulation Use

    In addition to these operating instructions, local or national regulations must be observed where applicable. Make sure that the KEP-1 is only operated within the permissible limits specified on the nameplate. Otherwise, there is a danger to people and material and...

  • Page 6: Kep-1 With Display With 4

    KEP-1 standard version 92.7 m/s, please take the flow rates from the tables on pages 14-15 KEP-1 max. version 185 m/s, please take the flow rates from the tables on pages 16-17 KEP-1 high speed version 224 m/s, please take the flow rates from the tables on pages 18-19 5.1 KEP-1 with Display with 4…...

  • Page 7: Kep-1 Without Display With 4

    1" with inner diameter 25.0 mm, 4 mA = 0 m³/h and 20 mA = 122.2 m³/h 2" with inner diameter 53.1 mm, 4 mA = 0 m³/h und 20 mA = 600.0 m³/h 6. Operation The KEP-1 is a compact consumption counter for compressed air and gases optional with Display. Special features:...

  • Page 8: Installation

    15 x D 5 x D 2x elbow á 90° 20 x D 5 x D in einer Ebene 2x elbow á 90° 35 x D 5 x D 3-dimensional Control valve 45 x D 5 x D page 8 KEP-1 K01/1223...

  • Page 9: Installation Kep-1

    7.3 Installation KEP-1 The installation of the sensor is done via a ball valve ½ ". If no valid measuring point with a ball valve ½ " is available there are following ways to set up a measuring point.

  • Page 10: Installation Of The Sensor

    7.4 Installation of the Sensor 7.4.1 Mounting KEP-1 onto the ball valve  Assembly is carried out by inserting the connection thread with gasket. (G1/2“ thread, SW 32) into the ball valve with ½"internal thread.
  • Page 11 ±2° in relation to ideal position as otherwise the measuring accuracy will decrease. Calculation mounting depth: Alignment flow direction Sensor alignment A max. angle deviation of ±2° is permitted to ensure correct measured values. KEP-1 K01/1223 page 11...

  • Page 12: Display Head Position

    180 e.g. in case of reverse flow direction. For this purpose, the 6 fastening screws are to be released and the display head rotated 180°. Caution: It must be ensured that the connection plugs are still plugged and the gasket is installed correctly. page 12 KEP-1 K01/1223...

  • Page 13: Measuring Ranges

    For changing the inner pipe diameter and adjusting the 4…20 mA scaling, please refer to chapter “Operation”. Note: The consumption sensor KEP-1 corresponds with the latest state of technology and can generally be used for burnable and non-burnable gases. If this consumption sensor is used for measurement of burnable gases (e.g.

  • Page 14: Maximum Flow Ranges „Low Speed

    383,8 652,5 413,0 383,8 397,9 409,3 247,0   64,2 479,5 441,0 749,8 474,6 441,0 457,2 470,3 283,8 Referred to DIN 1945 / ISO 1217 (20°C, 1000mbar) and compressed air. Referred to DIN 1343: 0°C, 1013,25 mbar page 14 KEP-1 K01/1223...
  • Page 15 88454,9 150390,8 95189,7 88454,9 91706,5 94341,5 56920,6   1000,0 118752,2 109203,6 185667,6 117518,1 109203,6 113217,9 116471,0 70272,3 Referred to DIN 1945 / ISO 1217 (20°C, 1000mbar) and compressed air. Referred to DIN 1343: 0°C, 1013,25 mbar KEP-1 K01/1223 page 15...

  • Page 16: Maximum Flow Ranges „Standard

    736,8 758,9 457,9 92,7   64,2 889,1 817,6 1390,0 879,8 817,6 846,7 872,0 526,1 92,7 2) Referred to DIN 1945 / ISO 1217 (20°C, 1000mbar) and compressed air. 3) Referred to DIN 1343: 0°C, 1013,25 mbar page 16 KEP-1 K01/1223...
  • Page 17 169831,2 174909,1 105530,6 92,7   1000,0 220166,6 202463,2 344215,1 217862,8 202463,2 209668,2 215937,1 130284,7 92,7 2) Referred to DIN 1945 / ISO 1217 (20°C, 1000mbar) and compressed air. 3) Referred to DIN 1343: 0°C, 1013,25 mbar KEP-1 K01/1223 page 17...

  • Page 18: Maximum Flow Ranges „Max Speed

    1420,0 1472,2 1514,5 913,7 185,0 64,2 1774,3 1631,7 2774,1 1755,9 1631,7 1691,6 1740,2 1050,0 185,0 2) Referred to DIN 1945 / ISO 1217 (20°C, 1000mbar) and compressed air. 3) Referred to DIN 1343: 0°C, 1013,25 mbar page 18 KEP-1 K01/1223...
  • Page 19 327282,7 339313,7 349063,4 210605,9 185,0 1000,0 439383,1 404052,7 686970,6 434817,4 404052,7 418905,8 430942,5 260007,2 185,0 2) Referred to DIN 1945 / ISO 1217 (20°C, 1000mbar) and compressed air. 3) Referred to DIN 1343: 0°C, 1013,25 mbar KEP-1 K01/1223 page 19...

  • Page 20: Maximum Flow Ranges „High Speed

    1782,5 1833,7 1106,4 224,0   64,2 2148,4 1975,6 3359,0 2126,1 1975,6 2048,3 2107,1 1271,3 224,0 2) Referred to DIN 1945 / ISO 1217 (20°C, 1000mbar) and compressed air. 3) Referred to DIN 1343: 0°C, 1013,25 mbar page 20 KEP-1 K01/1223...
  • Page 21 255677,0 154261,5 224,0   800,0 340486,3 313108,0 532346,4 336948,1 313108,8 324618,0 333945,5 201484,4 224,0   900,0 430928,0 396277,3 673750,9 426450,0 396278,4 410844,6 422649,7 255003,8 224,0   1000,0 532009,9 489231,3 831791,3 526481,5 489232,6 507215,6 521789,8 314819,5 224,0 KEP-1 K01/1223 page 21...

  • Page 22: Electrical Wiring

    Please cut and isolate cables. If no connection cable/ pulse cable is ordered the sensor will be supplied with a M12 connector plug. The user can connect the supply and signal cables as indicated in the connection diagram. page 22 KEP-1 K01/1223...

  • Page 23: Operation

    Alternatively, a 120R resistor can be installed in the plug between pin 2 and pin 4. 10. Operation Remark: In version with option display only. The operation of the KEP-1 is done by the two capacitive key buttons Up () und  Enter ( KEP-1 K01/1223...

  • Page 24: Initialization

    KEP-1 10.1 Initialization After switching on the KEP-1, the initialized screen is displayed followed by the main menu. 10.2 Main menu  Switching to pages 2-4 or back by pressing key „ “ AV-Time (Period for average value calculation) could be changed under Sensor Setup.-Advanced–...

  • Page 25: Settings

    KEP-1 10.3 Settings The settings menu could accessed by pressing the key „OK“. But the access to the settings menu is password protected. 10.3.1 Sensor Setup Setup → Sensor Setup KEP-1 K01/1223 page 25...
  • Page 26 Input / change tube diameter Settings→ Sensor Setup→ Diameter 10.3.1.2 Input / change consumption counter Setup → Sensor Setup→ Total Counter → Unit button Important! When the counter reach 100000000 m³ the counter will be reset to zero. page 26 KEP-1 K01/1223...
  • Page 27  Alternatively, 0 °C and 1013 hPa (=standard cubic meter) can also be entered as a reference.  Do not enter the operation pressure or the operation temperature under reference conditions! Setup → Sensor Setup→ Advanced KEP-1 K01/1223 page 27...
  • Page 28 KEP-1 Setup → Sensor Setup → Advanced → Ref.Pref Setup → Sensor Setup→ Advanced →Ref.Temp Setup → Sensor Setup→ Advanced → Filtertime Setup → Sensor Setup→ Advanced → AV-Time page 28 KEP-1 K01/1223...
  • Page 29 KEP-1 10.3.1.5 Setting of Zeropoint and Low-flow cut off Setup → Sensor Setup→ ZP Adjust Setup → Sensor Setup → ZP Adjust → ZeroPnt Setup → Sensor Setup → ZP Adjust →CutOff KEP-1 K01/1223 page 29...
  • Page 30 10.3.2 Modbus Settings 10.3.2.1 Modbus RTU Setup The Flow sensors KEP-1 comes with a Modbus RTU Interface. Before commissioning the sensor, the communication parameters  Modbus ID, Baudrate, Parity und Stop bit must be set in order to ensure the communication with the Modbus master.
  • Page 31 1 = even 2 = odd   0 = 1 Stop Bit 2004 2003 UInt16 Number of Stopbits 1 = 2 Stop Bit 0xABCD = Big Endian 2005 2004 UInt16 Word Order 0xABCD 0xCDAB = Middle Endian KEP-1 K01/1223 page 31...
  • Page 32 Flow in cfm 1181 1180 Float Flow in Ncfm 1189 1188 Float Flow in kg/h 1197 1196 Float Flow in kg/min 1205 1204 Float Flow in kg/s 1213 1212 Float Flow in kW 1221 1220 Float page 32 KEP-1 K01/1223...
  • Page 33 GasTemp °C 1419 1418 Float       GasTemp °F 1427 1426 Float Remark: For more additional Modbus values please refer to separate Instruction manual Modbus Installation and Operating Instructions for the sensors KEP-1 and KEP-2. KEP-1 K01/1223 page 33...
  • Page 34 1 m³ / Pulse 180000 3000 3000000 Table 1 Maximum flow for pulse output Entering pulse values that are not allow a presentation to the full scale value, are not allowed. Entries are discarded and error message displayed. page 34 KEP-1 K01/1223...
  • Page 35 KEP-1 10.3.4 User Setup. 10.3.4.1 Password Settings → User Setup. → Password 10.3.4.2 Language Settings → User Setup. → Language KEP-1 K01/1223 page 35...
  • Page 36 KEP-1 10.3.4.3 Display/Touch Settings → User Setup. → Display / Touch 10.3.5 Advanced Settings → Advanced 10.3.6 4 -20 mA Settings → 4-20mA page 36 KEP-1 K01/1223...
  • Page 37 KEP-1 Settings →4-20mA → Channel 1 KEP-1 K01/1223 page 37...
  • Page 38 KEP-1 Settings → 4 -20mA → Error Current page 38 KEP-1 K01/1223...

  • Page 39: Status/Error Messages

    11. Status/Error messages 11.1 Status messages  On the part of Kobold Messring, a regular re-calibration is recommended, see chapter 13. At delivery, the date at which the next recalibration is recommended is internally entered. When this date is reached, a message appears in the display with the status message „CAL“.

  • Page 40: Error Messages

    Low Voltage 4-20mA  For sensors with a galvanically isolated 4-20mA output, a min. Supply voltage of 17.5 V is required. If this value is undershot, the error message „Low Voltage 4- 20 mA“ is displayed. page 40 KEP-1 K01/1223...

  • Page 41: Maintenance

    The sensor head can be cleaned by carefully moving it back and forth in warm water with a small amount of washing-up liquid. Avoid physical intervention on the sensor (e.g. using a sponge or brush). If soiling cannot be removed, the manufacturer must carry out service and maintenance. KEP-1 K01/1223 page 41...

  • Page 42: Re-Calibration

    The calibration intervals should comply with your internal specification. According to DIN ISO we recommend a calibration interval of one year for the instrument KEP-1. On request and additional payment, calibration-certificates could be issued. The precision is given due to use DKD-certified flow meters and verifiable 17.

  • Page 43: Technical Information

    KEP-1 The warranty time for the KEP-1 is 12 months. If no other definitions are given the accessory parts have a warranty time of 6 months. Warranty services do not extend the warranty time. If in addition to the warranty service necessary repairs, adjustments or similar are carried out the warranty services are free of charge but there is a charge for other services such as transport and packaging costs.

  • Page 44: Disposal

    (Cd, Hg, Li or Pb) of the heavy metal that is decisive for the classification as containing pollutants: 1. „Cd" stands for cadmium 2. „Hg" stands for mercury 3. „Pb" stands for lead 4. „Li" stands for lithium Electrical and electronic equipment page 44 KEP-1 K01/1223...

  • Page 45: Eu Declaration Of Conformance

    KEP-1 22. EU Declaration of Conformance We, KOBOLD Messring GmbH, Nordring 22-24, 65719 Hofheim, Germany, declare under our sole responsibility that the product: Thermal Mass Flow Meter for Gas model: KEP-1 to which this declaration relates is in conformity with the following EU directives...

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