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Kobold DOG-4 Operation Manual

Electronic option m0/n0/o0/p0 flow computer for corrected gas volume
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DOG-4-6
electronic option
M0/N0/O0/P0
FLOW COMPUTER FOR CORRECTED GAS VOLUME
Signal input flowmeter - type P: pulse
Signal input pressure - type IA: 4-20mA
Signal input temperature - type TP: PT100 2- or 3 wire
Signal output: 4-20 mA ref. flow rate and pulse ref. volume quantity
Option: Modbus communication

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Summary of Contents for Kobold DOG-4

  • Page 1 DOG-4-6 electronic option M0/N0/O0/P0 FLOW COMPUTER FOR CORRECTED GAS VOLUME Signal input flowmeter - type P: pulse Signal input pressure - type IA: 4-20mA Signal input temperature - type TP: PT100 2- or 3 wire Signal output: 4-20 mA ref. flow rate and pulse ref. volume quantity...

  • Page 2: Contents Manual Safety Instructions

    electronic option M0/N0/O0/P0 SAFETY INSTRUCTIONS  Any responsibility is lapsed if the instructions and procedures as described in this manual are not followed.  LIFE SUPPORT APPLICATIONS: The flow computer is not designed for use in life support appliances, devices, or systems where malfunction of the product can reasonably be expected to result in a personal injury.

  • Page 3: About The Operation Manual

    A "note" indicates actions or procedures which, if not performed correctly, may indirectly affect operation or may lead to an instrument response which is not planned. 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...

  • Page 4: Table Of Contents

    electronic option M0/N0/O0/P0 CONTENTS MANUAL Safety instructions ........................2  Safety rules and precautionary measures .................. 2  About the operation manual ......................3  Contents manual ........................... 4  1.  Introduction ......................... 6  2.  Operational ........................7  3.  Configuration ......................10  1 - Total .......................... 15  ...
  • Page 5 M0/N0/O0/P0 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. If you need an instruction manual that corresponds to the purchased product version, you can request it from us free of charge by email (info.de@kobold.com) in PDF format, specifying the relevant invoice number and...

  • Page 6: Introduction

      1.1. General notice This operating manual provides assistance and instructions to clients of Kobold Messring GmbH for the installation and configuration of the flow computer when used in combination with a type DOG-… oscillation flowmeter. This operating manual is a supplement to existing documents, such as the data sheet and the operating manual for the DOG-…...

  • Page 7: Operational

    electronic option M0/N0/O0/P0 The flow computer is installed together with, and pre-wired to, a DOG-… transmitter in a control box. A connector rail with all required inputs and outputs is provided for the user. The rail’s connection layout is displayed on the switch box’s safety cover. Electric wiring must be done in accordance with the wiring diagram following in chapter 4.
  • Page 8 electronic option M0/N0/O0/P0 2.2. CONTROL PANEL The following keys are available: Fig. 2: Control Panel. Functions of the keys   This key is used to program and save new values or settings. It is also used to get access to SETUP-level; please read chapter 3.  ...
  • Page 9 electronic option M0/N0/O0/P0 2.3. OPERATOR INFORMATION AND FUNCTIONS In general, the flow computer will always act function at Operator level. The information displayed is dependent upon the SETUP-settings. The signal generated by the connected flowmeter is measured by the flow computer in the background, whichever screen refresh rate setting is chosen.

  • Page 10: Configuration

    electronic option M0/N0/O0/P0 DISPLAY ALARMS  Out of Range When "(-)9999" is displayed, the frequency is out of range of the low or high limit settings. Fig. 4: Example of Out of Range alarm.  Alarm 01-03 When "alarm" is displayed, please consult Appendix B: Problem Solving. 3.
  • Page 11 electronic option M0/N0/O0/P0 Matrix structure SETUP-level: SCROLLING THROUGH SETUP-LEVEL Selection function-group and function: SETUP is divided into several function groups and functions. Each function has a unique number, which is displayed below the word "SETUP" at the bottom of the display. The number is a combination of two figures. The first figure indicates the function- group and the second figure the function.
  • Page 12 electronic option M0/N0/O0/P0 To change or a select a value or value: To change a value, use  to select the digits and  to increase that value. To select a setting, both  and  can be used. When the new value is not valid, the increase sign or decrease-sign will be displayed while you are programming.
  • Page 13 electronic option M0/N0/O0/P0 3.2.2. OVERVIEW FUNCTIONS SETUP LEVEL SETUP FUNCTIONS AND VARIABLES  TOTAL L - m3 - kg - lb - GAL - USGAL - bbl - no unit   11  UNIT 0 - 1 - 2 - 3 (Ref: displayed value)  ...
  • Page 14 electronic option M0/N0/O0/P0 TEMPERATURE 2 - 3   61  NR. OF WIRES  1 - 99   62  FILTER  °C - °F - K   63  DISPLAY PRESSURE mbar - bar- psi   71  UNIT  0.000001 - 9,999,999 unit   72  SPAN  0 - 6  ...

  • Page 15: Total

    electronic option M0/N0/O0/P0 3.2.3. EXPLANATION SETUP-FUNCTIONS 1 - Total MEASUREMENT SETUP - 11 determines the measurement unit for total and accumulated total. The following units can be selected: L - m3 - kg - lb. - GAL - USGAL - bbl - _ (no unit). Alteration of the measurement unit will have consequences for operator and SETUP-level values.

  • Page 16: Flow Rate

    electronic option M0/N0/O0/P0 2 - Flow rate The settings for total and flow rate are entirely separate. In this way, different units of measurement can be used for each e.g. cubic meters for total and liters for flow rate. The display update time for flow rate is one second or more. Note: these settings also influence the analog output.

  • Page 17: Display

    electronic option M0/N0/O0/P0 3 - Display When used with the internal battery option, the user may hold the concern of reliable measurement over a long period of time. The flow computer has several smart power management functions to extend the battery life time significantly. Two of these functions can be set: FUNCTION The large 17mm digits can be set to display total or flow rate.

  • Page 18: Flowmeter

    electronic option M0/N0/O0/P0 4 - Flowmeter SIGNAL The flow computer is able to handle several types of signals. The type of flowmeter pickup / signal is selected with SETUP 41. Note: The selections "active pulse" offers a detection level of 50 % of the supply voltage.

  • Page 19: Linearization

    electronic option M0/N0/O0/P0 5 - Linearization The linearization function is available to approach the real flowcurve better as with the general K-factor entered with setup 14 and 24. This to obtain a more accurate flow rate, total and accumulated total as well as a pulse output at any flowmeter frequency.

  • Page 20: Temperature

    electronic option M0/N0/O0/P0 FREQ / FLOW RATE The frequency is displayed at the bottom line of the display. 1-15 The maximum frequency is 999.99 Hz. When the frequency at the linearization entry is set to 0.00Hz, the entry is not used in the linearization.

  • Page 21: Pressure

    electronic option M0/N0/O0/P0 7 - Pressure MEASURING UNIT SETUP - 71 determines the measurement unit for pressure. The following units can be selected: mbar - bar - psi SPAN With this setting, the measurement range of the 4-20mA pressure sensor is determined according the selected measurement unit (setting 71).

  • Page 22: Equation

    electronic option M0/N0/O0/P0 CALIBRATE HIGH With this setting it is possible to calibrate the input value for 20mA as the signal from the sensor might not be exact 20.0 mA at maximum signal. This function will measure the real output value at maximum signal. ...

  • Page 23: Analog Output

    electronic option M0/N0/O0/P0 9 - Analog output A linear analog 4-20 mA signal is generated according to the flow rate with a 10 bits resolution. The settings for flow rate (SETUP - 2) influence the analog output directly. The relationship between rate and analog output is set with the following functions: DISABLE / ENABLE The analog output can be disabled.
  • Page 24 electronic option M0/N0/O0/P0 FILTER This function is used to stabilize the analog output signal. The output value is updated every 0.1 second. With the help of this digital filter a more stable but less precise reading can be obtained. The filter principal is based on three input values: the filter level (01-99), the last analog output value and the last average value.

  • Page 25: A - Impuls

    electronic option M0/N0/O0/P0 A - Impuls PULSE WIDTH The pulse width determines the time that the output will be switched; in other words the pulse length. The minimum time between the pulses is as long as the period time (50/50 duty cycle). The pulse width is set in seconds in the range 0.001 - 9.999 sec.

  • Page 26: C - Others

    electronic option M0/N0/O0/P0 C - Others MODEL For support and maintenance it is important to have information about the characteristics of the flow computer. Your supplier will ask for this information in the case of a serious breakdown or to assess the suitability of your model for upgrade considerations.
  • Page 27 electronic option M0/N0/O0/P0 4.2 Measuring cable in Ex areas An Ölflex EP (without shield) or Ölflex EBCY (with shield) may be used as measuring cable between the sensor and transmitter. Alternatively a cable with comparable properties may be used. Ölflex EB Li=0.65 mH/km Cisy=110 nF/km Ölflex EBCY Li=0.65 mH/km Cisy=135 nF/km Ciasy=185 NF/km The length of the cable may not exceed 100m.
  • Page 28 electronic option M0/N0/O0/P0 4.3.1. TERMINAL CONNECTORS The following terminal connectors are available: Fig. 6: Overview terminal connectors for electronic options M0/N0/O0/P0 Terminal PE – 1 – 2 (power supply V AC  10%) M/N: O/P: Terminal 21 – 22: Connection to the measuring sensor Use terminal connectors 21 and 22 to connect the transmitter and the flow computer with the measuring sensor of the DOG-...
  • Page 29 electronic option M0/N0/O0/P0 Terminal 5 – 6 (scaled pulse output according to linearised total) Setup 8 (par. 3.2.3.) determines the pulse output function. The maximum pulse frequency of this output is 60Hz. Max. driving capacity 50mA @ 24V per output. Terminal 7 –...

  • Page 30: Maintenance

    electronic option M0/N0/O0/P0 Terminal 13 – 14 – 15 – 16: MODBUS communication The following MODBUS types are available: Type CH: Communication RS485 2-wire / Protocol MODBUS RTU (optional) Type CB: Communication RS232 / Protocol MODBUS RTU (on request) Full serial communications and computer control in accordance with RS485 (length of cable max.

  • Page 31: Appendix A: Technical Specification Of Flow Computer

    electronic option M0/N0/O0/P0 5.2. REPAIR This product cannot be repaired by the user and must be replaced with an equivalent certified product. Repairs should only be carried out by the manufacturer or his authorized agent. APPENDIX A: TECHNICAL SPECIFICATION OF FLOW COMPUTER GENERAL Display Type...
  • Page 32 electronic option M0/N0/O0/P0 OUTPUTS Analog output Active 4-20 mA output Function transmitting compensated flow rate. Accuracy 10 bit. Error < 0.05% - update 10 times a second. Software function to calibrate the 4.00mA and 20.00mA levels precisely within set-up. Load max.

  • Page 33: Appendix B: Problem Solving

    electronic option M0/N0/O0/P0 Flow rate Digits 7 digits. Units mL, L, m3, Gallons, KG, Ton, lb, bl, cf, RND, ft3, scf, Nm3, Nl, - no units. Decimals 0 - 1 - 2 or 3. Time units /sec - /min - /hr - /day. Line temperature Digits 6 digits.

  • Page 34: Appendix C: Communication Variables

    electronic option M0/N0/O0/P0 APPENDIX C: COMMUNICATION VARIABLES Remarks: Below, an overview of the flow computer specific variables; other common variables are described  in the standard table. All numbers are decimal numbers, unless otherwise noted.   Following variables of the standard table (var00-var30) are not valid for this product and will be responded with value 1: var00, 03-05, 07,08, 16-22, 24, 26-29.
  • Page 35 electronic option M0/N0/O0/P0 DESCRIPTION BYTES VALUE REMARKS DISPLAY display function 0=total (40h) 1=flow rate set flow rate monitor 1 0=operator level (44h) 1=SETUP level POWERMANAGEMENT LCD update time 0=fast (50h) 1=1sec 2=3sec 3=15sec 4=30sec 5=off power-mode battery 1 0=operational (51h) 1=shelf FLOWMETER flowmeter signal...
  • Page 36 electronic option M0/N0/O0/P0 DESCRIPTION BYTES VALUE REMARKS PRESSURE unit 0=mbar (220h) 1=bar 2=psi 3=no unit span 1..9,999,999 (222h) decimals span 0…6 (225h) offset 0.000..9,999.999 unit as var544 (226h) step 0.001 calibration low 0=default (5Ah) (4mA) 1=calibrate 2=cal set calibration high 0=default (5Bh) (20mA)
  • Page 37 electronic option M0/N0/O0/P0 OTHER FLOW COMPUTER VARIABLES FOR COMMUNICATION TOTAL - variable number 566 (236h) – 6 bytes Read total: The value of total read using communication might differ from the value that appears on the display. This is due to the fact that the display can only display up to seven digits (for example when two decimals are selected for total and total has a value of 123456,78 the display will show 23456,78 while communication will read a “total”...

  • Page 38: Appendix D: Factory Settings For Flow Computer

    electronic option M0/N0/O0/P0 APPENDIX D: FACTORY SETTINGS FOR FLOW COMPUTER MENU FUNCTIONS FACTORY DEFAULT SETTINGS SETTINGS TOTAL UNIT DECIMALS 111111,1 K-FACTOR (enter with one decimal, according to 25) DECIMALS K-FACTOR FLOWRATE UNIT TIME UNIT DECIMALS 22222,22 K-FACTOR (enter with one decimal, according to 25) DECIMALS K-FACTOR CALCULATION DISPLAY...
  • Page 39 electronic option M0/N0/O0/P0 25 (i.e. 2,5 Bar) SPAN (Units dependent upon SETUP 71) DECIMALS SPAN 1,0 13 (Bar) OFFSET (Units dependent upon SETUP 71) FILTER CALIBRATE LOW default CALIBRATE HIGH default EQUATION EQUATION TYPE EG (fixed) NORMAL 0 (K) TEMPERATURE NORMAL PRESSURE 0 (Bar) (Units dependent upon SETUP 71)

  • Page 40: Eu Declaration Of Conformance

    M0/N0/O0/P0 6. EU DECLARATION OF CONFORMANCE We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole responsibility that the product: DOG-… electronic option M0/N0/O0/P0 (Flow computer) to which this declaration relates is in conformity with the standards noted below:...

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