Measuring cable in Ex areas ............. 12 Connection to the measuring sensor ..........12 Terminal assignment of the DOG-4… reader/transducer ....13 Terminal assignment of the electronic option G0/H0/I0/K0/M0/N0/O0/P0 ..............15 ...
Here the following ambient temperatures must be adhered to -20 °C ≤ Ta ≤ 60 °C The DOG-4 is suitable for use with gases of the explosion group IIC and temperature class ≥ T4. Further important details can be found in the EC Type Examination Certificate.
Ensure that only devices with ignition protection suitable for the operating zones are installed. All electronic operating resources connected must be suitable for the respective use. The operator is obligated to provide lightning protection according to local regulations. DOG-4 K08/0818 page 5...
The devices may be used only in the correct way and for the intended purpose in a normal industrial environment. Use for unsuitable purposes, will render all guarantees and liability of the manufacturer void! See Chapter 4, 5, 7 and 9. page 6 DOG-4 K08/0818...
Inspection of the entire system Responsibility of the operator Disposal Disposal of the packaging and the used parts must be carried out according to the regulations of the country in which the device is installed. DOG-4 K08/0818 page 7...
Flowmeter 5. Regulation Use DOG-4 type devices are used for measuring and monitoring the rate of flow. Only clean media may be measured, against which the materials used are resistant. Dirt particles and other impurities can impair the measurement results, in spite of the fact that the continuous change in direction of the flow ensures a self-cleaning effect.
The measuring converter normalises the measured oscillation to 0 Hz (without flow) and to 150 Hz for the end of the measuring range. View from underneath Platinum sensor View from above DOG-4 K08/0818 page 9...
(see figure below). The condensate can thus be removed before entering the flow meter. Should the temperature difference between ambient and medium be +20 °C or greater, the pipeline and the flow meter should be thermally insulated to prevent condensation. page 10 DOG-4 K08/0818...
8. Identification (Ex version) Flowmeter (DOG-4S) type plate (flange housing, measurement tube) There is a warning label on the plastic housing “WARNING – DANGER Of ELECTROSTATIC DISCHARGE – SEE OPERATING INSTRUCTIONS” Transducer (DOG-4A) type plate (see left) DOG-4 K08/0818 page 11...
To connect the measuring cable, first unscrew the lid of the connection box and remove the lid. Feed the cable through the cable gland and connect it to the connecting terminal (independent of polarity). When using a shielded cable, the shield must be connected to the grounding screw. page 12 DOG-4 K08/0818...
DOG-4 Terminal assignment of the DOG-4… reader/transducer Output 230 V Sensor 110 V 24 V 24 V Supply Output Sensor black orange blue for AC for DC L = 230 V/110 V/24 V outer conductor + = supply DC+ N= 230 V/110 V/24 V neutral conductor...
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DOG-4 < 0.5 V HIGH R+4.4 kΩ Example: Vs = 24 V =17 V @ R=10 kOhm, U =23 V @R=80 kOhm, HIGH HIGH Optical coupler output, external supply max. 30 V = 50 mA page 14 DOG-4 K08/0818...
This must be removed for the electrical connection. Note: Additional pressure and temperature sensors are required for the electronic options M0/N0/O0/P0 (flow computer). These sensors are not included in the scope of delivery. DOG-4 K08/0818 page 15...
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DOG-4 Wiring diagram electronic option DOG-4 G0/H0/I0/K0 Wiring diagram electronic option DOG-4 L0 Wiring diagram electronic option DOG-4 M0/N0/00/P0 Note: There is installation space for 2 additional Zener barriers in the housing if the pressure/temperature sensors do not have the required certification. Establishing contact in Ex areas can take place via terminals 17 to 20.
DOG-4 Connections of DOG-4 Transmitter with KOBOLD Evaluation Electronics ZED-X and ZOK-Zx 1,2 kOhm DOG-4 connection with ZED-Zx DOG-4 K08/0818 page 17...
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DOG-4 DOG-4 connection with ZOK-ZxP Notes: * The sensor supply from ZOK-ZxP must be set to 8 VDC. From the software menu of ZOK-Zx, the ‘Sensor type’ must be set to ‘PNP’ (For details please see the operating manual of ZOK-Zx electronics).
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DOG-4 Connection example for DOG-4 with ZOK-ZxK The sensor type must be set to "PNP" in the ZOK-ZX software menu (see operating manual ZOK-Zx electronics). DOG-4 K08/0818 page 19...
Avoid increasing the flow velocity to prevent the discharge rate from damaging the sensor. The output frequency of the DOG-4 is proportional to the measuring range. In the event of a sensor fault (breakdown or short circuit) the transistor output is permanently connected.
12.4 ERROR illuminated red Short circuit or interruption of the sensor circuit from the sensor to the transmitter. Check terminal “Sensor” of the terminal assignment Defective platinum sensor (target value: 40-60 Ohm) DOG-4 K08/0818 page 21...
For this, see point 13.1. Then unscrew the screws in the upper plate, separate the parts and clean the flow channel of the oscillator on both sides. page 22 DOG-4 K08/0818...
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Tighten the screws uniformly with a torque of 24 to 27 Nm. The figure at the lower left shows the required order when tightening. Otherwise the device may leak or be damaged. Flow channel bottom DOG-4 K08/0818 page 23...
II 1 G Ex ia IIC T4 Ga IECEx Transducer: [Ex ia Ga] IIC Sensor: Ex ia IIC T4 Ga Mounting: DIN Rail Dimensions: Width: 45 mm Heigth: 105.6 mm Depth: 113.6 mm Weight: approx. 200 g DOG-4 K08/0818 page 25...
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Decimal places: Flow: 0, 1, 2 or 3 Total: 0, 1, 2 or 3 Accumulated total: according to selection for total Backlightning: Signal input: Flow: DOG-4 sensor Power supply: G/H: 230 V ± 10 %, 50…60 Hz I0/K0: 110 V ±...
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Flow: 0, 1, 2 or 3 Total: 0, 1, 2 or 3 Accumulated total: according to selection for total Temperature/Pressure: 1 Backlightning: Signal input: Flow: DOG-4 sensor Temperature: PT100, 2- or 3-wire Pressure: 0(4)…20 mA (passive), 14-Bit resolution, 2- or 3-wire Power supply: M/N: 230 V ±...
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DOG-4 Display Note: Temperature and pressure sensors are not included in scope of delivery. page 28 DOG-4 K08/0818...
DOG-4 15. Order Details Order details for DOG-4 (Example: DOG-4200 S 50 0 A0 0) Measuring Model Pressure Connection Ball valve Electronics Options range air Material rating flange st.steel [PN] [size/type] DN25 DOG-42S0S25.. DN40 DOG-42S0S40.. 10…40 bar DOG-42S0S50.. DN50 0,12...12 ANSI 1“...
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DOG-4 Order details for DOG-4 (Example: DOG-4200 S 50 0 A0 0) (continuation) Measuring Model Pressure Connection Ball valve Electronics Options range air Material rating flange st. steel [PN] [size/type] 16 bar DN80 DOG-42F0F80.. 40 bar DN80 DOG-42F0S80.. 8.0…800 DOG-42F0A80..
P = operating pressure in bar (absolute pressure) Calculating the Norm Flow QN = norm flow at 1.013 bar abs. and 0 °C Q = operating flow P = operating pressure in bar (absolute pressure) T = operating temperature in K DOG-4 K08/0818 page 31...
DOG-4 18. EU Declaration of Conformance We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole responsibility that the product: Oscillation Flowmeter Model: DOG-4 to which this declaration relates is in conformity with the standards noted below: EN 61326:2013-07 Electrical equipment for measurement, control and laboratory...
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