DOG-1/-3. Oscillation Flowmeter. for gases. Measuring ranges: m 3 /h air : 120 C. p max. : PN 40; t max

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1 Oscillation Flowmeter for gases measuring monitoring analysing DOG1/3 Measuring ranges: m 3 /h air p max : PN 40; t max : 120 C Connection: flange DN DN 400 Material: cast iron, steel or stainless steel Accuracy: ±1.5 % of measured value No moving parts Longterm stability S5 1/ KOBOLD companies worldwide: ARGENTINA, AUSTRIA, BELGIUM, BULGARIA, CANADA, CHILE, CHINA, COLoMBIA, CZECHIA, DOMINICAN REPUBLIC, EGYPT, FRANCE, GERMANY, GREAT BRITAIN, HUNGARY, INDIA, INDONESIA, ITALY, MALAYSIA, MEXICO, NETHERLANDS, PERU, POLAND, ROMANIA, SINGAPORE, SOUTH KOREA, SPAIN, SWITZERLAND, TAIWAN, THAILAND, TUNISIA, turkey, USA, VIETNAM KOBOLD Messring GmbH Nordring 2224 D65719 Hofheim/Ts. Head Office: +49(0) (0) info.de@kobold.com 1

2 Oscillation Flowmeter Model DOG1, DOG3 Description The KOBOLD flowmeter DOG1 and DOG3 are used for noncontact flow measurement of gases. The medium flows through an orifice in a tube. Bypass bores are located at the sides. The dynamic pressure at the orifice causes part of the gas volumetric flow to flow into the bypass. The division ratio remains constant over the whole measuring range. The bypass channel contains the Oscillator the measuring cell itself. When the gas flows through the measuring cell, a gas column oscillates in a Ushaped channel mounted to the left and right. This oscillation frequency is proportional to the flow velocity and thus to the total volume flow. The oscillation frequency is sensed with a hot wire sensor. An electrical alternating signal is generated that is displayed in the seriesconnected. Application The inner, connected flow channels are generously dimensioned. The constant changes of direction of the flow in the channels have a selfcleaning effect. The devices are therefore extremely dirt resistant and have no consumables. The mounting position can be chosen at will. When condensate forms in the gas, the horizontal mounting position with the sensing element pointing upwards is recommended. The gas flow velocity anywhere in the pipework upstream of the flowmeter should not exceed the sound velocity. Pressure drops above critical and pulsating streams must be avoided. The recommended inlet pipe section is 10xDN and the outlet pipe section 5xDN. Areas of Application Compressed air Natural gas, biogas, fermentation gas Propane Hydrogen gas Nitrogen Argon Technical Data Measuring accuracy: ±1.5% of meas. value (at Qt 100%*) ±5% of measured value (at 1%Qt *) *The lower limit Q t depends on the density Qt= 8% at density 1 kg/m 3 Qt= 4% at density 2 kg/m 3 Qt= 2% at density 4 kg/m 3 Qt= 1% at density 8 kg/m 3 Repeatability: 0.1% of measured value Temperature span: C C (ExVersion) option C (Exversion) Ambient temperature: max. 80 C C (ExVersion) Operating pressure: DOG11/12.., DOG31/32..: PN 16 DOG12/13.., DOG32/33..: PN 40 Span: DOG1..: 1:100 DOG3..: 1: 50 Sensor: hotwire, RDC Protection: IP 65 Materials Housing: DOG11..: cast iron DOG13..: steel DOG33..: steel DOG12/32..: st. steel / Orifice: stainless steel Sensing element: polyphenylene sulfide (PPS) Sensor: platinum Gaskets: silicone, nitrile or FPM Electronics DOG X Electrical connection: conduit thread Protection: IP 65 Display: 4digit LCD display, counter Power supply: 230 V AC 10%, +12%/ Hz Input: hot wire sensor Pulse output 1: 12 V DC, max.100 ma, open collector Pulse output 2: potentialfree contact decadic 250 V AC,max. 3 A Analogue output: ma max. 500 Ω Ambient temperature: C Permissible distance: max. 50 m to DOG1, DOG3 max m to DOG2 Connection cable: minimum 0.5 mm 2, screening recommended ExVersion: ` II 1G EEx ia IIC T4 2 1/

3 Oscillation Flowmeter Model DOG1, DOG3 1/ Electronics DOG W/Z/Q for DOGflowmeters and all meters with pulse detection by means of a proximity switch (model NAMUR) Electrical connection: terminal Protection: IP 65 Mounting type: wall mounting Display: 2 x digits LCD with backlit display line 1: flow rate (Nm 3 /h, Nm 3 /min, m 3 /h, m 3 /min, kg/h, kg/min), 7 digits, floating decimal point current pressure (barg), only available for option Q Default pressure for all models line 2: totaliser (Nm 3, m 3, kg), 12 digits, floating decimal point current temperature ( C, F, K), only available for option Q Default temperature for all models Engineering units are configured at the factory and should thus be mentioned in the P. O. while ordering. DOG W Display indication: flow rate/accumulated volume, resettable Output: pulse, 1224 V open collector or 12 V DC active DOG Z Display indication: Output: DOG Q Flow calculator input signal from: flow rate/accumulated volume, resettable 1/ pulse, 1224 V open collector or 12 V DC active 2/ ma, galvanic isolated (a) gas flowmeter pulse, (b) pressure transmitter ma (1x bar g), (c) temperature sensor Pt 100 Builtin calculation function for PT correction Display indication of all process parameters Output signal: (i) pulse, resettable, for selected units, e.g. m 3, Nm 3 or kg (ii) ma, galvanic isolated, with selected volume or mass units, such as m 3 /h, Nm 3 /h or kg/h All models have a builtin linearisation function of the flow meter signal Input signal (pulse train) Flowmeter DOG: directly or Proximity switch: max 8 V DC (high level) Speed range: Hz Over voltage protection: 24 V Input signal (analogue) Temperature sensor: Pt 100 (four wire lead comp.) Pressure transducer: ma Basic measuring resolution: 12 bit Accuracy: 0.05 % at 20 C Update rate: 1 update/sec Reverse polarity: no ill effects Over current limit: 12 V DC, 100 ma (fault protected) Output signal (i) pulse train assignable to uncompensated or PT compensated volume total, or mass total 12 V DC active (voltage pulse) alt. passive (open collector, max 24 V DC load) pulse width adjustable (ii) isolated analogue output signal ma assignable to uncompensated or PT compensated flow rate Adjustable damping: time constant sec Accuracy: 0.1% of full scale at 20 C Update rate: 5 updates/sec Maximum load: 500 Ω 3

4 Oscillation Flowmeter Model DOG1, DOG3 Order Details for DOG1 with flange (Example: DOG1101L F25N S Q) Measuring range air [m³/h] Material cast iron DOG1101L.. DOG1102L.. DOG1103L.. DOG1107L.. DOG1108L.. DOG1109L.. DOG1110L.. DOG1111L.. DOG1112L.. DOG1116L.. DOG1117L.. DOG1118L.. DOG1119L.. DOG1120L.. DOG1121L.. Model Connection flange Gasket Remote Material Material Standard PN 16 Special PN 40 steel st. steel only GG, VA only steel, st. steel DOG1304L.. DOG1305L.. DOG1306L.. DOG1313L.. DOG1314L.. DOG1315L.. DOG1322L.. DOG1323L.. DOG1324L.. DOG1325L.. DOG1326L.. DOG1327L.. DOG1328L.. DOG1329L.. DOG1330L.. DOG1331L.. DOG1332L.. DOG1333L.. DOG1334L.. DOG1335L.. DOG1336L.. DOG1337L.. DOG1338L.. DOG1339L.. DOG1340L.. DOG1341L.. DOG1342L.. DOG1201L.. DOG1202L.. DOG1203L.. DOG1207L.. DOG1208L.. DOG1209L.. DOG1210L.. DOG1211L.. DOG1212L.. DOG1213L.. DOG1214L.. DOG1215L.. DOG1216L.. DOG1217L.. DOG1218L.. DOG1219L.. DOG1220L.. DOG1221L.. DOG1222L.. DOG1223L.. DOG1224L.. DOG1225L.. DOG1226L.. DOG1227L.. DOG1228L.. DOG1229L.. DOG1230L.. DOG1231L.. DOG1232L.. DOG1233L.. F25N = DN 25 F25S = DN 25 F32N = DN 32 F32S = DN 32 F40N = DN 40 F40S = DN 40 F50N = DN 50 F50S = DN 50 F65N = DN 65 F65S = DN 65 F80N = DN 80 F80S = DN 80 F1HN = DN 100 F1HS = DN 100 F1ZN = DN 125 F1ZS = DN 125 F1FN = DN 150 F1FS = DN 150 F2HN = DN 200 F2HS = DN 200 F2FN = DN 250 F2FS = DN 250* F3HN = DN 300 F3HS = DN 300 F3FN = DN 350 F4HN = DN 400 * not for DOG12 (stainless steel) ** Engineering units are configured at the factory and should thus be mentioned in the P.O. while ordering Please state the exact operating conditions (gas types, flow volume, pressure, temperature, installation position etc.) when ordering. S = silicone N = nitrile V = FPM with external...e RDC input, without display, with EX protection, with analogue and pulse output...x RDC input, with display for instantaneous value and total, with EX protection, with analogue and pulse output...w** resettable pulse output...z** resettable, pulse output, ma...q** flow calculator, input: pulse, Pt 100, ma (pressure) output: pulse and ma 4 1/

5 Oscillation Flowmeter Model DOG1, DOG3 Order Details for DOG3 with flange (Example: DOG3301L F25N S Q) Measuring range air [m³/h] Material steel DOG3301L.. DOG3302L.. DOG3303L.. DOG3307L.. DOG3308L.. DOG3309L.. DOG3310L.. DOG3311L.. DOG3312L.. DOG3313L.. DOG3314L.. DOG3315L.. DOG3316L.. DOG3317L.. DOG3318L.. DOG3319L.. DOG3320L.. DOG3321L.. DOG3322L.. DOG3323L.. DOG3324L.. DOG3325L.. DOG3326L.. DOG3327L.. DOG3328L.. DOG3329L.. DOG3330L.. DOG3331L.. DOG3332L.. DOG3333L.. DOG3334L.. DOG3335L.. DOG3336L.. DOG3337L.. DOG3338L.. DOG3339L.. DOG3340L.. DOG3341L.. DOG3342L.. Model Connection flange Gasket Remote Material Standard PN 16 Special PN 40 st. steel only GG, VA only steel, st. steel DOG3201L.. DOG3202L.. DOG3203L.. DOG3207L.. DOG3208L.. DOG3209L.. DOG3210L.. DOG3211L.. DOG3212L.. DOG3213L.. DOG3214L.. DOG3215L.. DOG3216L.. DOG3217L.. DOG3218L.. DOG3219L.. DOG3220L.. DOG3221L.. DOG3222L.. DOG3223L.. DOG3224L.. DOG3225L.. DOG3226L.. DOG3227L.. DOG3228L.. DOG3229L.. DOG3230L.. DOG3231L.. DOG3232L.. DOG3233L.. DOG3234L.. DOG3235L.. DOG3236L.. DOG3237L.. DOG3238L.. DOG3239L.. DOG3240L.. DOG3241L.. DOG3242L.. F25N = DN 25 F25S = DN 25 F40N = DN 40 F40S = DN 40 F50N = DN 50 F50S = DN 50 F65N = DN 65 F65S = DN 65 F80N = DN 80 F80S = DN 80 F1HN = DN 100 F1HS = DN 100 F1ZN = DN 125 F1ZS = DN 125 F1FN = DN 150 F1FS = DN 150 F2HN = DN 200 F2HS = DN 200 F2FN = DN 250 F2FS = DN 250 F3HN = DN 300 F3HS = DN 300 F3FN = DN 350 F3FS = DN 350 F4HN = DN 400 F4HS = DN 400 * Engineering units are configured at the factory and should thus be mentioned in the P.O. while ordering S = silicone N = nitrile V = FPM with external...x RDC input, with display for instantaneous value and total, with EX protection, with analogue and pulse output...w* resettable pulse output...z* resettable, pulse output, ma...q* flow calculator, input: pulse, Pt 100, ma (pressure) outputs: pulse and ma Please state the exact operating conditions (gas types, flow volume, pressure, temperature, installation position etc.) when ordering. Order Details Spare Sensor for gas flowmeter max. medium temperature: +60 C Order Code: ERSDOG5193 1/

6 Oscillation Flowmeter Model DOG1, DOG3 Pressure Loss/Flow The diagram applies for gases with a density of air at NPT (0 C and 1000 mbar). The pressure loss is always proportional to the density of the gas. For example, the pressure loss doubles at 100% higher operating pressure. Calculating the Actual Density The actual density can be calculated with the following formula: D = D 0 *P *T 0 T D 0 = density at 1 bar abs. and 0 C (= 273 K) T = temperature in K (= C for example 20 C = = 293 K) T 0 = 273 K P = operating pressure in bar (absolute pressure) Dimensions and Weight DOG1 L H Calculating the Norm Flow P 273 Q N = Q T Q N = norm flow at bar abs. and 0 C Q = operating flow P = operating pressure in bar (absolute pressure) T = operating temperature in K D Dh Ds DN L D Dh Ds 6 Number of holes H H with AVF Weight [kg] 1/

7 Oscillation Flowmeter Model DOG1, DOG3 Dimensions and Weight DOG3 Dimensions of Electronics DOG E/X DN DN D Weight [kg] Dimensions of Electronics DOG...W/Z/Q D=5 194 Accessory Valve in the bypass (between measuring tube and measuring cell) for easy sensor changing and for protection of the sensor when starting the installation. 1/