OVZ. Oval Wheel Flow Meter. for viscous liquids l/min liquid. Measuring accuracy: ± 2.5% f.s. p max : 40 bar; t max : 80 C

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1 Oval Wheel Flow Meter for viscous liquids measuring monitoring analysing OVZ Model: OVZ OMeasuring O ranges: l/min liquid Measuring accuracy: ± 2.5% f.s. p max : 4 bar; t max : 8 Model: OVZ with compact electronics O O Viscosity range: - 8 mm 2 /s onnection: G ¼... G ¾ female OMaterial: O POM, PMM, PSU, aluminium Output: pulses S4 Model: OVZ /7-24 KOOLD companies worldwide: RGENTIN, USTRLI, USTRI, ELGIUM, ULGRI, ND, HILE, HIN, OLoMI, ZEHI, EGYPT, FRNE, GERMNY, GRET RITIN, HUNGRY, INDI, INDONESI, ITLY, MLYSI, MEXIO, NETHERLNDS, PERU, POLND, Republic of Korea, ROMNI, SINGPORE, SPIN, SWITZERLND, TIWN, THILND, TUNISI, turkey, US, VIETNM KOOLD Messring GmbH Nordring D-6579 Hofheim/Ts. Head Office: +49() () info.de@kobold.com

2 pplication The model OVZ oval wheel flow meters are used to measure, monitor and meter viscous liquids. The flow meters function independent of viscosity in the viscosity range between and 8 mm 2 /s. maximum pressure loss of bar has been defined at the factory. This results in different measuring ranges for different viscosities. The oval gearwheels are manufactured from highquality plastic. Function The OVZ oval wheel meter is a positive-displacement flow meter. The measuring element comprises two toothed precision oval gearwheels, which are driven by the liquid and thus roll together. fixed quantity of liquid is transported through the chambers for every turn of the oval-wheel pair. Permanent magnets or stainless steel pins are embedded in the oval gearwheels. The rotary motion is converted to a pulse signal by electrical sensors externally fitted to the measuring chamber. The pulse count is a measure of the flow rate. The signals are evaluated by downstream electronics (optional). Technical Details Viscosity range:... 8 mm 2 /s (option: mm 2 /s) mbient temperature: Medium temperature: Max. pressure: OVZ-.., OVZ-..2: bar OVZ-..3, OVZ-..4:6 bar OVZ-..5:4 bar ccuracy: ± 2.5% f. s. Filter mesh size: max. 3 μm Material: combination/case/cover OVZ-... / POM/POM OVZ / POM/PMM OVZ / aluminium /PMM OVZ / aluminium /PSU OVZ / aluminium /aluminium ovals wheels: POM axles: stainless steel.43 O-rings: NR, option FPM, EPDM ontactors: oxide ceramic magnets or stainless steel Frequency range:.3-9 Hz Hz Protection: IP 65 (..I4, -I32, -I33,..L 443,.. Z 3x) IP 67 (all others) Electronics 2 O O Frequency output (...I4;...I32;...I33) Power supply: 5-24 V D Power consumption: typically m Pulse output: Hall effect sensor NPN, asymmetrical, open collector, max. 5 m Electr. connection: connector socket DIN 4365 (...I4) aluminium adapter box with cable connection (...I32) aluminium cover box with circular (...I33) Frequency output (...I34) Power supply: 8-3 V D Power consumption: typically m Pulse output: PNP, asymmetrical, open collector, max. 2 m Electr. connection: 2 m PV cable Frequency output (...I35) Power supply: nominal 8.2 V D Pulse output: Namur, asymmetrical, max. approx. 3.5 m (typ..5 m) Electr. connection: 2 m PV cable Frequency output (...F3) Power supply: 2-28 V D Power consumption: m Pulse output: PNP, open collector, max. 25 m Electr. connection: Frequency output with frequency divider (...F3X) Power supply: 24 V D ±2% Power consumption: 5 m Pulse output: PNP, open collector, max. 25 m Electr. connection: Divisional factor: acc. to customer specification nalogue output (...L33;...L343,...L443) Power supply: 24 V D ±2% Output: 4-2 m, -2 m, 3-wire Max. load: 5 Ω Electr. connection: or DIN 4365 Option: plug-on display UF-3 (with DIN connector only) ompact electronics Display: 3-digit LED nalogue output: ()4...2 m adjustable, max. 5 W Switching outputs: (2) semiconductor PNP or NPN factory setting ontact operation: N/, N/O programmable Setting: via 2 keys Power supply: 24 V D ±2%, 3-wire, appr. m Electr. connection: Pointer indication with analogue output Housing: aluminium Indication: moving coil instrum., 24 indication Power supply: 24 V D ±2% Output: -2 m or 4-2 m, 3-wire Max. load: 25 Ω Electr. connection: /7-24

3 Electrical onnection OVZ-...I4 OVZ-...I32 OVZ-...I V...24 VD RL (-) GND PE NPN PE +5 V...24 VD RL (-) GND NPN 2 ws br 4sw 2 bl PE +5 V...24 VD RL (-) GND NPN OVZ-...I34 OVZ-...I35 OVZ-...L443 2 GND PNP br sw bl + O VD la 2 m RL GND Namur bl br VD 3 out 4-2 m + Vs OVZ-..F.., OVZ-..Z.., OVZ-..L3.. OVZ-... nc GND Vs out ()4-2 m switch out 2 GND GND Vs Switch out R L = 2,4... kω Pressure Losses (POM plastic housing),,8,6,4,2 OVZ-2... OVZ-4... OVZ-5... OVZ mm 2 /s 32 mm 2 /s mm 2 /s mm 2 /s Q [l/min ],,8,6,4,2 8 mm 2 /s 32 mm 2 /s 2 mm 2 /s mm 2 /s Q [l/min ],,8,6,4,2 8 mm 2 /s 32 mm 2 /s 2 mm 2 /s mm 2 /s Q [l/min] Druckverlust P[bar],,8,6,4,2 8 mm 2 /s 32 mm 2 /s 2 mm 2 /s mm 2 /s Q [l/min] Pressure Losses (aluminium housing) OVZ-2... OVZ-4... OVZ-5... OVZ-3...,,,, /7-24,8,6,4,2 8 mm 2 /s 32 mm 2 /s 2 mm 2 /s mm 2 /s Q (l/min),8,6,4,2 8 mm 2 /s 32 mm 2 /s 2 mm 2 /s mm 2 /s Q (l/min),8,6,4,2 8 mm 2 /s 32 mm 2 /s 2 mm 2 /s mm 2 /s Q (l/min),8,6,4,2 8 mm 2 /s 32 mm 2 /s 2 mm 2 /s mm 2 /s Q (l/min) 3

4 Order Details (POM plastic housing) (Example: OVZ-2 G2 N I4) Rated measuring range (l/min) ) (for different viscosities) mm 2 /s mm 2 /s32 mm 2 /s 8 mm 2 /s Imp./ Model Material/ Liter 2)4) cover OVZ OVZ OVZ OVZ = POM..2.. = PMM ) Maximum pressure loss at maximum rated flow is bar 2) Hz = Imp./Liter x l/min/6 3) Please specify flow direction in writing 4) t the electronic option»frequency output«the actual pulse ratio is stated on the type label onnection Gaskets Electrical transducer..g2.. = G ¼..N2.. = ¼" NPT..G2.. = G ¼..N2.. = ¼" NPT..G4.. = G ½..N4.. = ½" NPT..G5.. = G ¾..N5.. = ¾" NPT..N.. = NR (standard)..v.. = FPM..E.. = EPDM Frequency output..i4 = Frequency output NPN, connector DIN I32 = Frequency output NPN, cable connection..i34 = Frequency output PNP, 2 m PV cable..i35 = Frequency output Namur, 2 m PV cable..f3 = Frequency output PNP,..F3X = frequency divider adjusted PNP, nalogue output..l33 = -2 m output, 3-wire, M2x connector..l343 = 4-2 m output, 3-wire, M2x connector..l443 = 4-2 m output, 3-wire, DIN connector ompact electronic 3)..3R = LED display, 2 x open collector, PNP,..3M = LED display, 2 x open collector, NPN,..34P = LED display, 4-2 m, x op. coll. PNP,..34N = LED display, 4-2 m, x op. coll. NPN, Pointer indication, 24 3)..Z3 = 24 pointer indication, -2 m, connector M2x..Z34 = 24 pointer indication, 4-2 m, connector M2x 4 /7-24

5 Order Details (aluminium housing) (Example: OVZ-2 3 G2 N I4) Rated measuring range (l/min) ) (for different viscosities) mm 2 /s mm 2 /s32 mm 2 /s 8 mm 2 /s Imp./ Model Material/ Liter 2)4) cover onnection Gaskets Electrical transducer Frequency output OVZ-2....G2.. = G ¼..N2.. = ¼" NPT..I4 = Frequency output NPN, connector DIN I32 = Frequency output NPN, cable connection..i33 = Frequency output NPN,..F3 = Frequency output PNP,..F3X = frequency divider adjusted PNP, nalogue output OVZ OVZ = PMM..4.. = PSU..5.. = lu..g2.. = G ¼..N2.. = ¼" NPT..G4.. = G ½..N4.. = ½" NPT..N.. = NR (standard)..v.. = FPM..E.. = EPDM..L33 = -2 m output, 3-wire, M2x connector..l343 = 4-2 m output, 3-wire, M2x connector..l443 = 4-2 m output, 3-wire, DIN-connector ompact electronic 3)..3R = LED display, 2 x open collector, PNP,..3M = LED display, 2 x open collector, NPN,..34P = LED display, 4-2 m, x op. coll. PNP,..34N = LED display, 4-2 m, x op. coll. NPN, OVZ-3....G5.. = G ¾..N5.. = ¾" NPT Pointer indication, 24 3)..Z3 = 24 pointer indication, -2 m, connector M2x..Z34 = 24 pointer indication, 4-2 m, connector M2x ) Maximum pressure loss at maximum rated flow is bar 2) Hz = Imp./Liter x l/min/6 3) Please specify flow direction in writing 4) t the electronic option»frequency output«the actual pulse ratio is stated on the type label Digital indicators and transducers to this oval wheel flow meter please see»accessories«. Plug-on display for model OVZ...L4... (with 4-2 m output and DIN connector) 3-digit LED, plug-connection DIN 43 65, 3-wire, power supply with analogue output Order number UF-3 /

6 s OVZ-...I4 37 F G H G H F [mm] [mm] [mm] / OVZ OVZ OVZ OVZ s OVZ-...I32, OVZ-...I F G H G H F [mm] [mm] [mm] / OVZ OVZ OVZ OVZ s OVZ-...I34, OVZ-...I35 G PNP NMUR PNP/NMUR G H [mm] [mm] [mm] [mm] [mm] [mm] H OVZ OVZ OVZ OVZ /7-24

7 s OVZ-...L3... ø 9 OVZ-...F3... s OVZ-...L443 with UF ,4 99 OVZ with frequency or analogue output: overview Plastic housing (POM) OVZ-2 = POM OVZ-2 2 = PMM OVZ-4 = POM OVZ-4 2 = PMM OVZ-5 = POM OVZ-5 2 = PMM OVZ-3 = POM OVZ-3 2 = PMM luminium housing (LU) OVZ-2 3 = PMM OVZ-2 4 = PSU OVZ-2 5 = LU OVZ-4 3 = PMM OVZ-4 4 = PSU OVZ-4 5 = LU OVZ-5 3 = PMM OVZ-5 4 = PSU OVZ-5 5 = LU OVZ-3 3 = PMM OVZ-3 4 = POM OVZ-3 5 = PMM /

8 s OVZ s OVZ-...Z3... ca. 8 5,5 Ø 44,5 66,5 OVZ with compact electronic: overview Plastic housing (POM) OVZ-2 = POM OVZ-2 2 = PMM OVZ-4 = POM OVZ-4 2 = PMM OVZ-5 = POM OVZ-5 2 = PMM OVZ-3 = POM OVZ-3 2 = PMM luminium housing (LU) OVZ-2 3 = PMM OVZ-2 4 = PSU OVZ-2 5 = LU OVZ-4 3 = PMM OVZ-4 4 = PSU OVZ-4 5 = LU OVZ-5 3 = PMM OVZ-5 4 = PSU OVZ-5 5 = LU OVZ-3 3 = PMM OVZ-3 4 = POM OVZ-3 5 = PMM /7-24