COVOL
12Pages

MASTERPIECES MADE IN GERMANY OVERVIEW Operation - Oscillating piston Application - Consumption measuring - Dosing and mixing - Filling of tanks and other containers - Petrochemical industry Features - Universal orientation - Bi-directional flow measurement - High accuracy - Easy cleaning - EX-version according to ATEX directive available - Flange connection in accordance with EN 1092-1 - Optional thread connecting Options: - Analog transmitter with display - Totalizer with display - Frequency divider - Electrical converter with display Installation information The operating instructions for COVOL must be observed! Download: www.meister-flow.com

OPERATING DATA Operating pressure, PN 10 (Plastic version) max. PN 16 (Stainless steel version) Pressure drop see diagram on page 6 Stainless steel version -40 °C - 150 °C Viscosity < 120000 mPas (cP) Measuring accuracy ±0,8 % of measured value Repeatability ±0,3 % of measured value (1) DN 10 / 1/4", horizontal installation only Changed operating data apply for EX-version in accordance with IATEX-Directives! The flowmeters are calibrated with water (density 1.00 kg/dm3, viscosity 1mPas). The pulse rate (pulse per liter) is then estab-The Operating Instructions for COVOL and...

MATERIALS / PARTS DESCRIPTIONVersion Item Description MaterialStainless steel version PTFE, PVC and PP version 1 2 3 4 5 6 7 8 9 10 Connector: Aluminum alloy + Polyamide Gasket: NBR Inlet / outlet chamber + connection: O-ring: Guide disk: Measuring chamber: Separator: Screws: Reed contact: EN 1.4404 (AISI 316L) NBR / PTFE / EPDM / FKM EN 1.4404 (AISI 316L) EN 1.4404 (AISI 316L) EN 1.4404 (AISI 316L) EN 1.4401 (AISI 316) PTFE + Graphite / Bronze / Aluminum PTFE / PVC / PP NBR / PTFE / EPDM / FKM PTFE / PVC / PP PTFE / PVC / PP PTFE / PVC / PP EN 1.4401 (AISI 316) Aluminum alloy +...

SUMMARY OF TYPES Flange connection in accordance to EN 1092-1, Stainless steel version Type Overall dimensions [mm] DN 100 on request (special version) Flange connection in accordance to EN 1092-1, PTFE-, PVC- and PP version Type Overall dimensions [mm]

Type Overall dimensions [mm] DN R (2) C e/c L A H COVOL 10 1/4" 36 32 90 100 110 COVOL 80 3" 125 115 200 250 190 (2) Other sizes on request Hygienic process connections on request!

DIAGRAMS Diagram 1: Pressure drop for water is dependant on the flow DN10H DN10 Pressure drop ΔP (mH2O) from diagram1 Diagram 2: Additional pressure drop (mmH2O) is dependent on the kinematic viscosity (cSt) Additional pressure drop ΔP (mmH2O)

FUNCTIONAL PRINCIPLE Position 1 The liquid flows into the inside of the ring piston and starts the rotation. Position 2 The liquid starts to fill the cavity between metering chamber and the outside of the piston and continues to fill the inside of the piston. Position 3 The piston is completely filled. The liquid continues to fill the outside cavity and keeps the piston in motion. During further filling of the cavity, the inside of the piston will be discharged through the outlet. A new cycle begins as the liquid flows into the inside of the ring piston.

Analog transmitter with display and counter 2-wire system (loop powered) 3 housing versions Housing versions CP420L Compact design aluminum base with UV-resistant polycarbonate cover IP 65 CP420R Separate version Power supply Power consumption Output Totalizer (volume) Flow rate display Pulse rate Ambient temperature Separate version for panel mounting, front IP 50, rear IP 30 8...36 V DC < 20 mA 4 - 20 mA 7 digit display, height 8 mm, reset via keyboard, several measuring units selectable 5 digit, heigth 5 mm, programmable measuring range limits several measuring units...

CIP CIP II Battery powered totalizer with display CIP Resettable totalizer (total volume) COVOL + CIP / CIP II / CP420L (total volume) + resettable partial volume totalizer Housing Aluminum base with UV-resistant polycarbonate cover IP 65 Compact design Power supply 3 V DC Button cell battery 24,5 x 5,0 mm Power consumption 8 |jA Battery life approx. 5 years Totalizer (total volume) 7 digit display, height 8 mm, reset (not with CIP II) via push-button or external magnet Totalizer (partial volume) only with CIP II, 5 digit, height 5 mm reset via push-button or external...

ATEX VERSION The COVOL flowmeter is suitable for installation in hazardous areas according to ATEX Directive, i.e. in areas where an explosive atmosphere can be created. There are two types of protection available: Exi (intrinsic safe) Exd (pressure proof encapsulation) Ignition protection type Exd These devices comply with Directive 94/9 / EC (Equipment and protective systems intended for use in potentially explosive atmospheres), as indicated in the certificate LOM 14ATEX and in the associated identification marking and labeling. Ignition protection type Exia The device belongs to Group...

COVOL COVOL COVOL COVOL COVOL Exd-housing not available for DN 10 DN 100 on request

MASTERPIECES MADE IN GERMANY Meister Strömungstechnik GmbH • Im Gewerbegebiet 2 • 63831 Wiesen / Germany Tel. +49 (0) 6096 9720-0 • Fax +49 (0) 6096 9720-30 • sales@meister-flow.com • www.meister-flow.com The general business terms of Meister Strömungstechnik GmbH are valid • All righ