INSERTION paddle wheel flowmeter for continuous flow measurement

Transcription

1 INSERTION paddle wheel flowmeter for continuous flow measurement Economic integration in pipe systems without any additional piping 3-wire frequency pulse version to directly interface with PLC s (both PNP and NPN) Connection to Bürkert devices in remote versions Type 800 can be combined with... Type 80 Flow transmitter Type 86 Universal Controller econtrol Type 880-GD TopControl system PLC The paddle wheel flowmeter for continuous flow measurement is especially designed for use in neutral, slightly aggressive, solid free liquids. The Bürkert designed fitting system ensures simple installation of the devices into all pipes from DN0 to DN400. The flowmeter produces a frequency pulse signal, proportional to the flow rate, which can easily be transmitted and processed by a Bürkert transmitter/controller. General data Compatibility Materials Housing / Union nut Cable plug Wetted parts materials Fitting Sensor armature, paddle wheel Axis, bearing / Seal With fittings S00 (see corresponding data sheet) PE / PC PA Brass, stainless steel.4404/36l, PVC, PP, PVDF PVDF Ceramics / FKM (EPDM option) Electrical connection Cable plug EN Connection cable. mm cross section; max. 0 m length, shielded Complete device data (fitting + electronic module) Measuring range Medium temperature with fitting in PVC / PP Stainless steel, brass, PVDF Medium pressure max. Viscosity / Pollution Accuracy Teach-In Standard K-factor DN0 to DN to 0 m/s 0 to 0 C (3 to F) / 0 to 80 C (3 to 76 F) - to 80 C ( to F) PN0 (4. PSI) 300 cst. max. / max. % (Size of particles mm max.) ±% of F.S.* (at 0 m/s) ) ±(% of F.S.* +.% of Reading) ) Linearity ±% of F.S.* (at 0 m/s) ) Repeatability 0.4% of Reading ) Environment Ambient temperature Relative humidity * F.S. = Full scale (0 m/s) - to 60 C ( to 40 F) (operating and storage) 80%, without condensation ) Under reference conditions i.e. measuring fluid = water, ambient and water temperature = 0 C (68 F), applying the minimum inlet and outlet pipe straights, matched inside pipe dimensions.

2 Electrical data Operating voltage Current consumption Pulse version Pulse Low power version Output: Frequency Pulse version Pulse Low Power version Reversed polarity of DC Standards and approvals Protection class Standard and directives EMC Pressure Vibration Shock - 36 V DC (via Bürkert transmitter for Low Power version) with sensor 0 ma 0.8 ma Transistor NPN/PNP, open collector, max. 00 ma, frequency: Hz; duty cycle / Transistor NPN, open collector, max. 0 ma, frequency: Hz; duty cycle / Protected IP6 with connector plugged-in and tightened EN 6-6-, Complying with article 3 of 3 from 97/3/CE directive.* EN EN * For the 97/3/CE pressure directive, the device can only be used under following conditions (depend on max. pressure, pipe diameter and fluid). Type of fluid Fluid group,.3.a Fluid group,.3.a Fluid group,.3.b Fluid group,.3.b Conditions DN only DN 3 or DN > 3 and PN*DN DN or DN > and PN*DN 0 DN 400 Accuracy diagram Pressure / temperature chart A: Application range for complete device (fitting + flowmeter)

3 Design and principle of operation The flowmeter 800 consists of a transducer and a paddle-wheel with ceramic bearings. The ceramic rotating axis is set on the end of a PVDF INSERTION sensor armature. The transducer is mounted inside the armature. In a 3-wire system, the signal can be displayed or processed directly. The output signal is provided via cable plug according to EN When liquid flows through the pipe, the paddle-wheel is set in rotation. The non-wetted permanent magnets inserted in the paddle wheel generate a measuring signal which frequency is proportional to the flow velocity. A conversion coefficient (K-factor, available in the instruction manual of the fitting), specific to each pipe (size and material) enables the conversion of this frequency into flow rate. Two electronic module versions with frequency output are available: - with one pulse output (either NPN or PNP transistor output depending on wiring). An external power supply of - 36 V DC is required. It is designed for connection to any system with open collector NPN or PNP frequency input. - with one pulse Low Power output (NPN transistor output). An external power supply of - 36 V DC is required. Can only be connected to separate versions of flow transmitters Type 80/803. Installation The 800 flowmeter can easily be installed into any Bürkert INSERTION fitting system Type S00, by just fixing the main nut. Minimum straight upstream and downstream distances must be observed. According to the pipe s design, necessary distances can be bigger or use a flow conditioner to obtain the best accuracy. For more information, please refer to EN ISO 67-. EN ISO 67- prescribes the straight inlet and outlet distances that must be complied with when installing fittings in pipe lines in order to achieve calm flow conditions. The most important layouts that could lead to turbulence in the flow are shown below, together with the associated prescribed minimum inlet and outlet distances. These ensure calm, problem-free measurement conditions at the measurement point. Control valve DN = pipe diameter Flow direction --> x 90 elbow joint expansion x 90 elbow joint 3 dimensional 90 elbow joint or T-piece reduction The device can be installed into either horizontal or vertical pipes. Pressure and temperature ratings must be respected according to the selected fitting material. The suitable pipe size is selected using the diagram Flow/ Velocity/DN. The measuring device is not designed for gas flow measurement.

4 Diagram Flow/Velocity/DN Dimensions Example: Flow: 0 m 3 /h Ideal flow velocity:...3 m/s For these specifications, the diagram indicates a pipe size of DN40 [or DN0 for (*) mentioned fittings] Flow rate of fluid US gpm m 3 /h l/min Not recommended DN400 DN30 DN300 DN0 DN Note: DN0 DN DN00 DN80 DN6 DN0 (DN6)* DN40 (DN0)* The length of the sensor armature depends on the fitting used. See data sheet Type S DN3 (DN40)* DN (DN3)* 0 0 DN0 (DN)* * for following fitings with: external threads acc. to SMS 4 weld ends acc. to SMS 3008, BS 48/ASME BPE or DIN 80 Series Clamp acc. to SMS 307/ISO 8, BS 48/ASME BPE or DIN 3676 m/s fps Flow velocity DN [mm] H [mm] T-Fitting Saddle Plastic spigot St. St. spigot

5 Ordering chart for flowmeter Type 800 A flowmetertype 800 consists of: - a flowmeter Type an INSERTION fitting Type S00 (DN0 to DN400 - Refer to corresponding data sheet - has to be ordered separately) Description Operating voltage Output Sensor version Electrical connection Item no. Pulse version flowmeter (pluggable to Types 80 Universal transmitter, batch controller or konti-dos; 803; PLC) Pulse Low Power version flowmeter (pluggable to Types 80, 803 transmitter) - 36 V DC Frequency with pulse, PNP or NPN from associated transmitter Frequency with pulse, NPN short Cable plug EN long Cable plug EN short Cable plug EN long Cable plug EN Ordering chart for accessories (has to be ordered separately) Specifications Item no. Set with green FKM and black EPDM gasket Ring 69 0 Union nut Cable plug EN with cable gland (Type 08) Cable plug EN with NPT/ reduction without cable gland (Type 09) Interconnection possibilities with other Bürkert products Type 80 - Universal, konti-dos flow transmitter/batch controller Type Flow switch/transmitter Type 80 - Flow transmitter Type Flow switch/transmitter PLC Type Flowmeter with Hall transducer (pulse signal) Type Flowmeter with Hall Low Power transducer (pulse signal)