Volume flow rate sensors

Transcription

1 Volume flow rate sensors Kalibrierdienst K DIN EN 00 DIN EN ISO Test with confidence Messen mit System English

2 Hydrotechnik gear flow meters type GFM Gear flow meters are used for the precise measuring of the volume flow rate as well as for the accurate volume counting Measuring of the volume flow rate For the measuring of the volume flow rate, pulses are evaluated as a volume per time in any flow unit whatever, e.g. l/min. Counting of the volume (quantity) For the counting of the volume, individual pulses per gear tooth volume are added up in the instrument and are shown in freely selectable volume units. Advantages at a glance high accuracy and repeatability operational pressure up to 0 bar fitting in any position and measuring in both flow directions possible large measuring range up to :00 application for a large viscosity range test points for pressure and temperature suitable for hydraulic- and other oils on mineral oil basis, diesel oil, fats, glue, resins, waxes, pastes, polyurethane etc. option: detection of flow direction and pulse doubling Short description of measuring principle A ball bearing pair of gear wheels is moved by the streaming fluid. The fluid is transported in the cavities between each gear tooth and the housing. This measuring system works accordingly to the positive displacement principle. Due to this, the measuring accuracy is largely independent of the fluid viscosity. The rotation of the gear wheels is detected by a non-contacting magnetoresistor sensor. Each tooth cuts through a small magnetic field and produces a square wave electrical output. The connected HYDROTECHNIK measuring instruments display the volume flow rate in any flow unit whatever (e.g. l/min.). As an option it is possible to realize a doubling of the pulses, when installing an additional magnetoresistor sensor into the gear flow meter. In doing so, a better resolution is achieved and modifications of the direction are detected exactly. Technical data Material: (Standard type) Viscosity range: Standard viscosity range: Allowed temp. operat. material: Hydraulic connection: Measuring ranges: Allowed operational pressure: Non-linearities: Reproducibility: Measuring signal output: Top of housing XCrNiS 88 (.0) Middle piece and bottom piece GGG0 (0.700), sealings Viton Gear wheels Mn Cr (.7) or special material to mm /s (cst) 0 to 00 mm /s (cst), calibration value and geometric tooth volume are stamped onto the label of the gear flow meter -0 C to +0 C ( F) ambient temperature max. 80 C (7 F) see table see table see table see table < 0, % of the measuring value Magnetoresistor sensor with integrated amplifier, voltage supply +8 V to +0 V (direct voltage), plug -poles, Amphenol-Tuchel

3 Technique in detail The measuring system of the sensor in manufactured with a high precision and very small tolerances. From this, a high measuring accuracy, an excellent reliability and a long lifetime are resulting. Connections magnetoresistor sensor Magnetoresistor sensor 0k : + Signal : - Signal / -U b / GND : + U b /+8 to +0 VDC : free/nc : free/nc Signal amplitude (square wave) = power supply minus app. Volt Test point for pressure and temperature (p/t-measuring test point) Test point for pressure p (bar) 0 mm /s (cst) 8 p (bar) 00 mm /s (cst) mm /s (cst) 0 0, Q (l/min) Typical pressure drop curves Q (l/min) Picture Q=0,00 to l/min Picture Q= to 00 l/min p (bar) 0 mm /s (cst) 9 8 p (bar) 00 mm /s (cst) 9 8 p (bar) 00 mm /s (cst) 7 0 mm /s (cst) 7 0 mm /s (cst) 0 mm /s (cst) 0 Q (l/min) Q (l/min) Q (l/min) Picture Q=0,0 to l/min Picture Q=0, to 0 l/min Picture Q=0,7 to 70 l/min Measuring range in l/min Non-linearities at standard viscosity 0 to 00 mm /s Vgz geometric tooth volume app. cm Pulses per app. dm Hydraulic connection ISO- 8 Tube Type Housing Ø in mm Height in mm Weight in kg *thread boring (depth) 0,00 to 0,0 to 0, to 0 0,7 to 70,0 to 00 Other measuring ranges on request 0,00 to 0,0 l/min ± % from meas. value 0,0 to l/min 0,0 000 G / S8 (S) For screwin pipe connection with BSP. thread acc. to DIN 8 8 app. 8 M8 0,9 0 G / S8 app.,7 ( mm) M8 0, 0 G /8 S 0 app., ( mm) M, 0 G / S0 app. 8, (8 mm) M 0,0 00 SAE-flange connection / 0 app. 90 ( mm) *Planned mechanical fastenings: thread borings on bottom side, M (9 mm)

4 Order data Standard type GFM The standard Gear Flow Meter is delivered with the following features: Work s calibration for mineral oil at 0 to 00 mm /s (cst): if no other viscosity is indicated. Equipped with one MINIMESS-screw test point, one p/t-test point of series 0 and one standard magnetoresistor sensor (part-number: ). Additions to the standard type can be seen below, in the order key for special types. Measuring range p max Hydraulic connection Part-number 0,00 to l/min (0, , US gal/min) 0,0 to l/min (0,0..., US gal/min) 0, to 0 l/min (0, US gal/min) 00 bar (800 psi) 0 bar (9000 psi) 0 bar*) (00 psi)*) 0 bar (9000 psi) ISO 8-G /, S8(S) ISO 8-G /, S8 ISO 8-G /8, S ,7 to 70 l/min (0,8... 8, US gal/min) 00 bar ISO 8-G /, S ,0 to 00 l/min (800 psi) (0, , US gal/min) SAE-flange / *) Housing material: ALCuMgPb F7 Order key for special types Special calibration on request (add requested viscosity to the complete part-number).99 Design with two magnetoresistor sensors (detection of direction): EX-type with Zener-barriers: Design with f/dc-converter (output signal corresponds to the volume flow rate measuring range to 0 ma) 78 8 GFM without test points GFM equipped with MINIMESS-test point and p/t-test point for further screw series: MINIMESS MINIMESS 00 Gear flow meter type GFM made from stainless steel.7 (p max 0 bar / 00 psi) Measuring range 0,00 to l/min (0, , US gal/min) Measuring range 0,0 to l/min (0,0..., US gal/min) Measuring range 0, to 0 l/min (0, US gal/min) (on request) (equipped with MINIMESS-test point and p/t-test point, series 0) Accessories Measuring cable MK 0 (standard length, m for all gear flow meters type GFM) Magnetoresistor sensor (single ones are available for replacement) Technical details are subject to change without notice. HYDROTECHNIK evaluation instruments which can be connected: - Hand held measuring instruments: Series 000, 00/00, and 00/0 - Panel mounted instruments: Typ "SEG 000 and Compare" for volume flow rate - Measuring data acquisiton systems: Group 8000, HY-MoCom 000

5 HYDROTECHNIK-RE-series flow measuring turbines Flow measuring turbines are used in many fields to acquire instantaneous flow rates from dynamic fluid systems. RE with external metric thread connections for solder-free screw-in pipe connection according to DIN RE with internal BSP threaded connections according to DIN ISO 8 Advantages at a glance Ideally suited for use with mineral oil and HFA-/HFC-liquids, skydrol, water etc. Integrated test points for acquiring pressure and temperature measurements Small physical dimensions, high pressure capability Installation in any position, reverse flow operation Low operational noise, high level of reproducibility Improved accuracy through linearization feature with the corresponding evaluative instrumentation from within our product range Measuring range expandable through linearization feature The measuring principle in brief The flow measuring turbine is a flow rate meter. The turbine blade wheel is axially driven by the flow stream, rotating in proportion to the mean flow velocity. A non-contacting inductive pick-up generates a pulse each time its' electro magnetic field is interrupted by the rotating blades of the turbine. These pulses are then directly conver-ted into a flow measurement by the associated electronic instrumentation, in for example l/min. An advantage of the RE flow meas-uring turbine are the integrated test points which enable additional measurements of pressure and temperature. Common technical data for RE and RE Materials: Viscosity range: Allowed temperature of operating material: Signal connection: Housing AIZnMgCu,, surface protection by anodic oxidation. With HFA- and HFC-liquids the surface protection is achieved by a special anodic oxidation process. to 70 mm /s (cst), > 0 mm /s = restriction of measuring range (for RE -0, max. viscosity 0 mm /s) Max. +0 C (8 F) Inductive transducer with amplifier, signal output square wave Error limits referring to the calibration viscosity for the following types: RE - 0 RE - 7 / RE - 7 RE - 00 / RE - 00 RE - 00 / RE - 00,0 to 0 l/min 7, to 7 l/min ±,% of the actual value to 00 l/min to 00 l/min ±,0% of the actual value Higher accuracies and downward expansion of the lower flow measuring range can be achieved by linearization with different HYDROTECHNIK-evaluation instruments: RE - 0 RE - 7 / RE - 7 RE - 00 / RE - 00 RE - 00 / RE - 00 to 0 l/min to 7 l/min 9 to 00 l/min to 00 l/min ±,0% of the actual value ± 0,% of the actual value

6 Principal features of the flow measuring turbine (RE model depicted) Test point for pressure Inductive transducer with amplifier Test point for pressure and temperature (p/t-measuring coupling) External thread connection Electrical connections 0k +signal -signal / -U b / GND +U b /+, to + VDC free/nc free/nc Typical pressure drop curves at 0 mm /s (cst) Inductive transducer with amplifier Signal amplitude (square wave) = power supply minus app. Volt p (bar) 7 p (bar) p (bar) Q (l/min) Q (l/min) Q (l/min) Fig. RE -7/RE -7 Fig. RE -00/RE -00 Fig. RE -00/RE -00 Additional features Analog signals in 0 to 0 / to 0 ma for PC, PLC or other instrumentation For convenient adaptation to different evaluative instruments, measuring turbines with calibrated frequency/current-converters are available, which give standard constant current output signals proportionate to the flow measuring range. Volume flow rate measurement under load operation At pump inspections like records of pump curves in dependency of pressure, we recommend our loading valve with integrated measuring turbines as a useful testing device. Loading valve with two handles: Measuring range: to 00 l/min Error limit: ±, % of the actual value at 0 cst (mm s - ) Viscosity range: to 00 cst (mm s - ) Operating pressure: max. 0 bar Operating temperature: -0 C to +80 C (short term to 00 C) Connections: ISO 8-G / (Inlet / Outlet) Dimensions: 0 x x approx. 08 mm (LxWxH) Media application: Suitable for hydraulic- and other oils on mineral oil basis. VB-7-.00A HYDROTECHNIK evaluation instruments which can be connected: - Hand held measuring instruments: - Panel mounted instruments: - Measuring data acquisiton systems: Series 00, 000, 00/00, 00. For the 00/0 please use GB-7-.00A. Typ "SEG 000 and Compare" for volume flow rate Group 8000, HY-MoCom 000

7 Order data The standard turbine is delivered with the following features: Works' calibration for mineral oil at 0 mm /s (0 cst), if no other viscosity is indicated. Equipped with one MINIMESS screw coupling, one p/t-measuring coupling of series 0 and one inductive transducer with amplifier (part-no.: ). Additions to the standard type (see special order key below). Standard type RE Measuring range Thread p installation max length L Part-number G L With integrated connection group for solderless screwin pipe connection according to DIN G 7, to 7 l/min (... 0,0 US gal/min) to 00 l/min (... 79,0 US gal/min) to 00 l/min (,... 8, US gal/min) S/M x, S/M x, S0/M 0x S0/M x 00 bar (800 psi) mm mm 8 mm 9 mm V V V V Standard type RE to 0 l/min (0,..., US gal/min) ISO 8-G / 0 mm V G G 7, to 7 l/min (... 0,0 US gal/min) to 00 l/min (... 79,0 US gal/min) ISO 8-G / ISO 8-G 00 bar (800 psi) 9 mm 9 mm V V L With integrated internal threads according to DIN ISO 8 to 00 l/min (,... 8, US gal/min) ISO 8-G / 0 bar (000 psi) 7 mm V Special order key Other viscosity on request (add requested viscosity to the complete part-no.).79 Measuring medium: HFA/HFC-liquids 9 brake fluids Measuring turbines for other media on request Skydrol A Turbine equipped with: Inductive probe IG 0 to 0 C ( F) f/i-converter, 0 to 0 ma f/i-converter, to 0 ma H F G Turbine equipped with MINIMESS screw coupling and p/t-measurement coupling from alternative screw series: MINIMESS MINIMESS Accessories Measuring cable MK 0 (standard length, m for all measuring turbines of series RE) Inductive transducer (single available for replacement) Special design RE for clear water Housing material: ALZnMgCu. Surface protection: hard coated Equipped with one MINIMESS screw coupling, one p/t-measuring coupling of series 0 and one inductive transducer with amplifier (part-no.: ). Works' calibration: mm /s (cst) Measuring range Thread p installation max length L 7, to 7 l/min (... 0,0 US gal/min) to 00 l/min (... 79,0 US gal/min) to 00 l/min (,... 8, US gal/min) ISO 8-G / ISO 8-G / ISO 8-G / 00 bar (800 psi) 0 bar (000 psi) 0 mm 7 mm 78 mm Part-number 9V V V Other fluids on request. Technical details are subject to change without notice. 7

8 Hydrotechnik oval gear meters type ORM are used for the precise measuring of the volume flow rate as well as for the accurate volume counting in the sector of the modern measuring technique: foodstuff industry, lacquer and varnish factory, car industry, chemistry, paper mill, plastic processing etc. Measuring of the volume flow rate For the measuring of the volume flow rate, pulses are evaluated as a volume per time in any flow unit whatever, e.g. l/min. Counting of the volume (quantity) In the case of a counting of the volume, a defined chamber volume will be registrated. Measuring display The measured value of the series ORM 0 to ORM 0 shall be indicated via mechanical display (only quantity measurement) or LCD-display. As well as that you have the possibility to evaluate the signals of the hall effect sensor externally. The series ORM and ORM are equipped with a hall effect sensor for external evaluation. Advantages at a glance high accuracy and repeatability (also at the reverse flow operation) installation position with PPS-rotors is free selectable and a bidirectional flow is possible large measuring range up to :00 application for a large viscosity range ( cp) high compatibility of media by different rotors, sealingand housing material low pressure drop, therefore low dissipation (< bar) Use: hydraulic oils, diesel oil, water, polyrethane, glue, waxes, pastes, resins, food, flow fat, color and varnish, etc. large and favourable customer service (the components shall be changed on mounted housing) Technical data Material: Standard viscosity range: rotors in plastic PPS (Polyphenylene-Sulfide-Resins) for ORM to ORM 0 housing material in plastic PPS for ORM, ORM and ORM 7 housing and rotors in stainless steel.0 () for all types except ORM and ORM 7 housing in aluminium ALSi7Mg for ORM, ORM 0, ORM 0 and ORM 0 sealing material alternatively Viton (FKM), Teflon and EPDM to 000 cp (pressure drop < bar) above 000 cp (with special gear flow meter for high viscosity applications) calibration value and geometric chamber volume are indicated on the calibration report 80 C or rather 0 C (depends of the material and the hall effect sensor) 8 Measuring range: Reproduceability: Measuring signal output: see table < 0,0% of the measured value hall effect sensor with intergrated amplifier, voltage supply:,v to V (direct voltage), signal output: square wave (TTL level)

9 Short description of the measuring principle The measuring chamber of the sensor is an one part construction and contains no clearance volume. From this, a high measuring accuracy, an excellent reliability and a long lifetime are resulting. The medium set in motion the two rotors (accordingly to the positive displacement principle) and the fluid is divided in defined voluminas, which are transported between the rotors and the housing. The rotors are equipped with magnets, whose magnetic field is detected by a non contacting reed switch or hall effect sensor. On this occasion the resulted magnetic impulse is electronically evaluated, while the HYDROTECHNIK-measuring instruments indicate the volume flow rate in flow units (e.g. liter). Cut a way picture Schematic presentation Typ Measuring range in l/min Nonlinearity Impulse per Liter Max. particle size in mm Fitting lenght in mm / Weight in Kg Max. pressure / and temperature ORM above cp 0,0 to,7 below cp 0,0 to,7 ± % from meas. value 000 0,07 mm / 0, to 0, Housing: PPS Rotors and axles: Stainless steel:.0 () bar / 80 C ORM above cp 0, to 8 below cp 0, to 8 ± % from meas. value 00 0,07 mm / 0, to 0, Housing, rotors and axles: Stainless steel:.0 () with high-temperature hall effect sensor 0 bar / 0 C ORM above cp to 0 below cp to 0,8 08 mm/,0 to,7 Housing: AL or SS. With standard PPS-rotors / 80 C. With HT-PPS-rotors and HT-hall effect sensors 0 C. Maximum pressure load: bar. above cp to 80 ORM 7 below cp 8 to 70 0,8 08 mm / 0,9 to,0 Housing and rotors: PPS With standard PPS-rotors / 80 C. With HT-PPS-rotors and HT-hall effect sensors 0 C. Maximum pressure load: 0 bar. ORM 0 ORM 0 above cp to 0 below cp 0 to 00 above cp 0 to 0 below cp to ± % from meas. value with mech. display ± % from meas. value with mech. display, 0,8 0,8 mm /,8 to,9 0 mm /, to 9, Housing in aluminium ALSi7Mg or stainless steel.0 () With standard PPS-rotors / 80 C With stainless steel rotors or hightemperature-pps-rotors and hall effect sensors as high-temperature model / 0 C. Maximum pressure load: bar. ORM 0 above cp to 0 below cp 0 to 00 Other connection threads on request ± % from meas. value with mech. display,7 0, 0 mm / 7, to HT= high temperature 9

10 Order data Standard type ORM, ORM and ORM 7 Housing material: PPS Rotor material: ORM und ORM : stainless steel.0 (), ORM 7: PPS Sealing material: Viton (FKM) ORM and ORM : equipped with a hall effect sensor, ORM 7: hall effect sensor and reed switch Type Measuring range in l/min p max Hydraulic connection Part-number Order key for special types ORM ORM ORM 7 above cp / 0,0 to,7 below cp / 0,0 to,7 above cp / 0, to 8 below cp / 0, to 8 above cp / to 80 below cp / 8 to 70 Housing in stainless steel material.0 (), p max : 0 bar, only for ORM and ORM /" BSP (F) Hydraulic connection: ORM and ORM in /" NPT (F), ORM 7 in " NPT (F), Calibration in US gal. Only for ORM 7 (mounted on top of the flowmeter) Standard model: with LCD-display and hall effect sensor, output signal TTL-level De Luxe model: with LCD-display, EX-version: EEx ia IIC T for zone 0 and zone 0 (PTB Nr. EX-9C0X) and hall effect sensor, output signal TTL-level Sealing materials: EPDM Teflon bar 0 bar " BSP (F) FP S-- V.00 F P S-- V.00 F P P-- V.00 S 7 E T Standard type ORM, 0, 0 and 0 Housing material: Aluminium ALSi7Mg Rotor material: PPS Sealing material: Viton (FKM) equipped with a hall effect sensor and reed switch Type Measuring range in l/min p max. p max. for mechanical display Hydraulic connection Part-number above cp / to 0 ORM /" BSP (F) F A P- - V.00 below cp / to bar bar above cp / to 0 ORM 0 " BSP (F) F A P- - V.00 below cp / 0 to 00 ORM 0 ORM 0 above cp / 0 to 0 below cp / to above cp / to 0 below cp / 0 to 00 8 bar " / BSP (F) 0 mm DIN flange* F7 A P- - V.00 F8 A P- - V.00 Order key for special types Housing in stainless steel, material.0 () Rotors in stainless steel, material.0 () - not available for ORM Standard model: with LCD-display and hall effect sensor, output signal TTL-level De Luxe model: with LCD-display, EX-version: EEx ia IIC T for zone 0 and zone 0 (PTB Nr. EX-9C0X) and hall effect sensor, output signal TTL-level Mechanical display: counting of volume (quantity) Rotors for high temperature in PPS up to 0 C Rotors for viscosity above 000 cp Hydraulic connection: NPT (F) for type ORM in /", type ORM 0 in ", Typ ORM 0 in /", Calibration in US-gal. ANSI 0 lb flange only for ORM 0*, Calibration in US gal. S S sealing material: EPDM Teflon * Counter flange on request E T

11 ORM-series and high viscosity rotor pressure drop curves Bar. Bar %. 0. da Stan rd - a % H. V. 0% H. V 0. n St a % da r d- % % 0 0. V. - St 0. H H. 0..V.- nd ar % d- 0. V. H. % Viscosity Centipose Flow rate % of Maximum H.V. = rotors for high viscosity cp = cst. ( mm/sec.) x density ( g/cm ) Product Line Test with confidence Messen mit System MINIMESS Test points MINIMESS hoses with small nominal diameters DN and DN ISDS Max. Chn. Chn. Rel. Input Prog. Peak Channel PC/Printer Multi Control 8000 compare digital Min. Max. Chn. Chn. Power Rel. Rel. Prog./Displ. Prog. Peak Channel compare analog Scale SET ON/SP max. OFF/Hy. min. Analog ALARM CAL!" ( Multi System! SEG 000 Memorycard "!# $ # %% %& ' (!# %) *$!# +! ) ' 8000 # $%&' Scale SET ON/SP max. CAL [sec] p 0/00 MINMAX +p SEG 000 sec Q: l/min p: bar N: U/min p: bar &' &' /0(,0 &'! % -0/00 Spot &'"!" Min. * (+ Max. Chn. # $%&' ( " #$ &()& /0-* zur ck Power Grafikdarstellung 0 T Multi System 00 SET 0/00 <SKAL> OFF/Hy. min. Analog ALARM % % " % % Software HYDROcomsys Multi System 00 SET Multi Handy 00 Interface * 7 8(,9 * 7 8(,9 *" 7 8(,9 7): ; 9 Sensors for pressure, temperature and RPM Rel. Prog./Displ. rd Memoryca Intelligent Sensor Detection System Min. Mounting technology for tubes, cables and sensors Chn. Rel. Rel. *,-. Prog./Displ. Prog. Peak Channel compare digital Test with confidence Test with confidence Messen mit System Messen mit System Hand held measuring instruments with different features Panel mounted instrument for monitoring measuring, and controlling purposes Data acquisition Series 8000 for recording, PC-evaluation, storage and grafic display of measured data The state-of-the-art link between our measuring devices and PC

12 Test with confidence Messen mit System HYDROTECHNIK GmbH Holzheimer Straße 9-9 D-9 Tel. ++9 (0)/00-0 Fax 08 Internet: /