Solutions for Fluid Technology VS + VSI GEAR FLOW METERS

VS FLOW METER SELECTION For trouble-free and safe operation of the flow meters the correct selection of type and size is decisive. Due to the great number of different applications and flow meter versions, the technical data in the VSE catalogues are of general character. Certain characteristics of the devices depend on type, size and measuring range as well as on the medium to be measured. For exact flow meter selection please contact VSE. VS FLOW METER VS positive displacement flow meters are volume rate measuring sensors based on the meshing gear principle and are designed for use with liquids....

OUTPUT SIGNALS OF PREAMPLIFIER FLOW METER VS 0.02... VS 4 Gear rotation of one tooth pitch Messwerksdrehung um eine Zahnradteilung Gear rotation of one tooth pitch 3 Impulse pro durchgesetzte Flüssigkeitsmenge (10 cm3) 3 impulses per volume (10 cm3 ) um one tooth pitch of eine Teilung Volume / impulse in cm3 / Imp Volume / impulse in cm3 / Imp (10/3 cm  =Vm) Channel offset by 1/4 of tooth pitch (90°) Channel offset eine1/4 of Kanalversatz um by tooth pitch (90°) 1/4 Teilung (90°) Tastverhältnis eines Impulses Impulse mark/space ratio (am Vorverstärker justiert) (adjust. at preamplifier) Impulse...

APPLICATIONS All liquids that can be pumped and have known lubrication properties can be measured, for example: paraffin, kerosene, benzine, diesel, Skydrol, mineral oils, hydraulic oils including fire resistant fluids, inks, dyes and paints, greases, polyurethane, polyol and isocyanates, Araldite, glues, pastes and creams, resins, waxes and many others. RANGES OF APPLICATIONS IN THE AUTOMOTIVE INDUSTRY Braking system test stands Fuel consumption measurement Polyurethane foams for steering wheels, fascia, seats etc. Paint spraying systems Steering systems Batching and filling of motor oils, brake...

THE VSI HIGH DEFINITION PREAMPLIFIER For precise and exact flow and volume measurements, it is necessary to increase the resolution as high as possible by resolving the measurement Vm, even more than with conventional preamplifiers. This individually programmed high resolution enables you to set the volume measurement Vm optimally for each provided case of application. Furthermore, new applications can be availed with the higher resolution With the VSI-preamplifier versions a selectable resolution of up to 128 flanks (32 pulses) per period can be attained (see table below). • easuring, controlling...

TECHNICAL DATA OF VSI PREAMPLIFIER Pickup sensor Number of sensors Adjustment Resolution Frequency Operating voltage 2 x MR sensor (sine and cosine signals) Two pick up sensors for generating the sine and cosine signal Offset adjustment by two potentiometers Programmable in a range of 1 – 64 flanks per volume measurement Vm Frequency multiplication: programmable in a range of 1 – 16 times the frequency of the pick-up sensors Channel A, channel B, zero channel Z Two signal outputs for emitting the digital flow sensor signals; between channel A and channel B there is a channel offset of 90° Recognition...

TECHNICAL DATA OF VSI PREAMPLIFIER – UPGRADE (HIGH PERFORMANCE) Pickup sensor Configuration Resolution Frequency Output signals Channel A and B Flow direction Error messages Operating voltage Current comsumption 2 x MR-sensor (sine and cosine signals) automatically via peripheral board programmable 1, 2, 3, 4, 5, 8, 10, 12, 16, 24, 32 up to 100kHz Channel A, channel B, direction signal „DIREC“ (high positiv; low negativ) Two signal outputs for emitting the digital flow sensor signals; between channel A and channel B there is a channel offset of 90° Recognition of flow direction from channel offset...

INTERPOLATION FACTOR AND RESOLUTION Interpolation factor Column 1: Programmable interpolation factor IPF (programming is done in the factory) Column 2: Pulses per volume measurement Vm Column 3: Maximum resolution of the signal flanks. The signal flanks channels 1 and 2 are evaluated Column 4: Volume measurement V . resulting from the maximum resolution of the signal flanks Column 5: Maximum resolution in angle degrees at resolution of signal flanks Column 6: Maximum frequency f . at maximum flow Q and programmed interpolation factor IPF max In practice the maximum flow Q of the flow meter is...

FLOW RESPONSE CURVES

FLOW RESPONSE CURVES

CAST IRON VERSION CONNECTION DRAWING View X Housing not mill cutted View X *GG = Cast Iron EN-GJS-400-15 (EN 1563) ** E = Stainless Steel 1.4305

BOTTOM PORTS Flow meter Flow meter Bottom ports* Cast iron / APG.U... /. Stainless steel / APE.U... / . 70 Stainless steel / APE.S... / . 29 Cast iron / APG.S... /. Side ports Connection drawing Flow Meter F Connection drawing Flow Meter Ringschraube M../.. for fixing the subplate Connection drawing Flow Meter ØH Connection drawing Flow Meter Die Abmessungen sind in mm angegeben * Both bottom ports (G) for size APG 4 U and APE 4 U have a displacement of 90° to the shown drawings. Abmessungen Anschlussplatte APG 10 SW0N / 1 View X Connection drawing Connection drawing Connection drawing Connection...

Special designs on request 1 Only for APG.U ... / . ; APE.U ... / . 2 Only for APE.S ... / . ; APE.U ... / .

VSE FLOW METERS IN EX-DESIGN / THE BARRIER AMPLIFIER VSE FLOW METERS IN EX-DESIGN The VSE flow meters of the VS series in Ex-design are approved for applications in potentially explosion-hazardous areas and are always operated in conjunction with barrier amplifiers. They have blue markings and offer the necessary Ex-protection security. The type plate shows the necessary description according to DIN EN 60079, the type key and the safety-related and electric data. VSE can supply the flow meters with the barrier amplifiers type MK 13-P-Ex 0/24 VDC/K15. THE BARRIER AMPLIFIER MK 13-P-EX 0 / 24 VDC...

PICK-UP SYSTEM FOR HIGH TEMPERATURE RANGES OPTION FOR STAINLESS STEEL FLOW METERS VS 0.04 … VS 4 The pick-up system consists of one or two sensor units, which are screwed into the cover of the VS flow meter and of a downstream switched amplifier. This amplifier is connected with the flow meter by means of a temperature resistant cable and has to be installed outside the high temperature area, where the ambient temperature should not exceed 50°C. Flow meter The following pictures show the respective connection of the electronic readout. Electronic readout Measuring Controlling For long cable lengths...