Glass tube flowmeters Series 6000 Variable area flowmeter for liquids and gases       Easy installation Local indication by means of direct reading Low pressure drop Scales directly in l/h, m3/h, kg/h, l/min, %, etc. Plastic protection against accidental breakage of the glass tube Flow rate: - Water: 2.5 l/h ... 50 m3/h - Air: 45 Nl/h ... 1500 Nm3/h Accuracy: 1.6% (qG=50%) Connections: - BSP or NPT threaded connections: ½” ... 3” - EN 1092-1 or ANSI flanges: DN15 ... DN80 Other flange standards on request - Sanitary couplings according to ISO 2852, SMS 1145, DIN 11851, TRI-CLAMP® Materials: - Measuring tube: borosilicate glass - Frame: galvanized and coated steel, EN 1.4301 (AISI 304) - Protection shield: metacrylate - Wetted parts: galvanized and coated steel, EN 1.4404 (AISI 316L), PVC, PP, PTFE, PVDF - Float: EN 1.4404 (SS 316L), PVC, PP, PTFE, PVDF Local indication Options: - 1 or 2 limit switches - Electronic transmitter with 4-20 mA analog output for safe or hazardous area (Ex ia IIC T6 protection, ATEX certified). HART, FIE

 6000-PVC wetted parts in PVC. Other components in Working principle The 6000 series flowmeters work according to variable area principle, which is obtained by a float that moves inside a borosilicate glass tapered tube. The fluid flows up through the tapered tube forcing the float to a position with sufficient free area to enable the flow to pass, where there is an equilibrium of forces: - E = force of the fluid flow galvanized and coated steel wetted parts in PP. Other components in galvanized and coated steel  6000-PTFE wetted parts in PTFE. Other components in galvanized and coated steel...

Glass tube flowmeters Series 6000 Materials Flowmeters with guided float Frame gasket Measuring tube Springs / Stops Connector gasket Borosilicate glass AISI 316L / Aluminium / PVDF-Pb / PVC-Pb / Flange seat Centering ring In all cases, galvanized and coated steel - Other gasket materials on request: VITON®, EPDM * Only the most usual are shown. Float material might change depending on application requirements. ** For low flows.

Models 6001 (BSP / NPT) - 6009 (socket / welding)

Glass tube flowmeters Series 6000 Flow ranges Flow scales Flow scales Aluminium float 2.85 g/cm³ Glass float 2.60 g/cm³

Flow rate equivalent curves water-liquids (with different density and viscosity) Flow rate Flow rate Change in viscosity (graph 1) Change in density (graph 2) Viscosity (mPa·s) for density 1 kg/l Nº 1. Changes in density (graph 2) If the point lies between two curves, it is optional to select: Required flow rate 1000 I/h, density 1.4 kg/I. Enter the graph at the 1000 I/h point. Move horizontally across to applicable flow tube line (C313-1000), travel the inclined line to the point of the density of the fluid (1.4 kg/I). Travel horizontally to the vertical axis and read the equivalent flow scale...

Glass tube flowmeters Series 6000 Limit switches Adjustable limit switch PT-AMR Adjustable limit switch 60-AMM (Flow rate from 10-100 l/h water and equivalent air ranges. AISI 304 frame is required for flow ranges 10-100, 16-160 and 25-250 l/h water and equivalent air ranges) (Flow rate from 40-400 l/h water and equivalent air ranges) Bi-stable SPST reed switch, actuated by a magnet inside the float and mounted in a PVC enclosure.  60-AMM1 … 2: 1 … 2 adjustable limit switches  PT-AMR1 ... 2: 1 ... 2 adjustable limit switches  Contact rating: 0.5 A / 250 V / 12 VA  Hysteresis: ±5% of full...

Adjustable limit switch 60-AMO (Flow rate up to 25-250 l/h water and equivalent air ranges) Infrared optical switch, actuated by the float when crossing the beam, mounted in a plastic enclosure and supplied together with control relay in an aluminium housing. Suitable for all float materials except glass.  60-AMO1 ... 2: 1 ... 2 adjustable limit switches  Contact rating: 1A 220 VAC / 50Hz  Hysteresis: ±5% of full scale value  Ambient temperature: -10ºC ... +80ºC  Power supply: 220 VAC / 50Hz or 24 VDC - 8 ... 35 VDC, safe area version (Flow rate from 40-400 l/h water equivalent air...