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Description
Technique
The Rotor blades sweep out the full bore of the meter except for a small tip clearance space . As the blade tips pass the magnetic pick up they initiate a pulse . Flow rate is determined by the frequency of the pulses and Totalised Flow is obtained by summing the pulses .
“ Fluidwell “ Totalisers , which sum the pulses automatically and display Flow Rate and Total Flow instantly on the readout , can be mounted on the Turbine or fitted remotely . Options include: linearisation, pulse/4-20 retransmit , batch control, RS comms, with various power options including 7 year Battery. (EEx ia versions available)
| GENERAL SPECIFICATIONS
Materials |
Rotor Supports : 316 Stainless Steel .
Journal Bearings : Tungsten Carbide .
Thrust Ball : 316 Stainless Steel .
Rotor : ANC1A Stainless Steel .
Rotor Shaft : Tungsten Carbide . BSP WAF
Performance
Linearity : + / – 0.5 % ( better than + / – 0.2 % when used with “Fluidwell “ Totaliser ) .
Repeatability : + / – 0.1 % .
Temperature : – 30 oC to + 120 oC ( maximum + 350 oC with optional High Temperature Pick Up ) .
Pressure Drop : 250 mbar at maximum quoted Flow rate .
Code/Style
BSP : BSPP Male Threaded . NPT : NPT Male Threaded .
FL1 : ANSI 150 Flanged . FL2 : ANSI 300 Flanged .
FL3 : BS 4504 ( DIN ) PN16 . FL4 : BS 4504 ( DIN ) PN25 .
WAF : Wafer . TRI : Tri – Clamp .
Example Options
HT : High Temperature Pick Up .
IS : Intrinsically Safe Pick Up .
2P : Second Pick Up fitted .
LFT Turbines fitted with the intrinsically safe pick up ( IS option ) are suitable for Hazardous Installations ( Eex ia IIC T4 ) .
F112 Flow Rate Totaliser unit can be fitted to the LFT turbine flow meters. These can be orientated vertically or horizontally, with the display pre-programmed to suit your own requirements. The Fluidwell displays can provide flow rate and flow totals, with 4-20mA flow rate output, and pulse output for flow total, or Serial strings for networking multiple meters back to a central monitoring point.