LPS FLOW SWITCH SERIES Industrial Flow Switch The Metri Flow Switch Series has been designed to deliver a simple, robust and reliable adjustable flow switch that provides visual and electrical alarm signals when the flow rate rises and falls past a set point. Compact Fast response visual alarm High turndown ratio up to 30:1 Wide temperature range from -40 up to 350°C The LPS Flow Switch module accepts signals from a range of Metri Measurements products including the LPM Paddlewheel and LTM Turbine flow meters. This provides users with a wide turndown ratio from 10:1 (eg. 15-150 l/min) up to 30:1. The enclosure can be mounted either local to or remotely from the flow meter, providing flexibility particularly where used in hard to reach areas. Rugged Compact or Remote SPECIFICATION deta ils Nominal size Process connection BSPP (parallel) & BSPT (taper) female threaded, DIN & ANSI flanged; other on request eg PNXX, ti-clamp, NPT, RJT Flange rating Solids free and partially contaminated liquids including water, chemicals, hydrocarbons, mineral oils, alcohols Flow range 05.5 to 1200 l/min, various range (other ranges available when using alternative flow sensors) Operatering temperature Standard: Medium: High: All threaded bodies: up to 100 bar (higher pressure optional) Flanged bodies: depends on flange rating and operating temperature range Higher pressure rating on request Frequency range Pressure drop Varies with size, typically less than 125 mbar at maximum flow rate (standard ranges without flow restrictor) Rotor: Rotor shaft: Bearings: O-ring: 304 stainless steel (standard); 316 (optional); other optional aluminium hard anodised, other materials available on request 431 stainless steel Tungsten carbide; other materials on request Tungsten carbide and jewel bearings (standard & medium temperature); stainless steel ball race (high temperature) Buna N (standard); Viton (optional) Switch specification Nominal 24 Volts DC externally fused at 50mA Minimum 8 Volts DC - Max 30 VDC Load current: 12mA in Alarm - 8.6mA non Alarm state IMPORTANT: The flow meter connections MUST have galvanic isolation from the supply Frequency range: 30 - 3Khz Relay - SPDT: voltage free contact or internal link to 24VDC Maximum Voltage: 175 Volts Maximum current: 250mA (note if used with 24V supply it must be limited to the fuse rating of 50mA) 2 x LED display function and alarm status Horizontal or vertical flow rising, full pipe only IC-LPS Technical Factsheet 2016/1

VERSATILE CONFIGURATIONS Ordering information for the LPS Flow Switch Nominal size, flow range (based on H20 at 20°C) IC-LPS flanged with IC-MV-PO/AN output board IC-LPS flanged remote Other sizes and flow rates on request BSPP (parallel) female BSPT (taper) female IC-LPS screwed with IC-MV-PO/AN output board IC-LPS screwed for remote switch Contact us for dimensions of display fitting. Other on request (eg. PNXX, tri-clamp, NPT, RJT etc) Nominal Size * approximate weight General purpose Other Metri products SPDT Relay volt Free Compact (locally mounted on flow sensor, excl. high temp version)...