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The W2 option includes a mechanical analog indicator with the solid state strain gauge mounted on top sensing the differential pressure directly and providing a loop powered 4-20mA signal proportional to flow squared (r²). Requires square root extraction.
 Flow Meter Calculators Correction Factor
2 Wire Transmitter
RCM Industries, Inc.. Call Toll Free: 800-356-4243 Email: sales@flo-gage.com
Product Links "Known By The Companies we Keep Year after Year"..... Flow Meters ◇ Flow Switches ◇ Flow Transmitters ◇ Digital Display
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2-Wire Transmitters New! Flow Meter & Flow Switch 1S2 and 2S2 Option w/LEDs
Specifications: Standard Optional Accuracy: Horizontal Flow: ± 3% above 15% F.S. Vertical Flow: ± 3% above 15% F.S. Repeatability: ± 1% F.S. Pressure Max.: 180 psig (12.6 kg/cm²) 400 psig (28.1 kg/cm²) Pressure Min.: 10 psig (0.67 kg/cm²) 10 psig (0.67 kg/cm²) Temp. Max.: 212ºF (100ºC) N/A Temp. Min.: -30ºF (-34ºC) N/A Electrical Rating: Ambient Temp.: 120ºF (50ºC)  Current Output: 4-20mA into 650 ohms max. Requirement: Power Input: 100mA, 24Vdc per meter (Not Included) Protect from freezing liquid
Construction Specifications:
Housing: Super ABS Aluminum Body: Bronze Monel, 316SST Bellows: Bronze Monel, 316 SST, Inconel Seals: Buna-N Viton, EPR, Teflon Crystal: Polycarbonate Glass, Plastic Gear Movement: Brass 316 SST
Hazardous Location Classification (IS Option): CSA / NRTL: Ex ia IIC T3 Class 1, Groups A,B,C,D Class 2, Groups E,F,G LCIE / CENELEC: EEx ia IIC II 1G, Zone 0
Atex Certificate CSA Certificate Declaration of Conformity
Intrinsic Safety (Add Option IS to W2 or W3) Only
Accessories 
Table of Options:
A Viton Seals B EPR Seals B2 Teflon Seals C Calibrated for Specific Gravity D Gasketed Case (NEMA 4X, IP66) D2 Gasketed Case w / Condulet (NEMA 4X IP66) E Non-Standard Flow Rate ES Low Rate (Below 2 GPM) F Aluminum Housing w / Plastic Dial Crystal F2 Aluminum Housing w / Glass Dial Crystal G Custom Scales and Dials H High Pressure Service I Compressed Gas Service J Peak Flow Indicator P Panel Mount R2 Remote Readout, Bronze R3 Remote Readout, 316 SST V High Viscosity Service W2 4-20mA Output (Square Root) Signal -EM Electromagnetic Compatibility (89/336/EEC) -IS Intrinsic Safety (Atex Certified 94/9/EC)
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WIRE TRANSMITTER - W2
