Description Specifications Description Barksdale's 440 Series Intrinsically Safe Transducers provide high accuracy pressure measurement when operating in Class I, Division I environments. Intrinsically safe transducers prevent personal injury and machinery damage by preventing the explosion in the first place. External zener barriers are required in order to meet UL requirements for an intrinsically safe installation. The higher cost of having to install a zener barrier is offset with the comfort of knowing that an explosion will not occur within normal operating conditions. Three models are available: Series 443 (0-5V), Series 445 (4-20mA) and Series 446 (0-10V).Features:High accuracyProtection in hazardous environments, Class I, Div 1Rugged all-welded stainless steel constructionSuperior EMI, ESD and RFI protectionNEMA 4Built-in high pressure snubber (2000 PSI and above)cULus, CE approvedATEX / IECEx certifiedApplications:Oil & gas pipelinesOil patchPetrochemical plantsRefineriesPulp and paper millsCoal and oil fired power plantsCement plantsGas transfers for fuel systemsGas panelsGas mixing systems State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Product Specifications General SpecificationsAccuracy:±0.25% FSO at 75°F typical; ±0.5% for vacuum onlyElectrical Connection:Shielded & jacketed #22 AWB cable (1 meter)Pressure Connection:1/4-18 NPT maleInput:12 to 28 VDCOutput:4 - 20 mA analog outputSwitchPressure Range:0 - 300 PSI (0 - 20.7 bar)Wetted Parts:17-4 PH (fitting) & 300 stainless steel (sensor)Enclosure:NEMA 4, 300 series stainless steel Literature & Docs Accessories