Ordering Information Model PK200 PK200 Current-To-Pneumatic Converter Input signal -A 4 to 20 mA DC Output signal 7 Output signal: 3 to 15 psiGauge scale: 0 to 30 psi Connections 3 Air connection: 1/4 NPT femaleElectric connection: 1/2 NPT female AUTO/MANUAL Transfer Switch /AM Mounted on front of housing, in manual mode, output signal varied by adjusting the external supply pressure regulator. Stainless Steal Screw and Bracket /SS Screw and bracket, both are made of stainless steal Explosionproof type /FF1 FM Explosion proof Approval(1)Explosionproof for Class I, Division 1, Groups B, C and D.Dust-ignitionproof for Class II/III, Division 1, Groups E, F and G.Indoors and Outdoors (NEMA 4X).Amb. Temp.:–40 to 60 C (–40 to 140 F)Electrical connection: 1/2 NPT female Applicable for Connections code 3.