Dwyer Instruments A3050 Pressure Gauge, 0 to 50 in H2O

Description

Relays are de-energized when gage pointer is to the left of respective set points; relays are energized as pointer passes to the right of set points. Series A3000 Photohelic Pressure Switch/Gage, Range 0-50" w.c.3-in-1 Indicating Gage, Lo-limit and Hi-limit Control - Photohelic Switch/Gage function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the. Dead band between make and break is 1% of full scale or less - just enough to assure positive, chatter-free operation. Single pressure 36000S models measure to 6000 psig (413 bar) with a 9000 psig (620 bar) rating. Gage reading is continuous and unaffected by switch operation, even during loss of electrical power. Easy to adjust set point indicators are controlled by knobs located on the gage face. That is, the equipment will hold in these respective positions once activated and until manually reset. Set points can be interlocked to provide variable deadband - ideal for control of fans, dampers, etc. High and Low Latching Circuits Dwyer Photohelic switch/gage can be wired for high-latching, low-latching, or combination high-low latching circuits. Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig. The Photohelic switch/gage measures and controls positive, negative or differential pressures of air and compatible gases. Individual set point deadband is one pointer width - less than 1% of full scale.

Key Features

• Set points can be interlocked to provide variable deadband - ideal for control of fans, dampers, etc.
• Loss of electrical power or loss of pressure provide "fail safe" protection. - High and Low Latching Circuits Dwyer Photohelic switch/gage can be wired for high-latching, low-latching, or combination high-low latching circuits.
• Single pressure 36000S models measure to 6000 psig (413 bar) with a 9000 psig (620 bar) rating.
• Dead band between make and break is 1% of full scale or less - just enough to assure positive, chatter-free operation. - Relay-Transformer Features A plastic housing protects all electronic components.
• The Photohelic switch/gage measures and controls positive, negative or differential pressures of air and compatible gases.
• Solid-state and integrated circuit electronics are on glass-epoxy printed circuit boards and self-extinguishing terminal boards. - Applications - Photohelic Switch/Gage In both series of pressure switch/gages, you get the convenience of a.