"4/20"" Differential # Switch"
The Dwyer 1910-20 Series 1900 Compact Low Differential Pressure 4/20"" Switch is a miniature switch designed specifically for use in small places. Equipped with a solid bronze quadrant lever and a heavy-duty 20"" (508 mm) long bellows, these compact switches are used on such instruments as boiler set points, gas meters, pneumatics, machine tools, and automobiles.
The Dwyer Instruments 1910 Series Low Differential Pressure Switches are rotary, normally-closed, magnetic switches designed for use with 4/20" pipelines. They are suitable for differential pressure ranges of 4.0"-20.0"WC and use a 12 VDC Piezo buzzer alarm as a fail-safe device. The AC power supply, signal output, and switch controls are located in the end plate of the Series 1900 switch.
The Series 1900 Compact Pressure Switch is a compact, low differential pressure switch featuring rugged stainless steel construction and an operating pressure range of 14 to 20 inches water column (4.0 to WC). The 4/20 switch is engineered to detect differential pressure and signal alarm or shutdown when preset limits are exceeded. This switch can be used in boilers, chillers and equipment with negative or positive pressures. Uses include boiler water level control, chimney draft indicator, liquid level indication and general process switching.
The Dwyer Series 1900 Compact Low Differential Pressure Switch combines versatility, accuracy, reliability and economy into a cost-effective package. The Series 1900s are 3-1/2 times more compact than conventional 2.0 - 20.00"WC pressure switch models.
The Dwyer Instruments 1910-20 Compact Series 1900 Low Differential Pressure Switch with Conduit, Range 4.0-20.0 ''WC '' is a commercial quality instrument that can be easily installed in confined spaces. The design of this Series 1900 Low Differential Pressure Switch with Conduit is such that it will control high water pressure without increasing the input energy consumption.
The Dwyer Series 1900 Low Differential Pressure Switches are intended for field combinations with other instruments and transmitters in pneumatic/compressed air and steam systems. The 1910 Series has a 0-10 PSI Main Differential and an optional Low Differential, which is 4 to 20 inches WC (150 mm Hg max.).
The 1900 Series Switch enhances water quality by combating cross-contamination and inactivation of sanitizers. It accurately measures pressure differences produced by pressure switches to pinpoint leaks, filter backflow or help conduct pressures tests on production processes. With high differential range from 4? WC to 20? WC, the 1900 Series Switch is a great solution