Dwyer Pressure Switch Adjustment

The series adps adjustable differential pressure switch is designed for pressure vacuum and differential pressures.

Dwyer pressure switch adjustment.

The starting and stopping of a well water pump is typically controlled by a pressure switch similar to the one shown below. The dual scaled adjustment knob in inches water column and pascals allows changes to the switching pressure to be made without a pressure gage. Here we are discussing setting the water pressures at which a water pump will turn on to get more water and off to stop pumping water from the water source into the water tank. A 20 psi differential is standard and recommended.

Applications include natural manufactured or lp gas. The adps is available with settings from 0 08 wc 20 pa up to 20 wc 5000 pa. The cut on pressure is the low pressure that starts the pump and the cut off pressure is the high pressure that turns off the pump. The switch is preset with both the cut on and cut off pressure.

Ul and csa listed fm approved for general service these. If the cut on cut off is 40 60 psi is what the factory setting is on the pressure switch. 1900 series pressure switch. 1910 00 switch pdf manual download.

Clear easy to read and convenient external setpoint adjustment. The dual scaled adjustment knob in inches water column and pascals allows changes to the switching pressure to be made without a pressure gage. Series 1630 large diaphragm pressure switches visual set point adjustment in 5 standard ranges 0 05 to 12 w c. The edps is available with settings from 0 08 w c.

External adjustment visible dial hermetically sealed snap or mercury switch gas pressure differential pressure switch is used with air and other compatible gases. Designed for air conditioning service they also serve many fluidics refrigeration oven and dryer applications. Clear easy to read and convenient external setpoint adjustment. You can adjust the differential by turning the short adjusting nut on the pressure switch clockwise to increase or counter clockwise to decrease the differential it s seldom required and i suggest you not tamper with this setting unless you know what.

How to set the water pump cut in and cut out pressures. External adjustment visible dial hermetically sealed snap or mercury switch gas pressure differential pressure switch is used with air and other compatible gases. Repetitive accuracy within 1 our highest precision conventional large diaphragm pressure switch provides maximum dependability. 20 pa up to 16 w c.

View and download dwyer instruments 1910 00 installation and operating instructions online. Our most popular series 1900 compact low differential pressure switch combines advanced design and precision construction to make these switches able to perform many of the tasks of larger costlier units. In addition it incorporates a visible set point indicator for maximum convenience. Applications include natural manufactured or lp gas.

For air and non combustible compatible gases series 1900 switches have set.