Dwyer 1620 Series Single and Dual Pressure Switches

About Dwyer 1620 Series Single and Dual Pressure Switches

Dwyer 1620 Series Single and Dual Pressure Switches

High Reliability, Repetitive Accuracy within +1%

On the Series 1620 Single and Dual Pressure Switch our old faithful switch design is still best where highest precision combined with diaphragm sealed leak proof construction and mounting simplicity are required. Model 1626 and 1627 differential pressure switches are identical in design and construction except that Model 1626 has a single electric switch and Model 1627 has dual electric switches. Model 1627 can therefore provide dual control when required. It can be set to open or close two independent electrical circuits, each preset for its own actuation pressure. Both units have diaphragm sealed motion take outs providing maximum protection against leakage.

CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.

• Damper positioning
• Duct air control

Features

• Up to 3900 readings can be saved
• Entire memory can be read out in only 10 seconds
• Watertight housing (IP65)
• ComSoft 3 Basic Windows-compatible software facilitates graphs and tables, prints data, smoothes measurement curves, targeted value observation using crosshair function as well as logger programming and setting of limit values
• Data transfer via serial interface

• Service: Air and non-combustible, compatible gases
• Wetted Materials: Consult factory
• Temperature Limits: -30 to 130^oF ( -34.4 to 54.4^oC)
• Pressure Limits: Max. 50 in. w.c. (12.44 kPa) continuous, 2 psig (13.79 kPa) surge
• Switch Type: 1626, Single-pole doublethrow (SPDT); 1627, two Single-pole double-throw (SPDT)
• Repeatability: +1%
• Electrical Rating: 15 A @ 120-480 VAC, 60 Hz. Resistive, 1/8 HP @ 125 VAC,1/4 HP @ 250 VAC, 60 Hz
• Electrical Connections: 3 screw type, common, normally open and normally closed
• Process Connections: 1/8" female NPT
• Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations
• Set Point Adjustment: Screw Adjustment