The A20DP-30 Differential PressureSwichgageis a 2″ dual-scale dial, diaphragm-actuateddifferential pressure-indicating gage, with abuilt-inelectrical switch. This switch is used for tripping alarms and/or shutting down equipment. The A20DP-15, with apressure range of 0-30 psi, is intended to monitor and indicate oil, fuel or water filter restriction and can reduce the risk of dangerously high pressure which may rupture the filter, resulting in contaminants entering the system.
This filter restriction Swichgage will let you know when to change your filter and maintainpeak efficiency. Inside the A20DP-30, the tempered nickel silver gage pointer acts as a pressure indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contacts have aself-cleaning motion to ensure electrical continuity.
Dial:White on black, dual USA/UK standard scale
2 inch/51 mmdial gage
Case: polycarbonate
Bezel: Polished stainless steel, standard; others available
Lens: Polycarbonate,high impact
Temperature Range:
Ambient:-40° to 150° F (-40° to 66° C)
Process:-40° to 250° F (-40° to 121° C)
Process Connection: 1/8-27 NPTM brass.
Sensing Element: Beryllium copper diaphragm.
Gage Accuracy:±3% maximum across scale
Adjustable Limit Contact: SPST contact; pilot duty only, 2 A @ 30 VAC/DC;
closed when thelow limit is met, open when pointer is innormal operating range. Contacts are gold flashed silver.
Limit Contact Adjustment: by 1/16 in. hex wrench through 100% of scale.
Limit Contact Terminals:A20DP Series #4 screw terminals
Unit Weight: A20DP-30: 0.25kg.
Unit Dimensions: A20DP-30: 3 x 2-3/4 x2-3/4 in. (76 x 70 x 70 mm).
The A20DP-30 Differential PressureSwichgageis a 2″ dual-scale dial, diaphragm-actuateddifferential pressure-indicating gage, with abuilt-inelectrical switch. This switch is used for tripping alarms and/or shutting down equipment. The A20DP-15, with apressure range of 0-30 psi, is intended to monitor and indicate oil, fuel or water filter restriction and can reduce the risk of dangerously high pressure which may rupture the filter, resulting in contaminants entering the system.
This filter restriction Swichgage will let you know when to change your filter and maintainpeak efficiency. Inside the A20DP-30, the tempered nickel silver gage pointer acts as a pressure indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contacts have aself-cleaning motion to ensure electrical continuity.
