Dwyer Series ADPS H.V.A.C. Differential Pressure Switch

Dwyer Series ADPS H.V.A.C. Differential Pressure Switch

The Series ADPS Adjustable Differential Pressure Switch is designed
for pressure, vacuum, and differential pressures. The dual scaled adjustment
knob in inches water column and pascals allows changes to the switching
pressure to be made without a pressure gage. The ADPS is available with
settings from 0.08˝ w.c. (20 Pa) up to 16˝ w.c. (4000 Pa). The silicone diaphragm
and PA 6.6 body make the series ADPS ideal for use with air and other
noncombustible gases. The compact size, adjustment knob and low cost make the
ADPS the perfect choice for H.V.A.C. applications.
APPLICATIONS
• Monitoring air filters and ventilators
• Monitoring industrial cooling-air circuits
• Overheating protection for fan heaters
• Monitoring flows in ventilation ducts
• Controlling air and fire-protection dampers
• Frost protection for heat exchanges
SPECIFICATIONS
Service: Air and non-combustible, compatible gases.
Wetted Materials:
Diaphragm material: silicone; Housing material: POM switch body: PA
6.6; Cover: Polystyrene.
Temperature Limits: Process and ambient temperature from -4 to 185˚F
(-20 to 85˚C).
Pressure Limits: Max. operating pressure: 40˝ w.c. (10 kPa) for all
pressure ranges.
Switch Type: Single-pole double-throw (SPDT).
Electrical Rating: Standard: max., 1.5A/250 VAC, max. switching rate: 6
cycles/min.; Gold contact option: 0.4 A/ 250 VAC.
Electrical Connections: Push-on screw terminals. M20x1.5 with cable
strain relief or optional 1/2˝ NPT connection.
Process Connections: 5/16˝ (7.94 mm) outside diameter tubing, 1/4˝
(6.0 mm) inside diameter tubing.
Mounting Orientation: Vertically, with pressure connections pointing
downwards.
Mechanical Working Life: Over 106 switching operations.
Weight: 5.6 oz (160 g).
Enclosure Rating: NEMA 13, IP54.
Agency Approvals: CE, RoHS.
Model
ADPS-01-2-N
ADPS-04-2-N
ADPS-03-2-N
ADPS-05-2-N
ADPS-06-2-N
ADPS-07-2-N
Ø11/64
[Ø4.5]
21/64
[8.5]
2-17/64
[57.5] 7/8
[22]
2-21/64
[59]
19/64
[7.5] 51/64
[18] –
(P2) +
(P1)
Ø15/64
[Ø6]
2-9/16
[65]
1-31/32
[50]
Approx. Dead Band @ Min
Set Point in w.c. (Pa)
0.04 (10)
0.06 (15)
0.08 (20)
0.4 (100)
0.6 (150)
1.0 (250)
Set Point Range
in w.c. (Pa)
0.08 to 0.80 (20-200)
0.12 to 1.60 (30-400)
0.20 to 2.00 (50-500)
0.80 to 4.00 (200-1000)
2.00 to 10.00 (500-2500)
4.00 to 16.00 (1000-4000)
Dual Scale
Field Adjustable
Set Point Knob
A-480
A
RoHS
ACCESSORIES
A-288, “L” type metal mounting bracket with screws
A-289, “S” type metal mounting bracket with screws
A-480, Plastic static pressure tip
A-481, Installer kit. Includes 2 plastic static pressure tips
and 7 ft (2.1 m) of PVC tubing
Approx. Dead Band @ Max
Set Point in w.c. (Pa)
0.05 (12)
0.09 (22)
0.09 (23)
0.5 (130)
0.8 (200)
1.4 (350)