Dwyer A2 - Manual (Page 2)

Maintenance/Repair
Regular maintenance of the total system is recommended to assure sus-
tained optimum performance. These devices are not field repairable and should
be returned to the factory if recalibration or other service is required. After first
obtaining a Returned Goods Authorization (RGA) number, send the unit freight
prepaid to the following. Please include a clear description of the problem
plus any application information available.
Dwyer Instruments, Inc.
Attn: Repair Department
102 Highway 212
Michigan City, IN 46360
.054”
(14)
1/8 ALLEN WRENCH
ADJUSTMENT SCREW
15/16” A.F.
(24) 1.67”
(42.5)
.35”
( 9 )
.35”
( 9 )
SEE
ORDERING
INFORMATION
∅ .82”
( ∅ 21)
SEE
ORDERING
INFORMATION
∅ .82”
( ∅ 21)
.35”
( 9 )
1.95”
(50)
1.12”
(29)
HEX 15/16”
(24)
The pressure switch is designed and manufactured in accordance
with Sound Engineering Practice as defined by the Pressure
Equipment Directive 97/23/EC. This pressure switch must not be
used as a “safety accessory” as defined by the Pressure Equipment,
Article 1, Paragraph 2.1.3.
The CE Mark on the unit does not relate to the Pressure Equipment
Directive.
Specifications
Process Temperature -4°F to +250°F (-20°C to +120°C)
Ambient Temperature -40°F to +250°F (-40°C to +120°C)
Switch SPST, 100 VA, 42V max. (>2 million
cycles @ 1,000 psi, max. 200 cycles/min.)
Approvals CE
Repeatability 5% of Highest Set Point @ 70°F (20°C)
Wetted Parts
Diaphragm Kapton®
Fitting Brass
Electrical Termination 6.3mm (1/4”) Spade or Screw Terminals
Process Fitting G or NPT 1/4”(optional 1/8”)
Deadband 1-2 psi
Proof Pressure 500 psi (34.5 bar)
Weight, Approximate 0.14 lbs. (0.06 kg)
Dimensions
Submersible Option