User's Manual

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Instructions

Pressure Switch

Moisture-resistant single control pressure switches used to detect pressure changes.

Not approved for use in European explosive atmospheres.

Models:

Tools Needed:

• 1-1/16 inch open end wrench

• flat blade screwdriver

Model No. Description

Pressure Range

Adjustment

Factory Pressure

Preset Max Pressure

557828 Stainless steel piston and

Buna-N o-ring sensor

400 - 4700 psi

(2.75 MPa, 27.57 bar

- 32.4 MPa, 324 bar)

750 psi rising

(5.17 Mpa, 51.7 bar)

4700 psi

(32.4 MPa, 324 bar)

557829 Stainless steel piston and

Buna-N o-ring sensor

1150 psi rising

(7.93 MPa, 79.28 bar)

557830 Buna-N, diaphragm sen-

sor

10 - 150 psi

(0.07 MPa, 0.69 bar -

1.03 MPa, 10 bar)

50 psi rising

(0.34 MPa, 3.44 bar)

1500 psi

(10.3 MPa, 103.4 bar)

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

3A0471B

ENG

Bulletin 15521

Summary of content (6 pages)

PAGE 1
Instructions 3A0471B Pressure Switch ENG Bulletin 15521 Moisture-resistant single control pressure switches used to detect pressure changes. Not approved for use in European explosive atmospheres. Models: Model No. Description 557828 Stainless steel piston and Buna-N o-ring sensor 557829 Stainless steel piston and Buna-N o-ring sensor 557830 Buna-N, diaphragm sensor Pressure Range Adjustment 400 - 4700 psi (2.75 MPa, 27.57 bar - 32.4 MPa, 324 bar) 10 - 150 psi (0.07 MPa, 0.69 bar 1.
PAGE 2
Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these symbols appear in the body of this manual, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.
PAGE 3
Warnings Installation • • • • 4. Mount using pressure connection: always use a wrench on pressure connection wrench flats. A high or low limit switch is necessary for application where a runaway condition could result. 5. Attach conduit connection, hold electrical connection steady with wrench on hex, then thread in conduit. 6. Test unit before use. The adjustable range must be selected so that incorrect, inadvertent setting at any range point cannot result.
PAGE 4
Warnings 6. After setting is complete, slide adjustment collar (a) (closed), over adjustment chamber opening (FIG. 2). Technical Data and Dimensions Ambient Temperature Range Maximum Media Temperature Termination Type Electrical Ratings @125 VAC & 250 VAC, 1/4 hp* a FIG. 2 7. Recheck set point and install switch according to Installation instructions. @30 VDC* @125VDC* 0° to 160°F (-17° to 70°C 200°F (93°C) 1/2 NPT 5A resistive / 5A inductive (75% power factor) 5A resistive / 3 A inductive 0.
PAGE 5
Notes Notes 3A0471B 5
PAGE 6
Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.