Wilkerson P01909 User Manual
Pneumatic Division
Richland, Michigan 49083
269-629-5000
Installation & Operation Instructions:
2M400F
Pressure Switch
ISSUED: November, 2003
Supersedes: January, 2002
Doc.# 2M400, ECN# 030539, Rev. 6
WARNING
!
To avoid unpredictable system behavior that can cause personal
injury and property damage:
• Disconnect electrical supply (when necessary) before installation,
servicing, or conversion.
• Disconnect air supply and depressurize all air lines connected
to this product before installation, servicing, or conversion.
• Operate within the manufacturer’s specified pressure,
temperature, and other conditions listed in these instructions.
• Medium must be moisture-free if ambient temperature is below
freezing.
• Service according to procedures listed in these instructions.
• Installation, service, and conversion of these products must be
performed by knowledgeable personnel who understand how
pneumatic products are to be applied.
• After installation, servicing, or conversion, air and electrical
supplies (when necessary) should be connected and the product
tested for proper function and leakage. If audible leakage is
present, or the product does not operate properly, do not put
into use.
• Warnings and specifications on the product should not be
covered by paint, etc. If masking is not possible, contact your
local representative for replacement labels.
Introduction
Follow these instructions when installing, operating, or servicing
the product.
Application Limits
These products are intended for use in general purpose
compressed air systems only.
Operating Inlet Pressure kPa PSIG bar
All Styles Pressure Max. 2067 300 20
Adjustment Range kPa PSIG bar
Flying Lead Pressure 172 / 689 25 / 100 1.7 / 6.8
DIN Connector Pressure 207 / 1034 30 / 150 2.1 / 10.3
(All shipped preset at 90 PSIG - 6.2 bar)
Operation
1. Description:
The pressure switch monitors air pressure and provides an
electrical output when the pressure drops below or exceeds
an adjustable preset pressure.
2. Adjustment:
Flying Lead
A. Remove screw from top of switch.
B. Using a 1/8" (3mm) hex wrench, turn the adjustment
screw clockwise to increase set point or
counterclockwise to decrease set point.
C. Replace screw.
DIN Connector
Using a 1/8" (3mm) hex wrench, turn the adjustment
screw clockwise to increase set point or
counterclockwise to decrease set point. One complete
revolution of the adjusting screw covers the complete
adjustment range.
Kits and Accessories
Bushing 1/4” to 3/8” ...................................................... 209P-6-4
Bushing 1/4” to 1/2” ...................................................... 209P-8-4
Wire Code:
Red - Normally Open
Green - Normally Closed
Black - Common
Wire Length = 18"
Strip Length = 1/4"
1/8" Hex
Cover Screw
Remove To
Adjust Switch
1-1/8" Hex
Flying Lead
Ground
1
(Common)
3
(Normally
Open)
DIN Connector
(19)
.75
.75
(19)
1.48
(38)
1/8" Hex
Adjustment
Switch
2
(Normally
Closed)
5/8" Hex
Ambient Temperature Range -40°C to 80°C (-40°F to 180°F)
Symbol
Installation Instructions
1. The pressure switch should be installed with reasonable
accessibility for service. Pipe joint compound should be
applied sparingly, and only to the male threads, never to the
female threads. Do not use PTFE tape to seal joints - pieces
have a tendency to break off and lodge inside the unit,
possibly causing malfunction.
2. Install pressure switch in gauge ports, manifold blocks, or
any airline application. Mounting may be in any position.
3. Installing a filter upstream of the pressure switch will provide
added protection against rust, pipe scale, and other foreign
matter.
WARNING
!
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE
PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED
ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY
DAMAGE.
This document and other information from The Company, its subsidiaries
and authorized distributors provide product and/or system options for
further investigation by users having technical expertise. It is important
that you analyze all aspects of your application, including consequences
of any failure and review the information concerning the product or
systems in the current product catalog. Due to the variety of operating
conditions and applications for these products or systems, the user,
through its own analysis and testing, is solely responsible for making the
final selection of the products and systems and assuring that all
performance, safety and warning requirements of the application are
met.
The products described herein, including without limitation, product
features, specifications, designs, availability and pricing, are subject to
change by The Company and its subsidiaries at any time without notice.
EXTRA COPIES OF THESE INSTRUCTIONS ARE AVAILABLE FOR
INCLUSION IN EQUIPMENT / MAINTENANCE MANUALS THAT UTILIZE
THESE PRODUCTS. CONTACT YOUR LOCAL REPRESENTATIVE.
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