IMPSW180-01

PSW-180 SERIES

Differential Pressure Switches

I N S T R U C T I O N

M-1477/0500

S H E E T

 

 

 

GENERAL

The PSW-180 differential pressure switch utilizes dual diaphragm sensors to monitor the difference in pressure between two sources.

Part I - Installation

Tools Needed

Screwdriver to accommodate customer-supplied mounting screws

Adjustable wrenches (2)

MOUNTING

LOCATE SWITCH WHERE VIBRATION, SHOCK, AND AMBIENT TEMPERATURE FLUCTUATIONS ARE MINIMAL. TO AVOID DAMAGE TO CONTROL, ALWAYS HOLD

THE WRENCH ON THE WRENCH FLATS OR HEX PORTION OF THE PRESSURE CONNECTION WHEN TIGHTENING.

The control can be mounted in any position. Locate where ambient temperature is above 30°F and below 160°F.

Surface Mounting

Insert two #6 screws through mounting ear holes on 2” centers (Recommended mounting for maximum vibration resistance).

Pipe Mounting

Mount unit from its port(s). Always hold a wrench on pressure port when making pressure connection.

Making Pressure Connection

Use a wrench on the pressure port and thread a 1/4” NPTM fitting into the port. Be sure to connect high pressure source to port labeled “HIGH”. Similarly, connect low pressure source to “LOW”.

NEVER TIGHTEN BY TURNING THE CONTROL INTO THE FITTING.

MODELS PSW-181, 182, 185, 186 HAVE A POLYSULPONE PORT WITH 1/4” NPSF THREAD. A 1/4 NPT OR 1/4 NPS FITTING MAY BE USED WITH THIS CONNECTION. HOWEVER, IN BOTH CASES, THE MATING FITTING WILL BOTTOM-OUT IN THE PRESSURE CONNECTION. THEREFORE, WITH THESE MODELS, TEFLON TAPE MUST BE APPLIED TO FITTING FOR A TIGHT SEAL. DO NOT OVER TIGHTEN. CONNECTION TORQUE MUST NOT EXCEED 2 FT. / LBS. OVER

TIGHTENING MAY DAMAGE THE PORT.

WIRING

ALL LIVE SUPPLY CIRCUITS MUST BE DISCONNECTED BEFORE WIRING THE CONTROL. FOR ENCLOSED UNITS, CONNECT THE CONDUIT TO THE HOLE IN ACCORDANCE WITH NATIONAL AND LOCAL CODES. BRING WIRES UP TO THE TERMINALS FROM THE REAR. MAXIMUM RECOMMENDED

WIRE SIZE IS 16 AWG.

Unscrew terminal just enough to put stripped wire under terminal block clamp.

Part II - Adjustments

Tools Needed

Screwdriver

Use screwdriver to turn external adjusting screw on the side. Turn “in” (clockwise) to increase pressure setting. For best setting accuracy, set the switch using the actual working pressures encountered in the application.

Dimensions

MODEL

PORT

DIM A.

DIFFERENTIAL

 

 

PRESSURE

 

 

PSW-181, 182,

1/4” NPSF

 

185, 186

Polysulphone

2.75” (69.9 mm)

PSW-183,

 

 

184, 187, 188

1/4” NPTF Brass

3.125” (79.4 mm)

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Omega Engineering PSW-180 dimensions Part I Installation, Part II Adjustments, General, Mounting, Wiring
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PSW-180 specifications

Omega Engineering, a trusted name in the realm of measurement and control solutions, has made significant strides in the field of process instrumentation with its PSW-180 series. The PSW-180 is a high-performance pressure switch designed to deliver reliable and accurate pressure monitoring in various industrial applications. This device is a go-to choice for professionals seeking precision and durability in challenging environments.

One of the primary features of the PSW-180 is its adjustable set point, which allows users to customize the activation and deactivation pressure levels according to specific application needs. This flexibility is essential for ensuring that systems operate within safe pressure ranges, thus preventing potential equipment failures and enhancing operational efficiency. Furthermore, the device incorporates a rugged construction featuring weatherproof housing that meets NEMA 4X standards, making it suitable for both indoor and outdoor installations.

The PSW-180 employs advanced sensing technology, utilizing a high-quality piezoresistive pressure sensor capable of delivering accurate readings across a broad pressure range. This technology ensures that the device can monitor both low and high-pressure environments, making it ideal for a variety of applications such as HVAC systems, water treatment, and industrial processing.

Moreover, the PSW-180 boasts a quick response time, ensuring that it can promptly react to pressure fluctuations, an essential characteristic for critical processes where timing can impact safety and efficiency. The device is also designed with electrical connections that simplify installation and integration into existing systems, offering users a hassle-free experience.

In terms of operating temperature, the PSW-180 can withstand extreme conditions, enhancing its versatility in diverse environments. With a robust mechanical design, the pressure switch is capable of enduring shocks and vibrations, making it a reliable choice for dynamic industrial settings.

Overall, the Omega Engineering PSW-180 pressure switch stands out due to its combination of customizable settings, advanced sensing technology, and durable construction. It is engineered to meet the demands of modern industrial processes, making it an indispensable tool for engineers and technicians looking to maintain optimal performance in their systems. With the PSW-180, users can expect precision and reliability, ensuring their operations run smoothly and safely.
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