Manual

ManualsBrandsSOR ManualsSensors141 Differential Pressure Switch

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Form 1307 (04.13) ©SOR Inc.

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131/141 Nuclear-Qualified

Differential Pressure Switches

General Instructions

NOTE: If you suspect that a product is defective, contact the factory or the SOR

®

Representative

in your area for a return authorization number (RMA). This product should only be installed by

trained and competent personnel.

Installation

Mount pressure switch to rigid vertical mounting surface with four 1/4-20 Grade 5 screws

(not supplied). Torque screws to 70 - 85 in/lbs. The 141 must be oriented with the sensor

down (housing up).

Design and specifications are subject to change without notice.

For latest revision, go to www.sorinc.com

141

Cover Screws

1/8” NPT(F) Vent Connection

Body

Mounting Holes

Wire LeadsHousing

3/4” NPT(F) Conduit Connection

High Side Process Connection

Low Side Process Connection

Low Side Process Connection

Sensor

131

Cover Screws

1/8” NPT(F) Vent Connection

Body

High Side Process Connection

Mounting Holes

3/4” NPT(F) Conduit Connection

Wire Leads

Low Side Process Connection

Housing

Sensor

Summary of content (4 pages)

PAGE 1
31/141 Nuclear-Qualified Differential Pressure Switches General Instructions 131 Housing Cover Screws 1/8” NPT(F) Vent Connection Wire Leads 3/4” NPT(F) Conduit Connection Sensor Body High Side Process Connection 141 Cover Screws Mounting Holes Low Side Process Connection Housing 1/8” NPT(F) Vent Connection Body Wire Leads 3/4” NPT(F) Conduit Connection Sensor Mounting Holes Low Side Process Connection Low Side Process Connection High Side Process Connection NOTE: If you suspect that a p
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Process Connection Be certain the process connection is tightened and positioned so bending and torsional forces imposed on pressure switch are minimal. Use care not to loosen sensor assembly from housing. 131 - One process connection is provided for the high-pressure side of the device and one for the low-pressure side. 141 - Two process connections are provided for the high-pressure side of the device and two for the low-pressure side.
PAGE 3
Calibration This instrument may be calibrated as a pressure switch (low side vented); however, for best performance, calibrate under simulated operating conditions. The 131 has a static shift of -1 psi per 100 psi applied static. If the unit is calibrated without static pressure applied, the set point should be adjusted to counter the actual static pressure.
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Maintenance Cover Gasket Replacement SOR provides one new replacement gasket (SOR P/N 8923-180) for each new switch. It is recommended that the new gasket be installed upon installation of a new switch and the old gasket be discarded. After that time, the gaskets must be replaced based on the following schedule: If Cover Is Not Removed If the cover is not removed at any time, the gasket need not be replaced for up to five years.