SOR Mini-Hermet Hermetically Sealed - Manual

Form 1444 (03.13) ©SOR Inc. 1/4
These instructions provide information on how to replace the o-ring and the
diaphragm in the 101/121 Differential Pressure Switches.
101/121
Differential Pressure Standard
O-Ring and Diaphragm Replacement
General Instructions
Carefully read these instructions BEFORE attempting to replace
diaphragms. If this procedure is not followed or the same type
diaphragm and o-ring is not installed, the warranty is null and void.
Registered Quality System to ISO 9001
Design and
specifications are
subject to change
without notice.
For latest revision, go to
www.sorinc.com
None of the metal parts (nor the micro switch) can be replaced, nor can the body be
loosened without affecting the factory-adjusted overtravel. Diaphragms and o-rings
can usually be replaced without affecting factory adjusted overtravel.
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.
NN
Pressure
Switch
B3
Pressure
Switch
Mini-Hermet
Pressure Switch