Watson Smith Type 440 Multifunctional I/P Converter

Please note that the type 440 is now completely obsolete and we are therefore not able to supply this exact unit.

However you will find below our suggestion for a suitable Watson Smith replacement unit.

Watson Smith Type 440

Specifications:

Input signal: 4-20mA, 1-5V, 2-10V (selected by switch and connection)
Output: 0.2 to 1bar (3 to 15psig) or 0 to 7bar (0 to 100psi)
Air supply:Upto 100psig (7bar);with optional filter regulator-150psig (10bar). Dry, non corrosive air filtered to 5microns
Connections: 1/4” NPT
Failure Mode: Failure mode selector with Signal failure indicator
4-20mA feedback as standard
High precision
Weatherproof IP65

Suitable replacement

When the type 440 became obsolete, Watson Smith did not create a direct replacement unit. Some of the features like the 4-20mA feedback and selectable failure mode are not available on the current range of Watson Smith product.

However, in many cases the flexibility of the type 440 is not required and can easily be replaced by a standard I/P converter (see the range of Watson Smith I/P converters) with an added 4-20mA feedback. Because this can be complex we recommed you to take note of your requirement and contact us so that we can find the best replacement for you.

Are you looking for a new Watson Smith item, a replacement or just some advice? Not sure where to start? As the top UK distributor for Watson Smith we can help!

Just send us an enquiry or call us now on 01202 480 303 or email us at sales@coulton.com !