Calibration Management Program

Legacy Product Support

Complete Parts Support for all Discontinued Honeywell Controls – All Leeds & Northrup Instruments – All Leeds & Northrup Standards – Hagan Meters

When you need Leeds & Northrup support, Process Instruments is recognized as the world leader. Process Instruments sells nearly all L&N instruments, standards and parts and is relied on by companies all over the globe for L&N technical support, calibration and service. More information can be found here.
Honeywell Logo
When Honeywell doesn’t stock it, call Process Instruments. By acquiring tooling and parts inventories from Honeywell, Process Instruments manufactures and sells legacy instruments and parts for nearly all of your older recorders, controllers and transmitters. When Honeywell discontinues an instrument, Process Instruments provides support. Click here for a complete listing.
If it’s Hagan support you need there is only one choice that represents the best. The first Ring Balance meter was built in Chicago in 1940. The Ring Balance design was purchased by The Hagan Instrument Company, which was purchased by Westinghouse in 1963. In 1997, Siemens acquired this division of Westinghouse and moved the Ring Balance Meter manufacturing to Oakdale, PA. Process Instruments purchased the Ring Balance line from Siemens in 1999, and to this day Process Instruments maintains a Hagan Ring Balance archive which includes specs for every meter built, repair and calibration services. Process Instruments also provides replacement parts, repair and technical support for Ring Balance meters and related products. Click here for more information.