DSI offers both repair and calibration for Hans Rudolph Pneumotach and Controller. The Pneumotach and Controller are manufactured by Hans Rudolph, Inc. Hans Rudolph also offers both repair and calibration for the Pneymotach and Controller.
To have a Validyne Transducer repaired or calibrated by DSI, simply contact DSI support at email@example.com.
However it would be faster and less expensive to contact Hans Rudolph directly. Go to Hans Rudolph Return Authorization Number (RNA) and fill out their Return Authorization Number form. Hans Rudolph can provide information on costs and instructions on how to return product.