Issued: August 1997


A. General

The 450-A/RVDT is a device which produces a voltage whose magnitude varies linearly with the angular position of its shaft. There are no slip rings to produce mechanical friction or induce electrical noise because the coupling between the stationary windings and the rotor are electromagnetic only. The precision bearings, which support the operating shaft, are the only friction producing elements.

The RVDT is capable of continuous rotation; however, most RVDT's operate within a range of +/- 30 degrees. Within this range, linearity is better than +/-0.25% of full displacement. Resolution is essentially infinite.

B. Installation

For installation instructions referenced the following specification:

Foot Mounts - CC450FM/(FM), CC46FM (46FM), or CC56FM (56FM) Foot Mounts Centering and Alignment Installation Instructions - R102

(MM) Nema 56C Face Mount (Motor Mount) Installation Instructions -R103

(56C) Nema 56C Flange Mount Installation Instructions - R104

(FC) FC Flange Mount with Stub Shaft Installation Instructions - R105

(45P) CC45P Flange Mount Installation Instructions - R106

(46C) CC45C Flange Mount Installation Instructions - R107

For application of special mounting, installation instructions will be provided with shipped sensor.


Carlen Controls, Inc. warrants its products to be free from defects caused by faulty materials or poor workmanship for a minimum period of one year from the date of shipment from Carlen Controls.

This warranty does not cover defects or damages caused by service or repair performed by anyone other than Carlen Controls. Do not attempt to open covers or housings where fasteners have been sealed.

Carlen Controls’ liability is limited to replacing, repairing or issuing credit at its option, for any products which are returned by the original purchaser during the warranty period. Carlen Controls makes no warranty that its products are fit for the use or purpose to which they may be put by the buyer, whether or not such use or purpose has been disclosed to Carlen Controls in specifications or drawings previously or subsequently provided, or whether or not Carlen Controls’ products are specifically designed and/or manufactured for the buyer’s use or purpose. Carlen Controls’ liability on any claim for loss or damage arising out of the sale, resale or use of any of its products shall in no event exceed the selling price of the unit.

Carlen Controls warranty covers only products manufactured by Carlen Controls. Products used in conjunction with Carlen Controls products but supplied by another manufacturer; such as Inland Motors’ tachometer and Hubbell overspeed switches, are covered by original manufacturer’s warranty.

Return Products Procedure

No products may be returned, whether in warranty or out of warranty, without first obtaining approval from Carlen Controls. Any returned product (s) must be accompanied by a return authorization number. Products must be returned, prepaid, to Carlen Controls (no COD or Collect Freight accepted). The status of any product returned later than (3) days after the issuance of a return authorization number will be subject to review.

Returned Product Warranty Determination

After Carlen Controls’ examination, warranty or out-of-warranty status will be determined. If upon examination a warranted defect exists, then the product (s) will be repaired at no charge and shipped, prepaid, back to the buyer.

Return Product Non-Warranty Determination

After Carlen Controls’ examination, the buyer shall be notified of the repair cost. At such time the buyer must issue a valid purchase order to cover the cost of the repair and freight, or authorize the product (s) to be shipped back as is, at the buyer’s expense. Failure to obtain a purchase order number or approval within (30) days of the notification will result in the product(s) being returned as is, at the buyer’s expense.

Rush Service

At times, the buyer may desire to expedite a repair. Regardless of warranty or out-of-warranty status, the buyer must issue a valid purchase order to cover the added rush cost service. Rush service is subject to Carlen Controls’ approval.

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