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Spring Pack Measurement Device (SPMD)

Spring pack displacement measurement is essential for the proper setting of an MOV torque switch. Spring pack relaxation can result in excessive spring pack displacement. If the displacement becomes excessive, the spring pack can bottom out and cause an undesirable locked rotor condition.

Using Teledyne LeCroy Test Services' Spring Pack Measurement Device (SPMD) as part of an MOV diagnostic testing program assures that the spring pack is operating in its allowable range.

Size: 2” x 3 3/4” x 3 1/2”
Weight: 20 ounces
Accuracy: 2.0% FSO
Range: 1/2 inch Nom.
1 inch Nom
2 inch Nom

159151V SPMD
160094 Limitorque Adapter Plate