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They Type NPD series of analog display dials consist of a commercially procured planetary drive mechanism mounted on a baseplate assembly. The baseplate holds a removable paper scale and clear plastic protector, lined with a removable mitered plastic molding. This allows the user to mark or calibrate the scale as necessary for the equipment it is to be used on. The reduction rate of the planetary drive is either 6 to 1 or 8 to 1, depending on the unit selected. All models are intended to drive the controlled device attached through 180 degrees of rotation.







  Type NPD-1

Type NPD-2

Type NPD-3
Width 3 in.

5 1/8 in.

5 1/8 in.

2 in.

3 5/8 in. 3 5/8 in.
Max Projection Off panel 1 in. 1 5/16 in. 1 in.
Coupling in. shaft with set crew in. shaft with set screw in. shaft with set screw




Indicator rotation 180 degrees 180 degrees 180 degrees


Type NPD-1 and 2 assemblies are held to the front panel by the two machine screws also used to mount the planetary drive mechanism to the base plate. On the NPD-3 unit separate mounting screws are utilized to secure the unit to the panel. All three types come with two printed, uncalibrated paper scales.

Price: Type NPD-1 $39.95

Type NPD-2 $49.95

Type NPD-3 $49.95

UPS Ground S/H, all units $5.00

Overseas Customers: Please note that an additional overseas shipping charge will be applied to your order. National RF will notify you of the exact amount of shipping to your country via e-mail, after your e-order is placed. The customer is responsible for all and any customs or tarrif charges applied to your order.


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