NS35B

N-CAS® NS35B 35mm Aperture Bi-Stable Shutter

In our ongoing effort to continue to add products and improve the state of shutter technology, Vincent Associates, the manufacturer of UNIBLITZ® shutters, has again endeavored to expand the NS Shutter series with the introduction of the 35mm aperture version of the patented N-CAS® (Non-Contact Actuation System) shutter, the NS35B. The device’s reliability has been enhanced by significantly reducing the number of moving parts. In the 35mm aperture version, the NS35B, has a total number of six moving parts, five of which are the blades themselves! The activating mechanism is non-contact and has shown to increase its reliability through testing over similar shutter designs. The N-CAS® shutters have demonstrated to be one of the most reliable shutter devices of its type available on the market today!

The NS35B can be actuated by the VDM1000, a new driver built specifically to take advantage of the NS35's low power requirements. This new driver will permit the NS35B to operate with virtually identical open and close times. The NS35B can also be operated by the OEM +12 VDC driver, the ED12DSS. The NS35B will be available in multiple configurations. The standard shutter will operate as a bi-stable. In this configuration the shutter will not require power to remain in the open or closed position.

N-CAS series shutters can be configured to uni-stable operation as a special order, the NS35S. In this configuration the shutter will require power to remain open with a failsafe closure. There are no dimensional changes associated with this configuration, merely a different driver circuit which is selectable on the VDM1000. The shutter can also be set to a normally open configuration, the NSR35S.

FEATURES

• Patented N-CAS® actuator system radically reduces moving parts.
• Bi-stable configuration is standard.
• Simple design provides maximum clearance around the aperture.
• Machined flat surfaces for easy integration into virtually any system.
• Small form factor, 35mm aperture, 3.180 inch overall diameter.
• Reflective blades available.
• Terminated to 6 inch 5-pin male connector harness.
• Uni-stable version is available by special order and can be configured normally open or normally closed.

Electrical

Mechanical

¹ CONTinuous frequency rating specified at shutter’s minimum exposure pulse.BURST frequency rating specified for (4) four seconds maximum with (1) one minute minimum between bursts. Frequency measurements are taken in free air, 25°C ambient, actuator coil equipped with heat sink. For additional information on maximum sustained frequencies obtainable, please contact one of our technical representatives.

Timing

The following chart lists typical timing values (msec.) using UNIBLITZ® drive equipment and measured with UNIBLITZ® shutters equipped with standard black Teflon® coated shutter blades.

The question regarding enhancement of shutter speed with the application of user supplied lubricants has been repeatedly asked. It is our experience that lubricating the shutter blades will actually slow the shutter down and eventually render the shutter inoperable. UNDER NO CIRCUMSTANCES SHOULD ANY TYPE OF LUBRICANT BE APPLIED TO THE SHUTTER BLADE AREA

Timing data recorded with VDM1000 driver with drive pulse equal to MET.

Figure 1

The UNIBLITZ® NS35 is designed with a low-profile and flat surfaces for easy integration into your system. Hole locations are identical to the current CS35 as well as an additional set of mounting holes to provide supplementary installation options. The body of the shutter measures 3.180" in diameter and only .229” thick. The only protrusion from this envelope is the small actuator and hold down bracket, which has a clearance of 1.019” for the bi-stable coil design, from the center of the aperture.

A standard shutter is terminated by a 5-pin male connector with 6 inch cable assembly. The 510A cable is required when controlling the NS35 with the VDM1000. This cable is included with the VDM1000. There is an access slot located above the actuator that will allow for manual operation of the shutter if so desired. When using the OEM driver, the ED12DSS, the shutter can be equipped with a 2-pin JST connector to facilitate connection to this driver device.

Part Number Example

NS35B 1 T 0

^* Input side only, black coating is on opposite side. Intended to protect the shutter blade surface. The light source must be input to the reflective side only.