Image focus (focus adjustment) is maintained at all focal lengths (zoom-in) and constant distance from object by means of back focal distance adjustment. contact block for 3TS34 3TX4010-2A Tightening Torque DOL & ASD Starter Incoming terminal Tightening Torque Outgoing Terminal Tightening Torque DOL 1 M4 1.0-1.5Nm M4 1.0-1. If necessary optimize by alternating with optical focus adjustment.Ģ、With unchanged optical focus adjustment and shortest focal length adjust the red and blue pick-up tube until optimum focus is achieved. Contactor Spare Contact Kit Refer Siemens Price List Electronic Star-Delta Timer Refer Table 4 Relay Refer Table 1 & 2 Contactor Refer Table 1 & 2 Aux.

With shortest focal length and divergent focus adjust the pick-up tube in W-channel until optimum focus is achieved. Set optical focus at greatest focal length. Picture Height 80 contains the four stars in the corners Picture Height 10 contains the two stars above and underneath the center star Picture Height 20 contains the two stars left and right to the center star Detailed information about our different Siemens test targets you can find here.

With the aid of a low transmission filter and by means of low level lighting make sure that the camera is not over modulated with the aperture in the open position.Ī) Optical focus: Adjust focus of zoom lens at greatest focal length.ī) Back focal distance (lens): Adjust focus at shortest focal length by regulating lens mechanically with adjustment screw and optimize alternatively with a).Ĭ) Back focal distance (pick-up tubes): If focus varies from channel to channel between greatest and shortest focal length, the individual pick-up tubes must be adjusted mechanically in the optical axis.ġ、Select white channel. It shows a 36 sector Siemens star on a white background. The YE0120 test chart is designed for the adjustment of camera lenses and checking back focal distance.

Zeiss siemens star chart pdf