AP250 Automated Chart Projector User's Guide
©2011 Reichert, Inc. Reichert is a registered trademark of Reichert, Inc. The information contained in this document was accurate at time of publication. Specifications subject to change without notice. Reichert, Inc. reserves the right to make changes in the product described in this manual without notice and without incorporating those changes in any products already sold. Federal law restricts this device to sale by or on the order of a physician.
Contents 13800-101-Rev.
Introduction Congratulations on your purchase of the AP250 Automated Projector. In the field of subjective refraction, the AP250 is used for measuring visual acuity. This User’s Guide is designed as a training and reference manual. We recommend you carefully read and follow the steps in this guide to ensure optimum performance from your new instrument. Please retain this guide for future reference and to share with other users.
Instrument Components 1. Projector Head 7 2. Projection Lens 13 3. Remote Detection Window 4. Remote Control Unit 5. Mounting Bracket 6. Clamp-down Screw 8 9 7. Power Switch 8. Fuse Compartment with Voltage Indicator 9. Power Input 10. Halogen Bulb Housing 11. Chart Focusing Control 12. Distance Focusing Control 13. RS232C Serial Port 1 2 3 10 4 11 12 5 6 13800-101-Rev.
Installation The AP250 should be installed according to the following procedures: 1. If using a wall mount, it is best to locate a wall stud to support the projector’s weight. 2. The following distances are important in the set-up of a refracting room: REFRACTING DISTANCE (RD) The distance from the patient’s eye to the screen. PROJECTION DISTANCE (PD) The distance from the slide to the screen.
Alignment / Focusing The AP250 can be optimally focused at projection distances between 10 ft (3 m) and 26.5 ft (8 m) when the patient and projector are equidistant from the projection screen. 2. Check the three-dimensional alignment of the system. To optimize the alignment, it may be necessary to angle the screen to direct light towards the patient’s head. As a test, place a mirror on the screen. The light should project where the patient's head would be (see Figure 3). 3.
Remote Control The AP250 is operated by an intuitive remote control that is divided into various sections for ease of use (see figure 5). When the power switch on the back of the instrument is in the ON position, slides can be projected by simply pushing any button. The Lamp ON / OFF button can be used to turn the lamp off at anytime. Otherwise, the AP250 lamp shuts off automatically after 10 minutes of non-use.
CHANGING THE EMISSION CODE Using the Programed Sequence The codes of the projector and remote control are factory set to 00. It is advisable to change the emission code of the Remote Control unit if several projectors are used in close proximity to one another to avoid interaction. 1. Press the Program Key (1 or 2). To change the code, follow the steps below: 1. Open the battery compartment on the rear of the remote control (see Figure 6).
Care and Maintenance WARNING: Risk of electric shock. Always disconnect the power cord from the wall and the instrument before performing any of the following care and maintenance procedures. CHANGING THE HALOGEN BULB WARNING: Never touch a Halogen Bulb with bare hands as fingerprints will shorten the bulb life. Never remove a bulb that has recently been in use as it will be very hot. Wait until it has cooled and use gloves or a thick cloth when handling any halogen bulb. 1.
Slide Library Letter Charts Number Charts Illiterate Charts Children Charts Special Charts Astigmatism Red-Green Cross Cylinder Phoria Phoria with fixation Minute Stereo Fixation point Vertical Coincidence Binocular Balance Vertical Line Horizontal Line Worth 13800-101-Rev.
Letter Sizing Chart - Feet REFRACTING DISTANCE FEET 30 28 26 24 22 20 18 16 14 12 10 8 29 29 27 27 25 25 23 23 21 21 19 19 17 17 15 15 13 13 11 11 9 9 7 7 30 28 26 24 22 20 18 16 14 12 10 8 Figure 9 - Letter Sizing Chart in feet 12 13800-101-Rev.
Letter Sizing Chart - Meters REFRACTING DISTANCE METERS 9.00 9.00 8.75 8.75 8.25 8.25 7.75 7.75 7.00 7.25 7.25 7.00 6.50 6.75 6.75 6.50 6.25 6.25 5.75 5.75 5.25 5.25 4.75 4.75 4.25 4.25 3.75 3.75 3.25 3.25 2.75 2.75 2.25 2.25 8.50 8.00 7.50 6.00 5.50 5.00 4.50 4.00 3.50 3.00 2.50 2.00 8.50 8.00 7.50 6.00 5.50 5.00 4.50 4.00 3.50 3.00 2.50 2.00 Figure 10 - Letter Sizing Chart in meters 13800-101-Rev.
Technical Specifications Projection Distance Refraction Distance Number Of Test Charts Masks 10 Ft (3 M) To 26.5 Ft (8 M) 7.4 Ft (2.3 M) To 30 Ft (9.2 M) 33 Standard Test Charts - Red/Green, Polarization, Single Horizontal Lines, - Single Vertical, Single Letters And Single Numbers. Tilt Range Of Projector Automatic Switch-Off Power Requirements Line Voltage Line Frequency Line Fuse On 110V Line Fuse On 230V Projection Lamp Grounding Wire ± 15° After 10 Min. Without Operation.
Reichert Product Warranty This product is warranted by Reichert, Inc. against defective material and workmanship under normal use for a period of one year from the date of invoice to the original purchaser. (An authorized dealer shall not be considered an original purchaser.) Under this warranty, Reichert’s sole obligation is to repair or replace the defective part or product at Reichert’s discretion.
Reichert, Inc. 3362 Walden Ave Depew, NY 14043 USA Toll Free: 888-849-8955 Phone: 716-686-4500 Fax: 716-686-4545 Email: info@reichert.com www.reichert.com Reichert GmbH Hubertstrasse 2 D-82229 Seefeld Germany Phone: +49-8152-993530 Fax: +49-8152-993535 ISO-9001 / 13485 Registered May 2011 13800-101 Rev.
