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Manual Keystone 1157

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Summary
  • Keystone 1157 - page 1

    V ision Screening with the DVS-V Model 1 157 PUBLICATION NO. 5920 Instr uction Manual KEY STONE VIEW DIVISION OF MAST/KEYST ONE ...

  • Keystone 1157 - page 2

    Content s The DVS-V Test Instrument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 DVS-V Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 The Elliptech Hand Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Keystone 1157 - page 3

    The Keystone DVS-V Vision Screener represents the fift h gen- eration of electro/mechanical vision test instrum ents. All func- tions are under pus h button con- trol… for unparalleled ease and reliability of operation. Com - pletely self contained, the unit operates from standar d 110-120 volt AC pow er. It’s light in weight, unusually compact ...

  • Keystone 1157 - page 4

    Under normal co nditions of use, the DVS-V will require little maintenance i f it is protected by a dust cover when not i n use. Virtually no repa ir or adjustment will be neede d, since all operat- ing com ponent are prote cted and solid-state circuitry assures ex- ceptionally h igh reliabi lity. Cleaning Periodically, som e cleaning will be neces ...

  • Keystone 1157 - page 5

    E A C B D F Elliptech Control Unit The newly de signed DVS-V Elliptech S oft-Touch hand control unit makes for eas y operations of the vision screener. By pressing the appropriate but tons on this compact panel, th e stereo tests can be advanced or re- versed, the subject’s ey es occluded, and the peripheral visi on test lam ps selectively lit. T ...

  • Keystone 1157 - page 6

    T e st Guide Subject to wear any glasses normally used when driving. Test #1: Quick Acuity Nine separate blocks containing three digits of 20/ 40 acuity letters each. The first column tests both ey es, the second tests ri ght eye acuity , and the third test left eye acuity. All three lines sh ould be read, and only as many as two digits i n each co ...

  • Keystone 1157 - page 7

    T e st Questions and Referral Guide Notes: All tests are given with both eyes open at all times. Subject to wear any glasses norm ally used for driving. Test #1 Quick Acuity at 20/40 Level Ask your subject: “ Do you see three columns with nu m bers?” “Look at the first column, starting from top to bottom , please read the di gits to me.” ? ...

  • Keystone 1157 - page 8

    Test #3 & #4 Depth Perception & Sign Recognition Ask the subject: “Pleas e identify all six road signs. What do they mean? ” “Do any appear closer to you than the othe rs? ” “Which on e?” “Do an y appear furt her away from yo u?” “Which? ” Actual Test Actual Test DEPTH / SIGNS 1. STOP (NEAR) 4. ROAD CLOSED 2. MERGE 5. HA ...

  • Keystone 1157 - page 9

    Test #5 Binocular Acuity Actual Test A B C 1. 20 = 857432 25 = 674235 30 = 382457 2. 40 = 563472 50 = 859423 60 = 8927 3. 70 = 2978 100 = 43 200 = 9 A B C 1. 20 = 547638 25 = 428576 30 = 943852 2. 40 = 795823 50 = 357248 60 = 7236 3. 70 = 9574 100 = 92 200 = 5 Note: Double Check the day /nite switch for desired position. Ask your subject to read th ...

  • Keystone 1157 - page 10

    Actual Test A B C 1. 20 = 745932 25 = 578236 30 = 346752 2. 40 = 534268 50 = 752386 60 = 6254 3. 70 = 8453 100 = 85 200 = 3 Proceed as on test #5 and #6. To pass the acuity t est, at least five of six charac ters must be read in Blocks A, Li ne 2 on each of t h e tests 5,6, and 7. This is a standard of 20/40 for each eye separa tel y, and both ey e ...

  • Keystone 1157 - page 11

    Horizontal Field Testing This test shows a subject' s range of vision to each side when he/s he looks straight ahead. Having the su bject direct his/her atte ntion to a far-point stereo target and then lig hting the periph eral target lamps at random. The stereo target used should be a s imple binocular target. Tell the subje ct to continue lo ...

  • Keystone 1157 - page 12

    2200 Dickerson Road, Reno NV 89503 Phone: (775) 324-2799 (800) 806-6569 Fax: (775) 324-5375 Email: saIes@keystoneview .com ...

Manufacturer Keystone Category Projector

Documents that we receive from a manufacturer of a Keystone 1157 can be divided into several groups. They are, among others:
- Keystone technical drawings
- 1157 manuals
- Keystone product data sheets
- information booklets
- or energy labels Keystone 1157
All of them are important, but the most important information from the point of view of use of the device are in the user manual Keystone 1157.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Keystone 1157, service manual, brief instructions and user manuals Keystone 1157. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Keystone 1157.

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A complete manual for the device Keystone 1157, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Keystone 1157 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Keystone 1157.

A complete Keystone manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Keystone 1157 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Keystone 1157, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Keystone 1157, that we can find in the current document
3. Tips how to use the basic functions of the device Keystone 1157 - which should help us in our first steps of using Keystone 1157
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Keystone 1157
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Keystone 1157 in a specific country, if it was not possible to solve the problem on our own.

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