. INSTRUCTION MANUAL Level and Transit-Level Prepared and edited by HERMAN J. SHEA Former Associate Professor of Surveying, Massachusetts Institute of Technology FOR CUSTOMER SERVICE, PARTS & REPAIR CALL 815-432-9200.
Berger 200b Transit Level
Your instrument is precision made and capable of numerous applications. Listed in the table of contents are a few representative building, engineering and farming This quality Berger instrument has been inspected twice for accuracy before leaving problems. The instrument has also been given the best protection possible against damage during transportation. SETTING UP THE INSTRUMENT ON THE TRIPOD Your Berger Instrument should now be leveled up, but to be certain, double-check.
For builders that require rough angle turning and fine tuning adjustments. These instruments have clamps and tangents that bring your instrument quickly on target. 15 minute horizontal circle and 1 degree vertical arc on Model 200 allow the builder to set rough angles.
Rotate the instrument 180° so the vial is reversed. If the bubble will not center when Your instrument is packed in a carrying case of modern design which affords reversed, follow adjustment procedure outlined under 'Bubble Adjustments.' PREPARING TELESCOPE FOR USE Inches and Eighths to Decimals of a Foot The telescope magnifies the image many times, so the field of view is limited.
Therefore, line up the telescope to your target by sighting along the telescope barrel much as you would aim a rifle. Suppose one of your points is below the line of sight and the other above (Fig. MEASURING AND LAYING OUT HORIZONTAL ANGLES is 4 feet 6-1/2 inches below the line of sight, and point D, the underside of a floor 7.1 Setting Up Over a Point With Plumb Bob beam is 7 feet 9-3/8 inches above the line of sight (the latter reading having been To measure or lay out an angle, set the instrument over a point and level it up.
This is what your vernier looks like after having turned the angle (Fig. Now, let's read the angle. Remember, we have turned to the left, so we are going to use the side of the vernier between the vernier index 'V' and the letter 'L'. NOTE: Do not be confused that the positions of 'L'. SPECIAL USES OF TRANSIT-LEVEL INSTRUMENTS In the following three sections, two special operations are illustrated which can be performed with instruments of the transit-level type but cannot be performed with a dumpy level. When leveling lock is engaged, it converts the transit-level to a level, so all other functions described in this manual can be performed.
PRACTICAL APPLICATIONS Offset Grade Stakes for a 12 foot Driveway 11.1. Grade Line for a Sewer CUT 2' Steps to find the slope necessary for a household sewer connection are shown below (Fig. Notice that the invert or flow-line of the pipe is used in each instance. CARE OF INSTRUMENT 14.
WARRANTY It will pay dividends to treat your instrument well. CST/berger (Seller) warrants the equipment of its manufacture to be free of defects in workmanship and material for a period of one year from date of purchase. If Avoid possibility of accident. ADJUSTMENT POINTS 18. Berger Instruments Berger Instruments. 19.
Fleming Street Watseka IL 60970 USA a division of The Stanley Works (815) 432-9200 Z94-TRANSLEV (1018).