545-190 Tilting Level

Establish a precisely level plane

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545-190 Tilting Level

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Our 545-190 tilting level combines precision with rugged reliability to execute the most demanding leveling jobs.  The telescope has adjustments to maintain the line of sight straight throughout a focusing range of two inches to infinity, allowing the instrument to be located in the tightest of setups.  This straightness is maintained at ±0.001" (0.025mm) from two inches to 17 feet (50.8mm to 5.2m) and one arcsecond from 17 feet to infinity.  The main telescope tube has a removable section to facilitate conversion for autocollimation, autoprojection, or installation of a right angle eyepiece.  The optical micrometer produces repeatable readings with a resolution of 0.001" (0.025mm).  This provides a means of easily leveling all types of machinery and equipment, or evaluating the orientation of tables, ways, shafts, etc., to accuracies that are difficult to achieve by conventional mechanical methods.  Read more About Our Levels on this website for additional specific information on their many features and uses.

Drawing of Coincidence PrinciplePrecision leveling. The 545-190 gives you the ability to establish a line of sight which is extremely level.  The two-speed telescope tilting screw has a coarse thread to get you in the ballpark quickly, and a fine thread for those precise adjustments which bring you into perfect level.  In addition, a coincidence-type level with 2½ times magnification optically "folds" both ends of the precision level vial's bubble together, enabling you to detect the tiniest deviation from level.  One arcsecond of tilt is discernible using this "coincidence" vial methodology.

Right side of 545-190

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The horizontal axis pivots directly over the vertical axis, making the change in plane height less than 0.0001" for tilts up to 5 arc minutes either above or below horizontal. This important feature eliminates the need to perform the time-consuming precision plumbing procedure for leveling projects.

The model 545-190 uses high quality base components and leveling vials similar in design to our model 76-RH transit, allowing this instrument to sweep precise planes.  For rough leveling, the unit has a circular level vial mounted on the base.

Drawing of Reticle PatternMultiple capabilties.  The eyepiece of the 545-190 may be interchanged with accessories (listed below) to provide autocollimation, autoreflection, and reticle projection capabilities, just like our transits.  The reticle's filar/bifilar pattern makes for easy use with our optical tooling scales, or during collimation or autocollimation procedures.

545-1 (without 190 Micrometer)Tilting level comes with or without a micrometer.  Measurements from the optical reference line are taken by using an optical micrometer mounted on the telescope.  The 545-190 comes standard with a 190 optical micrometer. To order this instrument without the micrometer, use model number 545-1 (pictured at left).  You may wish to do this, for example, in order to substitute a metric micrometer or to use a 190 micrometer that you may already have.  Have a look at our other micrometers.

Specifications

Telescope Length:  16" (40.6 cm), with 190 micrometer installed

Magnification:  20X at 2" from objective; 30X at infinity

Field of View:  1 degree

Image:  Erect

Optics:  Low reflective, protective coating

Effective aperture:  1.34"

Reticle:  Glass, filar/bi-filar pattern (others available)
Focusing Range:  2" (5.1 cm) to infinity

Bearings:  Ball type with a runout of 0.000025" or less

Finish:  Two part, gray polyurethane enamel (textured)

Approximate Weight:  Instrument, 17 pounds (7.7 kg); instrument and case, 30 pounds (13.6 kg); shipping, 32 pounds (14.5 kg)

Case:  Plastic case with foam cushions to provide all-around support for the instrument

Includes adjusting pins, instruction booklet, and plastic cover.

May be used with...

  • 160-x Series Coordinate Optical Micrometers
  • 186 Plastic Autoreflection Target
  • 188 Glass Autoreflection Target
  • 190-x Series Optical Micrometers
  • 193 Right Angle Swivel Eyepiece (discontinued)
  • 193-L Right Angle Swivel Eyepiece, Illuminated Adapter
  • 196-1 Combination Projection, Auto-Collimation, Fixed Right Angle Eyepiece Unit (Must be installed at the factory)