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PENTAX Model AL-240B & AL-200 Auto Levels

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AL 240B and AL200  Auto Level
PENTAX Model AL-240B & AL-200 Auto Levels

These models are rugged, dependable, and designed for use in construction of all types. They are manufactured in 24X and 20X with the same basic concepts in design and durability as our most expensive automatic levels. Their rigid construction will ensure accuracy for years of service under severe conditions.

Telescope: Erect image with an analectic optical system. The resulting image is sharp and has high contrast, a traditional quality of PENTAX optics.  Easy aiming with the open gun sight which locates the target quickly and places it well within the field of view.

Automatic Compensator: Precise compensator, with special alloy ribbon, which provides extremely stable survey results even under unfavorable conditions such as vibration. The image is stabilized by a strong magnetic field but is not effected by any surrounding magnetic force.

Horizontal Circle:  Both models have a graduated horizontal circle with index marks at every 90° for convenient right angles.  The metal circle is enclosed for protection of the precise graduations.

Setting Up:  Can be mounted on flat or domed head tripods and have quick acting leveling screws for fast and easy setup.

Short Focus:  A level rod or target can be focused from only 35 inches which makes those tight jobs no problem at all.

Color:  The top of the level is bright red for high visibility on the job site. 

Size:  Light weight and compact. 

  AL-240b   AL-200
TELESCOPE 
Image  Erect 
Magnification 24X   20X
Effective aperture 32mm   30mm
Field of view (at 100m/ft) 2.6 m / 2.6  ft. 
Minimum focus (m/in.) 0.9 m / 35 in. 
Resolving power 3.5"   4"
Stadia ratio 1 : 100 
Stadia constant +10cm 
HORIZONTAL CIRCLE 
Minimum Division 1° 
Estimation 0.1° 
Type Metal 
Diameter 90mm 
COMPENSATOR 
Type Metallic Strand 
Damping Magnetic 
Range ± 12' 
Setting Accuracy ±0.5" 
ACCURACY 
Standard Deviation       
With micrometer       
Without micrometer ±2.0mm   ±2.5mm
Single Reading       
Fraction of inch at 100 ft. 2.53 / 64   2.79 / 64
RANGE 
Read rod graduations @ 330 ft.   250 ft.
SENSITIVITY OF VIAL 
Circular vial 8' / 2mm 
LEVELING BASE 
Type 3 screw 
Tripod Flat or Dome 
WEIGHT 
Instrument 1.1 kgs / 2.4 lbs. 
Carrying Case 0.8 kgs / 1.8 lbs. 
 
July 08, 2008 Copyright © 2001 ICM Ebiz Division.  ebiz@icmmail.com  We Specialize in building Construction Oriented Web Sites