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Hand Metrology - Dial Indicators - Long Range and Extra Long Range Indicators

Mahr Indicators are extremely versatile precision measuring instrument to be employed in production and in inspection rooms.

  • A complete product range of both Digital and Dial Indicators plus a wide range of accessories that offers the best solution for every measuring task
  • All Digital Indicators have practical measuring functions and are equipped with a data output for easier measuring value evaluation
  • Mechanical Dial Indicators possess a highly precise movement, also available are a shockproof and a waterproof version, etc.
     
   
 

For applications where extended measuring range is needed or spindle retraction is necessary.

  Long Range/Extra Long Range (Inch)
Dial: soft-green tint
  Long Range  
  Measuring Graduation Dial Range per Accuracy ANSI/AGD Model Order
  range value style revolution   Group number number
  .500 .001 0-100 .100 .001 2 28IQN 2014699
  .500 .0001 0-10 .010 .0001* 4 42IQ 42IQ
  1.000 .001 0-100 .100 .001 2 28ISN 2014698
  1.000 .001 0-100 .100 .001 3 D8IS D8IS
  1.000 .010 0-100 1.000 .010 2 29I 2014816
                 
  Extra Long Range            
  2.000 .001 0-100 .100 .001** 3 D8IT  
  3.000 .001 0-100 .100 .001** 4 E8IU  
                 
  * for first 2-1/2 revolutions only.
** for first 1 inch of travel.
           
                 
  Long Range/Extra Long Range (Metric)            
  Dial: yellow tint              
  Long Range            
  25.000 0.010 0-100 1.000 .020 2 SP6IS
  25.000 0.010 0-100 1.000 .020 3 SQ6IS
  Extra Long Range            
  50.000 0.025 0-25 2.500 .025*** 3 Q8IT
  75.000 0.025 0-25 2.500 .025*** 4 R8IU
               
  *** for first 25mm of travel.          
Dial Styles for Long Range and Extra Long Range Indicators
  • Normally furnished: continuous clockwise dial; centered vertical lug back; regular contact point, .18in radiused, .250in long.
  • Long Range Models: include (1) revolution counter (except C9I without revolution counter). Extra Long Range Models: include (2) revolution counters.
  • For other dial styles or special requirements - call Mahr Federal Technical Assistance.
  • Indicator dimensions are located on pages containing individual ANSI/AGD descriptions.
  • Contact Points
  • Backs and Mounting Brackets
  • Accessories
Ordering Information
In addition to the information provided above, see instructions on ordering your dial indicators and accessories.
Dial Indicator Modifications & Specials
  • Special Ranges
  • Restricted Hand Travel
  • Special Dials
  • High Temperature
  • Special Contact Points
  • 8mm Stem Diameters Special Lengths
  • Specified Contact Load
  • Counter-clockwise Movement
  • Special Stem Lengths
  • Push-Down Action
    Available to meet specific requirements.
  • Special Ratio Movement
  • Threaded Stems
28IQN
29I
D8IT&E8IU
SP6IS&SQ6IS
42IQ
Q8IT&R8IU

Prepaid wire transfer required for all international orders
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