Execution:
• The COMMUNICATING WATER LEVEL 77, according to DIN877, 
   consists of:
• Two measuring columns, each 250 mm high. Pairs delivered together
   provide upper surfaces (support for depth micrometer) ground to equal
   height (0.02 mm)
• 1 depth micrometer (available as an accessory)
• Connecting hose (length to be defined by the user)
• The upper rings serving as support for the depth micrometer are finely
   ground
• Scale on the column
• metric: 1 mm
• inches: 1/10 inch
• Scale on depth micrometer
• metric: 1 division = 1/100 mm
• inches: 1 division = 1/1000 inch
• Packed in a wooden storage case

Function:
• The Communicating Water Level 77 is based on the law of communicating
   pipes and is particularly suitable for measuring the difference in heights of
   2 or more distant points, which are not in direct connection to each other
• The pin of the micrometer feeler needle is approached to the water surface.
  Due to the surface tension of the water the liquid will „jump“ to the
  needle at the moment the pin touches the surface. Thanks to the window
  slots at the side, the moment of the surface disturbance is very well 
  detectable

Dimensions:
• height of column without micrometer 250 mm
• height of Column with micrometer 350 mm
• foot Ø 100 mm

Weight:
• net weight (without case) 5.000 kg
• gross weight 7.000 kg
• depth micrometer 0.150 kg
• hose, 1 m 0.100 kg

Sensitivity:
Experienced users can adjust 2 or more points to the same level
respectively determine their deviation within approx. 0.05 mm

新手教學

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