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N88-2-M Basic Pit Depth Gauge


The N88-2-M Pit Gauge with a 63.5 mm (2.5") basic blade is the perfect tool to determine the amount of surface corrosion on metal constructions like pipelines, support structures, storage tanks, drill pipes, steel bridges, aircraft components or concrete structures. 
The measurements can be focused on local corrosion areas but with the proper extensions the corrosion inspector can span larger areas to determine the material loss and/or dents over these larger areas.

This pit gauge has a spring loaded lever that makes it very suitable for fast inspection of various surfaces.
The blades are interchangeable and can be height adjusted.
 
Our Pit Gauges assure compliance with vessel, pipeline, tank and OCTG specifications for corrosion and erosion depth measurement.


Features
  • Analog metric gauge
  • Resolution 0.01 mm
  • Range 0.0 to 12.7 mm
  • Measurement by manual pressure by plunger
  • 63.5 mm blade
  • Read indicators are interchangeable between all model bridges and blades in the N88 series
  • Conforms to ASTM G46-94
  • Includes NIST- Traceable Calibration Certificate

Complete Kit

The complete kit includes:

  • Metric dial gauge
  • Needle Point (#1) Installed
  • Conical tip (#2)
  • Blade 63.5 mm
  • Allen wrench
  • NIST Certificate
  • Instruction manual
  • Wooden box 90 mm x 150 mm x 39 mm (L x W x H)

 



360 degree photo

Available Contact Points
  • 1

    Contact Point (or Standard) – N88-S. This Contact Point was designed for general Corrosion Testing, and remains the most universal in use. The #1 tapers down, over its length, to a blunt point that is less than 0.75 mm (0.030”)  in Diameter.

  • 2

    Contact Point (or Conical) – N88-C. This Contact Point is more robust than the Standard Contact Point, due to its much larger size. The #2 Contact Point is recommended when a large amount of Scanning is being performed. The #2 tapers down, over its length, to a rounded point that is approximately 0.5 mm (0.020”) in Diameter.

  • 3

    Needle Point – N88-N The Needle Point was developed to satisfy the needs of Corrosion Coupon Evaluations, where pits are shallow and small in diameter. The #3 Needle Point tapers down to a very sharp point, so as a result they tend to be very delicate.

contact points


Zeroing Dial Indicator before use

The vertical position of the Contact Point, needs to be Zeroed with respect to the Knife Edge of the Blade. Zeroing can be accomplished in two ways; by adjusting the Height of the Dial Indicator in the Blade; or by Rotating the outer Bezel Scale while pressing on the Plunger onto a flat surface.

Height Zeroing
Loosen the Fastener(s) holding the Dial Indicator in place. Hold the Blade firmly on a Flat Surface, and gently press the body of the Dial Indicator down until the contact point touches the flat surface. Carefully re-tighten the Clamp Fastener(s) or the Set Screw. Any fine zeroing can be done by rotating the Bezel Scale on the Dial Indicator

Dial Zeroing
To quickly check the Zero Point of the Dial indicator, place the Blade on a representative smooth surface. Gently press the Plunger, until the contact point touches the surface. While the contact point is on the surface, loosen the Bezel Lock, and rotate the Bezel Scale until it reads '0' with respect to the pointer.


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Dimensions
Dimensions Pit Gauges N88-2-M


Specifications
Measuring range
0.0 to 12.7 mm
Resolution
0.01 mm
Scale diameter
36 mm
Spring force
Self retracting needle
Weight (net.)
175 g
Weight (including case)
300 g
Length blade
63.5 mm
Dimensions case
90 mm x 150 mm x 39 mm (L x W x H)
Warranty
1 year

Buy Now
Product

Product name
Price
Quantity
N88-2-M Metric Basic Pit Gauge (0-14mm @ 0.01mm resolution)
€ 175,00 
 
Accessories

Product name
Price
Quantity
N88-S - Standard #1 Contact Point
€ 14,00 
N88-C - Conical #2 Contact Point
€ 14,00 
N88-N - Needle #3 Contact Point
€ 30,00 
All mentioned prices are excluding VAT & excluding shipment costs.
Availability: Available , preorder 1-2 weeks , special order, request

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