Phone: 888 275 5772 281 516 9292 eFax: 866 234 0451 Free Shipping on orders over $150
N88-3 Basic Plus Pit Gauge Centre Mount 3.25in (82mm) Blade

N88-3 Basic Plus Pit Gauge Centre Mount 3.25in (82mm) Blade

Description
Price: $235.00 to $370.00
N88-3 Basic Plus Pit Gauges with Dial or Digital Indicators
Western Instruments Pit Gauges assure compliance with vessel, pipeline, tank and OCTG specifications for corrosion and erosion depth measurement.
Measuring Ranges x Resolution: 14mm x 0.01mm, 0.550 x 0.001 inch
Center-mount 3-1/4 inch (82 mm) Blade
Available with dial or digital indicators

The Western Instruments N88-3 Basic Plus Dial Indicator Pit Gauges allow the Corrosion Inspector to conveniently measure Pit Depth or material loss in areas of Weight-Loss Corrosion. Various Blades for the Pit Gauges are available for different applications, including the Bridging Pit Gauge which permits Inspectors to Span or Cantilever over large areas of Weight-Loss Corrosion, to get a true measure of Pit Depth.

basic pit gage
Basic
pocket pit gauge
Pocket (reversible)
basic plus pit gauge
Basic Plus
reference gauge
Reference Gauge
reaching gauge
Reaching Pit Gauge
reachingwmag
Reaching Pit Gauge with
Magnetic hold Downs
reachingplus
Reaching + Pit Gauge
reachingplusmag
Reaching Pit Gauge +
Manetic Hold Downs
basicmag
Basic + Pit Gauge with
Magnetic Hold Downs

Model Part # Description
Basic N88-2 Centre Mount 2 1/4" Blade, our most popular model
Basic Plus N88-3 Centre Mount 3 1/4" Blade
Basic Plus Magnetic N88-3M Centre Mount c/w Two(2) magnetic cartridges 3 1/4" Blade
Pocket N88-4 Dual Edge Blade (reversible) 1.5" long and spot base
Reaching N88-5 4 3/4" Blade. End Mount Dial Indicator w/Nose Cutout
Reaching Magnetic N88-5M 4 3/4" Blade c/w Two(2) magnetic catridges.
Reaching Plus N88-6 6" Blade. End Mount Dial Indicator w/Nose Cutout
Reaching Plus Magnetic N88-6M 4 3/4" Blade c/w Two(2) magnetic catridges.


line
Dial and Digital Indicators
line

ABQ Metric Dial Indicator Range:
Resolution:
Dial Diam.
0.0-10mm
0.01mm
35.5mm
Imperial Dial Indicator Range:
Resolution:
Dial Diam.
0.0-0.5"
0.001"
1.4"
Digital Indicator Range:
Dial Diam.
0.0-0.5"
0.0-10mm
56mm, 2.2"

line
Measuring Corrosion (Depth)
line

ABQ 1-Standard Tip 0.040" diam. #1 Contact Point-Standard N88-S
2-Conical Tip 0.010" diam. #2 Contact Point-Conical N88-C
3-Needle Tip 0.005" diam. #3 Contact Point-Needle N88-N

Western offers a variety of Contact Points, which are all 0.625" (16mm) long. Any ADG Contact point can be used with our special dial indicators, but a different length may affect Height Zeroing, or the vertical position of the Dial Indicator. Contact Points are easily replaced, by extending the Contact Point , and turning it counter clockwise.

line
Zeroing Dial Indicator
line

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.

line
Scale Zeroing
line

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.

ABQ

line
Height Zeroing
line

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.

Height Zeroing should be done, whenever the unit is put into to use.

ABQ

line
Zeroing a Digital Indicator
line

Digital Indicators can be Height Zeroed or Positioned in the same way as a Mechanical Dial Indicator. To Zero the Digital Indicator simply press the Zero Button when the Contact Point is on a reference point. If the Digital Indicator is Height Zeroed, press Zero when the Plunger is fully retracted.

ABQ

To select Metric or Imperial Measurement, simply press the mm/in Button.Whennot in use, press the On/Off Button to turn the Indicator off.

line
Indicator Positioning
line

The position (or rotation) of the Dial indicator can be changed by simply loosening the Clamp Fasteners or Set Screw, and rotate the Dial Indicator about the Blade. After the Dial Indicator is rotated, the unit should be Dial Zeroed.

ABQ

line
Magnetic Hold Downs
line

Magnetic Hold Downs need to be adjusted to fit the surface being tested. If the surface is flat or convex, the Hold Downs can be adjusted, with the Allen Key, to be flush with the knife edge of the blade. However, is the surface is curved (concave), like the inside of a vessel, the Hold Downs need to be adjusted so they dont interfere with the knife edge of the Blade

ABQ

line
Downloads
line

N88-3 Basic Plus Pit Gauge Centre Mount c/w Two(2) magnetic cartridges 3 1/4" Blade Instruction Manual

line
Buy Now
line


Check the items you would like to purchase then click "Add To Cart"
Item Price
$235.00
$240.00
$370.00
Accessories PRICE
$15.00
$15.00
$30.00