Pratt & Whitney Universal Supermicrometer®
Model 504 & Model 501
The definitive bench micrometer, the Universal Supermicrometer®( USM), offers the advantage of being two instruments in one, by providing the ability to measure both internal and external parts, gages or standards. Additionally, as a high precision, direct-reading metrology instrument, it is equally capable of checking critical parts such as shafts, bores, O-rings, or just about any ID/OD part. The USM digital bench micrometer can serve as both the heart of your in-house gage calibration needs and a high accuracy part inspection system.
Universal Supermicrometer® measures:
Length standards
External threads
Plugs & pins
Plain ring gages
Dial, digital and test indicators
Internal threads (per TPI/Pitch)
Tapered pipe threads
Your Precision Part
Features & Benefits of the Universal Supermicrometer ®:
Two models to choose from
Multi-axis (Model 504: U307000) - Measurement table includes swivel, center, tilt and elevation adjustments.
Single-axis (Model 501: U307042) - Measurement table includes elevation adjustment.
Mechanical and Thermal Stability
A rugged cast iron base and thermally stable composite materials insure repeatable and reproducible results
Linear Encoder with Zero Abbe Offset
A high precision glass scale located along the measurement axis eliminates Abbe offset errors that reduce overall measurement uncertainty
"Variable Attitude" Measurement Table
Vertical table adjustment is provided on all instruments. Multi-axis measurement table available on Model 504
Variable Force
Ranging from -8 to +40 ozf
Touch Screen Operator Interface
LCD touch screen computer can be positioned to accommodate each operator's needs
GageCal® control software [5]
Microsoft Windows® based software reduces data entry, eliminates transcription errors, and speeds up measurements of your digital Super Micrometer. GageCal automatically enters tolerances for rings, plugs, pins, threads (calculates pitch/major diameter) and flags out-of-tolerance conditions.
Two Point Calibration
Mastering with two, NIST traceable blocks, allows continuous, accurate measurement over the full direct reading range. This provides significantly higher levels of productivity when compared to single point comparators.
Flexible Fixturing
Pratt & Whitney's bid-directional probes (US Patent) and flat anvils are standard accessories. The bid-directional probes allow for both internal and external measurement without time consuming set-up changes. V-groove fixturing provides repeatable probe positioning.
Auto Zero Mode
Allows measurements to be taken at great speed, increasing throughput, without compromising accuracy.
Part Temperature Compensation
A sensor is provide to monitor the temperature of the specimen
Dual Measurement
Switches between English and Metric units without recalibration
SPECS: Universal Supermicrometer® Model 504 & Model 501
Units: English (Metric)
Accuracy: 10 + 0.7 L Microinches (± 2 std dev) (0.25 + 0.7 L / 1000 Microns (±
2 std dev))
Repeatability: 4 Microinches (± 2 std dev) (0.1 Microns (± 2 std dev))
Resolution: 1 Microinch (0.025 Microns)
Measurement Range Standard External (Bi-DirectIonal Probes): 0-11 inches
(0 to 279 mm)
External (Flat Probes):0 to 5 inches (0 to 27 mm)
Internal (Bi-Directional Probes): 1.0 to 11.5 inches (25 to 292 mm)
Direct Reading Range: 2 inches (50 mm)
Measuring Force External: 2 to 40 ozf (2 to 8 ozf)
Internal: 57 to 1134 gf (57 to 226 gf)
