Mitutoyo 547-360A Digimatic Pipe Thickness Gauge

Technical Overview

Digital pipe thickness gauge with 0-10mm range, 0.01mm resolution, ±20µm accuracy, 20mm throat depth, IP42 rating, and ABSOLUTE linear electrostatic scale.

Key Features

Retains origin zero-point settings across power cycles with ABSOLUTE linear scale technology
Optimized for hollow tubes and curved parts with a ø3 mm flat contact point and ø3.5 mm ball anvil
Equipped with an ID-C Digimatic indicator (No. 543-710BS) featuring a 330° rotating display face
Robust IP42 environmental rating protects electronic components from dust and vertical water drops
Enables seamless SPC data collection with bidirectional Digimatic S1 interface capabilities
Features a clear 6-digit LCD screen with a prominent 11.0 mm character height
Delivers up to 2,700 hours of continuous operation on a single CR2032 battery
Equipped with GO/±NG tolerance judgment outputs for immediate go/no-go screening on production lines

Technical Specification Matrix

Parameter	Value
Measuring Range	0 - 10 mm
Resolution	0.01 mm
Accuracy	±20 µm
Measuring Force	1.5 N or less
Maximum Measuring Depth (Throat Depth)	20.0 mm
Contact Point	ø3.0 mm Flat
Anvil Type	ø3.5 mm Ball
Indicator Model	ID-C No. 543-710BS
Ingress Protection Rating	IP42
Data Interface	Digimatic S1 Bidirectional
Power Supply	1 x CR2032 3V Battery
Battery Life	Approx. 2700 hours (continuous use)
Display	6-digit LCD, 11 mm character height
Functions	Origin-set, Zero-setting, GO/±NG judgment, counting direction switching, Power ON/OFF, Data output, inch/mm conversion
Physical Weight (kg)	0.23
Dimensions L x W x H (cm)	8.5 x 4 x 11.5

Industrial Applications

1. Automated Tube Wall Thickness Verification

During the manufacturing of metal or polymer tubes, ensuring uniform wall thickness is critical to maintaining burst pressure ratings. Inspectors can slide the spherical ø3.5 mm ball anvil inside the tube end while the flat ø3 mm contact point gauges the outer surface, obtaining instant digital readings.

Problem Solved

Traditional flat-anvil micrometers cannot measure inside curved walls, and manual instruments are slow. This gauge's ball anvil and quick-trigger release allow high-throughput, repeatable wall thickness verification with a ±20 µm accuracy limit.

Wall ThicknessTube InspectionBall AnvilThroat DepthRepeatable Metrology

2. Curved Exhaust Pipe and Sheet Metal Stamping Inspection

Automotive exhaust pipes and curved bracket stampings undergo tensile stress during bending, causing localized thinning. The Mitutoyo 547-360A measures localized thickness on curved profiles up to a throat depth of 20 mm, allowing engineers to verify structural integrity.

Problem Solved

Eliminates the risk of catastrophic pipe failure due to over-thinned bend areas by offering quick, on-the-line inspection of curved sheet metal profiles with GO/±NG tolerance evaluation.

Exhaust Pipe BendsCurved MetalGO/±NG JudgmentLocalized ThinningAutomotive Metrology

3. Statistical Process Control in Extruded Polymer Conduit Production

In polymer conduit manufacturing, continuous SPC data logging is essential to guarantee product compliance. The 547-360A uses its bidirectional Digimatic S1 interface to export high-resolution thickness data directly into SPC software.

Problem Solved

Eliminates manual entry transcription errors, increases measurement speed via the 1.5N low-force spring-loaded trigger, and maintains constant calibration trace history over a 2,700-hour battery life.

SPC Data OutputPolymer ExtrusionDigimatic S1Data AcquisitionQuality Assurance