| Product Configuration | Integrated contact probe, stylus, mounting hardware, signal interface, and protective housing. | Configuration should match the machine tool, controller interface, stylus geometry, and available installation space. | Review dimensional drawings, wiring diagrams, interface specifications, and installation samples. |
| Repeatability | Precision switching mechanism with controlled contact force and stable return characteristics. | Typical high-precision tool-setting systems specify repeatability in the range of approximately 1–5 µm, depending on test conditions and model design. | Conduct repeated approach-and-return tests using a calibrated reference tool under controlled temperature conditions. |
| Switching Mechanism | Mechanical contact assembly designed for repeated tool or cutter measurement cycles. | Stable switching signal with minimal contact bounce and consistent trigger behavior throughout the rated service life. | Measure trigger-point distribution, contact bounce, and signal stability over repeated cycles. |
| Probe Contact Force | Low and controlled contact force to reduce tool deflection and measurement influence. | The specified force should be documented by direction and measurement condition; lower force is generally preferred for delicate or small-diameter tools. | Use a calibrated force gauge to measure triggering force in the relevant approach directions. |
| Structural Materials | Machined or molded housing combined with corrosion-resistant metal components and hardened contact parts. | Materials should provide dimensional stability, resistance to cutting fluids, and adequate wear resistance for the intended machine environment. | Check material certificates, surface-treatment records, hardness reports, and corrosion-resistance documentation. |
| Ingress Protection | Sealed housing, protected cable entry, and shielding against coolant, chips, and machining debris. | IP54 provides protection against limited dust ingress and water splashes; IP65 provides dust-tight protection and resistance to low-pressure water jets when properly tested. | Request an ingress-protection test report based on IEC 60529 or an equivalent recognized standard. |
| Cable and Connector Reliability | Industrial cable assembly with strain relief, abrasion resistance, and secure connector termination. | Cable construction should be suitable for coolant exposure, repeated flexing, and the machine’s routing requirements. | Inspect cable specifications, bend-cycle results, insulation resistance, continuity, and connector retention. |
| Dimensional Accuracy | CNC machining, controlled assembly fixtures, and final dimensional inspection. | Critical mounting, reference, and stylus locations should be controlled according to the approved engineering drawing and tolerance scheme. | Use calibrated coordinate-measuring equipment, gauges, or optical measurement systems with traceable records. |
| Temperature Stability | Material selection and mechanical design intended to limit thermal drift during normal machine operation. | Performance limits should be stated across the declared operating range; common industrial electronics ranges include approximately 0–50°C, depending on design. | Perform repeatability and switching tests at defined low, room, and high operating temperatures. |
| Electrical Compatibility | Interface designed for machine-tool probing circuits, controller inputs, or dedicated signal-conditioning equipment. | Supply voltage, switching current, output type, polarity, and protection requirements must be compatible with the target control system. | Review electrical schematics and test voltage, current, insulation resistance, and output response under load. |
| Calibration Capability | Reference artifacts, inspection fixtures, and documented calibration procedures for critical measurement characteristics. | Calibration records should identify equipment, method, environmental conditions, acceptance limits, operator, and calibration due date. | Audit calibration certificates and confirm traceability to national or international measurement standards. |
| Quality Management | Documented procedures covering design control, purchasing, production, inspection, nonconformance, and corrective action. | An ISO 9001-certified quality management system is a widely recognized baseline for controlled manufacturing processes. | Review the valid certificate, scope, issuing body, audit status, and process documentation. |
| Inspection Equipment | Use of calibrated micrometers, height gauges, vision systems, force gauges, electrical testers, and coordinate-measuring equipment. | Inspection equipment should be suitable for the required tolerance and maintained under a documented calibration system. | Check equipment lists, calibration labels, certificates, uncertainty statements, and inspection records. |
| Reliability Testing | Life-cycle testing, repeated switching, cable movement tests, environmental exposure, and post-test accuracy inspection. | Test cycles and acceptance limits should be defined according to the product’s intended duty cycle and operating environment. | Request test plans, cycle counts, failure criteria, raw data, and final inspection results. |
| Traceability | Unique serial numbers or lot codes linked to incoming materials, production batches, inspection results, and shipment records. | Each finished unit should be traceable to its manufacturing date, inspection status, configuration, and applicable revision level. | Perform a sample traceability exercise from finished product back to components and inspection records. |
| Change Management | Formal engineering-change process for materials, dimensions, firmware, suppliers, tooling, and production methods. | Changes affecting fit, function, interchangeability, or performance should receive documented technical review and customer notification when applicable. | Review change notices, revision histories, approval records, and validation results. |
| Packaging and Shipment | Protective caps, anti-static or moisture-control packaging where required, impact protection, and labeled documentation. | Packaging should prevent connector damage, stylus deformation, corrosion, and movement during ordinary transport and storage. | Inspect packaging design, transit-test results, labeling, packing lists, and storage instructions. |
| Technical Documentation | Installation drawings, wiring diagrams, operating instructions, maintenance guidance, and inspection specifications. | Documents should state operating limits, mounting requirements, electrical parameters, measurement direction, and troubleshooting procedures. | Check document revision control, completeness, language accuracy, and consistency with the delivered product. |