Hitachi CMI700 ETP probe Overview

The Hitachi Cmi700 ETP Probe (also known as Oxford ETP Probe) is a premium high-precision sensor component from Hitachi (Oxford), originating from the United States. As a core part of Hitachi’s CMI500 series advanced measurement equipment, it works seamlessly with CMI500 and CMI700 gauges. Adopting advanced materials and precision manufacturing processes, this PTH Hole ETP Probe boasts exceptional sensitivity and accurate measurement capabilities, easily penetrating complex hole structures to obtain precise copper layer thickness data. It perfectly complements our company’s other detection products like the SRP-4 probe and PCB Cooper Thickness Tester, forming a comprehensive thickness detection solution for the electronics manufacturing industry.

2. Core Functionality: How the ETP Probe Works

The ETP probe operates on the principle of eddy-current induction. When the probe tip is inserted into a hole, it generates an electromagnetic field that induces eddy currents in the copper plating. The probe then measures the impedance change caused by these currents, which is directly proportional to the thickness of the copper.

Key Technical Advantages:

Surface Independent: The hole copper thickness probe is uniquely designed to ignore surface copper, focusing exclusively on the barrel of the hole. This is vital for boards where Circuit Board Plating may vary between the surface and the hole.
Measurement Range: Typically measures copper from 0.08 to 4.0 mils (2 to 100 μm).
Hole Size Compatibility: Available in various sizes, such as the ETP-1, to accommodate hole diameters as small as 31 mils (0.8 mm).
Substrate Versatility: Works effectively on double-sided and Multi-Layer Coating boards, ensuring High Precision Thickness readings across different laminate types.
Technical Specifications
Brand: Hitachi (Oxford)
Model: ETP Probe (compatible with CMI500/CMI700 gauges)
Place of Origin: United States
Core Function: High-precision detection of hole copper thickness
Min. Order Quantity: 1 Piece
Payment Terms: T/T, Paypal
Incoterms: FOB, CIF, EXW, FCA, DDP
Transportation Modes: Ocean, Land, Air, Express
Port of Shipment: Shenzhen
Packaging Type: Individual packing by PE film

Product Features (Product Features and Advantages)

Superior Measurement Performance: With high sensitivity and accuracy, it can detect copper thickness at different positions in holes, even for complex structures like blind holes and buried holes, ensuring data reliability.

Premium Build Quality: Made of advanced materials and manufactured via precision processes, it has strong durability, reducing replacement frequency and lowering long-term use costs.

Wide Compatibility: Specifically designed for CMI500/CMI700 gauges, it achieves seamless connection with the host, avoiding compatibility issues.

Industry-Certified Reliability: Compliant with industry quality standards, it works stably in harsh production environments such as PCB electroplating workshops.

Cost-Effective Solution: Compared with similar products, it offers higher performance at a competitive price, and when used with our Nylon brush for daily cleaning, it extends service life further.

How to Use the Product (Step-by-Step Guide)

Installation: Connect the ETP Probe to the CMI500/CMI700 gauge host according to the equipment manual, ensuring a firm and stable connection.

Calibration: Before use, calibrate the probe with a standard copper thickness sample to ensure measurement accuracy.

Detection Preparation: Clean the surface of the circuit board or component to be tested, removing dust and residue that may affect measurement results.

Measurement: Align the probe with the hole to be detected, start the host, and wait for the device to display the copper thickness data.

Data Recording: Record the measurement results, and turn off the equipment after use, then clean and store the probe properly.

Application Scenarios

PCB Manufacturing: In the production of multilayer boards, blind hole boards, and buried hole boards, it detects hole copper thickness on production lines, ensuring each circuit board meets design requirements, which is crucial for maintaining the electrical performance and reliability of PCBs.

Electronic Component Packaging: It detects the copper thickness of pin holes on package substrates, ensuring good electrical connection between pins and substrates, improving component packaging quality and reliability.

PCB Maintenance and Testing: Used in third-party testing institutions or PCB maintenance workshops to test the hole copper thickness of old or repaired PCBs, providing data support for maintenance decisions.