Hitachi Original SPR4 Calibration Standard

Name: Hitachi Original SPR4 Calibration Standard
Brand: Welltronics Technology Limited
Rating: 4.2 (42 reviews)

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Product Overview

Hitachi Original SPR4 Calibration Standard (also called Cmi700 Calibration Standard) is a core precision accessory for Hitachi’s CMI series PCB Cooper Thickness Testers. Specifically designed for CMI700 Cu Thickness Tester and CMI165 Surface Cu Thickness Tester, it serves as a "reference benchmark" to calibrate the testing accuracy of these gauges—critical for ensuring reliable surface copper thickness data in PCB production. Crafted from high-purity copper with strict thickness uniformity, this Calibration Standard Plate eliminates measurement deviations caused by gauge drift over time. As part of our one-stop PCB testing solutions, it seamlessly matches products like SRP-4 probe (for surface testing), Cmi165 Tips (replaceable probe tips), and Nylon Brush (for standard plate cleaning), providing comprehensive support for PCB quality control.

Technical Specifications

Brand: Hitachi (Oxford)
Product Name: Original SPR4 Calibration Standard (Surface Copper Calibration Standard Plate)
Compatible Gauges: CMI700 Cu Thickness Tester, CMI165 Surface Cu Thickness Tester
Core Material: High-purity electrolytic copper (purity ≥99.99%)
Thickness Uniformity: ±0.1 μm (ensures consistent calibration across the plate surface)
Calibration Accuracy: Traceable to international metrology standards (guarantees alignment with global testing norms)
Dimensions: Standard 50mm×50mm (compact size for easy storage and on-site use)
Surface Treatment: Anti-oxidation coating (prevents copper tarnishing, extending service life)
Packaging: Anti-static PP Sheet wrapping + hard plastic case (avoids damage during transportation/storage)
Min. Order: 1 Piece
Payment Type: T/T, Paypal (consistent with our other testing accessories)
Incoterm: EXW (flexible for global logistics)
Transportation: Express, Air (fast delivery to minimize gauge downtime)

Product Features

Original-Grade Compatibility: 100% matched to Hitachi CMI700 and CMI165 gauges, avoiding calibration errors from third-party standards that may not align with Hitachi’s sensor parameters.
Rapid Calibration: Enables gauge calibration in 2–3 minutes (vs. 10+ minutes with non-specialized standards), minimizing downtime for production line testing—critical for high-volume PCB factories.
Long-Term Stability: High-purity copper and anti-oxidation coating ensure stable thickness values for 2+ years (under proper storage), reducing frequent replacement costs.
Traceable Accuracy: Calibration values are traceable to international metrology institutions (e.g., NIST), ensuring compliance with PCB industry quality standards (e.g., IPC-A-600).
User-Friendly Design: Compact size and clear thickness marking (on the plate surface) make it easy for on-site operators to use, no professional metrology training required.

How to Use the Product

Preparation: Remove the SPR4 Calibration Standard from its hard case, and clean the plate surface with a Nylon Brush (to remove dust or oil—contaminants affect calibration accuracy).
Gauge Setup: Turn on the CMI700 or CMI165 gauge, connect the SRP-4 probe (or install Cmi165 Tips if using CMI165), and enter the "calibration mode" via the gauge menu.
Calibration Execution: Place the standard plate on a flat, stable surface, align the gauge probe with the center of the plate, and follow the gauge prompts to complete 3–5 calibration readings.
Verification: After calibration, the gauge will display "pass" if values match the standard; if not, re-clean the plate and repeat the process (ensures no operational errors).
Storage: Wipe the plate with the Nylon Brush again, wrap it in anti-static PP Sheet, and store it in the hard case—keep in a dry, cool environment (avoid high humidity or direct sunlight).

Application Scenarios

Daily Gauge Calibration: Used by PCB factories to calibrate CMI700/CMI165 gauges at the start of each shift, ensuring accurate testing of incoming copper foil or post-processed PCBs.
Post-Maintenance Calibration: After replacing SRP-4 Tips or servicing CMI gauges, the standard plate re-establishes gauge accuracy—critical for avoiding defective products due to uncalibrated equipment.
Batch Testing Validation: When switching between different PCB copper thickness ranges (e.g., from 1 μm to 10 μm), the standard verifies gauge consistency, ensuring reliable data across batches.
Third-Party Audits: Provided to auditors during quality inspections, proving that in-house testing data is traceable to international standards—enhancing customer trust.

Value for Purchasers

Reduce Defect Rates: Accurate gauge calibration via the SPR4 standard cuts PCB testing errors by 40%, avoiding losses from misjudging copper thickness (e.g., rejecting qualified foils or accepting defective ones).
Lower Operational Costs: Rapid calibration saves labor time; long service life reduces replacement frequency—total cost of ownership is 30% lower than using third-party standards.
Ensure Compliance: Traceable accuracy helps factories meet global PCB customer requirements (e.g., automotive or aerospace clients with strict quality norms).
Simplify Inventory: Compatible with two key CMI gauges (CMI700/CMI165), eliminating the need to stock multiple calibration standards—streamlining inventory management.

Certifications and Compliance

The Hitachi SPR4 Calibration Standard complies with RoHS and REACH regulations (no hazardous substances), ensuring safe use in global manufacturing facilities. It also meets IPC/JEDEC standards for PCB testing accessories, and each unit comes with a calibration certificate (valid for 2 years) that confirms traceability to international metrology standards.

Production Process

The SPR4 Calibration Standard is manufactured in Hitachi’s specialized metrology facility via strict processes:

Material Selection: High-purity electrolytic copper ingots (purity ≥99.99%) are screened to ensure no impurities that affect thickness uniformity.
Precision Machining: CNC grinding machines process the copper into standard thickness (with ±0.1 μm tolerance), ensuring flatness across the plate.
Anti-Oxidation Treatment: The plate undergoes electroplating with a thin protective layer, preventing tarnishing and corrosion.
Accuracy Testing: Each plate is tested with a laser interferometer (traceable to NIST) to verify thickness, and only those meeting ±0.1 μm uniformity are approved.
Certification & Packaging: A calibration certificate is issued for each unit, and the plate is packed in anti-static materials to ensure no damage during shipping.

FAQ

Q1: Can this standard be used for CMI500 gauges?

A1: No—it’s specialized for CMI700 (surface/hole) and CMI165 (surface) gauges. For CMI500 (hole copper testing), please use our Cmi500 Calibration Standard.

Q2: How often should the standard itself be re-calibrated?

A2: We recommend re-verification every 2 years (per industry norms); we offer professional re-calibration services for expired standards.

Q3: What if the standard plate gets scratched?

A3: Minor scratches (≤0.05 μm depth) won’t affect calibration; for deep scratches, replace the standard (scratches alter thickness, leading to wrong calibration).

Q4: Is it compatible with third-party SRP-4 probes?

A4: It works best with original Hitachi SRP-4 probes; third-party probes may have different sensor sensitivity, leading to calibration inconsistencies.

Q5: How to store the standard to extend its life?

A5: Keep it in the original hard case (with anti-static PP Sheet) in a dry environment (RH 30–60%) and avoid direct contact with bare hands (oils cause tarnishing).