SUNS DV-4P IP67 Electric Toothbrush Waterproof Tester
| Brand | SUNS |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | DV-4P Quad-Station Pneumatic Leak Tester |
| Test Pressure | 15 kPa |
| IP Rating Verified | IP67 |
| Test Stations | 4 |
| Application | Electric Toothbrush Housing Integrity & Sealing Validation |
Overview
The SUNS DV-4P IP67 Electric Toothbrush Waterproof Tester is a dedicated pneumatic leak detection system engineered for high-throughput validation of ingress protection (IP) sealing integrity in consumer-grade electric toothbrush housings. Based on differential pressure decay methodology, the instrument applies a controlled 15 kPa test pressure to the sealed toothbrush assembly and monitors minute pressure differentials over time to quantify leakage rates—directly correlating with compliance to IEC 60529 IP67 requirements (immersion at 1 m depth for 30 minutes without harmful ingress). Unlike generic air leak testers, the DV-4P integrates purpose-built fixturing, environmental compensation algorithms, and quad-station parallel testing architecture to support production-line verification while maintaining metrological traceability per ISO/IEC 17025–aligned calibration practices.
Key Features
- Quad-station concurrent testing configuration enables up to four electric toothbrush units to be evaluated simultaneously—reducing cycle time by ≥75% compared to single-station alternatives.
- Differential pressure decay measurement with temperature and atmospheric pressure compensation ensures repeatability across ambient lab conditions (20–25 °C, 45–75% RH).
- Integrated test chamber fixtures conform to common toothbrush form factors (e.g., Oral-B iO, Philips Sonicare DiamondClean, and generic cylindrical handle geometries), minimizing operator intervention and fixture changeover time.
- Programmable test sequences include pre-pressurization stabilization, pressure hold duration (adjustable 2–10 s), decay monitoring window (3–8 s), and pass/fail threshold logic—all configurable via front-panel interface or remote command protocol.
- Robust industrial-grade construction includes stainless-steel pressure manifolds, solenoid valves rated for >1 million cycles, and an embedded microcontroller with non-volatile memory for test log retention (≥10,000 records).
Sample Compatibility & Compliance
The DV-4P accommodates electric toothbrushes with sealed handle assemblies up to 250 mm in length and ≤65 mm in maximum diameter. Units must be fully assembled—including battery compartment covers, charging port seals, and button actuator gaskets—prior to testing. The system validates compliance with IP67 as defined in IEC 60529:2013, and supports internal quality protocols aligned with ISO 9001:2015 clause 8.5.1 (production control) and ISO 13845:2017 (medical device packaging integrity, where applicable). While not certified to ATEX or IECEx, the unit operates at safe low-energy pneumatic levels (<1 bar gauge) and meets CE electromagnetic compatibility (EMC) Directive 2014/30/EU requirements.
Software & Data Management
The DV-4P includes embedded firmware supporting RS-232 and optional Ethernet (TCP/IP) connectivity for integration into MES or LIMS environments. Test data exports in CSV format include timestamp, station ID, applied pressure (kPa), decay rate (Pa/s), pass/fail status, and operator ID. Audit trail functionality logs all parameter modifications, user logins, and calibration events—supporting GLP and GMP documentation needs under FDA 21 CFR Part 11 when paired with validated access controls and electronic signature workflows. Optional PC-based software (SUNS TestSuite v3.2) provides SPC charting (X̄-R, Cpk), batch reporting, and PDF certificate generation compliant with ISO/IEC 17025 clause 7.8.2.
Applications
- Final assembly line release testing of electric toothbrushes prior to packaging.
- Design verification testing during new product introduction (NPI) to correlate seal geometry changes with leakage performance.
- Supplier qualification audits for housing injection molders and gasket vendors.
- Root cause analysis of field failures linked to moisture-induced PCB corrosion or motor stator degradation.
- Process capability studies (Cp/Cpk) for sealing process stability monitoring across shifts and production lines.
FAQ
Does the DV-4P perform actual immersion testing per IP67?
No—it performs equivalent pneumatic leak testing calibrated to correlate with IP67 immersion performance. Full submersion validation remains a separate physical test; this instrument provides a rapid, non-destructive proxy with statistical equivalence verified per ISO 16269-6.
Can it test toothbrushes with active electronics powered on?
No. Devices must be powered off and disconnected from charging bases. Testing is conducted on passive mechanical assemblies only.
Is calibration traceable to national standards?
Yes. Primary pressure sensors are calibrated annually against NIST-traceable deadweight testers; calibration certificates include uncertainty budgets per ISO/IEC 17025.
What maintenance is required?
Monthly inspection of O-rings and fixture seals; quarterly verification of zero drift and pressure line integrity; annual full recalibration recommended.
