Junray ZR-3160 Multi-Parameter Vapor Recovery Testing Instrument

Overview

The Junray ZR-3160 Multi-Parameter Vapor Recovery Testing Instrument is a field-deployable, intrinsically safe diagnostic system engineered for regulatory verification of gasoline vapor recovery infrastructure at retail fueling stations. It performs three mandatory performance tests defined in China’s national emissions standard GB 20952–2020: (1) system tightness (pressure decay method), (2) liquid resistance (differential pressure across submerged fill pipe), and (3) vapor-to-liquid ratio (V/L ratio, measured via synchronized volumetric flow and liquid dispensing). Unlike generic VOC analyzers, the ZR-3160 integrates calibrated pressure transducers, precision mass flow sensors, temperature-compensated barometric reference, and active vacuum generation into a single portable platform—enabling traceable, repeatable, and audit-ready compliance testing without external instrumentation or manual calculations.

Key Features

• Intrinsically safe architecture certified to Ex ib II B T4 Gb (main unit) and Ex ib II CT5 Gb / Ex ib D21 T95°C (handheld controller), enabling operation in Zone 1/21 hazardous locations per IEC 60079 series.
• Integrated triple-parameter test sequence: automated execution of tightness, liquid resistance, and V/L ratio measurements per GB 20952–2020 Annexes A–C, with configurable pass/fail thresholds and real-time deviation alerts.
• High-brightness, sunlight-readable 7-inch industrial touchscreen controller with adjustable luminance, glove-compatible touch response, and IP65-rated enclosure.
• On-device data management: local storage of ≥10,000 test records with timestamp, geotag (GPS + BeiDou), ambient conditions (pressure, temperature, relative humidity), and operator ID.
• Embedded pressure generator and leak-check routine for pre-test instrument validation—ensuring measurement integrity prior to field deployment.
• Bluetooth 5.0 connectivity for wireless transmission to certified thermal printers (e.g., Zebra ZQ520) and secure pairing with Junray’s desktop calibration & reporting software.
• USB Type-C interface supporting firmware updates, encrypted data export (CSV/Excel), and PC-based diagnostics without proprietary drivers.
• Modular mechanical design: reinforced lightweight composite chassis with dedicated compartments for sensor modules, battery, and vapor-handling components; optional telescopic lift cart for elevated nozzle access.
• Leak-tight vapor collection interface with quick-connect couplings, integrated drip tray, and secondary containment for accidental spillage during V/L ratio sampling.

Sample Compatibility & Compliance

The ZR-3160 is designed exclusively for vapor-phase hydrocarbon testing in gasoline dispensing systems compliant with GB 20952–2020. It interfaces directly with standard Stage II vapor recovery nozzles, underground tank vent lines, and submerged fill pipes. No sample preconditioning or gas chromatographic separation is required—the instrument relies on physical parameter correlation (not compound-specific detection), making it insensitive to fuel composition variability (e.g., ethanol blends E0–E10). All measurement algorithms are traceably aligned to the metrological requirements in GB/T 16157 and JJG 534, with factory calibration documented per ISO/IEC 17025–accredited procedures. The device meets electromagnetic compatibility (EMC) Class B per GB/T 17626 and environmental stress screening per GB/T 2423.

Software & Data Management

Data acquisition and reporting conform to GLP-aligned workflows. Each test record includes digital signatures, audit trail metadata (start/end time, operator login, GPS coordinates, ambient sensor logs), and automatic calculation of uncertainty budgets based on sensor specifications and environmental compensation models. Exported datasets comply with CSV-UTF8 format for third-party LIMS integration. Optional desktop software (Junray VR Manager v3.2) supports batch report generation in bilingual (CN/EN) PDF, statistical trend analysis across station networks, and deviation root-cause tagging (e.g., “fill pipe obstruction”, “vapor line kink”). Firmware updates preserve all stored data and maintain backward compatibility with historical calibration certificates.

Applications

• Regulatory inspection by provincial ecological environment bureaus and municipal environmental monitoring centers.
• Pre-commissioning acceptance testing of newly installed or retrofitted vapor recovery systems.
• Quarterly operational verification for fuel retailers under GB 20952–2020 Article 6.3.
• Troubleshooting vapor return inefficiencies—including identification of excessive liquid resistance due to collapsed hoses or clogged carbon canisters.
• Technical training and certification programs for station technicians and third-party auditors.

FAQ

Does the ZR-3160 require annual recalibration?

Yes. Per GB 20952–2020 Clause 7.2 and JJF 1001, pressure and flow sensors must be recalibrated annually using NIST-traceable standards; Junray provides accredited on-site service or depot calibration with ISO/IEC 17025 certificate.
Can the instrument operate in rain or high-humidity outdoor environments?

The main unit and controller meet IP65 ingress protection; however, prolonged exposure to precipitation requires use of the optional weather shield kit—ambient humidity tolerance is validated up to 90% RH non-condensing.
Is GPS location data mandatory for test validity?

Per GB 20952–2020 Annex F, geotagging is required for enforcement traceability; the ZR-3160 automatically embeds WGS84 coordinates with ≤5 m CEP accuracy, and disables report generation if positioning fails.
How is data security ensured during Bluetooth transmission?

All Bluetooth sessions enforce AES-128 encryption and device-pairing authentication; no raw sensor values are broadcast—only signed, compressed test summaries are exchanged.
What maintenance is required between inspections?

Daily visual inspection of O-rings, hose integrity, and filter elements; quarterly cleaning of pressure ports with isopropyl alcohol; annual replacement of desiccant in the internal moisture trap.