Junray ZR-3160 Multi-Parameter Vapor Recovery Testing Instrument for Liquid Resistance, Vapor-to-Liquid Ratio, and System Tightness

Overview

The Junray ZR-3160 Multi-Parameter Vapor Recovery Testing Instrument is an engineered solution for regulatory compliance verification of Stage II vapor recovery systems at retail gasoline dispensing facilities. Designed in strict accordance with GB 20952–2020 Emision Standard of Atmospheric Pollutants from Gasoline Filling Stations and DB11/208–2023 Vapor Emission Control and Limit Values for Gasoline Filling Stations, the ZR-3160 performs three mandatory functional tests: liquid resistance (pressure drop across submerged fill pipes), vapor-to-liquid ratio (V/L), and system tightness (leak detection via pressure decay). Its measurement architecture integrates differential pressure transducers calibrated to ±2% full-scale accuracy, precision volumetric flow sensors, and real-time pressure stabilization control—enabling traceable, repeatable field assessments under variable ambient conditions. Unlike generic VOC analyzers, the ZR-3160 operates as a dedicated process verification tool—not a concentration monitor—but rather a functional integrity tester that validates the mechanical and pneumatic performance of vapor collection networks, underground piping, and vapor return manifolds.

Key Features

• Triple-parameter validation: Simultaneous or sequential execution of liquid resistance, vapor-to-liquid ratio, and system tightness tests per GB 20952–2020 Annexes A–C.
• Intrinsically safe design: Host unit certified to Ex ib II B T4 Gb; handheld controller rated Ex ib II CT5 Gb / Ex ib D21 T95°C—fully compliant for operation within Zone 1 and Zone 21 hazardous areas.
• Field-optimized human interface: High-brightness, anti-glare industrial touchscreen with adjustable luminance; ruggedized housing constructed from lightweight yet impact-resistant polymer composite.
• Autonomous operation: Integrated 12 V rechargeable Li-ion battery enables >8 hours continuous testing without external power; optional 4G LTE + BeiDou GNSS module supports geotagged, time-synchronized data transmission to central environmental monitoring platforms.
• Secure data lifecycle management: On-device encrypted storage (AES-256), tamper-evident thermal printing with QR-coded authentication, and immutable audit log capturing instrument status, calibration events, operator ID, test sequence, and environmental metadata.
• Smart workflow assistance: Embedded algorithm-guided prompts reduce operator dependency on procedural manuals; automatic pass/fail judgment against GB 20952–2020 thresholds with visual and audible alerts.

Sample Compatibility & Compliance

The ZR-3160 is specifically validated for use with standard gasoline dispensing infrastructure—including submerged fill pipes (typically 38 mm or 50 mm nominal diameter), vapor recovery hoses (up to 10 m length), and sealed underground tank configurations. It does not require gas chromatographic separation or photoionization detection; instead, it assesses system hydraulics and pneumatic integrity using calibrated pressure and volumetric flow physics. All test protocols align with statutory requirements for environmental impact assessment (EIA), engineering design validation, commissioning acceptance, and periodic operational monitoring. The instrument meets electromagnetic compatibility (EMC) Class B requirements per GB/T 17626 series and fulfills data integrity prerequisites for GLP-aligned environmental inspection records. Its firmware and calibration certificate traceability support regulatory audits under China’s Ministry of Ecology and Environment (MEE) enforcement framework.

Software & Data Management

Firmware v3.2+ implements role-based access control (RBAC) with operator, supervisor, and administrator privilege tiers. Test reports are generated in PDF/A-1b format with embedded digital signatures and cryptographic hash verification. Data export supports CSV, XML, and proprietary .JRD binary formats via USB Type-C or Bluetooth 5.0. The onboard database retains ≥10,000 test records with timestamp, GPS coordinates, ambient temperature/humidity, and operator credentials. Remote platform integration follows RESTful API specifications compliant with China’s national environmental data exchange standards (HJ 212–2017). Audit trails comply with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available), satisfying internal quality assurance and third-party certification body requirements.

Applications

• Pre-commissioning verification of newly installed vapor recovery systems prior to regulatory acceptance.
• Routine quarterly or semiannual maintenance checks mandated under GB 20952–2020 Section 5.3.
• Root-cause diagnostics during elevated hydrocarbon emission incidents or vapor detector alarms.
• Third-party environmental compliance auditing for petroleum retailers and provincial ecological supervision bureaus.
• Technical training and competency assessment for station operators and environmental technicians.
• Baseline establishment during environmental impact assessments (EIAs) for new fueling facility development.

FAQ

Does the ZR-3160 measure VOC concentration levels?
No. It does not quantify gaseous hydrocarbon concentrations. It evaluates mechanical functionality—specifically pressure loss, vapor displacement volume relative to liquid throughput, and system leakage rate.
Is calibration traceable to national metrological standards?
Yes. Factory calibration uses NIM (National Institute of Metrology, China)-certified pressure and flow standards; field recalibration kits include documented uncertainty budgets per JJF 1094–2002.
Can test data be integrated into municipal environmental monitoring platforms?
Yes. Via 4G LTE, the instrument supports HJ 212–2017 protocol-based data submission to provincial MEE cloud platforms.
What is the maximum allowable ambient temperature for operation?
The host operates from –10 °C to +50 °C; the handheld controller is rated for –20 °C to +60 °C per its Ex ib D21 T95°C classification.
How is data integrity ensured during regulatory inspection?
Through hardware-enforced write-once memory, cryptographic report signing, and synchronized BeiDou time-stamping—preventing post-hoc modification or falsification.