Riken Keiki GX-9000H Portable Multi Gas Detector – IR i-C4H10 / Dual H₂S (RKK-D2E800R2L062

Replacement for RX-8700 | Marine Approved Multi Gas Monitor

The Riken Keiki GX-9000H (RKK-D2E800R2L062) is a high-performance portable multi gas detector designed for marine, offshore, and hazardous industrial environments. Built as the direct replacement for the widely used RX-8700, this advanced model delivers enhanced reliability, improved sensing technology, and compliance with modern safety standards.

Engineered specifically for demanding applications such as tank inspection and confined space entry, this configuration combines infrared hydrocarbon detection with dual-range hydrogen sulphide monitoring, making it ideal for oil, gas, and marine operations.

Optimised for Marine & Tanker Applications

The GX-9000H is fully suited for deployment onboard vessels, with MED (Marine Equipment Directive) approval, ensuring compliance for use across EU-flagged ships and international fleets.

Its robust design and high-performance sampling pump make it particularly effective for:

• Tank entry and inspection
• Gas freeing operations
• Cargo monitoring (including hydrocarbons)
• Confined space safety procedures

Gas Detection Configuration (RKK-D2E800R2L062)

This specific model is configured to detect:

• i-C4H10 (Isobutane) – %LEL / %Vol (Infrared sensor)
• Oxygen (O₂)
• Hydrogen Sulphide (H₂S – low range)
• Hydrogen Sulphide (H₂S – high range up to 1000 ppm)

The inclusion of dual H₂S sensors allows accurate monitoring across both low-level exposure and high-concentration environments, which is critical for tanker and petrochemical applications.

Key Features & Benefits

⚓ Designed for Harsh Marine Environments

• MED approved for marine use
• Suitable for global fleet deployment
• Built for offshore and tanker operations

🔍 Advanced Infrared Gas Detection

• Reliable IR sensor for hydrocarbons (i-C4H10)
• Stable performance in inert or oxygen-deficient atmospheres
• Reduced cross-sensitivity compared to catalytic sensors

☣️ Dual H₂S Protection

• Low-range sensor for workplace exposure monitoring
• High-range sensor for extreme H₂S concentrations (up to 1000 ppm)
• Ideal for oil cargo and high-risk environments

💪 Rugged & Reliable Construction

• Intrinsically safe (ATEX / IECEx certified)
• IP66/IP68 rated for water and dust protection
• Drop-tested and built for demanding industrial use

🔋 Long Battery Performance

• Lithium-ion battery pack (BUL-9000)
• Up to 35 hours continuous operation
• Suitable for extended field use

🔧 Powerful Internal Pump

• High-performance sampling pump
• Capable of drawing samples from up to 45 metres for tank applications

Built as the Successor to the RX-8700

The GX-9000H replaces the RX-8700, offering:

• Improved durability and environmental protection
• Enhanced sensor technology
• Better data handling capabilities
• Greater flexibility for modern marine safety requirements

Data & Alarm Functions

• Audible, visual, and vibration alarms
• Gas and fault alarm notifications
• Data logging capability for compliance and reporting
• Bluetooth disabled in this configuration (BT OFF)

Technical Specifications

• Model: GX-9000H
• Part Number: RKK-D2E800R2L062
• Detection: i-C4H10 (IR), O₂, H₂S (low & high range)
• Sampling: Internal pump (suction type)
• Battery: Lithium-ion (rechargeable)
• Operating Time: Approx. 35 hours
• Ingress Protection: IP66 / IP68
• Certifications: ATEX, IECEx, MED
• Weight: Approx. 1.1–1.2 kg
• Operating Temperature: -40°C to +60°C

Applications

• Marine and offshore vessels
• Oil and chemical tankers
• Confined space entry
• Tank inspection and gas freeing
• Petrochemical and industrial safety

Riken Keiki GX-9000 Datasheet

Riken Keiki GX-9000 User Manual