Riken Keiki RX-8700 Precision 3-Gas Portable Monitor

Product Introduction

The Riken Keiki RX-8700 Precision 3-Gas Portable Monitor is a high-accuracy handheld device engineered to deliver reliable detection of hydrocarbons (HC), hydrogen sulfide (H₂S), and oxygen (O₂). Designed for demanding industrial environments, it combines advanced sensing technology with robust features to ensure safety in critical operations such as tank inspections, gas-free procedures, and tank cleaning. With its dual-range H₂S detection, auto-ranging IR HC sensor, and long-reach sampling capabilities, it stands as a trusted tool for professionals in maritime and chemical sectors.

Features

• High-precision detection of three key gases: hydrocarbons (HC), hydrogen sulfide (H₂S), and oxygen (O₂), covering essential safety hazards in industrial settings.​
• Dual-range H₂S sensor with a high range of 0 – 1,000 ppm, enabling versatile monitoring from low to high concentrations.​
• Auto-ranging IR HC sensor that transitions seamlessly from % LEL (Lower Explosive Limit) to % Vol. (Volume), providing comprehensive hydrocarbon measurement.​
• Inert monitoring functionality to support safe operations in environments with inert gases.​
• Internal sample drawing pump with an impressive 30-meter range, allowing remote sampling from hard-to-reach areas like cargo and ballast tanks.​
• Intrinsically safe design certified by ATEX, IECEx, and MED, ensuring safe use in explosive and hazardous atmospheres.​
• IP-67 rating for dust tightness and water immersion resistance, enhancing durability in harsh working conditions.​

Specifications:​

Type: Portable high-accuracy gas monitor​

Brand Name: Riken Keiki​

Model Number: RX-8700​

Detected Gases: Hydrocarbons (HC), Hydrogen Sulfide (H₂S), Oxygen (O₂)​

H₂S Detection Range: Dual range, including 0 – 1,000 ppm (high range)​

HC Sensor: Auto-ranging IR, covering % LEL to % Vol.​

Sampling Pump: Internal with 30-meter range​

Certifications: ATEX, IECEx, MED (intrinsically safe)​

Protection Rating: IP-67​

Applications: Crude Oil Carriers, Bulk Carriers, Chemical Tankers, Cargo and Ballast tanks, HC measurement during gas free and tank cleaning processes

Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of  measuring instruments , located in China xi’an City. Since 2008, Xi'an Kacise focused on the development and production of pressure, level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical and management personnel, through efforts of our entire staff, we have become a professional measuring instrument manufacturer and solution provider. And we are continuously trying to improve product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE, intrinsic safety explosion-proof and isolated safety explosion-proof certificates, etc. which ensure that our products comply with international standards.

Kacise sensors have already been exported to America, Spain, Australia, Chile and 20 other countries and regions, and received many favorable feedbacks. Our overseas distributers are also increasing. We regard “reasonable prices, efficient production time and good after-sales service” as our tenet, and hope to cooperate with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices, and provides industry-leading customer service. We personally get to know each of our customers, and we know how to discover the most valuable part of our business , to help others achieve their goals.