Riken Keiki RX-8700 Multigas Monitor. Designed for Crude Oil Tankers

RIKEN RX-8700 0-100%LEL / 0-100% VOL HC / 0-25% O2 / 0-100PPM H2S / 0-1,000PPM H2S


Dual range detection HC in %VOL and %LEL

The RX-8700 is designed specifically for Crude Oil Tankers. It uses an IR sensor to measure hydrocarbon vapours over two ranges; 0 – 100% LEL and 0 – 100% volume. The Oxygen measurement range is 0-40% Volume using a Galvanic Sensor. The RX-8700 will also measure Hydrogen Sulphide (H2S), using an Electro-Chemical cell, over a 0-1000ppm range.

Auto-ranging Technology :
The RX-8700 has accurate measurement over the entire range of target hydrocarbons up to 100% by volume. Users benefit from dual auto-ranging technology that allows the instruments to automatically switch from a 0 – 100% LEL to a 0 – 100% volume range.

The RX-8700 has an internal pump that samples at 750ml per minute. The RX8700 has a clear and intuitive digital display. The Instruments are explosion and intrinsically safe and are ATEX as well as MED approved.

The RX-8700 has a compact and lightweight but very robust design. They are powered by a Lithium Ion battery pack. This gives over 15 hours of continuous operation as well as being quick to charge.

The RX-8700 has additional features that include Pilot and pump driving indicator, activating confirmation beep (1 minute intervals) and Bump Test function. Users have IrDA communications and Password Protection also available. Data logger software is available as an option.


Crude Oil Tanker storage tank gas monitoring

Oil storage depots

Tank Farms


Petrochemical plants

Product description


Unit Price

Technical Information

  • Sampling Rate Minimum 0.75L/min
  • Display Digital LCD ( 7 segment + sign + bar display )
  • Power Supply Lithium-Ion Battery ( Standard ) Alkaline battery ( AA Alkaline battery x 3 ) ( option)
  • Continuous operation Li-ion battery : Longer than 15 hours ( full charge, no alarm, no light at 25 Deg C AA Battery Unit : Longer than 8 hours ( new battery , no alarm, no light at 25 Deg C
  • Operating temp and Humidity -20-+50 deg C , below 85% RH ( Non-condensing )
  • Dimensions Approx 154(W) x 81(H) x 163(D) mm
  • Weight Approx 1.3kg ( Lithium battery type , 1.2kg Alkaline battery type
  • Ingress proof rating Equivalent to IP67
  • Explosion Proof Intrinsically safe (Ex ia II CT4) ( ATEX/IECEx)
  • Approvals ATEX/IECDx . TIIS . MED ( Pending )
  • Other Functions LCD backlight , Datalogger , Log data , Peak Hold , Pump stop function
  • Transmission method IrDA for Datalogger