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Photoelectron Spectrometer
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Riken Keiki Co., Ltd.

Home | Fixed Systems | Direct Connect Sensors
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LEL / H2 / O2 / CO / H2S Direct Connect Sensors

"S" Series Transmitter (9K jpg)Features
  • Explosion proof housing available
  • Water repellent patented sensor coating
  • Available for LEL, H2, O2, CO, and H2S
  • Long life sensors (2 + years typical)

Applications

  • Petrochemical plants
  • Refineries
  • Gas plants
  • Offshore drilling platforms
  • Water & wastewater treatment plants
  • Pulp & paper mills
  • Gas, telephone, & electric utilities
  • Parking garages
  • Manufacturing facilities
  • Steel
  • Automotive

The RKI direct connect series gas sensors are highly reliable and very cost effective for the detection of common gas hazards. The direct connect series are available for LEL, H2 Specific LEL, Oxygen, H2S, and CO for a variety of RKI's controllers. All sensors are explosion-proof with flame arrestors, and approved (optional non-explosion proof version available for oxygen for use in hazardous atmospheres).

The direct connect sensors can be used in two different ways. The sensors can be mounted directly to the controllers as a complete stand alone system, or they can be mounted to explosion proof junction boxes for remote detection.

The direct connect sensors can be used either indoors or outdoors. The flame arrestors for the explosion-proof versions utilize a patented coating which make them water repellent. Also, splash guards are available for use in very wet environments.

All of the direct connect sensors are designed to specifically interface with RKI controllers.



LEL LEL H2 LEL Infrared O2 CO H2S
CH4 HC
Sensor With J-Box
61-1000RK (UL)
61-1006RK-05 (CSA)
61-1001RK
61-1003RK-CH4
61-1003RK-HC
65-2512RK (non xp)
65-2515RK (xp)
65-2437RK-05
65-2427RK-05
Sensor Only
61-0140RK (UL)
61-0140RK-05 (CSA)
NC-6234-01
61-0190RK-CH4
61-0190RK-HC
65-2511RK (non xp)
65-2514RK (xp)
65-2433RK-05
65-2423RK-05
Measuring Range
0-100% LEL
0-100% LEL
0-100% LEL
0-25% Vol.
0-300 ppm
0-100 ppm
Response Time
30 seconds to 90%
20 seconds to 90%
30 seconds to 90%
20 seconds to 90%
1 second to 90%
Operating Environment
Location
Indoor or outdoor. Explosion proof (optional for O2) for Class I, Div. 1, Groups B, C, and D atmospheres.
Temperature
-40 to 185° F
0 ~ 120° F
30 to 120° F
0 ~ 120° F
Humidity
0-99% RH, non condensing
Housing
Housing J-Box
Cast aluminum, explosion-proof, epoxy coated
Sensor
Stainless steel
Stainless steel (xp) Plastic (non xp)
Stainless steel
Sensor
Type
Catalytic
Infrared
Galvanic cell
Electrochemical
Life Expectancy
1 to 2 years with
normal intermittent
exposure to
flammable gas
3 years with
normal intermittent
exposure to H2
3-5 years normal service
2 years normal
service
2 to 3 years normal service
Controllers
Beacon 100
X X
X
X
X
X
X
Beacon 200
X X
X
X
X
X
X
Pioneer 4W
X X
X
X
X
-
-
Approvals
UL or CSA UL C / UL / US CSA NRTL (optional for O2)
Warranty
One year materials and workmanship

* Specifications subject to change without notice
Made in the USA
Toll Free: (800) 754-5165 | Phone: (510) 441-5656 | 33248 Central Ave, Union City, CA 94587
Copyright © 2007 RKI Instruments, Inc.  All Rights Reserved