Brandt Instuments Representing Otis Instruments Fixed Gas Detection Systems, wired and wireless
                    Brandt Instruments Representing Otis Instruments

Otis Instruments Gas Detection Systems Logo

Otis Instruments OI-6000K
Single Channel Fixed Gas Detection System

home otis instruments fixed point detectors OI-6000K Otis Instruments Single Channel Fixed Gas Detection



Otis Instruments OI-6000K Non Exploxion-Proof Single Gas Fixed Gas Detction System

OI-6000K Single Strobe
Integrally Mounted Sensor

With TriLite LED Alarm (Left) , Red Strobe Alarm (Right)



Otis Instruments OI-6000K Twin Red & Amber Strobes with Remote Sensor

Twin Red & Amber Strobes
& Remote Sensor Kit


Otis Instruments OI-6000K fixed gas non explosion-proof detector provides single point protection in less than 5 minutes – just plug it in, check the calibration and be protected! The OI-6000K can be used as a stand alone self contained monitor, use with a remote sensing head or be part of a transmitter in a larger system. An explosion-proof remote sensor head can be added.

OI-6000K systems are designed to provide continuous monitoring for a variety of common atmospheric hazards including oxygen deficiency and/or enrichment, combustible gases and vapors, and specific toxic contaminants such as:

Ammonia (NH3) Formaldehyde (CH2O) Oxygen (O2)
Carbon monoxide (CO) Hydrogen Cyanide (HCN) Ozone (O2)
Chlorine (Cl2) Hydrogen Fluoride (HF) Sulfur dioxide (SO2)
Combustible gas (LEL) Hydrogen Sulfide (H2S) Phosphine (PH3)
Fluorine (F2) Nitrogen Dioxide (NO2) PID sensor for VOC detection & many others

Available with Electro-Chemical (EC), Catalytic Bead, PID or Infrared (IR) sensor elements. Sensors may be integrally mounted to the controller housing, or linked by wire or wirelessly with a WireFree™ system to the controller.    

Best of all, the the OI-6000K offers the flexibility to choose a single color strobe, such as a red strobe, or the Tri-Lite multi-color LED (Green/Amber/Red) alarm. The advantage of the Tri-Lite is that it displays a green light when operating normally and changes to amber then red when alarming. Also includes an integrated 102 db audio alarm,and a real time LCD readout…..all in a tough NEMA 4X housing.

OI-6000K Technical Specifications

Case Stahlin fiberglass with clear window, wall mount, non explosion-proof.
Note: Type 4X enclosures are intended for indoor and outdoor use primarily to provide a degree of protection against corrosion, windblown dust and rain, splashing water, and hose-directed water; and to be undamaged by the formation of ice on the enclosure.
UL/cUL 50
NEMA 250
CSA Std. C22.2
IEC 60529
File E64358 Type 1, 3, 3s, 4X, 12, 13
Type 1, 3, 3s, 4X, 12, 13
File LR069014 Type 1, 3, 3s, 4X, 12, 13
Sensor Types Electro-chemical, catalytic bead, PID or Infrared.
Display Graphical LCD, sunlight readable
LED back-light, 102 x 64 resolution
Flammability Rating UL94-5V
Window Temperature Range (-26F to +170F) (-32C to +76C)
Window Flammability UL94-HB
Self Extinguishing Non-halogenated, non-flame propagating
Interface Three push buttons (MENU, ADD, SUB)
Dimensions Controller: 8" x 8" x 4"
Weight 5.5 - 6.0 lbs (Varies by options selected)
Power +12-35 Volts DC (with terminal connectors for the DC wires on the circuit board)
110/240 Volts AC (with cord grips and cable)
Power Source 110/220 VAC or 12-24 VDC.
Current Draw 1.25 A (max @ 24 VDC)
Relays 5 Amp relays with 4 Amp fuses
Signal Output 4-20 mA; RS-485 Modbus. Can be customized to offer relay and radio (900MHz or 2.4GHz) options.
Temperature Range (-76F to +274F) (-60C to +134C)
Wiring: Comes standard with cord grips and cable. Optional AC power cord
Order cables for remote sensor housing from 10' to 100'.
Warranty Hardware: One year (Limited)
Sensor: varies with sensor type

Each OI-6000K system includes the controller with all standard alarms, relays and electronics installed in a non explosion-proof fiberglass housing, and sensor. Custom configurations & wireless systems are available.

Note: Cable, conduit, wire and other components necessary to connect remotely located sensors with the instrument controller are not included. Order the cable separately

Otis OI-6000K Data Sheet

   OI-6000K Manual



OI-6000 System Ordering Information

OI-6000K System

OI-6000K System
OI-6000K-EC-O2-AC-NXP-R O2 Oxygen 0 - 25% 0.1 %
OI-6000K-CB2-LEL-AC-NXP-R LEL combustible 0 - 100% LEL 1.0 % LEL
OI-6000K-IR-LEL-AC-NXP-R LEL combustible 0 - 100% LEL 1.0 % LEL
OI-6000K-EC-CO-AC-NXP-R CO, Carbon monoxide 0 - 1000 ppm 1.0 ppm
OI-6000K-EC-H2S-AC-NXP-R H2S, Hydrogen sulfide 0 - 200 ppm 1.0 ppm
OI-6000K-EC-NH3-AC-NXP-R NH3, Ammonia 0 - 100 ppm 1.0 ppm
OI-6000K-EC-Cl2-AC-NXP-R Cl2, Chlorine 0 - 50 ppm 0.1 ppm
OI-6000K-EC-SO2-AC-NXP-R SO2, Sulfur dioxide 0 - 75 ppm 0.1 ppm
OI-6000K-EC-PH3-AC-NXP-R PH3, Phosphine 0 - 20 ppm 0.1 ppm

Note - For Additional Configurations See Sensor List Below:

-AC-NXP-R Use "R" for red strobe, "A" for amber strobe or "G" for green. For instance GAR would be a multi-strobe configuration where the strobe changes from green to amber and then red in alarm.

** Cable for Remote Sensor is ordered separately.

NOTE: If the sensor is mounted in a potentially explosive environment, sensor must be connected to the base unit following NEC guidelines for hazardous locations.

OI-102WEP-X Explosion-Proof Horn

OI-102WEP-X Explosion-Proof Horn

OI-RGA-Kit TriLite LED Alarm Light


5 or 7-Pin Remote Sensor Kit

5-Pin Remote Explosion- Proof Sensor Kit

Remote Sensor Kit Data Sheet

OI-501-NXP Remote non-explosion proof remote sensor kit

Remote NXP Sensor Kit Data Sheet

The remote sensor kits have been tested for use up to 250 feet from the controller. Distance is sensor dependent. Call for information on application and sensor type.

For additional accessories and options go to the Accessories page

  Otis Instruments OI-6000K Replacement Sensors

Part # Description Range Resolution
OI-254-O2 O2, Oxygen 0 - 25% vol 0.1%
± 2%
OI-2018-SB-CB2 LEL, Combustible Gas
(Catalytic Bead) (OI-6000 only)
0 - 100% LEL 1.0% Increments
OI-140-IR-LEL LEL, Combustible Gas (Infrared)
(OI_6000 only)
0 - 100% LEL 1.0% Increments
± 2%
OI-254-CO CO, Carbon Monoxide 0 - 1000 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 2%
OI-140-IR-CO2 CO2, Carbon Dioxide
(OI-6000 only)
0 - 5% vol 0.1 ppm
± 2%
OI-254-H2S H2S,  Hydrogen Sulfide 0 - 100 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 2%
OI-254-H2S-2K H2S, Hydrogen Sulfide (Ext.Temp) 0 - 2000 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 2%
OI-254-NH3 NH3, Ammonia 0 - 100 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 5%
OI-254-NH3A-N NH3, Ammonia (Ext) 0 - 1000 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 5%
OI-254-Cl2 Cl2, Chlorine 0 - 10 ppm 0.1 ppm
± 5%
OI-254-F2 F2, Florine (Call for availability) 0-1 ppm 0.01 ppm
± 5%
OI-254-CH2O CH2O, Formaldeyde 0-10 ppm 0.01 ppm
± 2%
OI-254-H2 H2, Hydrogen 0- 4% vol 0.1 ppm
± 10%
OI-254-HCL-A HCL, Hydrogen Chloride 0- 100 ppm 0.1 ppm
± 5%
OI-254-HCN-2 HCN, Hydrogen Cyanide 0- 100 ppm 0.1 ppm
± 5%
OI-254-HF HF, Hydrogen Floride 0 - 10 ppm 0.1 ppm
± 10%
OI-254-NO2-N NO2, Nitrogen Dioxide 0-50 ppm 0.1 ppm
± 5%
OI-254-O3 O3, Ozone 0-100 ppm .1 to 10 ppm, 1 ppm thereafter
± 2%
OI-254-SO2 SO2, Sulfur Dioxide 0 - 20 ppm .1 to 10 ppm, 1 ppm thereafter
± 2%
OI-254-PH3-5-5 PH3, Phosphine 0 - 5 ppm 0.1 ppm
± 2%
OI-PID-A1 PID, Photo Ionization Detector for volatile organic compounds (VOCs) 0-2000 ppm 0.1 to 10 ppm, 1 ppm thereafter
± 5%
OI-254-AH PID, Photo Ionization Detector for volatile organic compounds (VOCs)

0-50 ppm

0.1 to 10 ppm, 1 ppm thereafter
± 3%

Note: Other gases and ranges available
. Contact us for additional information


WARNING! Otis Instruments equipment should only be used in conjunction with the manufacturer's instructions.
Failure to follow such instructions could result in serious injury or fatalities.


Return to Brandt Instruments
For more information  Email Mail
Brandt Instruments, Inc. 
    18568 Oak Grove Parkway 
    Prairieville, LA  70769 
Phone: 225-673-6776
    Fax: 225-673-6725

Visa, MC, AmEx, Discover Cards

Copyright © 2002-2020 Brandt Instruments, Inc.