Brandt Instuments Representing Otis Instruments Fixed Gas Detection Systems, OI-6000 Wired & Wirefree Gas Detector Sensor Assembly for Fixed Gas Detection System
                    Brandt Instruments Representing Otis Instruments

Otis Instruments OI-6000 Non-Explosion Proof Wire-Powered Sensor Assembly with Optional Relays and Radio

Otis Instruments OI-6000
Non-Explosion Proof Wire-Powered
Gas Sensor Assembly
with Display
Optional Relays & Radio

Fixed Point Gas Detection Systems

home otis instruments fixed point detectors OI-6000 NonEX OI-6000 Non-EX Wired Gas Sensor Assembly With Display


Otis Instruments OI-6000-X-X-X-X-T wire-powered non-explosion proof sensor assembly with optional radio and relays


Non-Explosion Proof Models

Wired Powered Sensor Assembly Optional Radio & Relays

The OI-6000 is a non-explosion proof ambient air fixed point remote gas sensor assembly with a wired power (3-wire), 12-25 VDC voltage, sensor assembly that can use Catalytic Bead, Electro-Chemical, PID, or Infrared sensor elements to detect a variety of gases including O2, H2S, CO, LEL, SO2, NH3, Cl2, PH3 and other toxic gases.

The OI-6000 comes standard with a 102x64 graphical LCD screen, three-button interface, non-intrusive magnetic switches. Designed to reject EMI and other forms of interference in order to avoid false gas readings.

   Non-explosion proof enclosure
   Quickly setup and install a remote sensor
   Non-intrusive calibration with MENU, ADD and SUB
   Two front panel LED indicators (Amber & Red)
   RS-485 Modbus output
   Choice of sensor elements available for gas detection
   Strobe alarms & horns can be managed by the controller
   Rapid response and clearing time

The OI-6000-EC-X-S sensor assembly model for use with electrochemical sensors only, no radio or relays. Data sheet and manual link below.

OI-6000-X-X-X-X-T and OI-6000-EC-X-S Wired Sensor Assembly
Optional Radio and/or Relays

Technical Specifications

Enclosure Materials
Sensor Housing Materials
Non-Explosion Proof | Aluminum Device Enclosure with Plastic Lid
Black Polypropylene Plastic with Stainless Steel Mesh Screen
Size & Weight

7.6" L x 5.1" W x 5.4" H (15.76" L Maximum w/ Antenna)
5 Lbs

Display 102x64 Resolution Graphical LCD Screen
Transflective (Sunlight Readable) with white LED Backlight
Interface Three push buttons: MENU, ADD, SUB
3 Magnetic Non-Intrusive Switches for Calibration (MENU, ADD and SUB)
Customizable Settings
Optional Relays
2 Individually-Configurable Alarm LED Set-Points
Optional 2 Dry-Contact Relays with Replaceable 4 Amp Fuses
Sensor Options Electrochemical, Infrared, Photo Ionization Detector (PID):
H2S, CO, O2, H2S2K, HCL, HCN, NH3, NH3300, NH3A, NO2, SO2, CO2, LEL, CL2, PH3, VOC10, VOC20, VOC50, VOC1K, VOC2K, CH2O
Power Voltage | Draw Wired Power (3-Wire) 12 to 35 VDC | 2 Watts Maximum
Signal Output Analog: 4-20mA (3-wire)
Digital: RS-485 Modbus digital output
Optional WireFree Radio GEN II 900 MHz Radio or
GEN II 2.4 GHz Radio (for overseas use)

Power Electromagnetic Interference (EMI) Filter
4-20 mA Surge Suppression
RS-485 Surge Suppression

Customizable Settings Individually-Configurable Alarm LED Set-Points
Tamb - Temperature Range -20C to +54C / -40F to 130F
Humidity Range 0% to 98% Relative Humidity, Noncondensing
Warranty Hardware: One year (limited)
Sensor: varies with sensor type
Part Number Formula OI-6000-[Sensor Type]-[Gas Type]-[Radio Option]-[Relay Option]-T

Otis Instruments Replacement Gas Sensors
For Wired or WireFree™ Sensor Assemblies

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 © 2002-2019 Brandt Instruments, Inc.