Brandt Instruments Representing Otis Instruments Fixed Gas Detection System, OI-6940 Notis Quad Battery Powered WireFree Explosion-Proof 4-Gas Detector Sensor Assembly With Display for Fixed Gas Detection System
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Otis Instruments OI-6940 Notis Quad
WireFree™ 4-Gas Explosion Proof
Remote Sensor Assembly with Display
Fixed Point Gas Detection Systems

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Otis Instruments OI-6940 Notis Quad 4-Gas WireFree Sensor Assembly with Optional Cart

OI-6940 Notis Quad WireFree™ 4-Gas
Explosion-Proof Remote Sensor Assembly

The Otis Instruments OI-6940 Notis Quad is a self contained remote wirefree battery-powered explosion-proof 4-gas sensor assembly that can simultaneously use up to four sensors for sensing an array of toxic gases in ambient air.  It can use electro-chemical or infrared sensor elements to detect a variety of gases including CO, H2S, HCN, O2, SO2, and LEL as well as other toxic gases. An optional 2-wheeled cart/stand is available to add mobility in the field..

   Explosion and weather proof enclosure
    Glass lid for viewing the display
    102x64 graphical LCD screen
   Quickly setup and install a remote sensor(s)
   Non-intrusive calibration & setup with MENU, BACK, ADD and SUB
    Electro-chemical or IR sensor elements for gas detection
   Battery designed to last for up to 6 months
   Easy radio interface with Otis multi-channel control monitors 
    Rapid response and clearing time

                                                                                     

OI-6940 Notis Quad WireFree Explosion-Proof
4-Gas Remote Gas Detector Sensor Assembly
Technical Specifications

Enclosure
 Explosion proof
Size & Weight 7 in. D x 11 in. W x 24 in. H (Max. Dimensions w/ Attachments)
25 lbs
Display 160x104 Resolution Graphical LCD Screen Transflective (Sunlight Readable) with LED Backlight
Interface

Four push buttons: MENU, BACK, ADD, SUB
Four corresponding magnetic switches for non-intrusive setup and calibration
Tamb Temperature Range -40° C to +60° C
Sensor Types Electro-chemical or low powered Irfrared
H2S, O2, SO2, Cl2, H2, NH3, LEL and more
Remote Sensors OI-501-7 Remote Sensor Kit , Electrochemical Sensors - Up to 250 Feet of Cable, Low Power Infrared Sensors - Up to 40 Feet of Cable
Enclosure Certifications Class I, Groups B, C, D; Class II, Groups E, F, G; Class III;
Class I, Zone 1, Aex d IIB+H2; Ex d IIB+H2
Battery Type & Voltage Battery Powered 3.6 V (76 Ah) Battery Pack (Non-Rechargeable
Battery Life 6 Months Maximum Battery Life
Radio Type 2.4 GHz ISM, 100 mW or 900 MHz 200 mW
Networks 52 Networks (GEN II 900 MHz Radio) or 78 Networks (GEN II 2.4 GHz Radio)
255 Addresses per Network
Warranty

Hardware: One year (limited)
Sensor: Varies with Sensor Type and Element and is Subject to Otis Verification
Battery: 90 days from ship date

Part Number Formula

OI-6940-[Number of Sensors]-[Radio]-XP
 OI-6940-X-X-XP

Optional Accessories OI-6940-ST, 2-Wheeled Cart/Stand
Otis WireFree Logo CSA Certification Icon
ATEX Certification Icon

Otis Instruments OI-6940 Notis Quad WireFree 4-Gas Explosion Proof Sensor Assembly Diagram

OI-6940 Notis Quad WireFree EXP 4-Gas Sensor Assembly Diagram

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

Part # Description Range Resolution
Accuracy
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
±1%
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

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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.

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1-800-337-6291  
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 Fax: 225-673-6725

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