Brandt Instruments Representing Otis Instruments

Otis Instruments
Fixed Gas Detection Systems
Remote Wired or WireFree™ Sensor

Monitors

Otis Instruments OI-6400 4-Channel Wired Gas Detection System

The Otis Instruments Model OI-6400 Gen II ambient air 4-channel wire powered remote gas sensor assembly that uses up to four electro-chemical, PID, or Infrared sensor elements to detect a variety of gases.  Configurable with integrally mounted sensors, or wired remote sensor(s) and choice of alarm strobe colors or LED tri-light and horn. Non explosion-proof monitor. Not for use in classified areas.

OI-7432 Monitor

OI-7032 Touch Screen Monitor

Otis Instruments Multi-Channel Monitors

Multi-channel monitors configurable with 2 to 64 channels for wired, WireFree™ or hybrid systems which can use a combination of both wired and wirefree remote sensors.  Will only work with OI-6000 sensors.  Radio line-of-sight of 5-7 miles for sensor communication.  Call us for details and help in designing your system.

Series 7400 Wired Controller Systems

OI-7480 ProSafe 4x8 Wired (4-20mA) 8 or 12 channel monitor / transmission controller
OI-7432 ProSafe 4x32 Wired (ModBus Interface) 32-channel gas monitor / transmission controller

Hybrid Systems for WireFree™ Remote Sensors with 4 Optional Wired Sensor Channels
Up to 4 channels can be wired (4-20mA) gas sensors or add temp, tank level, or 3rd party sensors.

OI-7010 32-Channel Hybrid Monitor with support for up to 4 wired sensors
OI-7032 32-Channel Touch-Screen Monitor with datalogging & trend chart, for WireFree™ sensors.

OI-9850 WireFree Multi-Channel Interface Receiver

Engineered to accommodate the time-tested WireFree™ product line of Otis Instruments, the Interface OI-9850 is a 255 channel receiver that works with both Otis Gen I and Gen II WireFree™ Remote Sensor Assemblies displaying though a PLC, PC or other compatible monitor.

    WireFree Multi-Channel Interface Data Sheet

    WireFree Multi-Channel Interface Manual

Sensor Assemblies

OI-6000 Series Wired Explosion Proof Remote Sensor Assembly

Otis Instruments OI-6000 Sensor Assembly is an innovative wired gas detection system designed to monitor gas in hostile environments without the use of wires or conduit from the controller to the sensor.  The OI-6000 features 4-20mA (3-wire) & RS-485 Modbus outpust, and can be customized to offer relay and radio (900MHz or 2.4GHz for overseas use) options. Sensor assembly can use either Catalytic Bead, Electro-Chemical, PID, or Infrared sensor elements to detect a variety of gases.

OI-6750 2-Wire Loop-Power Toxic Gas Sensor Assembly

The OI-6750 is an ambient air fixed point remote gas sensor assembly with a two-wire loop-power sensor assembly that uses an electro-chemical sensor element to detect a variety of toxic gases including O2, H2S, SO2, CO. Display wiith a three-button interface, non-intrusive magnetic switches, in an Otis-blue explosion-proof enclosure and a 4-20mA output. 

OI-6900 Dual-Battery-Powered WireFree™ Remote Sensor Assembly

The OI-6900 is designed to be self-contained with a 2-year maximum battery life depending on sensor type.  The remote sensor functions by transmitting radio wave messages to the OI-7010 (or any other Otis receiving controller).  The device has been designed to reject EMI and other forms of interference in order to prevent false gas readings.

OI-6900 Cube Series Non-Explosion Proof Dual-Battery-Powered WireFree™ Sensor Assembly

The Otis Instruments OI-6900 Cube Series non-explosion proof sensor assembly is an ambient air single fixed point dual battery-powered WireFree remote sensor assembly. Uses an electrochemical element to detect a variety of gases including O2, LEL, H2S, CO, HCL, HCN, SO2, NH3, NH3A, Cl2, PH3 as well as other toxic gases. Available with radio and optional relays. Dual-battery has a 2-Year maximum battery life.

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

OI-6940 Notis Quad is a battery-powered explosion-proof 4-gas remote sensor assembly that utilizes up to four sensors - Electrochemical or Low-Power Infrared - to detect an array of toxic gases in ambient air.  It is designed to be self-contained and last for up to 6 months using a 3.6V 76 Amp-Hour battery pack.  Sensor housing and enclosure are rated Class I, Division 1, Group C and D.  Non-intrusive setup and calibration is made possible by a proprietary Otis Instruments system.

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

OI-6940 Notis Quad battery-powered non-explosion-proof 4-gas remote sensor assembly that utilizes up to four sensors to detect an array of toxic gases in ambient air.  It is designed to be self-contained and last for up to 6 months using a 3.6V 76 Amp-Hour battery pack. Non-intrusive setup and calibration is made possible by a proprietary Otis Instruments system.

Transmitters, Relayers, Repeaters, Viewers

OI-5950 WireFree Battery-Powered Explosion-Proof Switch-State Transmitter

OI-5950 is a battery powered WireFree Switch-State Transmitter for use in conjunction with a new or existing WireFree system.  The OI-5950 receives signals from up to two individually addressable remote sensors (pressure switch, temperature sensor, flow sensor, tank level sensor, etc.), and then transmits the state of (and change of state of) that switch..

   OI-5950 Transmitter Assembly Data Sheet

OI-7530 Relay-Alarm

OI-7530 Explosion-Proof, WireFree Monitor, Relayer & Receiver

OI-7530 Monitor, Relayer: explosion-proof & non-explosion proof models, DC Powered 32-channel WireFree™ remote alarm & switching device with 3 relays.  Channel monitor, triggers strobes, alarms, horns; switches without wires & conduit.

OI-9900 Explosion-Proof Signal Repeater

The Gen II WireFree Repeater OI-9900 is a wireless device that receives messages from a remote sensor assembly and repeats the identical message to a receiver/monitor, allowing for greater distance between devices than with a sensor assembly/monitor setup alone.  The Repeater operates with 12-35 Volts DC, and is equipped with two antennas and two radios.   Application areas include pipelines, manufacturing plants, paper mills, food processing plants.

OI-9100 WireFree™ Signal Strength Viewer

OI-9100 WireFree™ hand-held signal strength meter is designed to display the status of any WireFree™ Gen II remote gas detection device within range. 4-line scrolling display shows channel, sensor type, reading, signal strength, Time Since Last Message (TSLM), and battery condition.

   WireFree Signal Strength Viewer Data Sheet
   WireFree Signal Strength Viewer Manual