Product Overview
The Otis Instruments, Inc. GenII WireFree OI-6940 Notis Quad is a battery-powered explosion-proof 4-gas sensor
assembly that simultaneously uses up to four sensors—Electrochemical or Low-Power Infrared—for sensing an array of
toxic gases in ambient air.
The Notis Quad comes standard with a 160x104 pixel graphical LCD screen, four-button interface, non-intrusive
magnetic switches, and one radio (900MHz or 2.4GHz).
Like other Otis Instruments sensor assemblies, the Notis Quad features non-intrusive calibration and configuration. With
all adjustments made at the sensor assembly, one-man non-intrusive calibration is quick, easy, and allows the sensor
housing and enclosure to remain Class I, Division 1, Group C and D certified while in the field. Non-intrusive calibration
is made possible by using an Otis Instruments, Inc. distributed magnet to activate the
MENU
,
BACK, ADD
, and
SUB
buttons.
The Notis Quad is designed to be self-contained and to last for up to 6 months using a 3.6V 76 Amp Hour battery-pack.
The Notis Quad is field adjustable for background gas, and addressable to eliminate interference with other systems. The
device has been designed to reject EMI and other forms of interference in order to avoid false gas readings.
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