Model 3350 - Control Room Oxygen Monitor0 pages

TELEDYNE
ANALYTICAL INSTRUMENTS
When an insufficient oxygen concentration triggers either alarm,
a red panel light and an audible annunciator are energized. The
alarms remain energized until the oxygen concentration has been
elevated above the trigger point.

BATTERY BACKED STANDBY POWER
An optional Battery Backed Standby Power Configuration is offered
for potential power failure or "brown out" conditions. With this
feature, power outages will not interfere with a properly working
alarm. The standby power source uses a rechargeable lead acid
battery. If the AC power is interrupted, the stand-by power supply
automatically supports analyzer operation. Periodic testing of the
battery pack is possible through a simple pushbutton inside the
instrument’s control panel.

MAINTENANCE-FREE SENSOR

MODEL 3350
Control Room
Oxygen Monitor

P

ersonnel safety is a primary issue in nearly every industry,
and no factor is of greater importance than assuring an
appropriate level of oxygen in an enclosed area. Teledyne’s
Model 3350 Control Room Oxygen Monitor accurately
measures the concentration of oxygen in control rooms, closed
atmospheres, critical breathing circuits, and other applications
that require the fail-safe monitoring of breathable, ambient air.
Simple to use and maintain, this unit shoulders the burden of
personnel safety with the quality and reliability offered by the
Teledyne name.
The 3350 is a microprocessor-based oxygen alarm monitor for
real-time measurement of the oxygen content of the atmosphere
surrounding its sensor. The standard instrument is configured
to run from an AC power source and is also available with an
optional, continuously charging, DC battery backup. The rated
battery life is approximately 17 hours configured in failsafe mode
and 48 hours in non-failsafe mode.

DUAL OXYGEN ALARMS
The alarm setpoints provide an operational band that covers
all acceptable oxygen concentrations. If the oxygen level at the
sensor crosses the adjusted setpoint of one of the alarms, that
alarm will cause the switching of relay contacts.
Designed in consideration of OSHA specifications, the standard
factory setting of the two alarms provides a CAUTION alarm at
20% oxygen and a DANGER alarm at 19.5% oxygen. To cover
special situations, a limited amount of adjustment is possible.
Both alarm setpoints are factory set (internal) to prevent
tampering or resetting by unauthorized personnel.

The 3350 uses a patented Micro-fuel Cell to measure the
concentration of oxygen in breathable air. This sensor is a sealed
electrochemical transducer with no electrolyte to change or
electrodes to clean, so it is virtually maintenance free. When it
reaches the end of its useful life, it is easily replaced.

SIMPLE CALIBRATION
Periodic calibration is quickly and easily accomplished with no
specialty gas requirements. The Micro-fuel Cell produces a linear
output from zero to 100% oxygen so ambient air or readily available
instrument grade air (20.9% oxygen) can be economically used for
calibration. Also, since the Micro-fuel Cell has an absolute zero, no
zero gases are needed.

EASY TO INSTALL
The 3350 is designed for easy installation. Mount the unit to a wall
or bulkhead, connect AC power, and the installation is complete.
The unit is lightweight with a slim profile, eliminating the need
for special reinforcement in most installations. (Note: Teledyne
recommends consulting a safety expert to select a suitable location
for installation.)

REMOTE PROBE AVAILABLE
A special version of the 3350 is available with a remote-mountable
oxygen probe. This option permits the user to install the oxygen
probe inside the control room, while the control unit is mounted
outside. This allows personnel to see the analyzer and confirm a
safe level of ambient oxygen is present before entering the control
room.

Built for reliability and performance