Ambient Oxygen Monitor
Designed for simplicity in installation and use, this ambient Oxygen Monitor plugs into any 120 VAC wall outlet for instant area monitoring in the MRI suite.

A cryogen leak in the MRI suite can be very dangerous. Even though the gas itself is not toxic, it can displace oxygen in the air and cause asphyxiation before the people in the room are aware of what is happening. OHSA has determined that "oxygen levels [in the air] below 19.5% are inadequate for an entrant's respiratory needs... Victims of asphyxiation often are unaware of their predicament until they are incapable of saving themselves or even calling for help."
(shown with optional vanity cover)
Magmedix offers, at a very attractive price, a wall-mounted atmospheric oxygen monitor that is completely safe within the MRI suite when mounted on the wall, and will not cause any imaging artifacts. Should the level of oxygen in the room drop below 19.5%, the monitor sounds an alarm.

During routine cryogen fills, or in the event of a magnet quench, it is important to maintain adequate ventilation. Further more, room air should be closely monitored to safeguard against the health hazards associated with the displacement of oxygen.

Please note: The monitor's power pack is magnetic and must be kept a safe distance from the magnet.

Magmedix recommends that the oxygen sensor with-in the Monitor be Calibrated every 3 months and the sensor be changed every two years.
Engineering Specifications for Ambient Oxygen Monitor:
Item Number: (Monitor)
03-M02
Item Number: (Replacement Sensor)
03-0129
Item Number: (Optional Vanity Cover)
03-67001198
Size:
7.2" X 5.6" X 1.6" (18.29cm X 14.22cm X 4.06cm)
Shipping Weight:
17 oz.(.48 kg)
Display:
3 digit high resolution LED
Temperature Range:
-4F to 122F (-20C to 50C)
Relative Humidity Range:
0-99%
Measuring Range/Resolution:
0-30% volume in 0.1% increments
Accuracy At Calibration Temp.:
+/- 0.5% of volume, calibrated at 21%
Accuracy Over Full Temp. Range:
+/- 0.8% of volume, calibrated at 21%
Standard Alarm Set Points:
19.5% low, 23.5% high
Visual Alarms:
Ultra-bright LED: Amber - low, Red - high
Audio Alarms:
85 dB at 3 meters
Power:
120 Vac plug-in
User Interface:
Push button alarm silence, calibration, and fresh air zero function control
Enclosure:
NEMA 1 General Purpose indoor use, electroplated for RFI protection
Mounting:
Wall mounted, two screw placement
Warranty:
1 year including sensors (prorated)
 

Documented Accident Cases Involving Non-MRI Safe Equipment

Source: MDR Database
Access Number: M409350
Report Type: Serious Injury
Date FDA Received: 09/17/1993

The Magnet quenched and the vent system failed, releasing Helium into the Magnet room. The Tech could not open the door because the room pressurized. The Tech broke the observation window to gain access to the room. The PT was removed and taken to the ER, where oxygen was administered. The PT exhibited slurred speech and was disoriented. The venting system is being inspected.

 

Documented Accident Cases Involving Non-MRI Safe Equipment

Source: MDR Database
Access Number: M161069
Report Type: Serious Injury
Date FDA Received: 11/11/1988

It was reported to company, that during Magnet quench the venting system failed, causing Helium to vent into scan room. The Tech strained his back when he was removing the PT from the scan room. There was no PT injury. Company service personnel report that the Tech involved in the incident had been trained in the proper procedure for removal of PTS in an emergency and that this procedure for removal of PTS in an emergency and that this procedure was not followed.

 
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