Medical gas alarm system

In a medical gas alarm system, the improvement comprising:

• a gas sensor arranged to measure a characteristic of a medical gas in a medical gas supply network;
• a programmable monitor for displaying the gas characteristic from said gas sensor;
• and
• a current loop between said gas sensor and said monitor for calibrating the desired output on said monitor using the current range of said loop.

A medical gas alarm system comprising:

• at least first and second alarm stations;
• an Ethernet interface for each station;
• said first alarm station being connected to a gas monitoring instrument in a medical gas network;
• wherein said first alarm station transmits information generated at or originally received at said first alarm station using Ethernet protocol over an available Ethernet network to said second alarm system;
• and
• wherein said second alarm station is connected to said first alarm station over the Ethernet network and said second alarm station displays the information from said first alarm station.

In a medical gas alarm system, the improvement comprising:

• memory;
• graphic images stored in the memory;
• an alarm display in communication with the memory;
• and
• an alarm processor in communication with both the memory and the alarm display.

A method of monitoring the status of a medical gas system, the method comprising:

• repeatedly measuring a characteristic of a medical gas distribution network using a sensor positioned as part of the distribution network for a defined time interval;
• sending the characteristics measured by the sensor from the sensor to memory in which the measurements can be stored and from which the indexed measurements can be retrieved;
• periodically retrieving groups of the stored and indexed measurements based upon a designated time interval and sending the groups to a CPU;
• and
• generating a report from the CPU based on the retrieved groups in a form substantially compliant with a licensing or accreditation protocol.

In a medical gas alarm system, the improvement comprising:

• a single input signal circuit in communication with source equipment;
• a processor in communication with said single input signal circuit;
• and
• at least two output relay circuits in communication with said processor.

In a medical gas alarm system the improvement comprising:

• a plurality of input signal circuits in communication with a respective plurality of source equipment;
• a processor in communication with said input signal circuits;
• and
• a single output relay circuit in communication with the processor.