Welch Allyn LC101 CO2 Module - User Manual - Manual (Page 51)

LC101 CO
2
Module OEM Implementation Manual Section 5 - Pneumatic Operation
Welch Allyn OEM Technologies Confidential Page 51
Pump Exhaust
If a pneumatic connection at the pump exhaust is loose at either the pump exhaust or internal
monitor exhaust port, gas build up within the host monitor can occur. The Module does not report
this fault to the host.
WARNING When using oxygen or flammable anesthetics, a pump exhaust leak can
present a fire hazard. It is the responsibility of the OEM to meet regulatory
requirements with regard to single fault protection and exhaust tubing.
Refer to Section 6, Regulatory, for additional regulatory and safety information.
Pump Failure
Events resulting from pump failure include:
• low flow
• high flow
• no flow
Low Flow
The pump may fail to meet the set flow rate due to low flow caused by a nonfunctional pump. The
Module responds to status requests with a Exhaust Occlusion Or Pneumatic Leak
response.
NOTE The Module remains indefinitely in the total exhaust occlusion state if not commanded
by the host.
High Flow
The pump may fail to meet the set flow rate due to high uncontrollable flow caused by a runaway
pump. The Module reverts to the fault mode, turns OFF the pump and responds to status
requests with an Pump Failure response.
No Flow
The pump may fail to meet the set flow rate due to no flow caused by a nonfunctional or
electrically disconnected pump. The Module responds to status requests with a
Exhaust Occlusion Or Pneumatic Leak response.
WARNING The Module remains indefinitely in the total exhaust occlusion state if not
commanded by the host.