Welch Allyn Duet CO2 Module - User Manual - Manual (Page 25)

Duet CO
2
Module OEM Implementation Manual
Welch Allyn OEM Technologies Confidential Page 25
Sidestream Interface
Pump
The pump is mounted on the CO
2
main processor board and is electrically connected directly to the
sidestream daughter board. The pump wiring harness length is typically 4 inches and is connected to
the sidestream daughter board via a 2 pin connector (Molex p/n 22-01-3027).
Note : The pump wiring harness length may be modified to accommodate OEM design
requirements if, for example, the pump requires mounting off of the main processor board.
The pump wiring meets typical insulation standards but does not meet patient isolation
requirements. If the pump must be moved to a different location, such as a non-isolated section,
patient isolation requirements must not be compromised. Refer to Regulatory Section for
additional safety information.
Water trap Receiver
The internal space available in the host monitor must be considered when incorporating the Water trap
receiver into a design. To accommodate this requirement, two Water trap receivers are offered: the
long and short receiver. The short Water trap receiver offers less intrusion into the host monitor but
causes the Water trap to extend further externally.
Water Trap Receiver Switch
The Water trap receiver switch is wired in the “normally open” configuration.
The Water trap receiver switch connects directly to the sidestream daughter board via a wiring harness
and connector. The Water trap receiver switch assembly is equipped with a 2 pin connector (Molex p/n
22-01-3027) which electrically connects directly to the sidestream daughter board. A wiring harness is
provided and may be altered to accommodate OEM design requirements.
Note : The Water trap receiver switch wiring meets typical insulation standards but does not meet
patient isolation requirements. When applicable, harness routing must not violate patient isolation
requirements. Refer to Regulatory Section for additional safety information.
Exhaust Tubing
In the event of an exhaust tubing malfunction, gas buildup can occur within the host system.
WARNING To protect against this occurring, exhaust tubing must be single fault protected.